WO2023054961A1 - 경화성 조성물 - Google Patents
경화성 조성물 Download PDFInfo
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- WO2023054961A1 WO2023054961A1 PCT/KR2022/014010 KR2022014010W WO2023054961A1 WO 2023054961 A1 WO2023054961 A1 WO 2023054961A1 KR 2022014010 W KR2022014010 W KR 2022014010W WO 2023054961 A1 WO2023054961 A1 WO 2023054961A1
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- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
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- 125000002883 imidazolyl group Chemical group 0.000 description 1
- 125000001041 indolyl group Chemical group 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 125000004491 isohexyl group Chemical group C(CCC(C)C)* 0.000 description 1
- 125000001972 isopentyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 description 1
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 description 1
- 125000000555 isopropenyl group Chemical group [H]\C([H])=C(\*)C([H])([H])[H] 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 125000002183 isoquinolinyl group Chemical group C1(=NC=CC2=CC=CC=C12)* 0.000 description 1
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- 231100001231 less toxic Toxicity 0.000 description 1
- AYLRODJJLADBOB-QMMMGPOBSA-N methyl (2s)-2,6-diisocyanatohexanoate Chemical compound COC(=O)[C@@H](N=C=O)CCCCN=C=O AYLRODJJLADBOB-QMMMGPOBSA-N 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 description 1
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- 125000003538 pentan-3-yl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])C([H])([H])[H] 0.000 description 1
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- 125000004625 phenanthrolinyl group Chemical group N1=C(C=CC2=CC=C3C=CC=NC3=C12)* 0.000 description 1
- 125000001484 phenothiazinyl group Chemical group C1(=CC=CC=2SC3=CC=CC=C3NC12)* 0.000 description 1
- 125000001644 phenoxazinyl group Chemical group C1(=CC=CC=2OC3=CC=CC=C3NC12)* 0.000 description 1
- 125000000286 phenylethyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])C([H])([H])* 0.000 description 1
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- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 125000003373 pyrazinyl group Chemical group 0.000 description 1
- 125000002098 pyridazinyl group Chemical group 0.000 description 1
- 125000004076 pyridyl group Chemical group 0.000 description 1
- 125000000714 pyrimidinyl group Chemical group 0.000 description 1
- 125000000168 pyrrolyl group Chemical group 0.000 description 1
- 125000002294 quinazolinyl group Chemical group N1=C(N=CC2=CC=CC=C12)* 0.000 description 1
- 125000002943 quinolinyl group Chemical group N1=C(C=CC2=CC=CC=C12)* 0.000 description 1
- 125000001567 quinoxalinyl group Chemical group N1=C(C=NC2=CC=CC=C12)* 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 235000003441 saturated fatty acids Nutrition 0.000 description 1
- 229910052706 scandium Inorganic materials 0.000 description 1
- SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 125000003548 sec-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- TUNFSRHWOTWDNC-HKGQFRNVSA-N tetradecanoic acid Chemical compound CCCCCCCCCCCCC[14C](O)=O TUNFSRHWOTWDNC-HKGQFRNVSA-N 0.000 description 1
- 125000001113 thiadiazolyl group Chemical group 0.000 description 1
- 125000000335 thiazolyl group Chemical group 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 125000004306 triazinyl group Chemical group 0.000 description 1
- 125000001425 triazolyl group Chemical group 0.000 description 1
- 150000004072 triols Chemical class 0.000 description 1
- 229910021642 ultra pure water Inorganic materials 0.000 description 1
- 239000012498 ultrapure water Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 125000005023 xylyl group Chemical group 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
Classifications
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- C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
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- C08G63/85—Germanium, tin, lead, arsenic, antimony, bismuth, titanium, zirconium, hafnium, vanadium, niobium, tantalum, or compounds thereof
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- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
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Definitions
- This application relates to curable compositions, thermal interface materials (TIMs) and their uses.
- heat dissipation materials such as thermal interface materials (TIMs)
- TIMs thermal interface materials
- Various types of heat dissipation materials are known.
- a material in which a resin binder is filled with a filler having heat-dissipating properties is known (for example, Patent Document 1).
- a silicone resin, a polyolefin resin, an acrylic resin, an epoxy resin, or the like is usually used as a resin binder.
- the heat dissipation material is basically required to have excellent thermal conductivity, and additional functions are also required depending on the use. For example, depending on the application, it may be required that the heat dissipation material exhibit high thermal conductivity and low adhesion to a specific adherend.
- the heat dissipation material when it is necessary to replace a part in contact with a heat dissipation material in a product or to change a location of a heat dissipation material in a process, the heat dissipation material needs to exhibit low adhesive strength.
- materials showing low adhesive strength include materials to which a silicone resin is applied as a resin binder.
- silicone resins are relatively expensive.
- silicone resins contain components that cause contact failure and the like when applied to electronic/electrical products, their uses are limited.
- the polyurethane material also applied in Patent Literature 1 can form a heat dissipation material having high thermal conductivity and has various other advantages, but is a material that exhibits high adhesive strength to most adherends.
- plasticizers formulated in large amounts to control adhesive strength have problems such as damaging the inherent merits of the material itself or being eluted during use.
- heat dissipation materials may require flame retardant properties in order to secure safety against fires generated in electrical products, electronic products, or batteries.
- a method of securing flame retardant properties there is a method of blending a component known as a so-called flame retardant.
- the flame retardant should have good mixing properties with respect to raw materials and additionally added additives, do not reach the mechanical properties of the final product, and should minimize the generation of toxic gases in consideration of the use environment.
- a flame retardant containing a halogen element a so-called halogen flame retardant, for example, a brominated flame retardant
- a flame retardant containing the halogen element can secure excellent flame retardant properties, there is a problem that when incinerated, dioxins, which are environmentally harmful substances, as well as corrosiveness may affect the mechanical properties of the final product and are harmful to the human body.
- a phosphorus (P) element-containing flame retardant (so-called phosphorus-based flame retardant) is used as the flame retardant. It is known that the phosphorus-containing flame retardant is less toxic and can secure excellent flame retardant properties compared to the halogen element-containing flame retardant, but is expensive and has a problem of weakening heat dissipation properties.
- Patent Document 1 Republic of Korea Patent Publication No. 10-2016-0105354
- the object of this application is to provide a curable composition, a thermal interface material (TIM), and a use thereof.
- the thermal interface material may be formed by curing the curable composition.
- One object of the present application is to make the curable composition or the thermal interface material exhibit low adhesive strength to a predetermined adherend while having a low density and high thermal conductivity.
- the present application also aims to secure excellent flame retardant properties in a state where halogen flame retardants and phosphorus-based flame retardants are not used or the use ratio is minimized, and to exhibit ejection properties suitable for the process and thixotropy.
- One object of the present application is to provide a product including the curable composition, a cured product of the curable composition, or a thermal interface material.
- the corresponding physical properties are the physical properties measured at room temperature unless otherwise specified.
- room temperature is a natural temperature that is not heated or cooled, for example, any temperature within the range of 10 °C to 30 °C, for example, about 15 °C or more, about 18 °C or more, It may mean a temperature of about 20 ° C or more, about 23 ° C or more, about 27 ° C or less, or 25 ° C.
- the unit of temperature is Celsius (°C).
- the physical properties mentioned in this application if the measured pressure affects the physical properties, unless otherwise specified, the physical properties are measured at atmospheric pressure.
- Normal pressure a term used in this application, refers to atmospheric pressure within the range of about 700 mmHg to 800 mmHg as natural pressure that is not pressurized and reduced.
- a to b used in this application mean within the range between a and b while including a and b.
- including a to b parts by weight is the same as meaning included within the range of a to b parts by weight.
- Relative humidity a term used in this application, is expressed as a percentage (%) of the ratio of the amount of water vapor currently contained in air in a unit volume to the maximum saturated vapor pressure that air in a unit volume can contain, It can be expressed as RH%.
- the weight average molecular weight (M w ), which is a term used in this application, can be measured using GPC (Gel permeation chromatography), and can be specifically measured according to the following physical property measurement method.
- the polydispersity index (PDI) which is a term used in this application, is the weight average molecular weight (M w ) divided by the number average molecular weight (M n ) (M w /M n ), and the molecular weight of the polymer means distribution.
- the number average molecular weight (M n ) can also be measured using GPC (Gel permeation chromatography) if necessary.
- Excellent thermal conductivity is a condition in which a curable composition is made of a cured product (sample) having a diameter of 2 cm or more and a thickness of 5 mm, ASTM D5470 standard or ISO 22007- 2
- the measured thermal conductivity is about 2.0 W/mK or more, 2.1 W/mK or more, 2.2 W/mK or more, 2.3 W/mK or more, 2.4 W/mK or more, 2.5 W/mK or more, 2.6 W/mK or more, 2.7 W/mK or more, 2.8 W/mK or more, 2.9 W/mK or more, or 3.0 W/mK or more.
- low specific gravity or low specific gravity used in this application may refer to a case where the specific gravity measured at room temperature is 3 or less with respect to a curable composition, a cured product or a filler of the curable composition.
- high specific gravity or high specific gravity used in this application may refer to a case where the specific gravity measured at room temperature is greater than 3 for a curable composition, a cured product or a filler of the curable composition, or the like.
- Excellent flame retardancy which is a term used in this application, may mean a case where the result evaluated according to the following physical property measurement method (UL94V) is V-0 grade or higher.
- Viscosity which is a term used in this application, may be a value measured at 25 ° C. unless otherwise specified, and may be specifically measured according to the method for measuring physical properties below.
- the term used in this application which does not substantially include a specific material, means that the specific material is not intentionally included. However, in the case of naturally containing the specific material, unless otherwise specified, it may be said that it does not substantially include 0.1% by weight or less, 0.05% by weight or less, or 0.01% by weight or less based on the total weight.
- substitution a term used in this application, means that a hydrogen atom bonded to a carbon atom of a compound is replaced with another substituent, and the position of substitution is not particularly limited as long as the hydrogen atom is substituted, i. In the case of more than one substitution, the substituents may be the same as or different from each other.
- halogen or halogen element used in this application refers to a group 17 element on the periodic table, and in this application, among the group 17 elements, chlorine (Cl), iodine (I), bromine (Br) and fluorine ( F) may mean a group consisting of.
- substituent refers to an atom or group of atoms replacing one or more hydrogen atoms on the parent chain of a hydrocarbon.
- substituents are described below, but are not limited thereto, and the substituents may be further substituted with substituents described below or may not be substituted with any substituents unless otherwise specified in the present application.
- alkyl group or an alkylene group which is a term used in this application, is a straight-chain or branched group having 1 to 20 carbon atoms, or 1 to 16 carbon atoms, or 1 to 12 carbon atoms, or 1 to 8 carbon atoms, or 1 to 6 carbon atoms, unless otherwise specified. It may be a chain alkyl group or an alkylene group, or a cyclic alkyl group or alkylene group having 3 to 20 carbon atoms, or 3 to 16 carbon atoms, or 3 to 12 carbon atoms, or 3 to 8 carbon atoms, or 3 to 6 carbon atoms.
- the cyclic alkyl group or alkylene group includes an alkyl group or alkylene group having only a cyclic structure and an alkyl group or alkylene group having a cyclic structure.
- both a cyclohexyl group and a methyl cyclohexyl group correspond to a cyclic alkyl group.
- an alkyl group or an alkylene group is specifically methyl (ene), ethyl (ene), n-propyl (ene), isopropyl (ene), n-butyl (ene), isobutyl ( (ene), tert-butyl (rene), sec-butyl (ene), 1-methyl-butyl (ene), 1-ethyl-butyl (ene), n-pentyl (ene), isopentyl (ene), neopentyl (ene), tert-pentyl (ene), n-hexyl (ene), 1-methylpentyl (ene), 2-methylpentyl (ene), 4-methyl-2-pentyl (ene), 3,3-dimethyl Butyl (ene), 2-ethylbutyl (ene), n-heptyl (ene), 1-methylhexyl (ene), n-octy
- the cycloalkyl group or cycloalkylene group is specifically cyclopropyl (ene), cyclobutyl (ene), cyclopentyl (ene), 3-methylcyclopentyl (ene), 2,3-dimethylcyclopentyl (ene), cyclo Hexyl (ene), 3-methylcyclohexyl (ene), 4-methylcyclohexyl (ene), 2,3-dimethylcyclohexyl (ene), 3,4,5-trimethylcyclohexyl (ene), 4-tert -Butylcyclohexyl (ene), cycloheptyl (ene), cyclooctyl (ene), etc. may be exemplified, but are not limited thereto.
- alkenyl group or alkenylene group which is a term used in this application, is a straight chain or branched group having 2 to 20 carbon atoms, or 2 to 16 carbon atoms, or 2 to 12 carbon atoms, or 2 to 8 carbon atoms, or 2 to 6 carbon atoms, unless otherwise specified.
- chain acyclic alkenyl or alkenylene groups; It may be a cyclic alkenyl group or alkenylene group having 3 to 20 carbon atoms, or 3 to 16 carbon atoms, or 3 to 12 carbon atoms, or 3 to 8 carbon atoms, or 3 to 6 carbon atoms.
- a cyclic alkenyl group or alkenylene group corresponds to a cyclic alkenyl group or alkenylene group.
- the cycloalkenyl group or cycloalkenylene group is specifically cyclopropenyl (ene), cyclobutenyl (ene), cyclopentenyl (ene), 3-methylcyclopentenyl (ene), 2,3-dimethylcyclophene tenyl(ene), cyclohexenyl(ene), 3-methylcyclohexenyl(ene), 4-methylcyclohexenyl(ene), 2,3-dimethylcyclohexenyl(ene), 3,4,5- Trimethylcyclohexenyl (ene), 4-tert-butylcyclohexenyl (ene), cycloheptenyl (ene), cyclooctenyl (ene) and the like may be exemplified, but are not limited thereto.
- alkynyl group or alkynylene group which is a term used in this application, is a straight chain or branched group having 2 to 20 carbon atoms, or 2 to 16 carbon atoms, or 2 to 12 carbon atoms, or 2 to 8 carbon atoms, or 2 to 6 carbon atoms, unless otherwise specified.
- a cyclic alkynyl group or alkynylene group it corresponds to a cyclic alkynyl group or alkynylene group.
- ethynyl rene
- n-propynyl ene
- isopropynyl ene
- n-butynyl ene
- isobutynyl ene
- tert-butynyl ene
- sec-Butynyl Rene
- 1-methyl-Butynyl Rene
- 1-Ethyl-Butynyl Rene
- n-Pentynyl Rene
- Isopentynyl Neopentynyl (Rene), tert-pentynyl(ene), n-hexynyl(ene), 1-methylpentynyl(ene), 2-methylpentynyl(ene), 4-methyl-2-pentynyl(ene), 3,3- dimethylbutynyl(ene), 2-ethylbutynyl(ene), n-heptyn
- cycloalkynyl group or cycloalkynylene group is specifically cyclopropynyl (Lene), cyclobutynyl (Lene), cyclopentynyl (Lene), 3-methylcyclopentynyl (Lene), 2,3-dimethylcyclopentyl group.
- Nyl(ene), cyclohexynyl(ene), 3-methylcyclohexynyl(ene), 4-methylcyclohexynyl(ene), 2,3-dimethylcyclohexynyl(ene), 3, 4,5-trimethylcyclohexynyl (ene), 4-tert-butylcyclohexynyl (ene), cycloheptynyl (ene), cyclooctynyl (ene), etc. may be exemplified. Not limited to this.
- the alkyl group, alkylene group, alkenyl group, alkenylene group, and alkynyl group may optionally be substituted with one or more substituents.
- substituents include halogen (chlorine (Cl), iodine (I), bromine (Br), fluorine (F)), aryl group, heteroaryl group, epoxy group, alkoxy group, cyano group, carboxyl group, acryl It may be at least one selected from the group consisting of a loyl group, a methacryloyl group, an acryloyloxy group, a methacryloyloxy group, a carbonyl group, and a hydroxyl group, but is not limited thereto.
- an aryl group refers to an aromatic ring in which one hydrogen is removed from an aromatic hydrocarbon ring, and the aromatic hydrocarbon ring may include a monocyclic or polycyclic ring.
- the aryl group is not particularly limited in carbon atoms, but unless otherwise specified, aryl having 6 to 30 carbon atoms, or 6 to 26 carbon atoms, or 6 to 22 carbon atoms, or 6 to 20 carbon atoms, or 6 to 18 carbon atoms, or 6 to 15 carbon atoms may be
- the term arylene group used in this application means that the aryl group has two bonding sites, that is, a divalent group. The description of the aryl group described above may be applied except that each is a divalent group.
- the aryl group may be, for example, a phenyl group, a phenylethyl group, a phenylpropyl group, a benzyl group, a tolyl group, a xylyl group, or a naphthyl group, but is not limited thereto.
- a heteroaryl group is an aromatic ring containing one or more heteroatoms other than carbon, and specifically, the heteroatoms are nitrogen (N), oxygen (O), sulfur (S), selenium (Se) and One or more atoms selected from the group consisting of nium (Te) may be included.
- atoms constituting the ring structure of the heteroaryl group can be referred to as a reducing group.
- heteroaryl groups may include monocyclic or polycyclic rings.
- the heteroaryl group is not particularly limited in carbon atoms, but has 2 to 30 carbon atoms, or 2 to 26 carbon atoms, or 2 to 22 carbon atoms, or 2 to 20 carbon atoms, or 2 to 18 carbon atoms, or 2 to 15 carbon atoms, unless otherwise specified. It may be a heteroaryl group. In another example, the number of reducing atoms of the heteroaryl group is not particularly limited, but may be a heteroaryl group having 5 to 30, 5 to 25, 5 to 20, 5 to 15, 5 to 10, or 5 to 8 reducing atoms.
- the heteroaryl group is, for example, a thiophene group, a furan group, a pyrrole group, an imidazolyl group, a thiazolyl group, an oxazolyl group, an oxadiazolyl group, a triazolyl group, a pyridyl group, and a bipyridyl group.
- heteroarylene group which is a term used in this application, means a heteroaryl group having two bonding sites, that is, a divalent group.
- a divalent group The above description of the heteroaryl group may be applied except that each is a divalent group.
- the aryl group or heteroaryl group may be optionally substituted with one or more substituents.
- substituents include halogen (chlorine (Cl), iodine (I), bromine (Br), fluorine (F)), aryl group, heteroaryl group, epoxy group, alkoxy group, cyano group, carboxyl group, acryl It may be at least one selected from the group consisting of a loyl group, a methacryloyl group, an acryloyloxy group, a methacryloyloxy group, a carbonyl group, and a hydroxyl group, but is not limited thereto.
- curable compositions refers to a composition that is cured by a curing reaction.
- FT-IR Fastier Transform Infrared
- DSC Different Thermal Analysis
- DMA Dynamic Mechanical Analysis
- NCO peak based conversion rate at around 2250 cm -1 confirmed by FT-IR analysis based on curing for 24 hours at room temperature and normal humidity conditions ( conversion) can be confirmed from more than 80%.
- Curing in the present application may be the same as not only attempting to perform a curing reaction, but also appropriately completing curing as described above.
- a curable composition according to an example of the present application may be a resin composition.
- resin composition used in this application refers to a composition containing a component known in the art as a resin or a composition that does not contain a resin but includes a component capable of forming a resin through a curing reaction or the like. Accordingly, the scope of the term resin or resin component in this application includes not only components generally known as resins, but also components capable of forming resins through curing and/or polymerization reactions.
- the curable composition according to an example of the present application may be cured to form a thermal interface material (TIM). Therefore, in the present application, the cured product of the curable composition and the thermal interface material may refer to the same object.
- TIM thermal interface material
- the curable composition according to an example of the present application may be a one-component or two-component composition.
- a one-component composition refers to a curable composition in which components participating in curing are physically in contact with each other.
- the term two-component composition used in this application may refer to a curable composition in which at least some of the components participating in curing are physically separated and included.
- the curable composition according to an example of the present application may be a room temperature curing type, a heat curing type, an energy ray curing type, and/or a moisture curing type.
- room temperature curing type used in this application refers to a curable composition capable of initiating and/or proceeding in a curing reaction at room temperature.
- heat-curing type used in this application refers to a curable composition in which a curing reaction can be initiated and/or progressed by application of heat.
- the term energy ray curable type used in this application refers to a curable composition in which a curing reaction can be initiated and/or progressed by irradiation with energy rays (eg, ultraviolet rays or electron beams).
- energy curing type used in this application refers to a curable composition in which a curing reaction can be initiated and/or progressed in the presence of moisture.
- the curable composition according to an example of the present application may be a solvent type or a non-solvent type.
- a non-solvent type may be appropriate when considering the application efficiency or the load on the environment.
- the curable composition according to an example of the present application may be a polyurethane composition.
- the curable composition may include polyurethane or may include a component capable of forming polyurethane.
- a thermal interface material that is a cured product of the curable composition may include the polyurethane.
- the polyurethane in one example, may be formed by a reaction of components in the subject part and the curing agent part, which will be described later.
- a curable composition or a cured product thereof may have at least one physical property among the following physical properties.
- Each physical property described below is independent, and one physical property does not take precedence over another physical property, and at least one or two or more of the physical properties described below may be satisfied.
- the physical properties described below are caused by a combination of each component included in the curable composition or a cured product thereof.
- the curable composition or a cured product thereof according to an example of the present application may exhibit low adhesive strength with respect to a specific adherend or form a cured product capable of exhibiting low adhesive strength.
- This curable composition may be the above polyurethane composition.
- Polyurethane is known as an adhesive material capable of exhibiting excellent adhesion to various adherends. Therefore, as a method of making the polyurethane composition exhibit low adhesive strength to an adherend, a method of introducing a component that lowers the adhesive strength, such as a plasticizer, is usually used.
- the adhesive strength of the polyurethane material can be lowered, but the component deteriorates other physical properties that could be secured in the polyurethane or elutes out of the material during the use of the polyurethane material. Problems can arise.
- the low adhesive strength can be achieved for polyurethane materials while minimizing the amount of adhesive strength reducing components such as plasticizers. Therefore, in the present application, it is possible to provide a material that solves the problem of high adhesive strength that is not required depending on the use while taking the advantages of polyurethane material.
- the curable composition or a cured product thereof may have adhesion to aluminum of 1 N/mm 2 or less.
- the upper limit of the adhesive strength of the curable composition or the cured product to aluminum is 0.1 N/mm 2 , 0.099 N/mm 2 , 0.098 N/mm 2 , 0.097 N/mm 2 , 0.096 N/mm 2 , 0.095 N /mm 2 , 0.094 N/mm 2 , 0.093 N/mm 2 , 0.092 N/mm 2 , 0.091 N/mm 2 or 0.09 N/mm 2 .
- the curable composition or the curable product may have adhesive strength to aluminum that is less than or equal to any one of the upper limits described above.
- the lower limit of the adhesive strength to aluminum is not particularly limited.
- the adhesive strength to aluminum may be 0 N/mm 2 or more or 0 N/mm 2 or more.
- the curable composition may be a curable composition having substantially no adhesion to aluminum or a curable composition capable of forming a substantially unmeasured cured product. Therefore, the adhesion to aluminum may be 0 N/mm 2 or more or 0 N/mm 2 or more , and may be less than or equal to any one of the upper limits described above.
- the adhesive strength of the curable composition or its cured product to aluminum can be measured in the manner described in Examples herein.
- the curable composition or a cured product thereof may have adhesive strength to polyester of 100 gf/cm or less.
- the upper limit of the adhesive strength of the curable composition or the cured product to polyester is 99.9 gf/cm, 99.8 gf/cm, 99.7 gf/cm, 99.6 gf/cm, 99.5 gf/cm, 99.4 gf/cm, 99.3 gf in other examples.
- the adhesive strength of the curable composition or cured product thereof to polyester may be equal to or less than any one of the upper limits described above.
- the lower limit of the adhesive strength to the polyester is not particularly limited.
- the lower limit of the adhesive strength of the curable composition or the cured product to the polyester is 0 gf/cm, 2 gf/cm, 4 gf/cm, 6 gf/cm, 8 gf/cm, 10 gf/cm, 12 gf/cm, 14 gf/cm, 16 gf/cm, 18 gf/cm or 20 gf/cm.
- the curable composition or a cured product thereof may exhibit substantially no adhesive strength to polyester.
- the adhesive force of the curable composition or a cured product thereof to polyester may be in a range between any lower limit of any one of the lower limits described above and any one upper limit of any one of the upper limits described above.
- the adhesive strength of the curable composition or its cured product to polyester can be measured in the manner described in Examples herein.
- a curable composition or a cured product thereof according to an example of the present application may exhibit excellent thermal conductivity.
- the lower limit of the thermal conductivity of the curable composition or its cured product is 2.0 W/mK, 2.1 W/mK, 2.2 W/mK, 2.3 W/mK, 2.4 W/mK, 2.5 W/mK, 2.6 W/mK. It may be about mK, 2.7 W/mK, 2.8 W/mK, 2.9 W/mK, or 3 W/mK.
- the thermal conductivity may be greater than or equal to any one of the lower limits described above. There is no particular limitation on the upper limit of the thermal conductivity.
- the upper limit of the thermal conductivity of the curable composition or a cured product thereof is 10 W/mK, 9 W/mK, 8 W/mK, 7 W/mK, 6 W/mK, 5 W/mK or 4 W It may be around /mK.
- the thermal conductivity may be in a range between any one of the lower limits described above and any one of the upper limits described above.
- the thermal conductivity of such a curable composition or a cured product thereof can be measured by the method disclosed in the Examples below.
- a curable composition or a cured product thereof according to an example of the present application may also exhibit appropriate hardness. For example, if the hardness of the curable composition or its cured product is too high, problems may occur due to excessive brittleness. In addition, through the adjustment of the hardness of the curable composition or its cured product, it is possible to secure impact resistance and vibration resistance, and to secure the durability of the product according to the application purpose.
- the upper limit of the hardness of the curable composition or its cured product in Shore OO type may be 100, 98, 96, 94, 92 or 90.
- the Shore OO type hardness may be less than or equal to any one of the upper limits described above.
- the lower limit of the Shore OO type hardness may be 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75 or 80.
- the Shore OO type hardness may be greater than or equal to any one of the lower limits described above.
- the Shore OO type hardness may be in a range between any one of the upper limits described above and any one of the lower limits described above. The hardness of such a curable composition or a cured product thereof can be measured by the method disclosed in Examples below.
- a curable composition or a cured product thereof according to an example of the present application may also exhibit appropriate flexibility.
- applications can be greatly expanded by adjusting the flexibility of the curable composition or its cured product to a desired level.
- the upper limit of the radius of curvature of the curable composition or its cured product is 20 mm, 19 mm, 18 mm, 17 mm, 16 mm, 15 mm, 14 mm, 13 mm, 12 mm, 11 mm, 10 mm or 9 mm. It can be on the order of mm.
- the radius of curvature may be equal to or less than any one of the upper limits described above.
- the lower limit of the radius of curvature may be, for example, about 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, or 7 mm.
- the radius of curvature may be greater than or equal to any one of the lower limits described above.
- the radius of curvature may be within a range between any one of the upper limits described above and any one of the lower limits described above.
- the radius of curvature of such a curable composition or a cured product thereof can be measured by the method disclosed in Examples below.
- a curable composition or a cured product thereof according to an example of the present application may be insulating. That is, the curable composition may have insulating properties and/or form a cured product having insulating properties.
- the curable composition or its cured product has a lower limit of the dielectric breakdown voltage measured in accordance with ASTM D149, 3 kV/mm, 5 kV/mm, 7 kV/mm, 10 kV/mm, 15 kV/mm Or it may be on the order of 20 kV/mm.
- the breakdown voltage may be greater than or equal to any one of the lower limits described above. The higher the value of the dielectric breakdown voltage, the better the insulation.
- the upper limit is not particularly limited, but considering the composition of the curable composition, the upper limit of the dielectric breakdown voltage is 50 kV/mm, 45 kV/mm. mm, 40 kV/mm, 35 kV/mm or 30 kV/mm.
- the dielectric breakdown voltage may be equal to or less than any one of the upper limits described above.
- the breakdown voltage as described above can be controlled by adjusting the insulating properties of the curable composition, and can be achieved, for example, by applying an insulating filler to the composition. In general, among fillers, a ceramic filler is known as a component capable of securing insulation.
- the cured product of the curable composition can secure electrical insulation as described above, stability can be secured while maintaining performance with respect to various materials, for example, a case or a battery cell included in a battery module.
- a curable composition or a cured product thereof may have flame retardancy.
- the curable composition or a cured product thereof may exhibit a V-0 grade in the UL 94 V Test (Vertical Burning Test). Accordingly, it is possible to secure stability against fire and other accidents that are of concern depending on the application of the curable composition.
- in order to secure the flame retardancy it was generally secured through a flame retardant containing a halogen element, a flame retardant containing a phosphorus element, and a combination thereof.
- the curable composition or a cured product thereof substantially does not contain a halogen element-containing flame retardant and a phosphorus (P) element-containing flame retardant through an appropriate combination of a polyol component and a filler component to be described later, UL 94 V
- the result measured according to the test may be a V-0 grade.
- the combined content of halogen and phosphorus may be 0.3% by weight or less based on the total content of the curable composition or cured product.
- the upper limit of the combined content of the halogen and phosphorus elements is 0.29 wt%, 0.28 wt%, 0.27 wt%, 0.26 wt%, 0.25 wt%, 0.24 wt%, 0.23 wt%, 0.22 wt% based on the total content of the curable composition or cured product. %, 0.21% or 0.2% by weight.
- the combined content of the halogen and phosphorus elements may be equal to or less than any one of the upper limits described above.
- the lower limit of the combined content of the halogen and phosphorus elements is not particularly limited, but may be 0% by weight (not included) or greater than 0% by weight based on the total content of the curable composition or cured product. It can be confirmed that the curable composition or a cured product thereof does not substantially include a flame retardant containing a halogen element and a flame retardant containing a phosphorus element through the sum of halogen and phosphorus elements. The sum of the halogen and phosphorus elements may be greater than or equal to any one of the lower limits described above.
- the combined content of the halogen and phosphorus elements may be within a range between any one of the upper limits described above and any one of the lower limits described above.
- the halogen element content, the phosphorus content, and the combined content of the halogen element and the phosphorus element in the curable composition or the cured product according to an example of the present application may be measured through an ICP analysis method.
- the ICP analysis method used in the present application is ICP-OES (Inductively Coupled Plasma-Optical Emission Spectrometer), ICP-AES (Inductively Coupled Plasma-Atomic Emission Spectrometer), ICP-MS (Inductively Coupled Plasma Mass Spectrometer) or ICP-AAS (Inductively Coupled Plasma-Atomic Absorption Spectrometer), etc.
- the analysis can be preferably performed using ICP-OES, specifically in the manner described in the Examples of the present specification.
- ICP-OES specifically in the manner described in the Examples of the present specification.
- the content of the halogen element, the content of the elemental phosphorus, and the combined content of the elemental halogen and the elemental phosphorus may be measured by the method disclosed in Examples to be described later.
- the halogen element content may be 0.3% by weight or less based on the total content of the curable composition or cured product.
- the upper limit of the content of the halogen element is 0.29 wt%, 0.28 wt%, 0.27 wt%, 0.26 wt%, 0.25 wt%, 0.24 wt%, 0.23 wt%, 0.22 wt%, 0.21 wt% based on the total content of the curable composition or cured product. weight percent or 0.2 weight percent.
- the content of the halogen element may be equal to or less than any one of the upper limits described above.
- the lower limit of the content of the halogen element is not particularly limited, but may be 0% by weight (not included) or greater than 0% by weight based on the total content of the curable composition or cured product. It can be confirmed that the curable composition or a cured product thereof does not substantially include a flame retardant containing a halogen element through the content of the halogen element.
- the halogen content may be greater than or equal to any one of the lower limits described above.
- the halogen content may be within a range between any one of the upper limits described above and any one of the lower limits described above.
- the content of elemental phosphorus may be 0.3% by weight or less based on the total content of the curable composition or cured product.
- the upper limit of the content of elemental phosphorus is 0.29 wt%, 0.28 wt%, 0.27 wt%, 0.26 wt%, 0.25 wt%, 0.24 wt%, 0.23 wt%, 0.22 wt%, 0.21 wt% based on the total content of the curable composition or cured product. weight percent or 0.2 weight percent.
- the content of elemental phosphorus may be equal to or less than any one of the upper limits described above.
- the lower limit of the content of elemental phosphorus is not particularly limited, but may be 0% by weight (not included) or greater than 0% by weight based on the total content of the curable composition or cured product. It can be confirmed that the curable composition or a cured product thereof does not substantially include a flame retardant containing elemental phosphorus through the content of elemental phosphorus.
- the phosphorus content may be greater than or equal to any one of the lower limits described above.
- the phosphorus content may be within a range between any one of the upper limits described above and any one of the lower limits described above.
- the sum of the flame retardant containing a halogen element and the flame retardant containing a phosphorus element may be 1% by weight or less based on the total content of the curable composition or the cured material.
- the upper limit of the sum of the content of the halogen element-containing flame retardant and the phosphorus element-containing flame retardant is 0.9% by weight, 0.8% by weight, 0.7% by weight, 0.6% by weight, 0.5% by weight, 0.4% by weight based on the total content of the curable composition or cured product. %, 0.3%, 0.2%, 0.1%, 0.01% or 0.001%.
- the sum of the halogen element-containing flame retardant and the phosphorus element-containing flame retardant may be equal to or less than any one of the upper limits described above.
- the lower limit of the sum of the halogen element-containing flame retardant and the phosphorus element-containing flame retardant is not particularly limited, but may be 0% by weight (not included) or greater than 0% by weight based on the total content of the curable composition or cured product. .
- the sum of the halogen element-containing flame retardant and the phosphorus element-containing flame retardant may be greater than or equal to any one of the lower limits described above.
- the sum of the content of the halogen element-containing flame retardant and the phosphorus element-containing flame retardant may be within a range between any one of the upper limits described above and any one of the lower limits described above.
- the content of the flame retardant containing a halogen element may be 1% by weight or less based on the total content of the curable composition or cured product.
- the upper limit of the content of the flame retardant containing the halogen element is 0.9% by weight, 0.8% by weight, 0.7% by weight, 0.6% by weight, 0.5% by weight, 0.4% by weight, 0.3% by weight, 0.2% by weight based on the total content of the curable composition or cured product. %, 0.1%, 0.01% or 0.001%.
- the content of the flame retardant containing the halogen element may be equal to or less than any one of the upper limits described above.
- the lower limit of the content of the halogen element-containing flame retardant is not particularly limited, but may be 0% by weight (not included) or greater than 0% by weight based on the total content of the curable composition or cured product.
- the content of the flame retardant containing the halogen element may be greater than or equal to any one of the lower limits described above.
- the content of the halogen element-containing flame retardant may be in a range between any one of the upper limits described above and any one of the lower limits described above.
- the content of the flame retardant containing elemental phosphorus may be 1 wt% or less based on the total content of the curable composition or cured product.
- the upper limit of the content of the flame retardant containing elemental phosphorus is 0.9% by weight, 0.8% by weight, 0.7% by weight, 0.6% by weight, 0.5% by weight, 0.4% by weight, 0.3% by weight, 0.2% by weight based on the total content of the curable composition or cured product. %, 0.1%, 0.01% or 0.001%.
- the content of the flame retardant containing elemental phosphorus may be equal to or less than any one of the upper limits described above.
- the lower limit of the content of the flame retardant containing elemental phosphorus is not particularly limited, but may be 0% by weight (not included) or greater than 0% by weight based on the total content of the curable composition or cured product.
- the content of the flame retardant containing elemental phosphorus may be greater than or equal to any one of the lower limits described above.
- the content of the flame retardant containing elemental phosphorus may be within a range between any one of the upper limits described above and any one of the lower limits described above.
- the curable composition or a cured product thereof may have a specific gravity of 3 or less.
- the upper limit of the specific gravity may be 2.99, 2.98, 2.97 or 2.96.
- the upper limit of the specific gravity may be equal to or less than any one of the upper limits described above.
- the specific gravity as described above can be achieved by applying a filler having a low specific gravity and/or applying a surface-treated filler.
- the lower limit of the specific gravity is not particularly limited because the lower the specific gravity, the more advantageous it is to reduce the weight of the applied product.
- the specific gravity may be about 1.5 or more or 2 or more.
- the specific gravity may be greater than or equal to any one of the lower limits described above.
- the specific gravity may be within a range between any one of the upper limits described above and any one of the lower limits described above.
- the curable composition or cured product thereof can be used as a thermal interface material, etc., and, for example, rapidly dissipates heat generated when rapidly charging a battery to reduce the risk of fire or the like. can make it
- a high specific gravity thermally conductive filler is generally applied in excess.
- the weight of the battery increases, and eventually the weight of the product to which the battery is applied also increases.
- fuel efficiency of the vehicle may be disadvantageous. Therefore, in order for the curable composition or a cured product thereof to have a low specific gravity, the content of the filler having a high specific gravity should be reduced.
- the curable composition or cured product thereof according to an example of the present application may simultaneously secure low specific gravity characteristics and heat dissipation characteristics even in the above trade-off relationship through an appropriate combination of filler components described later.
- the curable composition according to an example of the present application may have a low shrinkage rate during or after curing. Through this, it is possible to prevent peeling or generation of gaps that may occur during the application process.
- the shrinkage rate may be appropriately adjusted within a range capable of exhibiting the above-described effect, and may be, for example, less than 5%, less than 3%, or less than about 1%. Since the shrinkage rate is more advantageous as the value is lower, the lower limit is not particularly limited.
- a curable composition or a cured product thereof according to an example of the present application may have a low coefficient of thermal expansion (CTE). Through this, it is possible to prevent peeling or generation of voids that may occur during application or use.
- the thermal expansion coefficient may be appropriately adjusted within a range capable of exhibiting the above-described effect, for example, less than 300 ppm/K, less than 250 ppm/K, less than 200 ppm/K, less than 150 ppm/K, or about 100 ppm/K. It may be less than ppm/K.
- the lower limit of the coefficient of thermal expansion is not particularly limited, since the lower the value, the more advantageous the coefficient of thermal expansion is.
- the curable composition or cured product thereof according to an example of the present application may also have a 5% weight loss temperature in thermogravimetric analysis (TGA) of 400° C. or more, or a residual amount of 800° C. of 70% by weight or more. there is. Due to these properties, stability at high temperatures can be further improved.
- TGA thermogravimetric analysis
- the amount remaining at 800° C. may be about 75% by weight or more, about 80% by weight or more, about 85% by weight or more, or about 90% by weight or more in another example.
- the amount remaining at 800° C. may be about 99% by weight or less in another example.
- thermogravimetric analysis may measure the temperature within the range of 25 °C to 800 °C at a heating rate of 20 °C min under a nitrogen (N 2 ) atmosphere at 60 cm 3 /min.
- the thermogravimetric analysis (TGA) result can also be achieved by adjusting the composition of the curable composition.
- the remaining amount at 800°C is usually influenced by the type or ratio of the filler contained in the curable composition, and when an excessive amount of filler is included, the remaining amount increases.
- the curable composition according to an example of the present application may include a polyol component.
- the polyol component contains 55% by weight or more, 60% by weight or more, 65% by weight or more, 70% by weight or more, 75% by weight or more, 80% by weight or more, 85% by weight or more, 90% by weight or more, 95% by weight or more, based on the total weight of the polyol. It may include at least 99% by weight, or at least 100% by weight.
- Polyol a term used in this application, may refer to a compound having a lower limit of the number of hydroxyl groups of about 2 or 3 per molecule.
- the upper limit of the number of hydroxyl groups of the polyol is not particularly limited, but may be about 10, 9, 8, 7, 6, 5, 4 or 3 per molecule.
- the number of hydroxyl groups of the polyol may be less than or equal to any one of the upper limits described above.
- the number of hydroxy groups included in the polyol may be within the range of any one of the lower limits described above and any one of the upper limits described above.
- the number of hydroxy groups included in the polyol can be confirmed through 1 H NMR, and the number of hydroxy groups can be confirmed based on a peak present in the 3 to 4 ppm region in 1 H NMR.
- the polyol may be called according to the number of hydroxyl groups, and may be called, for example, a bifunctional polyol (having two hydroxyl groups) and the like.
- the curable composition according to an example of the present application may include a polyol component within a range of 1 part by weight or more to 80 parts by weight or less based on 100 parts by weight of a filler component described later.
- the upper limit of the content of the polyol component may be about 60 parts by weight, 50 parts by weight, 40 parts by weight, 30 parts by weight, 20 parts by weight or 15 parts by weight based on 100 parts by weight of the filler component
- the lower limit of the content of the polyol component is It may be about 2 parts by weight, 3 parts by weight, 4 parts by weight, 5 parts by weight, 6 parts by weight, 7 parts by weight, 8 parts by weight, 9 parts by weight, or 10 parts by weight based on 100 parts by weight of the filler component.
- the content of the polyol component is equal to or more than any one of the lower limits described above, less than or equal to any one upper limit of the above-described upper limits, or any one of the lower limits and any one of the upper limits described above. It may be within the range between upper limits.
- the polyol component may include a first polyol that is a bifunctional polyol and a second polyol that is at least trifunctional.
- the curable composition can secure viscosity and thixotropy suitable for the process by simultaneously including the first and second polyols as polyol components, and can secure excellent curability by more densely curing during curing, and can be applied to a specific adherend. It is possible to form a cured product capable of exhibiting low adhesive strength or low adhesive strength.
- the polyol component is not particularly limited as long as it is used in the art, but, for example, polyester polyol, polyether polyol, polycarbonate polyol, polyester depending on the skeleton structure included.
- the first or second polyol of the polyol component may be an oil-modified polyol or a non-oil-modified polyol.
- oil-modified polyol used in this application refers to a polyol containing a straight-chain or branched-chain hydrocarbon group having 3 or more carbon atoms at the terminal. Accordingly, a polyol that does not include a straight-chain or branched-chain hydrocarbon group having 3 or more carbon atoms at its terminal may be referred to as a non-oil-modified polyol in this application. That is, the first or second polyol of the polyol component may include a branched hydrocarbon chain having 3 or more carbon atoms at its terminal. Whether or not the first or second polyol includes the hydrocarbon group can be confirmed through 1 H NMR.
- the existence of the hydrocarbon group and number can be checked.
- the oil-modified polyol it is formed as a polyurethane material, and while minimizing the amount of adhesion-reducing components such as plasticizers, it is possible to secure low adhesion to a specific material and have excellent compoundability.
- the lower limit of the number of carbon atoms of the straight or branched chain hydrocarbon group included in the terminal of the oil-modified polyol is 4, 5, 6, 7, 8, 9, 10, 11, 12 , may be as many as 13, 14, 15, 16 or 17.
- the number of carbon atoms may be greater than or equal to any one of the lower limits described above.
- the upper limit of the number of carbon atoms is 50, 49, 48, 47, 46, 45, 44, 43, 42, 41, 40, 39, 38, 37 , 36, 35, 34, 33, 32, 31, 30, 29, 28, 27, 26, 25, 24, 23, 22, 21, 20 19, 18, 17, 16, 15, 14, 13, 12, 11, 10, 9 or 8.
- the number of carbon atoms may be equal to or less than any one of the upper limits described above.
- the number of carbon atoms may be within a range between any one of the lower limits described above and any one of the upper limits described above.
- the straight-chain or branched-chain hydrocarbon group may or may not contain a double bond.
- the double bond may be a conjugated double bond or a cis double bond.
- the hydrocarbon group may be connected to the polyol compound via a carbonyl group or a carbonyloxy group, in which case the hydrocarbon group may be an alkylcarbonyl group, an alkenylcarbonyl group, an alkynylcarbonyl group, an alkylcarbonyloxy group, an alkenyl group. It may be a carbonyloxy group or an alkynylcarbonyloxy group.
- the number of carbon atoms of the alkyl group, alkenyl group or alkynyl group is more than any one of the lower limits of the number of carbon atoms of the above-described straight-chain or branched-chain hydrocarbon group, the above-described straight-chain or branched-chain hydrocarbon group Any one upper limit of the upper limit of the number of carbon atoms or lower limit of any one of the lower limit of the number of carbon atoms of the straight-chain or branched-chain hydrocarbon group described above and the carbon atoms of the linear or branched-chain hydrocarbon group described above It may be within a range between any one of the upper limits of the number.
- the alkyl group, alkenyl group, or alkynyl group may be straight-chain or branched-chain, and may be optionally substituted with one substituent.
- a substituent there is no particular limitation on the type of the substituent, and for example, a halogen atom such as fluorine (F) may be exemplified as the substituent.
- the hydrocarbon group may be included in a substituent represented by Formula 1 below.
- R is a straight-chain or branched-chain hydrocarbon group.
- hydrocarbon group represented by R in Formula 1 Specific types of the hydrocarbon group represented by R in Formula 1 are as described above. Therefore, the information on the number, type, type, and substituent of carbon atoms of the above-described hydrocarbon group may be applied in the same manner as above.
- the number of hydrocarbon groups included in the oil-modified polyol is not particularly limited.
- the lower limit of the number of hydrocarbon groups included in the oil-modified polyol may be 1 or 2 per molecule of the compound.
- the upper limit of the number of hydrocarbon groups included in the oil-modified polyol may be about 10, 9, 8, 7, 6, 5, 4, 3 or 2 per molecule of the compound.
- the number of hydrocarbon groups is equal to or greater than the lower limit of any one of the lower limits described above, lower than or equal to the upper limit of any one of the upper limits described above, or lower limit of any one of the lower limits and upper limit described above. It may be within a range between upper limits.
- the oil-modified polyol may have various forms as long as it includes the hydroxy group and the hydrocarbon group.
- the oil-modified polyol may be a compound in which at least some of the hydrogen atoms of a hydrocarbon compound such as an alkane, alkene or alkyne are substituted with the hydroxy group and/or the hydrocarbon group.
- a hydrocarbon compound such as an alkane, alkene or alkyne
- the number of carbon atoms in the hydrocarbon compound such as the alkane, alkene or alkyne may be, for example, 1 to 20, 1 to 16, 1 to 8, or 4 to 6.
- Hydrocarbon compounds such as alkanes, alkenes or alkynes may be straight chain, branched chain or cyclic.
- the hydroxyl group and/or hydrocarbon group may be substituted on the same carbon atom in the alkane, alkene or alkyne, or may be substituted on a different carbon atom.
- the oil-modified polyol may have a polyester skeleton or a polyether skeleton.
- the oil-modified polyol may be an oligomeric compound or a polymeric compound.
- the oil-modified polyol having a polyester skeleton is a so-called polyester polyol, and may be a polyol having a structure in which the hydrocarbon group is connected to the polyester polyol.
- oil-modified polyol having a polyether skeleton is a so-called polyether polyol, and may be a polyol having a structure in which the hydrocarbon group is connected to such a polyether polyol.
- the polyester skeleton may be a so-called polycaprolactone skeleton
- the polyether skeleton may be a so-called polyalkylene skeleton
- the polyester skeleton may be a skeleton having a repeating unit represented by Formula 2 below.
- X 1 and X 2 are each independently a single bond or an oxygen atom
- L 1 may be an alkylene group or an alkylidene group
- n is an arbitrary number.
- single bond means a case where no atom exists at the corresponding site.
- the alkylene group may be, in one example, an alkylene group having 2 to 20 carbon atoms, 4 to 20 carbon atoms, 4 to 16 carbon atoms, 4 to 12 carbon atoms, or 4 to 8 carbon atoms, which may be linear or branched. .
- the alkylene group may be, in one example, an alkylene group having 1 to 20 carbon atoms, 4 to 20 carbon atoms, 4 to 16 carbon atoms, 4 to 12 carbon atoms, or 4 to 8 carbon atoms, which may be linear or branched. .
- both the alkylene group and the alkylidene group refer to a divalent substituent formed by leaving two hydrogen atoms in an alkane.
- An alkylene group is a divalent substituent formed by leaving the two hydrogen atoms from another carbon atom of the alkane
- an alkylene group is a divalent substituent formed by leaving the two hydrogen atoms from one carbon atom of the alkane. do.
- the polyester skeleton may be a polycaprolactone skeleton.
- L 1 of Chemical Formula 2 may be a C5 linear alkylene group or a C5 linear alkylidene group.
- n is an arbitrary number representing the number of repeating units.
- the lower limit of n may be, for example, about 1, 2, 3, 4, or 4.5
- the upper limit of n may be about 25, 20, 15, 10, or 5.
- n is equal to or greater than any one of the lower limits described above, less than or equal to any one upper limit among the above-described upper limits, or any one lower limit among the above-described lower limits and any one upper limit among the above-described upper limits It may be within the range between.
- the skeleton of Formula 2 may be a so-called carboxylic acid polyol skeleton or a caprolactone polyol skeleton.
- a backbone may be formed in a known manner, and for example, the backbone of the carboxylic acid polyol may be formed by reacting a component including a carboxylic acid and a polyol (eg, diol or triol), and capro
- the skeleton of the lactone polyol can be formed by reacting components including caprolactone and polyol (eg, diol or triol).
- the carboxylic acid may be a dicarboxylic acid.
- a hydroxyl group or the aforementioned hydrocarbon group may be present at the end of the skeleton of Chemical Formula 2.
- the skeleton of Formula 2 may be represented by Formula 3 below.
- X 1 , X 2 , L 1 and n are as defined in Formula 2, and R 1 may be a hydroxyl group or a substituent represented by Formula 4 below.
- X 3 is a single bond or an oxygen atom, and R is the same as R in Formula 1 above.
- the lower limit of the number of skeletons represented by Formula 2 or 3 may be 1 or 2, and the upper limit may be 10, 9, 8, 7, 6, 5, 4 It can be as many as 1, 3 or 2.
- the number of the backbones is equal to or greater than any one of the lower limits described above, less than or equal to any one upper limit among the above-described upper limits, or any one of the lower limit of any one of the above-described lower limits and any one of the upper limits described above. It may be within the range between the upper limits.
- the oil-modified polyol having the polyester backbone may have a linear or branched chain structure.
- the straight chain structure is a structure in which a main chain including a skeleton of Formula 2 or 3 is present and no other polymer chain is connected to the main chain
- a branched chain structure is a structure in which a main chain including a skeleton of Formula 2 or 3 is present.
- a side chain a chain including a backbone of Formula 2 or 3 may be bonded.
- the number of chains comprising the backbone of Formula 2 or 3 connected as side chains in the branched chain structure above is, for example, 1 to 5, 1 to 4, 1 to 3, 1 to 2 or one.
- the oil-modified polyol having a polyester skeleton may be a compound in which at least some of the hydrogen atoms of a hydrocarbon compound such as an alkane, alkene or alkyne are substituted with the hydroxyl group and/or the skeleton of Formula 3.
- the number of carbon atoms in the hydrocarbon compound such as the alkane, alkene or alkyne may be, for example, 1 to 20, 1 to 16, 1 to 8, or 4 to 6.
- Hydrocarbon compounds such as alkanes, alkenes or alkynes may be straight chain, branched chain or cyclic.
- the hydroxyl group and/or the skeleton of Formula 3 may be substituted on the same carbon atom in the alkane, alkene or alkyne, or may be substituted on a different carbon atom.
- the polyether skeleton may be a skeleton having a repeating unit represented by Formula 5 below.
- X 4 and X 5 are each independently a single bond or an oxygen atom
- L 2 may be an alkylene group or an alkylidene group
- m is an arbitrary number.
- the alkylene group may be, in one example, an alkylene group having 2 to 20 carbon atoms, 2 to 16 carbon atoms, 2 to 12 carbon atoms, 2 to 8 carbon atoms, or 2 to 4 carbon atoms, which may be linear or branched. .
- the alkylene group may be, in one example, an alkylene group having 1 to 20 carbon atoms, 1 to 16 carbon atoms, 1 to 12 carbon atoms, 1 to 8 carbon atoms, or 1 to 4 carbon atoms, which may be linear or branched. .
- alkylene group and the alkylidene group is as described above.
- m is an arbitrary number representing the number of repeating units, and may be, for example, a number within the range of 1 to 25.
- the hydroxyl group or the aforementioned hydrocarbon group may be present at the end of the skeleton of Formula 5.
- the skeleton of Formula 5 may be represented by Formula 6 below.
- X 4 , X 5 , L 2 and m are as defined in Formula 5, and R 2 may be a hydroxy group or a substituent represented by Formula 7 below.
- X 6 is a single bond or an oxygen atom, and R is the same as R in Formula 1 above.
- the oil-modified polyol may include one or more or two or more skeletons of Formula 5 or 6. 10 or less, 9 or less, 8 or less, 7 or less, 6 or less, 5 or less, 4 or less, 3 or less, or 2 or less skeletons of Formula 5 or 6 may be included in the polyol compound. there is.
- the oil-modified polyol having a polyether backbone may have a linear or branched chain structure.
- the straight chain structure is a structure in which a main chain including a skeleton of Formula 5 or 6 is present and no other polymer chain is connected to the main chain
- a branched chain structure is a structure in which a main chain including a skeleton of Formula 5 or 6 is present.
- a side chain a chain including a backbone of Formula 5 or 6 may be bonded.
- the number of chains containing the backbone of Formula 5 or 6 connected as side chains in the branched chain structure above is, for example, 1 to 5, 1 to 4, 1 to 3, 1 to 2 or one.
- the oil-modified polyol having a polyether backbone may be a compound in which at least some hydrogen atoms of a hydrocarbon compound such as an alkane, alkene or alkyne are substituted with a hydroxyl group and/or a backbone of Formula 5.
- the number of carbon atoms in the hydrocarbon compound such as the alkane, alkene or alkyne may be, for example, 1 to 20, 1 to 16, 1 to 8, or 4 to 6.
- Hydrocarbon compounds such as alkanes, alkenes or alkynes may be straight chain, branched chain or cyclic.
- the hydroxy group and/or the skeleton of Formula 5 may be substituted on the same carbon atom in the alkane, alkene or alkyne, or may be substituted on a different carbon atom.
- the oil-modified polyol described above is an oligomeric or polymeric compound
- the compound may have an appropriate level of molecular weight.
- the lower limit of the weight average molecular weight of the oligomeric or polymeric oil-modified polyol is 100 g/mol, 200 g/mol, 300 g/mol, 400 g/mol, 500 g/mol, 600 g/mol or 700 g/mol
- the upper limit is 5,000 g/mol, 4,500 g/mol, 4,000 g/mol, 3,500 g/mol, 3,000 g/mol, 2,500 g/mol, 2,000 g/mol, 1,500 g/mol , 1,000 g/mol or 900 g/mol.
- the weight average molecular weight is greater than or equal to any one of the lower limits described above, less than or equal to any one of the upper limits described above, or any one of the lower limit and any one of the upper limit described above. It may be within the range between upper limits.
- oil-modified polyol By applying the oil-modified polyol as described above, desired physical properties can be more effectively secured. In addition, applying the above-described oil-modified polyol as the first polyol can effectively secure more desired physical properties.
- the oil-modified polyol may be synthesized through a known synthesis method. That is, the polyols may be prepared by reacting a compound capable of introducing the hydrocarbon group corresponding to the oil-modified portion with a known polyol or alcohol compound.
- the polyol is as defined in the present application, and the alcohol compound means a compound containing one hydroxyl group per molecule.
- saturated or unsaturated fatty acids may be exemplified, and specifically, butyric acid, caproic acid, 2-ethylhexanoic acid , caprylic acid, isononanoic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid Acid (stearic acid), linoleic acid (linoleic acid) or oleic acid (oleic acid) may be exemplified, but is not limited thereto.
- polyol or alcohol compound reacting with the saturated or unsaturated fatty acid there is no particular limitation on the type of polyol or alcohol compound reacting with the saturated or unsaturated fatty acid, and for example, an appropriate type of general polyol described later may be applied, but is not limited thereto.
- the non-oil-modified polyols can take a variety of forms.
- the non-oil-modified polyol may be a polyester polyol.
- polyester polyols so-called carboxylic acid polyols or caprolactone polyols can be used, for example.
- the polyester polyol may be a skeleton having a repeating unit represented by Formula 8 below.
- X 7 and X 8 are each independently a single bond or an oxygen atom
- L 3 may be an alkylene group or an alkylidene group
- p is an arbitrary number.
- the alkylene group may be, in one example, an alkylene group having 1 to 20 carbon atoms, 4 to 20 carbon atoms, 4 to 16 carbon atoms, 4 to 12 carbon atoms, or 4 to 8 carbon atoms, which may be linear or branched. .
- the alkylene group may be, in one example, an alkylene group having 2 to 20 carbon atoms, 4 to 20 carbon atoms, 4 to 16 carbon atoms, 4 to 12 carbon atoms, or 4 to 8 carbon atoms, which may be linear or branched. .
- L 3 in Chemical Formula 8 may be a straight-chain alkylene group having 5 carbon atoms.
- p is an arbitrary number representing the number of repeating units, and may be, for example, a number within the range of 1 to 25.
- the polyester polyol having the skeleton of Formula 8 may be a so-called carboxylic acid polyol or caprolactone polyol.
- a polyol compound can be formed by a known method.
- the carboxylic acid polyol can be formed by reacting a component including a carboxylic acid and a polyol (eg, diol or triol), and caprolactone Polyols can be formed by reacting components including caprolactone and polyols (eg, diols or triols).
- the carboxylic acid may be a dicarboxylic acid.
- the hydroxyl group may be present at the end of the skeleton of Chemical Formula 8 or at another site of the polyester polyol.
- the lower limit of the number of backbones may be 1 or 2, and the upper limit may be 10, 9, 8, 7, or 6. It could be 1, 5, 4, 3, 2 or 1.
- the number of the backbones is equal to or greater than any one of the lower limits described above, less than or equal to any one upper limit among the above-described upper limits, or any one of the lower limit of any one of the above-described lower limits and any one of the upper limits described above. It may be within the range between upper limits.
- the non-oil-modified polyol having the polyester backbone may have a straight chain or branched chain structure.
- the straight chain structure is a structure in which a main chain including the backbone of Formula 8 is present and no other polymer chain is connected to the main chain
- the branched chain structure is a structure in which a main chain including the backbone of Formula 8 is a side chain. It may be a form in which chains including the skeleton of Formula 8 are bonded.
- the number of chains containing the backbone of Formula 8 connected as side chains in the branched chain structure is, for example, 1 to 5, 1 to 4, 1 to 3, 1 to 2, or 1 can be a dog
- the non-oil-modified polyol is, in another example, a polycaprolactone polyol unit or an alkane diol unit; A polyol having a polyol unit and a dicarboxylic acid unit may also be used.
- Such polyols include the above polycaprolactone polyols or alkane diols; It may be a mixture of a polyol and a dicarboxylic acid, or a reaction product thereof. That is, the polycaprolactone polyol unit, alkane diol unit, polyol unit, and dicarboxylic acid unit may be units derived from polycaprolactone polyol, alkane diol polyol, and dicarboxylic acid, respectively.
- the alkane diol is 3-methyl-1,5-pentanediol (3-methyl-1,5-pentanediol), 1,9-nonanediol (1,9-nonanediol) or 1,6-hexanediol
- Diol compounds having 1 to 20 carbon atoms, 4 to 20 carbon atoms, 4 to 16 carbon atoms, or 4 to 12 carbon atoms, such as 1,6-hexanediol may be exemplified.
- the polyol unit is 3 to 10, 3 to 9, 3 to 8, 3 to 7, 3 to 6, 3 to 5, or 3, such as trimethylolpropane.
- Alkanes having 1 to 20 carbon atoms, 4 to 20 carbon atoms, 4 to 16 carbon atoms or 4 to 12 carbon atoms substituted with 4 to 4 hydroxyl groups may be exemplified.
- dicarboxylic acid adipic acid, terephthalic acid, isophthalic acid, or sebacic acid may be exemplified.
- Polyol compounds of this kind are, for example, Kuraray's P-510, P-1010, P-2010, P-3010, P-4010, P-5010, P-6010, F-510, F-1010, F- 2010, F-3010, P-2011, P-520, P-2020, P-1012, P-2012, P-630, P-2030, P-2050 or N-2010.
- the compound may have an appropriate level of molecular weight.
- the lower limit of the weight average molecular weight of the oligomeric or polymeric non-oil-modified polyol is 100 g/mol, 200 g/mol, 300 g/mol, 400 g/mol, 500 g/mol, 600 g/mol. mol or 700 g/mol, the upper limit being 5,000 g/mol, 4,500 g/mol, 4,000 g/mol, 3,500 g/mol, 3,000 g/mol, 2,500 g/mol, 2,000 g/mol, 1,500 g /mol, 1,000 g/mol or 900 g/mol.
- the weight average molecular weight is greater than or equal to any one of the lower limits described above, less than or equal to any one of the upper limits described above, or any one of the lower limit and any one of the upper limit described above. It may be within the range between the upper limits.
- non-oil-modified polyol By applying the non-oil-modified polyol as described above, desired physical properties can be more effectively secured. In addition, it is possible to effectively secure more desired physical properties by applying the aforementioned oil-modified polyol as the first polyol and applying the aforementioned non-oil-modified polyol as the second polyol.
- the first or second polyol of the polyol component may be a polyester polyol having a polyester skeleton.
- the polyester polyol may be an oil-modified polyol or a non-oil-modified polyol.
- the polyol component includes a first polyol that is a polyester oil-modified polyol having a polyester skeleton and a second polyol that is a non-oil-modified polyester polyol having a polyester skeleton, thereby effectively securing more desired physical properties.
- the first polyol of the polyol component may be an oligomeric or polymeric compound and may have an appropriate level of molecular weight.
- the lower limit of the weight average molecular weight of the first polyol may be about 100 g/mol, 200 g/mol, 300 g/mol, 400 g/mol, 500 g/mol, 600 g/mol or 700 g/mol,
- the upper limit may be about 2,000 g/mol, 1,500 g/mol, 1,000 g/mol or 900 g/mol.
- the weight average molecular weight is greater than or equal to any one of the lower limits described above, less than or equal to any one of the upper limits described above, or any one of the lower limit and any one of the upper limit described above. It may be within the range between upper limits.
- the second polyol of the polyol component may be an oligomeric or polymeric compound and may have an appropriate level of molecular weight.
- the lower limit of the weight average molecular weight of the second polyol may be about 500 g/mol, 600 g/mol or 700 g/mol, and the upper limit is about 5,000 g/mol, 4,500 g/mol, 4,000 g/mol, or 3,500 g /mol, 3,000 g/mol, 2,500 g/mol, 2,000 g/mol, 1,500 g/mol, 1,000 g/mol or 900 g/mol.
- the weight average molecular weight is greater than or equal to any one of the lower limits described above, less than or equal to any one of the upper limits described above, or any one of the lower limit and any one of the upper limit described above. It may be within the range between upper limits.
- viscosity and thixotropy suitable for a process may be secured by controlling the weight average molecular weights of the first polyol and the second polyol of the polyol component within the above range.
- the polyol component may include the first polyol in an amount greater than 80% by weight based on the total weight of the polyol component.
- the lower limit of the content of the first polyol in the polyol component is 81% by weight, 82% by weight, 83% by weight, 84% by weight, 85% by weight, 86% by weight, 87% by weight, 88% by weight, It may be about 89% by weight or 90% by weight, and the upper limit may be about 97% by weight, 96% by weight, 95% by weight, 94% by weight, 93% by weight, 92% by weight or 91% by weight.
- the content of the first polyol in the polyol component is greater than or equal to any one of the lower limits described above, less than or equal to any one of the upper limits described above, or between any one of the lower limits and the upper limit described above. It may be within a range between any one of the upper limits.
- the content of the first polyol as described above, it is possible to have excellent compoundability in combination with a filler component described later, to secure viscosity and thixotropy suitable for the process, and to secure excellent curability by curing more densely during curing. And it is possible to form a cured product capable of exhibiting low adhesive strength or low adhesive strength with respect to a specific adherend.
- the weight ratio (P A /P B ) of the first polyol (PA ) and the second polyol (P B ) may be 5 or more.
- the lower limit of the weight ratio (P A /P B ) may be about 5.5, 6, 6.5, 7, 7.5, 8, 8.5, or 9, and the upper limit may be about 20, 18, 16, 14, 12, or 10.
- the weight ratio (P A /P B ) is greater than or equal to any one of the lower limits described above, less than or equal to any one of the upper limits described above, or less than any one of the lower limits described above and It may be within the range between any one of the upper limits.
- the polyol component of the curable composition exhibits low adhesion to both PET and aluminum by controlling the weight ratio (P A /P B ) of the first polyol ( PA ) and the second polyol (P B ) as described above. Or, it is possible to form a cured product capable of exhibiting low adhesion.
- the OH% of the first polyol may be in the range of 3 or more to 20 or less.
- the lower limit of OH% of the first polyol may be 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7 or 7.5, and the upper limit may be 18, 16, 14, 12 or 10.
- the OH% of the first polyol is greater than or equal to the lower limit of any one of the lower limits described above, less than or equal to the upper limit of any one of the upper limits described above, or lower limit of any one of the lower limits described above and any upper limit described above. It may be within a range between any one upper limit.
- a cured product of the curable composition having appropriate hardness without being brittle can be secured.
- OH% of polyol may refer to the percentage of the weight of the hydroxyl group (-OH) included in the polyol corresponding to 1 mol relative to the weight of the polyol corresponding to 1 mol.
- the OH% of the second polyol may be within a range of 0.5 or more to 5 or less.
- the lower limit of the OH% of the second polyol may be 0.75, 0.8, 0.85, 0.9, 0.95, 1, 1.25, 1.5, 1.75, 2, 2.25 or 2.5, and the upper limit may be 4.5, 4, 3.5 or 3.
- the OH% of the second polyol is greater than or equal to the lower limit of any one of the lower limits described above, less than or equal to the upper limit of any one of the upper limits described above, or lower limit of any one of the lower limits described above and any upper limit described above. It may be within a range between any one upper limit.
- a cured product of the curable composition having appropriate hardness without being brittle can be secured.
- the polyol component may further include other polyols different from the first polyol and the second polyol.
- the other polyol may be an oil-modified polyol or a non-oil-modified polyol described above, or a mixture thereof.
- the curable composition according to an example of the present application may include a filler component.
- the curable composition may secure viscosity and thixotropy suitable for the process through a combination of the above-described polyol component and the filler component.
- the curable composition according to an example of the present application may have a viscosity of 400 kcP or less at 25° C. measured under a shear rate condition of 2.4 s -1 .
- the upper limit of the viscosity of the curable composition may be about 390 kcP, 380 kcP, 370 kcP, 360 kcP, 350 kcP, 340 kcP, 330 kcP, 320 kcP, 310 kcP or 300 kcP, and the lower limit may be about 100 kcP, 105 kcP, or 110 kcP.
- the viscosity of the curable composition is equal to or greater than any one of the lower limits described above, equal to or less than any one of the upper limits described above, or any one of the lower limit of any one of the above-described lower limits and the upper limit described above. It may be within a range between upper limits.
- the curable composition according to an example of the present application may have a thixotropic index (T.I.) of 5 or less according to Formula 1 below.
- T.I. thixotropic index
- the upper limit of the thixotropic index of the curable composition may be about 4.9, 4.8, 4.7, 4.6, 4.5, 4.4, 4.3, 4.2, 4.1 or 4, and the lower limit may be about 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.1, 2.2, It can be around 2.3, 2.4, 2.5, 2.6 or 2.7.
- the thixotropic index of the curable composition is equal to or greater than any one of the lower limits described above, equal to or less than any one upper limit among the above-described upper limits, or less than any one of the lower limits described above and any one of the upper limits described above. It may be within a range between upper limits.
- V 1 is the viscosity of the curable composition measured at 25° C. and 0.24 s -1
- V 2 is the viscosity of the curable composition measured at 25° C. and 2.4 s -1 .
- the curable composition according to an example of the present application may include a filler component in a range of 70% by weight or more to 98% by weight or less based on the total weight.
- the lower limit of the content of the filler component may be about 72% by weight, 74% by weight, 76% by weight, 78% by weight, 80% by weight, 82% by weight, 84% by weight or 86% by weight based on the total weight of the curable composition
- the upper limit of the content of the filler component may be 97% by weight, 96% by weight, 95% by weight, 94% by weight, 93% by weight, 92% by weight or 91% by weight based on the total weight of the curable composition.
- the content of the filler component is greater than or equal to any one of the lower limits described above, less than or equal to any one of the upper limits described above, or any one of the lower limits described above and any one of the upper limits described above. It may be within the range between upper limits.
- the filler component may include a filler.
- the type, shape and size of the filler is not particularly limited as long as it is used in the art.
- the filler component may include one type or two or more types of fillers.
- the filler component may be a mixture of fillers having different shapes or sphericities, even if the same type of filler is used, or a mixture of fillers having different average particle diameters.
- the filler component may be a mixture of aluminum hydroxide and aluminum oxide (alumina), and the shape and average particle diameter of the aluminum hydroxide and aluminum oxide may be different from each other.
- the particle average particle diameter of the filler is the D50 particle diameter of the filler, which is the particle diameter measured by Marvern's MASTERSIZER3000 equipment in accordance with the ISO-13320 standard. Distilled water was used as a solvent during the measurement. The incident laser is scattered by the fillers dispersed in the solvent, and the intensity and direction value of the scattered laser varies depending on the size of the filler. By analyzing this using the Mie theory, the D50 particle diameter can be obtained. . Through the above analysis, the distribution is obtained through conversion to the diameter of a sphere having the same volume as the dispersed filler, and through this, the D50 value, which is the median value of the distribution, can be obtained to evaluate the particle size.
- the spherical shape of the filler may mean that the sphericity is about 0.9 or more, and the non-spherical shape may mean that the sphericity is less than about 0.9.
- the sphericity can be confirmed through particle shape analysis of the filler.
- the sphericity of a filler which is a three-dimensional particle, can be defined as the ratio (S'/S) of the surface area (S) of the particle to the surface area (S') of a sphere having the same volume of the particle.
- S'/S the ratio of the surface area of the particle to the surface area (S') of a sphere having the same volume of the particle.
- circularity is usually used. The circularity is obtained by obtaining a two-dimensional image of the actual particle, expressed as a ratio of the boundary of the image (P) and the boundary of a circle having the same area (A) as the image, and is obtained by the following formula.
- Circularity 4 ⁇ A/P 2
- the circularity is represented by a value ranging from 0 to 1, a perfect circle has a value of 1, and irregularly shaped particles have a value lower than 1.
- the sphericity value in the present application may be measured as an average value of circularity measured by Marvern's particle shape analysis equipment (FPIA-3000).
- the filler component may include a first filler having a specific gravity of 3 or less and a second filler having a specific gravity greater than 3.
- the specific gravity of the filler may be based on a value measured by the density measurement method of JIS Z2512 (2012).
- the curable composition may simultaneously secure low specific gravity characteristics and heat dissipation characteristics by including the first filler and the second filler.
- the lower limit of the specific gravity of the first filler is not particularly limited, but may be about 0.5, 0.6, or 0.7, and the specific gravity of the first filler may be in a range between 3 or less and any one of the lower limits described above. .
- the upper limit of the specific gravity of the second filler is not particularly limited, but may be about 30, 28, 26, 24, 22, or 20, and the specific gravity of the second filler is greater than 3 to any one of the upper limits described above. It can be within the range between the upper limits. In addition, the specific gravity of the second filler may be within a range between 3.1 or more and any one of the upper limits described above.
- the filler component may include the first filler in an amount of 10 wt% or more to 80 wt% based on the total weight of the curable composition.
- the upper limit of the content of the first filler may be about 75% by weight, 70% by weight, 65% by weight, 60% by weight, 55% by weight or 50% by weight based on the total weight of the curable composition, and the content of the first filler
- the lower limit may be about 11% by weight, 12% by weight, 13% by weight, 14% by weight, 15% by weight or 16% by weight based on the total weight of the curable composition.
- the content of the first filler is greater than or equal to any one of the lower limits described above, less than or equal to any one of the upper limits described above, or any one of the lower limits described above and any one of the upper limits described above. It may be within a range between upper limits.
- the result measured according to the UL 94 V Test is V-0 even without substantially including a flame retardant containing a halogen element and a flame retardant containing a phosphorus (P) element. rating can be obtained.
- the first filler may be a metal hydroxide.
- the type of the metal hydroxide is not particularly limited, but may include one or more selected from the group consisting of aluminum hydroxide and magnesium hydroxide.
- the first filler may be a metal hydroxide and have an average particle diameter of 60 ⁇ m or less.
- the lower limit of the average particle diameter of the first filler is not particularly limited, but may be 0.1 ⁇ m, 0.5 ⁇ m, or 1 ⁇ m.
- the average particle diameter of the first filler may be within a range between 60 ⁇ m or less and any one of the lower limits described above.
- the first filler may include one or more fillers having an average particle diameter of 60 ⁇ m or less.
- the first filler may include a metal hydroxide having an average particle diameter of about 1 ⁇ m, or may include a filler having an average particle diameter of about 1 ⁇ m and a metal hydroxide having an average particle diameter of about 50 ⁇ m.
- the first filler is a first metal hydroxide (O 1 ) whose particle average particle diameter is within the range of any lower limit of the lower limit of the particle average particle diameter of the first filler and 10 ⁇ m or less and a second metal hydroxide (O 2 ) having an average particle diameter of 60 ⁇ m or less to greater than 10 ⁇ m. Since the first filler includes the first metal hydroxide and the second metal hydroxide, it is possible to secure low specific gravity characteristics and heat dissipation characteristics at the same time, and exhibit ejection properties suitable for the process and thixotropy.
- the weight ratio (O 1 /O 2 ) of the first metal hydroxide (O 1 ) and the second metal hydroxide (O 2 ) may be in the range of 0.1 to 2.
- the upper limit of the weight ratio (O 1 /O 2 ) may be about 1.8, 1.6, 1.4, 1.2 or 1, and the lower limit of the weight ratio (O 1 /O 2 ) is about 0.2, 0.3, 0.4, 0.5, 0.6, 0.7 Or it may be about 0.8.
- the weight ratio (O 1 /O 2 ) is greater than or equal to any one of the lower limits described above, less than or equal to any one of the upper limits described above, or between any one of the lower limits described above and the upper limit described above. It may be within a range between any one of the upper limits.
- the ratio (D 1 /D 2 ) of the average particle diameter (D 1 ) of the first metal hydroxide and the average particle diameter (D 2 ) of the second metal hydroxide is 0.005 to 0.1 can be within range.
- the upper limit of the average particle diameter ratio (D 1 /D 2 ) may be about 0.09, 0.08, 0.07 or 0.06, and the lower limit of the average particle diameter ratio (D 1 /D 2 ) may be about 0.01, 0.015 or 0.02.
- the particle average particle size ratio (D 1 /D 2 ) is equal to or greater than any one of the lower limits described above, less than or equal to any one upper limit among the above-described upper limits, or any one of the lower limits described above and the above description It may be within a range between any one of the upper limits.
- the average particle diameter ratio (D 1 /D 2 ) is satisfied within the above range, low specific gravity characteristics and heat dissipation characteristics can be secured at the same time, and ejection and thixotropy suitable for the process can be exhibited.
- the first filler may include one or two or more fillers that are metal hydroxides and have an average particle diameter of greater than 60 ⁇ m to 200 ⁇ m.
- the first filler may include one or two or more fillers that are metal hydroxides and have an average particle diameter of 0.1 ⁇ m or more and 60 ⁇ m or less.
- the first filler may include a metal hydroxide and a filler having an average particle diameter of more than 60 ⁇ m to 200 ⁇ m and a filler having an average particle diameter of 0.1 ⁇ m or more to 60 ⁇ m or less in an appropriate ratio.
- the filler component may include the second filler in a range of 50 to 800 parts by weight based on 100 parts by weight of the first filler.
- the upper limit of the content of the second filler may be about 750 parts by weight, 700 parts by weight, 650 parts by weight, 600 parts by weight, 550 parts by weight, or 500 parts by weight relative to 100 parts by weight of the first filler, and the second filler
- the lower limit of the content may be about 55 parts by weight, 60 parts by weight, 65 parts by weight, 70 parts by weight, 75 parts by weight, or 80 parts by weight based on 100 parts by weight of the first filler.
- the content of the second filler is more than any one of the lower limits described above, less than or equal to any one of the upper limits described above, or any one of the lower limits described above and any one of the upper limits described above. It may be within a range between upper limits.
- the second filler is at least one selected from the group consisting of aluminum oxide, magnesium oxide, beryllium oxide, titanium oxide, silicon nitride, aluminum nitride, silicon carbide, copper, silver, iron, and titanium.
- the second filler may include a 2A filler having an average particle diameter of 65 ⁇ m or more while being limited to the above-described type.
- the upper limit of the average particle diameter of the 2A filler is not particularly limited, but may be about 200 ⁇ m, 180 ⁇ m, 160 ⁇ m, 140 ⁇ m, 120 ⁇ m, 100 ⁇ m, or 80 ⁇ m.
- the average particle diameter of the 2A filler may be within a range from 65 ⁇ m or more to any one of the upper limits described above.
- the average particle diameter of the first filler is 60 ⁇ m or less as described above and the second filler includes the 2A filler, better low specific gravity characteristics and heat dissipation characteristics are secured at the same time It can be made, and it can be made to exhibit ejection properties suitable for the process and thixotropy.
- the second filler may further include a 2B filler having an average particle diameter of less than 65 ⁇ m to 10 ⁇ m or more.
- the second filler may secure excellent heat dissipation characteristics by further including a 2B filler.
- the second filler includes a 2A filler and a 2B filler
- the weight ratio of the 2A filler (X 2A ) and the 2B filler (X 2B ) (X 2A /X 2B ) can be in the range of 1 to 10.
- the upper limit of the weight ratio (X 2A /X 2B ) may be about 9, 8, 7, or 6, and the lower limit of the weight ratio (X 2A /X 2B ) may be about 2, 3, 4, or 5.
- the weight ratio (X 2A /X 2B ) is greater than or equal to any one of the lower limits described above, less than or equal to any one of the upper limits described above, or less than any one of the lower limits described above and the upper limit described above It may be within a range between any one of the upper limits.
- the second filler satisfies the weight ratio (X 2A /X 2B ) of the 2A filler (X 2A ) and the 2B filler (X 2B ) within the above range, low specific gravity characteristics and heat dissipation characteristics can be simultaneously secured. And, it can be made to exhibit ejection properties suitable for the process and thixotropy.
- the second filler includes a 2A filler and a 2B filler, and the average particle diameter of the 2A filler (D 2A ) and the average particle diameter of the 2B filler (D 2B )
- the ratio of (D 2A /D 2B ) may be in the range of 1 to 10.
- the upper limit of the average particle diameter ratio (D 2A / D 2B ) may be about 9, 8, 7, 6, 5 or 4, and the lower limit of the average particle diameter ratio (D 2A / D 2B ) is 1.5, 2, 2.5 or 3 or so.
- the second filler may include a second C filler having an average particle diameter of less than 10 ⁇ m while being limited to the above-mentioned type in some cases.
- the lower limit of the average particle diameter of the second C filler is not particularly limited, but may be about 0.01 ⁇ m, 0.05 ⁇ m, 0.1 ⁇ m, 0.5 ⁇ m, or 1 ⁇ m.
- the average particle diameter of the second C filler may be within a range from less than 10 ⁇ m to any one of the lower limits described above.
- At least one of the group consisting of the first filler and the second filler may be a thermally conductive filler.
- the thermally conductive filler has a lower limit of its own thermal conductivity of about 0.1 W/mK, 0.5 W/mK, 1 W/mK, 5 W/mK, 10 W/mK or 15 W/mK, or an upper limit of its own thermal conductivity. Although not particularly limited, it is about 400 W/mK, 380 W/mK, 350 W/mK, 320 W/mK or 300 W/mK, and the self-thermal conductivity is any one of the lower limits described above and the above description It may mean a filler within a range between any one of the upper limits. At this time, the thermal conductivity of the filler itself may be measured according to ASTM E1461.
- the lower limit of the thermal conductivity of the first filler is about 0.1 W/mK, 0.5 W/mK, 1 W/mK, 5 W/mK, 10 W/mK, or 15 W/mK, or the upper limit of its own thermal conductivity is particularly It may be, but is not limited to, 400 W/mK, 380 W/mK, 350 W/mK, 320 W/mK or 300 W/mK.
- the thermal conductivity of the first filler is equal to or greater than any one of the lower limits described above, equal to or less than any one of the upper limits described above, or any one of the lower limit and the upper limit described above. It may be within a range between any one upper limit.
- the lower limit of the thermal conductivity of the second filler is about 1 W/mK, 5 W/mK, 10 W/mK, or 15 W/mK, or the upper limit of the thermal conductivity itself is not particularly limited, but is 400 W/mK, 380 It may be on the order of W/mK, 350 W/mK, 320 W/mK or 300 W/mK.
- the thermal conductivity of the first filler is equal to or greater than any one of the lower limits described above, equal to or less than any one of the upper limits described above, or any one of the lower limit and the upper limit described above. It may be within a range between any one upper limit.
- the filler component may further include a third filler different from the first filler and the second filler.
- the third filler may be a thermally conductive filler.
- the type of the third filler is not particularly limited, but a metal oxide filler such as aluminum oxide (alumina), magnesium oxide, beryllium oxide, or titanium oxide; metal hydroxide fillers such as aluminum hydroxide or magnesium hydroxide; Nitride fillers, such as boron nitride, silicon nitride, or aluminum nitride; carbide fillers such as silicon carbide; metal fillers such as copper, silver, iron, aluminum or nickel; And it may include one or more selected from the group consisting of a metal alloy filler.
- the shape and size of the third filler are not particularly limited as long as they are used in the art.
- the curable composition according to an example of the present application may further include one or two or more additives exemplified below as necessary to secure additional physical properties.
- the additives are sufficient as long as they are generally usable in the art, and are not necessarily limited to the additives exemplified below.
- the curable composition according to an example of the present application may further include a plasticizer.
- the type of plasticizer is not particularly limited, but examples include phthalic acid compounds, phosphoric acid compounds, adipic acid compounds, sebacic acid compounds, citric acid compounds, glycolic acid compounds, trimellitic acid compounds, polyester compounds, epoxidized soybean oil, chlorinated Paraffin, chlorinated fatty acid esters, fatty acid compounds, compounds having a saturated aliphatic chain substituted with a sulfonic acid group bound to a phenyl group (eg, LANXESS mesamoll), and vegetable oil may be selected and used.
- a plasticizer is not particularly limited, but examples include phthalic acid compounds, phosphoric acid compounds, adipic acid compounds, sebacic acid compounds, citric acid compounds, glycolic acid compounds, trimellitic acid compounds, polyester compounds, epoxidized soybean oil, chlorinated Paraffin, chlorinated fatty acid esters, fatty acid compounds, compounds having a saturated ali
- the phthalic acid compound is dimethyl phthalate, diethyl phthalate, dibutyl phthalate, dihexyl phthalate, di-n-octyl phthalate, di-2-ethylhexyl phthalate, diisooctyl phthalate, dicapryl phthalate, dinonyl phthalate, diisononyl phthalate, didecyl phthalate, diundecyl phthalate, dilauryl phthalate, ditridecyl phthalate, dibenzyl phthalate, dicyclohexyl phthalate, butyl benzyl phthalate, octyldecyl phthalate, butyl octyl phthalate, octyl benzyl phthalate, n-hexyl n- One or more of decyl phthalate, n-octyl phthalate and n-decyl
- phosphoric acid compound one or more of tricresyl phosphate, trioctyl phosphate, triphenyl phosphate, octyl diphenyl phosphate, cresyl diphenyl phosphate and trichloroethyl phosphate may be used.
- the adipic acid compound is dibutoxyethoxyethyl adipate (DBEEA), dioctyl adipate, diisooctyl adipate, di-n-octyl adipate, didecyl adipate, diisononyl adipate (DINA), One or more of diisodecyl adipate (DIDP), n-octyl n-decyl adipate, n-heptyl adipate and n-nonyl adipate may be used.
- DEEA dibutoxyethoxyethyl adipate
- DINA diisononyl adipate
- DIDP diisodecyl adipate
- n-octyl n-decyl adipate n-heptyl adipate and n-nonyl adipate
- the sebacic acid compound may use at least one of dibutyl sebacate, dioctyl sebacate, diisooctyl sebacate and butyl benzyl.
- the citric acid compound one or more of triethyl citrate, acetyl triethyl citrate, tributyl citrate, acetyl tributyl citrate, and acetyl trioctyl citrate may be used.
- the glycolic acid compound one or more of methyl phthalyl ethyl glycolate, ethyl phthalyl ethyl glycolate, and butyl phthalyl ethyl glycolate may be used.
- the trimellitic acid compound may use at least one of trioctyl trimellitate and tri-n-octyl n-decyl trimellitate.
- the polyester compound is butane diol, ethylene glycol, propane 1,2-diol, propane 1,3 diol, polyethylene glycol, glycerol, a diacid (selected from adipic acid, succinic acid, succinic anhydride) and a hydroxy acid (such as , hydroxystearic acid).
- the curable composition according to an example of the present application may include a plasticizer in an amount of 0.1 part by weight or more and 2 parts by weight or less based on 100 parts by weight of the filler component.
- the upper limit of the plasticizer content may be about 1.9 parts by weight, 1.8 parts by weight, 1.7 parts by weight, 1.6 parts by weight or 1.5 parts by weight based on 100 parts by weight of the filler component, and the lower limit of the plasticizer content is 0.2 parts by weight based on 100 parts by weight of the filler component. It may be about 0.3 parts by weight, 0.4 parts by weight, 0.5 parts by weight, 0.6 parts by weight or 0.7 parts by weight.
- the content of the plasticizer is greater than or equal to any one of the lower limits described above, less than or equal to any one of the upper limits described above, or any one of the lower limits described above and any one upper limit of the upper limits described above It may be within the range between
- the curable composition according to an example of the present application may further include a dispersant.
- the dispersant is, for example, polyamideamine and its salt, polycarboxylic acid and its salt, modified polyurethane, modified polyester, modified poly(meth)acrylate, (meth)acrylic copolymer, naphthalenesulfonic acid formalin Condensates, polyoxyethylene alkyl phosphoric acid esters, polyoxyethylene alkylamines and pigment derivatives may be used, but any dispersant known in the art may be used without limitation.
- a viscosity modifier for example, a thixotropy imparting agent, a diluent or A coupling agent and the like may be further included.
- the thixotropy imparting agent can adjust the viscosity according to the shear force.
- fumed silica and the like can be exemplified.
- the diluent is usually used to lower the viscosity, and various types known in the art can be used without limitation as long as it can exhibit the above function.
- a coupling agent for example, it can be used to improve the dispersibility of a filler component (eg, alumina, etc.), and as long as it can exhibit the above function, various types known in the art are used without limitation. can be used
- the curable composition according to an example of the present application may further include a curing agent part reacting with polyol.
- a composition containing the curable composition as a main part and a curing agent part at the same time will be referred to as a two-component curable composition and explained.
- a two-component curable composition according to an example of the present application may include a subject part and a curing agent part.
- the main part includes a polyol component and a first filler component
- the curing agent part includes an isocyanate component and a second filler component.
- the curable composition according to an example of the present application described above may be applied to the main part. That is, the contents of the polyol component of the above-described curable composition according to an example of the present application may be referred to, and the contents of the filler component of the curable composition may be referred to as the first filler component of the two-component curable composition.
- the two-component curable composition according to an example of the present application, at least some of the components participating in curing are physically separated and included.
- the two-component curable composition or a cured product thereof may have at least one of the following physical properties. Each physical property described below is independent, and one physical property does not take precedence over another physical property, and at least one or two or more of the physical properties described below may be satisfied.
- the physical properties described below are caused by a combination of each component included in the curable composition or a cured product thereof.
- the two-component curable composition or a cured product thereof may exhibit low adhesive strength with respect to a specific adherend or form a cured product capable of exhibiting low adhesive strength.
- This curable composition may be the above polyurethane composition.
- Polyurethane is known as an adhesive material capable of exhibiting excellent adhesion to various adherends. Therefore, as a method of making the polyurethane composition exhibit low adhesive strength to an adherend, a method of introducing a component that lowers the adhesive strength, such as a plasticizer, is usually used.
- the adhesive strength of the polyurethane material can be lowered, but the component deteriorates other physical properties that could be secured in the polyurethane or elutes out of the material during the use of the polyurethane material. Problems can arise.
- the low adhesive strength can be achieved for polyurethane materials while minimizing the amount of adhesive strength reducing components such as plasticizers. Therefore, in the present application, it is possible to provide a material that solves the problem of high adhesive strength that is not required depending on the use while taking the advantages of polyurethane material.
- the two-component curable composition or a cured product thereof may have adhesive strength to aluminum of 1 N/mm 2 or less.
- the upper limit of the adhesive strength of the curable composition or the cured product to aluminum is 0.1 N/mm 2 , 0.099 N/mm 2 , 0.098 N/mm 2 , 0.097 N/mm 2 , 0.096 N/mm 2 , 0.095 N /mm 2 , 0.094 N/mm 2 , 0.093 N/mm 2 , 0.092 N/mm 2 , 0.091 N/mm 2 or 0.09 N/mm 2 .
- the curable composition or the curable product may have adhesive strength to aluminum that is less than or equal to any one of the upper limits described above.
- the lower limit of the adhesive strength to aluminum is not particularly limited.
- the adhesive strength to aluminum may be 0 N/mm 2 or more or 0 N/mm 2 or more.
- the curable composition may be a curable composition having substantially no adhesion to aluminum or a curable composition capable of forming a substantially unmeasured cured product. Therefore, the adhesion to aluminum may be 0 N/mm 2 or more or 0 N/mm 2 or more , and may be less than or equal to any one of the upper limits described above.
- the adhesive strength of the curable composition or its cured product to aluminum can be measured in the manner described in Examples herein.
- the two-component curable composition or a cured product thereof may have adhesive strength to polyester of 100 gf/cm or less.
- the upper limit of the adhesive strength of the curable composition or the cured product to polyester is 99.9 gf/cm, 99.8 gf/cm, 99.7 gf/cm, 99.6 gf/cm, 99.5 gf/cm, 99.4 gf/cm, 99.3 gf in other examples.
- the adhesive strength of the curable composition or cured product thereof to polyester may be equal to or less than any one of the upper limits described above.
- the lower limit of the adhesive strength to the polyester is not particularly limited.
- the lower limit of the adhesive strength of the curable composition or the cured product to the polyester is 0 gf/cm, 2 gf/cm, 4 gf/cm, 6 gf/cm, 8 gf/cm, 10 gf/cm, 12 gf/cm, 14 gf/cm, 16 gf/cm, 18 gf/cm or 20 gf/cm.
- the curable composition or a cured product thereof may exhibit substantially no adhesive strength to polyester.
- the adhesive force of the curable composition or a cured product thereof to polyester may be in a range between any lower limit of any one of the lower limits described above and any one upper limit of any one of the upper limits described above.
- the adhesive strength of the curable composition or its cured product to polyester can be measured in the manner described in Examples herein.
- the two-component curable composition or a cured product thereof may exhibit excellent thermal conductivity.
- the lower limit of the thermal conductivity of the curable composition or its cured product is 2.0 W/mK, 2.1 W/mK, 2.2 W/mK, 2.3 W/mK, 2.4 W/mK, 2.5 W/mK, 2.6 W/mK. It may be about mK, 2.7 W/mK, 2.8 W/mK, 2.9 W/mK, or 3 W/mK.
- the thermal conductivity may be greater than or equal to any one of the lower limits described above. There is no particular limitation on the upper limit of the thermal conductivity.
- the upper limit of the thermal conductivity of the curable composition or a cured product thereof is 10 W/mK, 9 W/mK, 8 W/mK, 7 W/mK, 6 W/mK, 5 W/mK or 4 W It may be around /mK.
- the thermal conductivity may be in a range between any one of the lower limits described above and any one of the upper limits described above.
- the thermal conductivity of such a curable composition or a cured product thereof can be measured by the method disclosed in the Examples below.
- the two-component curable composition or a cured product thereof may also exhibit appropriate hardness.
- the hardness of the curable composition or its cured product is too high, problems may occur due to excessive brittleness.
- it is possible to secure impact resistance and vibration resistance, and to secure the durability of the product according to the application purpose. It may be 100, 98, 96, 94, 92 or 90 of the hardness in Shore (shore) OO type of curable composition or its cured product.
- the Shore OO type hardness may be less than or equal to any one of the upper limits described above.
- the lower limit of the Shore OO type hardness may be 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75 or 80.
- the Shore OO type hardness may be greater than or equal to any one of the lower limits described above.
- the Shore OO type hardness may be in a range between any one of the upper limits described above and any one of the lower limits described above. The hardness of such a curable composition or a cured product thereof can be measured by the method disclosed in Examples below.
- the two-component curable composition or cured product thereof may also exhibit appropriate flexibility.
- applications can be greatly expanded by adjusting the flexibility of the curable composition or its cured product to a desired level.
- the upper limit of the radius of curvature of the curable composition or its cured product is 20 mm, 19 mm, 18 mm, 17 mm, 16 mm, 15 mm, 14 mm, 13 mm, 12 mm, 11 mm, 10 mm or 9 mm. It can be on the order of mm.
- the radius of curvature may be equal to or less than any one of the upper limits described above.
- the lower limit of the radius of curvature may be, for example, about 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, or 7 mm.
- the radius of curvature may be greater than or equal to any one of the lower limits described above.
- the radius of curvature may be within a range between any one of the upper limits described above and any one of the lower limits described above.
- the radius of curvature of such a curable composition or a cured product thereof can be measured by the method disclosed in Examples below.
- the two-component curable composition or a cured product thereof may be insulating. That is, the curable composition may have insulating properties and/or form a cured product having insulating properties.
- the curable composition or its cured product has a lower limit of the dielectric breakdown voltage measured in accordance with ASTM D149, 3 kV/mm, 5 kV/mm, 7 kV/mm, 10 kV/mm, 15 kV/mm Or it may be on the order of 20 kV/mm.
- the breakdown voltage may be greater than or equal to any one of the lower limits described above. The higher the value of the dielectric breakdown voltage, the better the insulation.
- the upper limit is not particularly limited, but considering the composition of the curable composition, the upper limit of the dielectric breakdown voltage is 50 kV/mm, 45 kV/mm. mm, 40 kV/mm, 35 kV/mm or 30 kV/mm.
- the dielectric breakdown voltage may be equal to or less than any one of the upper limits described above.
- the breakdown voltage as described above can be controlled by adjusting the insulating properties of the curable composition, and can be achieved, for example, by applying an insulating filler to the composition. In general, among fillers, a ceramic filler is known as a component capable of securing insulation.
- the cured product of the curable composition can secure electrical insulation as described above, stability can be secured while maintaining performance with respect to various materials, for example, a case or a battery cell included in a battery module.
- the two-component curable composition or a cured product thereof may have flame retardancy.
- the curable composition or a cured product thereof may exhibit a V-0 grade in the UL 94 V Test (Vertical Burning Test). Accordingly, it is possible to secure stability against fire and other accidents that are of concern depending on the application of the curable composition.
- in order to secure the flame retardancy it was generally secured through a flame retardant containing a halogen element, a flame retardant containing a phosphorus element, and a combination thereof.
- the curable composition or a cured product thereof substantially does not contain a halogen element-containing flame retardant and a phosphorus (P) element-containing flame retardant through an appropriate combination of a polyol component and a filler component to be described later, UL 94 V
- the result measured according to the test may be a V-0 grade.
- the combined content of halogen and phosphorus may be 0.3% by weight or less based on the total content of the curable composition or cured product.
- the upper limit of the combined content of the halogen and phosphorus elements is 0.29 wt%, 0.28 wt%, 0.27 wt%, 0.26 wt%, 0.25 wt%, 0.24 wt%, 0.23 wt%, 0.22 wt% based on the total content of the curable composition or cured product. %, 0.21% or 0.2% by weight.
- the combined content of the halogen and phosphorus elements may be equal to or less than any one of the upper limits described above.
- the lower limit of the combined content of the halogen and phosphorus elements is not particularly limited, but may be 0% by weight (not included) or greater than 0% by weight based on the total content of the curable composition or cured product. It can be confirmed that the curable composition or a cured product thereof does not substantially include a flame retardant containing a halogen element and a flame retardant containing a phosphorus element through the sum of halogen and phosphorus elements. The sum of the halogen and phosphorus elements may be greater than or equal to any one of the lower limits described above.
- the combined content of the halogen and phosphorus elements may be within a range between any one of the upper limits described above and any one of the lower limits described above.
- the halogen element content, the phosphorus content, and the combined content of the halogen element and the phosphorus element of the two-component curable composition or the cured product thereof according to an example of the present application may be measured through an ICP analysis method.
- the halogen element content may be 0.3% by weight or less based on the total content of the curable composition or cured product.
- the upper limit of the content of the halogen element is 0.29 wt%, 0.28 wt%, 0.27 wt%, 0.26 wt%, 0.25 wt%, 0.24 wt%, 0.23 wt%, 0.22 wt%, 0.21 wt% based on the total content of the curable composition or cured product. weight percent or 0.2 weight percent.
- the content of the halogen element may be equal to or less than any one of the upper limits described above.
- the lower limit of the content of the halogen element is not particularly limited, but may be 0% by weight (not included) or greater than 0% by weight based on the total content of the curable composition or cured product.
- the curable composition or a cured product thereof does not substantially include a flame retardant containing a halogen element through the content of the halogen element.
- the halogen content may be greater than or equal to any one of the lower limits described above.
- the halogen content may be within a range between any one of the upper limits described above and any one of the lower limits described above.
- the content of elemental phosphorus may be 0.3% by weight or less based on the total content of the curable composition or cured product.
- the upper limit of the content of elemental phosphorus is 0.29 wt%, 0.28 wt%, 0.27 wt%, 0.26 wt%, 0.25 wt%, 0.24 wt%, 0.23 wt%, 0.22 wt%, 0.21 wt% based on the total content of the curable composition or cured product. weight percent or 0.2 weight percent.
- the content of elemental phosphorus may be equal to or less than any one of the upper limits described above.
- the lower limit of the content of elemental phosphorus is not particularly limited, but may be 0% by weight (not included) or greater than 0% by weight based on the total content of the curable composition or cured product. It can be confirmed that the curable composition or a cured product thereof does not substantially include a flame retardant containing elemental phosphorus through the content of elemental phosphorus.
- the phosphorus content may be greater than or equal to any one of the lower limits described above.
- the phosphorus content may be within a range between any one of the upper limits described above and any one of the lower limits described above.
- the sum of the flame retardant containing a halogen element and the flame retardant containing a phosphorus element may be 1% by weight or less based on the total content of the curable composition or cured product.
- the upper limit of the sum of the content of the halogen element-containing flame retardant and the phosphorus element-containing flame retardant is 0.9% by weight, 0.8% by weight, 0.7% by weight, 0.6% by weight, 0.5% by weight, 0.4% by weight based on the total content of the curable composition or cured product. %, 0.3%, 0.2%, 0.1%, 0.01% or 0.001%.
- the sum of the halogen element-containing flame retardant and the phosphorus element-containing flame retardant may be equal to or less than any one of the upper limits described above.
- the lower limit of the sum of the halogen element-containing flame retardant and the phosphorus element-containing flame retardant is not particularly limited, but may be 0% by weight (not included) or greater than 0% by weight based on the total content of the curable composition or cured product. .
- the sum of the halogen element-containing flame retardant and the phosphorus element-containing flame retardant may be greater than or equal to any one of the lower limits described above.
- the sum of the content of the halogen element-containing flame retardant and the phosphorus element-containing flame retardant may be within a range between any one of the upper limits described above and any one of the lower limits described above.
- the content of the flame retardant containing a halogen element may be 1% by weight or less based on the total content of the curable composition or cured product.
- the upper limit of the content of the flame retardant containing the halogen element is 0.9% by weight, 0.8% by weight, 0.7% by weight, 0.6% by weight, 0.5% by weight, 0.4% by weight, 0.3% by weight, 0.2% by weight based on the total content of the curable composition or cured product. %, 0.1%, 0.01% or 0.001%.
- the content of the flame retardant containing the halogen element may be equal to or less than any one of the upper limits described above.
- the lower limit of the content of the halogen element-containing flame retardant is not particularly limited, but may be 0% by weight (not included) or greater than 0% by weight based on the total content of the curable composition or cured product.
- the content of the flame retardant containing the halogen element may be greater than or equal to any one of the lower limits described above.
- the content of the halogen element-containing flame retardant may be in a range between any one of the upper limits described above and any one of the lower limits described above.
- the content of the flame retardant containing elemental phosphorus may be 1 wt% or less based on the total content of the curable composition or cured product.
- the upper limit of the content of the flame retardant containing elemental phosphorus is 0.9% by weight, 0.8% by weight, 0.7% by weight, 0.6% by weight, 0.5% by weight, 0.4% by weight, 0.3% by weight, 0.2% by weight based on the total content of the curable composition or cured product. %, 0.1%, 0.01% or 0.001%.
- the content of the flame retardant containing elemental phosphorus may be equal to or less than any one of the upper limits described above.
- the lower limit of the content of the flame retardant containing elemental phosphorus is not particularly limited, but may be 0% by weight (not included) or greater than 0% by weight based on the total content of the curable composition or cured product.
- the content of the flame retardant containing elemental phosphorus may be greater than or equal to any one of the lower limits described above.
- the content of the flame retardant containing elemental phosphorus may be within a range between any one of the upper limits described above and any one of the lower limits described above.
- the two-component curable composition or a cured product thereof may have a specific gravity of 3 or less.
- the upper limit of the specific gravity may be 2.99, 2.98, 2.97 or 2.96.
- the upper limit of the specific gravity may be equal to or less than any one of the upper limits described above.
- the specific gravity as described above can be achieved by applying a filler having a low specific gravity and/or applying a surface-treated filler.
- the lower limit of the specific gravity is not particularly limited because the lower the specific gravity, the more advantageous it is to reduce the weight of the applied product.
- the specific gravity may be about 1.5 or more or 2 or more.
- the specific gravity may be greater than or equal to any one of the lower limits described above.
- the specific gravity may be within a range between any one of the upper limits described above and any one of the lower limits described above.
- the two-component curable composition or a cured product thereof can be used as a thermal interface material and the like, and, for example, quickly dissipates heat generated when rapidly charging a battery, thereby reducing risks such as fire. can reduce
- a high specific gravity thermally conductive filler is generally applied in excess.
- the weight of the battery increases, and eventually the weight of the product to which the battery is applied also increases.
- fuel efficiency of the vehicle may be disadvantageous. Therefore, in order for the curable composition or a cured product thereof to have a low specific gravity, the content of the filler having a high specific gravity should be reduced.
- the two-component curable composition or cured product thereof according to an example of the present application can simultaneously secure low specific gravity characteristics and heat dissipation characteristics even in the above trade-off relationship through an appropriate combination of filler components described later.
- the curable composition according to an example of the present application may have a low shrinkage rate during or after curing. Through this, it is possible to prevent peeling or generation of gaps that may occur during the application process.
- the shrinkage rate may be appropriately adjusted within a range capable of exhibiting the above-described effect, and may be, for example, less than 5%, less than 3%, or less than about 1%. Since the shrinkage rate is more advantageous as the value is lower, the lower limit is not particularly limited.
- a two-component curable composition or a cured product thereof according to an example of the present application may have a low coefficient of thermal expansion (CTE). Through this, it is possible to prevent peeling or generation of voids that may occur during application or use.
- the thermal expansion coefficient may be appropriately adjusted within a range capable of exhibiting the above-described effect, for example, less than 300 ppm/K, less than 250 ppm/K, less than 200 ppm/K, less than 150 ppm/K, or about 100 ppm/K. It may be less than ppm/K.
- the lower limit of the coefficient of thermal expansion is not particularly limited, since the lower the value, the more advantageous the coefficient of thermal expansion is.
- the two-component curable composition or cured product thereof according to an example of the present application also has a 5% weight loss temperature of 400 ° C. or more in thermogravimetric analysis (TGA), or a residual amount of 800 ° C. is 70% by weight may be ideal Due to these properties, stability at high temperatures can be further improved.
- the amount remaining at 800° C. may be about 75% by weight or more, about 80% by weight or more, about 85% by weight or more, or about 90% by weight or more in another example.
- the amount remaining at 800° C. may be about 99% by weight or less in another example.
- thermogravimetric analysis may measure the temperature within the range of 25 °C to 800 °C at a heating rate of 20 °C min under a nitrogen (N 2 ) atmosphere at 60 cm 3 /min.
- the thermogravimetric analysis (TGA) result can also be achieved by adjusting the composition of the curable composition.
- the remaining amount at 800°C is usually influenced by the type or ratio of the filler contained in the curable composition, and when an excessive amount of filler is included, the remaining amount increases.
- the isocyanate component included in the curing agent part is 55% by weight or more, 60% by weight or more, 65% by weight or more, 70% by weight or more, 75% by weight or more of the isocyanate compound relative to the total weight or more, 80% by weight or more, 85% by weight or more, 90% by weight or more, 95% by weight or more, 99% by weight or more, or 100% by weight.
- An isocyanate compound may refer to a compound in which the lower limit of the number of isocyanate groups is about 1 or 2 per molecule.
- the upper limit of the number of isocyanates of the isocyanate is not particularly limited, but may be about 10, 9, 8, 7, 6, 5, 4 or 3 per molecule.
- the number of isocyanate groups included in the isocyanate compound is equal to or greater than any one of the lower limits described above, equal to or less than any one upper limit among the above-described upper limits, or any one of the lower limits and the upper limit described above. It may be within a range between any one of the upper limits.
- the isocyanate compound when the isocyanate group of the isocyanate compound is one per molecule, the isocyanate compound may be referred to as a monofunctional isocyanate compound. In addition, when the isocyanate compound has two or more isocyanate groups per molecule, the isocyanate compound may be referred to as a polyisocyanate compound. From the viewpoint of forming a polyurethane resin by reacting with the polyol component in the main part, it may be appropriate that the isocyanate compound is a polyisocyanate compound. In addition, the isocyanate compound may be called according to the number of isocyanate groups, and may be called, for example, a bifunctional isocyanate compound or a diisocyanate compound (having two isocyanate groups).
- the type of isocyanate compound is not particularly limited, but non-aromatic polyisocyanate containing no aromatic group may be used to secure desired physical properties.
- the isocyanate compound is an isocyanate group among non-aromatic polyisocyanates that do not contain an aromatic group in order to secure desired physical properties when considering the combination of polyol components included in the main composition. It may be more suitable to use three or more non-aromatic polyisocyanates.
- polyisocyanate compound examples include aliphatic polyisocyanates such as hexamethylene diisocyanate, trimethylhexamethylene diisocyanate, lysine diisocyanate, norbornane diisocyanate methyl, ethylene diisocyanate, propylene diisocyanate, or tetramethylene diisocyanate.
- alicyclic polyisocyanates such as transcyclohexane-1,4-diisocyanate, isophorone diisocyanate, bis(isocyanatemethyl)cyclohexane diisocyanate, or dicyclohexylmethane diisocyanate;
- alicyclic polyisocyanates such as transcyclohexane-1,4-diisocyanate, isophorone diisocyanate, bis(isocyanatemethyl)cyclohexane diisocyanate, or dicyclohexylmethane diisocyanate
- one or more of the above carbodiimide-modified polyisocyanates or isocyanurate-modified polyisocyanates may be used.
- polyisocyanate the addition reaction product of the above-mentioned diisocyanate and polyol (for example, trimethylol propane etc.) can also be used.
- the polyisocyanate compound for example, the diisocyan
- the curing agent part may include an isocyanate component within a range of 1% to 10% by weight based on the total weight of the curing agent part.
- the upper limit of the content of the isocyanate component may be about 9% by weight, 8% by weight, 7% by weight or 6% by weight based on the total weight of the curing agent part, and the lower limit of the content of the isocyanate component is 1.5% by weight, 2% by weight, or 2.5% by weight. wt%, 3 wt% or 3.5 wt%.
- the content of the isocyanate component is equal to or more than any one of the lower limits described above, less than or equal to any one upper limit of the above-described upper limits, or any one of the lower limits and any one of the upper limits described above. It may be within the range between upper limits.
- the curing agent part may include a second filler component.
- the curing agent part may secure viscosity and thixotropy suitable for the process through a combination of the above-described isocyanate component and the second filler component.
- the curing agent part may have a viscosity of 390 kcP or less at 25° C. measured under a shear rate condition of 2.4 s -1 .
- the upper limit of the viscosity of the curing agent part may be 380 kcP, 370 kcP, 360 kcP, 350 kcP, 340 kcP, 330 kcP, 320 kcP, 310 kcP or 300 kcP, and the lower limit may be 90 kcP, 100 kcP, 105 kcP, 110 It may be about kcP, 115 kcP, 120 kcP, 125 kcP, 130 kcP or 135 kcP.
- the viscosity of the curing agent part is greater than or equal to any one of the lower limits described above, less than or equal to any one of the upper limits described above, or any one of the lower limits described above and any one of the upper limits described above. It may be within a range between upper limits.
- the curing agent part may have a thixotropic index (T.I.) of 10 or less according to Formula 2 below.
- the upper limit of the thixotropic index of the curing agent part may be about 9, 8, or 7, and the lower limit of the thixotropic index of the curing agent part may be about 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, or 2.8.
- the thixotropy index of the curing agent part is equal to or greater than any one of the lower limits described above, equal to or less than any one upper limit among the above-described upper limits, or any one of the lower limit of any one of the above-described lower limits and the upper limit described above. It may be within a range between upper limits.
- Thixotropic index (TI) V 3 /V 4
- V 3 is the viscosity of the curing agent part measured under conditions of 25°C and 0.24 s -1
- V 4 is the viscosity of the curing agent part measured under conditions of 25°C and 2.4 s -1 .
- the curing agent part may include the second filler component in an amount of 1,000 parts by weight or more and 3,000 parts by weight or less based on 100 parts by weight of the isocyanate component.
- the lower limit of the content of the second filler component may be about 1,100 parts by weight, 1,200 parts by weight, 1,300 parts by weight, 1,400 parts by weight, 1,500 parts by weight, 1,600 parts by weight, or 1,700 parts by weight based on 100 parts by weight of the isocyanate component.
- the upper limit of the content of the filler component may be about 2,900 parts by weight, 2,800 parts by weight, 2,700 parts by weight, 2,600 parts by weight, 2,500 parts by weight, or 2,400 parts by weight based on 100 parts by weight of the isocyanate component.
- the content of the second filler component is greater than or equal to any one of the lower limits described above, less than or equal to any one of the upper limits described above, or any one of the lower limits and the upper limit described above. It may be within a range between any one upper limit.
- the second filler component of the curing agent part may include a filler.
- the type, shape and size of the filler is not particularly limited as long as it is used in the art.
- the filler component may include one type or two or more types of fillers.
- the filler component may be a mixture of fillers having different shapes or sphericities, even if the same type of filler is used, or a mixture of fillers having different average particle diameters.
- the second filler component of the curing agent part may include a second filler having a specific gravity greater than 3.
- the upper limit of the specific gravity of the second filler is not particularly limited, but may be about 30, 28, 26, 24, 22, or 20.
- the specific gravity of the second filler may be within a range between greater than 3 and any one of the upper limits described above.
- the specific gravity of the second filler may be within a range between 3.1 or more and any one of the upper limits described above.
- the second filler component of the curing agent part may include a first filler having a specific gravity of 3 or less, if necessary.
- the lower limit of the specific gravity of the first filler is not particularly limited, but may be about 0.5, 0.6, or 0.7, and the specific gravity of the first filler may be in a range between 3 or less and any one of the lower limits described above. .
- the second filler component of the curing agent part may include one or more thermally conductive fillers.
- the type of filler included in the second filler component may include a metal oxide filler such as aluminum oxide (alumina), magnesium oxide, beryllium oxide, or titanium oxide; metal hydroxide fillers such as aluminum hydroxide or magnesium hydroxide; Nitride fillers, such as boron nitride, silicon nitride, or aluminum nitride; carbide fillers such as silicon carbide; metal fillers such as copper, silver, iron, aluminum or nickel; And it may include one or more selected from the group consisting of a metal alloy filler.
- the shape and size of the third filler are not particularly limited as long as they are used in the art.
- the curing agent part may further include one or two or more additives exemplified below as necessary to secure additional physical properties.
- the additives are sufficient as long as they are generally usable in the art, and are not necessarily limited to the additives exemplified below.
- the curing agent part may further include a plasticizer.
- the type of plasticizer is not particularly limited, but examples include phthalic acid compounds, phosphoric acid compounds, adipic acid compounds, sebacic acid compounds, citric acid compounds, glycolic acid compounds, trimellitic acid compounds, polyester compounds, epoxidized soybean oil, chlorinated Paraffin, chlorinated fatty acid esters, fatty acid compounds, compounds having a saturated aliphatic chain substituted with a sulfonic acid group bound to a phenyl group (eg, LANXESS mesamoll), and vegetable oil may be selected and used.
- a plasticizer is not particularly limited, but examples include phthalic acid compounds, phosphoric acid compounds, adipic acid compounds, sebacic acid compounds, citric acid compounds, glycolic acid compounds, trimellitic acid compounds, polyester compounds, epoxidized soybean oil, chlorinated Paraffin, chlorinated fatty acid esters, fatty acid compounds, compounds having a saturated aliphatic chain substituted with
- the phthalic acid compound is dimethyl phthalate, diethyl phthalate, dibutyl phthalate, dihexyl phthalate, di-n-octyl phthalate, di-2-ethylhexyl phthalate, diisooctyl phthalate, dicapryl phthalate, dinonyl phthalate, diisononyl phthalate, didecyl phthalate, diundecyl phthalate, dilauryl phthalate, ditridecyl phthalate, dibenzyl phthalate, dicyclohexyl phthalate, butyl benzyl phthalate, octyldecyl phthalate, butyl octyl phthalate, octyl benzyl phthalate, n-hexyl n- One or more of decyl phthalate, n-octyl phthalate and n-decyl
- phosphoric acid compound one or more of tricresyl phosphate, trioctyl phosphate, triphenyl phosphate, octyl diphenyl phosphate, cresyl diphenyl phosphate and trichloroethyl phosphate may be used.
- the adipic acid compound is dibutoxyethoxyethyl adipate (DBEEA), dioctyl adipate, diisooctyl adipate, di-n-octyl adipate, didecyl adipate, diisononyl adipate (DINA), One or more of diisodecyl adipate (DIDP), n-octyl n-decyl adipate, n-heptyl adipate and n-nonyl adipate may be used.
- DEEA dibutoxyethoxyethyl adipate
- DINA diisononyl adipate
- DIDP diisodecyl adipate
- n-octyl n-decyl adipate n-heptyl adipate and n-nonyl adipate
- the sebacic acid compound may use at least one of dibutyl sebacate, dioctyl sebacate, diisooctyl sebacate and butyl benzyl.
- the citric acid compound one or more of triethyl citrate, acetyl triethyl citrate, tributyl citrate, acetyl tributyl citrate, and acetyl trioctyl citrate may be used.
- the glycolic acid compound one or more of methyl phthalyl ethyl glycolate, ethyl phthalyl ethyl glycolate, and butyl phthalyl ethyl glycolate may be used.
- the trimellitic acid compound may use at least one of trioctyl trimellitate and tri-n-octyl n-decyl trimellitate.
- the polyester compound is butane diol, ethylene glycol, propane 1,2-diol, propane 1,3 diol, polyethylene glycol, glycerol, a diacid (selected from adipic acid, succinic acid, succinic anhydride) and a hydroxy acid (such as , hydroxystearic acid).
- the curing agent part may include a plasticizer in an amount of 50 parts by weight or more to 200 parts by weight or less based on 100 parts by weight of the isocyanate component.
- the upper limit of the content of the plasticizer may be about 190 parts by weight, 180 parts by weight, 170 parts by weight, 160 parts by weight, 150 parts by weight, 140 parts by weight, 130 parts by weight or 120 parts by weight based on 100 parts by weight of the isocyanate component, and the plasticizer
- the lower limit of the content of may be about 70 parts by weight, 80 parts by weight, or 90 parts by weight based on 60 parts by weight of the isocyanate component.
- the content of the plasticizer is greater than or equal to any one of the lower limits described above, less than or equal to any one of the upper limits described above, or any one of the lower limits described above and any one upper limit of the upper limits described above It may be within the range between
- the curing agent part may further include a dispersing agent.
- the dispersant is, for example, polyamideamine and its salt, polycarboxylic acid and its salt, modified polyurethane, modified polyester, modified poly(meth)acrylate, (meth)acrylic copolymer, naphthalenesulfonic acid formalin Condensates, polyoxyethylene alkyl phosphoric acid esters, polyoxyethylene alkylamines and pigment derivatives may be used, but any dispersant known in the art may be used without limitation.
- the curing agent part is provided with a viscosity modifier, for example, thixotropy, if necessary, to adjust the viscosity, for example, to increase or decrease the viscosity or to adjust the viscosity according to shear force.
- agent, diluent or coupling agent may be further included.
- the thixotropy imparting agent can adjust the viscosity according to the shear force.
- fumed silica and the like can be exemplified.
- the diluent is usually used to lower the viscosity, and various types known in the art can be used without limitation as long as it can exhibit the above function.
- a coupling agent for example, it can be used to improve the dispersibility of a filler component (eg, alumina, etc.), and as long as it can exhibit the above function, various types known in the art are used without limitation. can be used
- the sum of the first filler component of the main part and the second filler component of the curing agent part is 70% by weight or more and 98% by weight or less based on the total weight of the two-component curable composition. may be included within the scope of The lower limit of the sum of the first filler component and the second filler component is 72% by weight, 74% by weight, 76% by weight, 78% by weight, 80% by weight, 82% by weight, 84% by weight based on the total weight of the two-component curable composition.
- the upper limit of the sum of the first filler component and the second filler component is 97% by weight, 96% by weight, 95% by weight, 94% by weight based on the total weight of the two-component curable composition. , 93%, 92% or 91% by weight.
- the sum of the first filler component and the second filler component is more than any one of the lower limits described above, less than or equal to any one of the upper limits described above, or any one of the lower limits described above and the above It may also be within a range between any one of the upper limits described.
- At least one selected from the group consisting of the first filler component of the main part and the second filler component of the curing agent part may include a first filler having a specific gravity of 3 or less.
- the lower limit of the specific gravity of the first filler is not particularly limited, but may be about 0.5, 0.6, or 0.7, and the specific gravity of the first filler may be within a range between 3 or less and any one of the lower limits described above. .
- the first filler may be included in an amount of 5 wt% or more to 60 wt% or less based on the total weight of the two-component curable composition.
- the upper limit of the content of the first filler is 59 wt%, 58 wt%, 57 wt%, 56 wt%, 55 wt%, 54 wt%, 53 wt%, 52 wt%, 51% by weight, 50% by weight, 49% by weight, 48% by weight, 47% by weight, 46% by weight, 45% by weight or 44% by weight, and the lower limit of the content of the first filler is 5.2% by weight or 5.4% by weight.
- the content of the first filler is greater than or equal to any one of the lower limits described above, less than or equal to any one of the upper limits described above, or any one of the lower limits described above and any one of the upper limits described above. It may be within a range between upper limits.
- the content of the first filler when the content of the first filler is less than the above range, it may be difficult to secure flame retardancy without using a flame retardant containing a halogen element and a flame retardant containing a phosphorus (P) element.
- P phosphorus
- by controlling the content of the first filler as described above and combining the above-described polyol and isocyanate compound low specific gravity characteristics and heat dissipation characteristics can be secured at the same time, and according to Mil-Std-883 Method 1010 or JEDEC JESD22-A104 A rapid increase in adhesive strength can be prevented even in the thermal shock test according to
- At least one selected from the group consisting of the first filler component of the main part and the second filler component of the curing agent part may include a second filler having a specific gravity greater than 3.
- the upper limit of the specific gravity of the second filler is not particularly limited, but may be about 30, 28, 26, 24, 22, or 20, and the specific gravity of the second filler is greater than 3 to any one of the upper limits described above. can be within the range of In addition, the specific gravity of the second filler may be within a range between 3.1 or more and any one of the upper limits described above.
- the two-component curable composition according to an example of the present application may include a first filler and a second filler.
- the two-part curable composition may include the second filler in an amount of 100 parts by weight to 2,000 parts by weight based on 100 parts by weight of the first filler.
- the lower limit of the content of the second filler may be about 105 parts by weight, 110 parts by weight, 115 parts by weight, 120 parts by weight or 125 parts by weight compared to 100 parts by weight of the first filler, and the upper limit of the content of the second filler is 1,900 It may be about 1,800 parts by weight, 1,700 parts by weight, 1,600 parts by weight, 1,500 parts by weight, 1,400 parts by weight or 1,300 parts by weight.
- the content of the second filler is more than any one of the lower limits described above, less than or equal to any one of the upper limits described above, or any one of the lower limits described above and any one of the upper limits described above. It may be within a range between upper limits.
- the volume ratio (V A /V B ) of the main part (VA ) and the curing agent part (V B ) may be within a range of 0.5 or more to 2 or less.
- the upper limit of the volume ratio (V A /V B ) may be about 1.8, 1.6, 1.4, or 1.2
- the lower limit of the volume ratio (V A /V B ) may be about 0.6, 0.7, 0.8, 0.9, or 1.
- the volume ratio (V A /V B ) is greater than or equal to any one of the lower limits described above, less than or equal to any one of the upper limits described above, or less than any one of the lower limits described above and the upper limit described above. It may be within a range between any one of the upper limits.
- An apparatus includes a heat generating element and a heat carrier in thermal contact with the heat generating element, and the heat carrier may include a cured product of a curable composition.
- the heat carrier of the device may include a cured product of a two-component curable composition including a main part and a curing agent part. That is, the heat carrier of the device may include at least one selected from the group consisting of a cured product of the curable composition and a two-component curable composition including a main part and a curing agent part.
- Thermal contact a term used in this application, means that the cured material of the curable composition is in direct physical contact with the exothermic element to dissipate heat generated from the exothermic element, or the cured material of the curable composition is in direct physical contact with the exothermic element. Even if there is no direct contact (that is, a separate layer exists between the cured product of the curable composition and the exothermic element), it means that heat generated from the exothermic element is radiated.
- Devices include, for example, an iron, a washing machine, a dryer, a clothes care machine, an electric shaver, a microwave oven, an electric oven, an electric rice cooker, a refrigerator, a dishwasher, an air conditioner, a fan, a humidifier, an air purifier, a mobile phone, and a walkie-talkie.
- TVs, radios, computers, laptops, and other various electrical and electronic products, or batteries such as secondary batteries, and the cured product of the curable composition can dissipate heat generated in the device.
- the curable composition of the present application can be used as a material for connecting battery modules in an electric vehicle battery manufactured by gathering battery cells to form one battery module and forming a battery pack by gathering several battery modules.
- the curable composition of the present application may play a role of dissipating heat generated from the battery cells and fixing the battery cells from external shock and vibration.
- heat generated from the exothermic element may be dissipated through a heat carrier, and the heat may be transferred to a cooling part.
- the cooling portion may be in thermal contact with the heat carrier and may have a lower temperature than that of the exothermic element.
- the cooling portion may refer to a portion having a lower temperature than the temperature of the exothermic element due to a medium such as cooling water, or may refer to an air area lower than the temperature of the exothermic element.
- the present application may provide a curable composition or thermal interface material that exhibits low adhesive strength to a predetermined adherend while having low density and high thermal conductivity.
- the present application also provides a curable composition or thermal interface material that secures excellent flame retardant properties without using halogen flame retardants and phosphorus-based flame retardants or, even if used, minimizes the use ratio, and exhibits ejection property and thixotropy suitable for the process. can do.
- the present application may also provide a product including the curable composition, a cured product of the curable composition, or a thermal interface material.
- Polyol (A) of formula A was prepared in the following manner.
- n and m are each greater than 0, and their sum (n+m) is about 4.8.
- Polycaprolactone polyol Perstorp, Capa 3031
- isononanoic acid a saturated fatty acid
- Capa 3031: isononanoic acid a catalyst
- Ti(II) 2-ethylhexanoate Sigma-Aldrich
- a small amount of xylene, an azeotropic solution was added, the temperature was raised to 200° C., and the reaction was performed for 3 hours or more, and then the pressure was reduced to 80 Torr or less, and xylene and unreacted materials were removed.
- the reactant was filtered after cooling to obtain a target product (compound of Formula A) having a weight average molecular weight of about 876 g/mol and a bifunctional polyol.
- the first filler component included in the main part may be referred to as a filler component (F1)
- the second filler component included in the curing agent part may be referred to as a filler component (F2).
- the mixture of the main part and the curing agent part is indicated as the final curable composition
- the filler components (F1 + F2) included in the final curable composition include the first filler component and the second filler component.
- Polyol component (P), filler component (F1), and plasticizer (Pc, Aekyung Petrochemical Co., diisononyl adipate) were mixed in a weight ratio of 9.8:89.1:1.1 (P:F1:Pc) to prepare the main part (V A ) did
- the polyol component (P) is 9: 1 (A: F-2010) in the weight ratio.
- the filler component (F1) includes spherical alumina (F11) having an average particle diameter of about 70 ⁇ m, spherical alumina (F12) having an average particle diameter of about 20 ⁇ m, and aluminum hydroxide (F13) having an average particle diameter of about 1 ⁇ m. :12:18 (F11:F12:F13) by weight.
- Curing agent by mixing isocyanate component (H, Vencorex Tolonate HDT-LV2), filler component (F2) and plasticizer (Pc, Aekyung Petrochemical Co., diisononyl adipate) in a weight ratio of 3.9:91.7:4.4 (H:F2:Pc) Part (V B ) was prepared.
- H Vencorex Tolonate HDT-LV2
- F2 filler component
- Pc Aekyung Petrochemical Co., diisononyl adipate
- the filler component (F2) is 60: spherical alumina (F21) having an average particle diameter of about 70 ⁇ m, spherical alumina (F22) having an average particle diameter of about 20 ⁇ m and alumina (F23) having an average particle diameter of about 1 ⁇ m: It is mixed in a weight ratio of 10:30 (F21:F22:F23).
- the prepared main part (V A ) and curing agent part (V B ) were added to a static mixer in a volume ratio of 1: 1 (V A : V B ) and mixed to prepare a final curable composition.
- the curable composition contained about 89% by weight of the filler components (F1 + F2) based on the total weight, and about 7.4% by weight of aluminum hydroxide based on the total weight of the curable composition.
- the curable composition contained about 1,107 parts by weight of alumina based on 100 parts by weight of aluminum hydroxide.
- the combined content of halogen and phosphorus (P) element measured by ICP (Inductively Coupled Plasma) according to the physical property measurement method was found to be 0.2% by weight or less based on the total weight of the curable composition.
- Polyol component (P), filler component (F1), and plasticizer (Pc, Aekyung Petrochemical Co., diisononyl adipate) were mixed in a weight ratio of 9.8:89.1:1.1 (P:F1:Pc) to prepare the main part (V A ) did
- the same polyol component (P) as the polyol component (P) of Example 1 was used.
- spherical alumina (F11) having an average particle diameter of about 70 ⁇ m, spherical alumina (F12) having an average particle diameter of about 20 ⁇ m, and aluminum hydroxide (F13) having an average particle diameter of about 1 ⁇ m were 45 : 30:25 (F11:F12:F13) by weight.
- Curing agent by mixing isocyanate component (H, Vencorex Tolonate HDT-LV2), filler component (F2) and plasticizer (Pc, Aekyung Petrochemical Co., diisononyl adipate) in a weight ratio of 3.9:91.7:4.4 (H:F2:Pc) Part (V B ) was prepared.
- H Vencorex Tolonate HDT-LV2
- F2 filler component
- Pc Aekyung Petrochemical Co., diisononyl adipate
- spherical alumina (F21) having an average particle diameter of about 70 ⁇ m, spherical alumina (F22) having an average particle diameter of about 20 ⁇ m, and alumina (F23) having an average particle diameter of about 1 ⁇ m are 40: It is mixed in a weight ratio of 30:30 (F21:F22:F23).
- the prepared main part (V A ) and curing agent part (V B ) were added to a static mixer in a volume ratio of 1: 1 (V A : V B ) and mixed to prepare a final curable composition.
- the curable composition contained about 89% by weight of the filler component (F1 + F2) based on the total weight, and about 8.4% by weight of aluminum hydroxide based on the total weight of the curable composition.
- the curable composition contained about 977 parts by weight of alumina based on 100 parts by weight of aluminum hydroxide.
- ICP Inductively Coupled Plasma
- Polyol component (P), filler component (F1), and plasticizer (Pc, Aekyung Petrochemical Co., diisononyl adipate) were mixed in a weight ratio of 11.6:87.5:0.9 (P:F1:Pc) to prepare the main part (V A ) did
- the same polyol component (P) as the polyol component (P) of Example 1 was used.
- filler component (F1) spherical alumina (F11) having an average particle diameter of about 70 ⁇ m, aluminum hydroxide (F14) having an average particle diameter of about 50 ⁇ m, and aluminum hydroxide (F13) having an average particle diameter of about 1 ⁇ m are 45 : 30:25 (F11:F14:F13) by weight.
- Curing agent by mixing isocyanate component (H, Vencorex Tolonate HDT-LV2), filler component (F2) and plasticizer (Pc, Aekyung Petrochemical Co., diisononyl adipate) in a weight ratio of 4:91.7:4.3 (H:F2:Pc) Part (V B ) was prepared.
- H Vencorex Tolonate HDT-LV2
- F2 filler component
- Pc Aekyung Petrochemical Co., diisononyl adipate
- spherical alumina (F21) having an average particle diameter of about 70 ⁇ m, spherical alumina (F22) having an average particle diameter of about 20 ⁇ m, and alumina (F23) having an average particle diameter of about 1 ⁇ m are 40: It is mixed in a weight ratio of 30:30 (F21:F22:F23).
- the prepared main part (V A ) and curing agent part (V B ) were added to a static mixer in a volume ratio of 1: 1 (V A : V B ) and mixed to prepare a final curable composition.
- the curable composition contained about 89% by weight of the filler components (F1 + F2) based on the total weight, and about 20.7% by weight of aluminum hydroxide based on the total weight of the curable composition.
- the curable composition contained about 332 parts by weight of alumina based on 100 parts by weight of aluminum hydroxide.
- ICP Inductively Coupled Plasma
- the main part (V A ) was prepared by mixing the polyol component (P), the filler component (F1), and the plasticizer (Pc, Aekyung Petrochemical Co., diisononyl adipate) in a weight ratio of 11.0:88.2:0.8 (P:F1:Pc) did
- the same polyol component (P) as the polyol component (P) of Example 1 was used.
- filler component (F1) spherical alumina (F11) having an average particle diameter of about 70 ⁇ m, aluminum hydroxide (F15) having an average particle diameter of about 17 ⁇ m, and aluminum hydroxide (F13) having an average particle diameter of about 1 ⁇ m were mixed at 60 :20:20 (F11:F15:F13) by weight.
- Curing agent by mixing isocyanate component (H, Vencorex Tolonate HDT-LV2), filler component (F2) and plasticizer (Pc, Aekyung Petrochemical Co., diisononyl adipate) in a weight ratio of 5.2:89.9:4.9 (H:F2:Pc) Part (V B ) was prepared.
- H Vencorex Tolonate HDT-LV2
- F2 filler component
- Pc Aekyung Petrochemical Co., diisononyl adipate
- filler component (F2) As the filler component (F2), spherical alumina (F21) having an average particle diameter of about 70 ⁇ m, aluminum hydroxide (F24) having an average particle diameter of about 17 ⁇ m, and aluminum hydroxide (F25) having an average particle diameter of about 1 ⁇ m were mixed at 60 :20:20 (F21:F24:F25) by weight.
- the prepared main part (V A ) and curing agent part (V B ) were added to a static mixer in a volume ratio of 1: 1 (V A : V B ) and mixed to prepare a final curable composition.
- the curable composition contained about 88% by weight of the filler components (F1 + F2) based on the total weight, and about 35.4% by weight of aluminum hydroxide based on the total weight of the curable composition.
- the curable composition contained about 150 parts by weight of alumina based on 100 parts by weight of aluminum hydroxide.
- ICP Inductively Coupled Plasma
- V A A main part (V A ) was prepared by mixing a polyol component (P), a filler component (F1), and a plasticizer (Pc, Aekyung Petrochemical Co., diisononyl adipate) in a weight ratio of 11.6:87.7:0.7 (P:F1:Pc) did
- the same polyol component (P) as the polyol component (P) of Example 1 was used.
- filler component (F1) spherical alumina (F11) having an average particle diameter of about 70 ⁇ m, aluminum hydroxide (F15) having an average particle diameter of about 17 ⁇ m, and aluminum hydroxide (F13) having an average particle diameter of about 1 ⁇ m are 50 :30:20 (F11:F15:F13) by weight.
- Curing agent by mixing isocyanate component (H, Vencorex Tolonate HDT-LV2), filler component (F2) and plasticizer (Pc, Aekyung Petrochemical Co., diisononyl adipate) in a weight ratio of 5.5:89.4:5.1 (H:F2:Pc) Part (V B ) was prepared.
- H Vencorex Tolonate HDT-LV2
- F2 filler component
- Pc Aekyung Petrochemical Co., diisononyl adipate
- filler component (F2) As the filler component (F2), spherical alumina (F21) having an average particle diameter of about 70 ⁇ m, aluminum hydroxide (F24) having an average particle diameter of about 17 ⁇ m, and aluminum hydroxide (F25) having an average particle diameter of about 1 ⁇ m were 50 :30:20 (F21:F24:F25) by weight.
- the prepared main part (V A ) and curing agent part (V B ) were added to a static mixer in a volume ratio of 1: 1 (V A : V B ) and mixed to prepare a final curable composition.
- the curable composition contained about 88% by weight of the filler components (F1 + F2) based on the total weight, and about 43.9% by weight of aluminum hydroxide based on the total weight of the curable composition.
- the curable composition contained about 100 parts by weight of alumina based on 100 parts by weight of aluminum hydroxide.
- ICP Inductively Coupled Plasma
- Polyol component (P), filler component (F1), plasticizer (Pc, Aekyung Petrochemical Co., Ltd., diisononyl adipate) and phosphorus (P) element-containing solid flame retardant (SF, Chempia Co., Ltd., X-GUARD FR-119L) were added to 8.5 :88.9:1.2:1.4 (P:F1:Pc:SF) was mixed in a weight ratio to prepare the main part (V A ).
- the same polyol component (P) as the polyol component (P) of Example 1 was used.
- the filler component (F1) includes spherical alumina (F11) having an average particle diameter of about 70 ⁇ m, spherical alumina (F12) having an average particle diameter of about 20 ⁇ m and alumina (F16) having an average particle diameter of about 1 ⁇ m, 60: It is mixed in a weight ratio of 20:20 (F11:F12:F16).
- Isocyanate component H, Vencorex Co., Ltd. Tolonate HDT-LV2
- filler component F2
- plasticizer Pc, Aekyung Petrochemical Co., Ltd., diisononyl adipate
- SF phosphorus element-containing solid flame retardant
- the filler component (F2) is 60: spherical alumina (F21) having an average particle diameter of about 70 ⁇ m, spherical alumina (F22) having an average particle diameter of about 20 ⁇ m and alumina (F23) having an average particle diameter of about 1 ⁇ m: It is mixed in a weight ratio of 20:20 (F21:F22:F23).
- the prepared main part (V A ) and curing agent part (V B ) were added to a static mixer in a volume ratio of 1: 1 (V A : V B ) and mixed to prepare a final curable composition.
- the curable composition contained about 88% by weight of the filler component (F1 + F2) based on the total weight.
- the curable composition contained about 1.52% by weight of the solid flame retardant containing elemental phosphorus (P) based on the total weight.
- the combined content of halogen and phosphorus (P) element was found to be about 0.35% by weight or more based on the total weight of the curable composition.
- Polyol component (P), filler component (F1), and plasticizer (Pc, Aekyung Petrochemical Co., diisononyl adipate) were mixed in a weight ratio of 9.8:89.1:1.1 (P:F1:Pc) to prepare the main part (V A ) did
- the same polyol component (P) as the polyol component (P) of Example 1 was used.
- the filler component (F1) includes spherical alumina (F11) having an average particle diameter of about 70 ⁇ m, spherical alumina (F12) having an average particle diameter of about 20 ⁇ m, and aluminum hydroxide (F13) having an average particle diameter of about 1 ⁇ m. :22:11 (F11:F12:F13) by weight.
- Curing agent by mixing isocyanate component (H, Vencorex Tolonate HDT-LV2), filler component (F2) and plasticizer (Pc, Aekyung Petrochemical Co., diisononyl adipate) in a weight ratio of 3.9:91.7:4.4 (H:F2:Pc) Part (V B ) was prepared.
- H Vencorex Tolonate HDT-LV2
- F2 filler component
- Pc Aekyung Petrochemical Co., diisononyl adipate
- the filler component (F2) is 60: spherical alumina (F21) having an average particle diameter of about 70 ⁇ m, spherical alumina (F22) having an average particle diameter of about 20 ⁇ m and alumina (F23) having an average particle diameter of about 1 ⁇ m: It is mixed in a weight ratio of 20:20 (F21:F22:F23).
- the prepared main part (V A ) and curing agent part (V B ) were added to a static mixer in a volume ratio of 1: 1 (V A : V B ) and mixed to prepare a final curable composition.
- the curable composition contained about 89% by weight of the filler components (F1 + F2) based on the total weight, and about 4.6% by weight of aluminum hydroxide based on the total weight of the curable composition.
- the curable composition contained about 1,848 parts by weight of alumina based on 100 parts by weight of aluminum hydroxide.
- ICP Inductively Coupled Plasma
- V A A main part (V A ) was prepared by mixing a polyol component (P), a filler component (F1), and a plasticizer (Pc, Aekyung Petrochemical Co., diisononyl adipate) in a weight ratio of 11.7:87.1:1.2 (P:F1:Pc) did
- the polyol component (P) of Preparation Example 1 was used as the polyol component (P).
- filler component (F1) spherical alumina (F11) having an average particle diameter of about 70 ⁇ m, aluminum hydroxide (F14) having an average particle diameter of about 50 ⁇ m, and aluminum hydroxide (F13) having an average particle diameter of about 1 ⁇ m are 45 : 30:25 (F11:F14:F13) by weight.
- Curing agent by mixing isocyanate component (H, Vencorex Tolonate HDT-LV2), filler component (F2) and plasticizer (Pc, Aekyung Petrochemical Co., diisononyl adipate) in a weight ratio of 4.2:91.6:4.2 (H:F2:Pc) Part (V B ) was prepared.
- H Vencorex Tolonate HDT-LV2
- F2 filler component
- Pc Aekyung Petrochemical Co., diisononyl adipate
- spherical alumina (F21) having an average particle diameter of about 70 ⁇ m, spherical alumina (F22) having an average particle diameter of about 20 ⁇ m, and alumina (F23) having an average particle diameter of about 1 ⁇ m are 40: It is mixed in a weight ratio of 30:30 (F21:F22:F23).
- the prepared main part (V A ) and curing agent part (V B ) were added to a static mixer in a volume ratio of 1: 1 (V A : V B ) and mixed to prepare a final curable composition.
- the curable composition contained about 88% by weight of the filler component (F1 + F2) based on the total weight, and about 20% by weight of aluminum hydroxide based on the total weight of the curable composition.
- the curable composition contained about 341 parts by weight of alumina based on 100 parts by weight of aluminum hydroxide.
- ICP Inductively Coupled Plasma
- V A A main part (V A ) was prepared by mixing a polyol component (P), a filler component (F1), and a plasticizer (Pc, Aekyung Petrochemical Co., diisononyl adipate) in a weight ratio of 12.3:87.1:0.6 (P:F1:Pc) did
- the polyol component (P) is 8: 2 (A: F-2010) by weight.
- filler component (F1) spherical alumina (F11) having an average particle diameter of about 70 ⁇ m, aluminum hydroxide (F14) having an average particle diameter of about 50 ⁇ m, and aluminum hydroxide (F13) having an average particle diameter of about 1 ⁇ m are 45 : 30:25 (F11:F14:F13) by weight.
- Curing agent by mixing isocyanate component (H, Vencorex Tolonate HDT-LV2), filler component (F2) and plasticizer (Pc, Aekyung Petrochemical Co., diisononyl adipate) in a weight ratio of 3.8:91.7:4.5 (H:F2:Pc) Part (V B ) was prepared.
- H Vencorex Tolonate HDT-LV2
- F2 filler component
- Pc Aekyung Petrochemical Co., diisononyl adipate
- spherical alumina (F21) having an average particle diameter of about 70 ⁇ m, spherical alumina (F22) having an average particle diameter of about 20 ⁇ m, and alumina (F23) having an average particle diameter of about 1 ⁇ m are 40: It is mixed in a weight ratio of 30:30 (F21:F22:F23).
- the prepared main part (V A ) and curing agent part (V B ) were added to a static mixer in a volume ratio of 1: 1 (V A : V B ) and mixed to prepare a final curable composition.
- the curable composition contained about 88% by weight of the filler component (F1 + F2) based on the total weight, and about 20% by weight of aluminum hydroxide based on the total weight of the curable composition.
- the curable composition contained about 341 parts by weight of alumina based on 100 parts by weight of aluminum hydroxide.
- ICP Inductively Coupled Plasma
- Polyol component (P), filler component (F1), and plasticizer (Pc, Aekyung Petrochemical Co., diisononyl adipate) were mixed in a weight ratio of 11.6:87.5:0.9 (P:F1:Pc) to prepare the main part (V A ) did
- polyol component (P) a trifunctional polyester polyol (supplier: Kuraray, product name: F-2010, weight average molecular weight: 2,000 g/mol) was used.
- filler component (F1) spherical alumina (F11) having an average particle diameter of about 70 ⁇ m, aluminum hydroxide (F14) having an average particle diameter of about 50 ⁇ m, and aluminum hydroxide (F13) having an average particle diameter of about 1 ⁇ m are 45 : 30:25 (F11:F14:F13) by weight.
- Curing agent by mixing isocyanate component (H, Vencorex Tolonate HDT-LV2), filler component (F2) and plasticizer (Pc, Aekyung Petrochemical Co., diisononyl adipate) in a weight ratio of 4:91.7:4.3 (H:F2:Pc) Part (V B ) was prepared.
- H Vencorex Tolonate HDT-LV2
- F2 filler component
- Pc Aekyung Petrochemical Co., diisononyl adipate
- spherical alumina (F21) having an average particle diameter of about 70 ⁇ m, spherical alumina (F22) having an average particle diameter of about 20 ⁇ m, and alumina (F23) having an average particle diameter of about 1 ⁇ m are 40: It is mixed in a weight ratio of 30:30 (F21:F22:F23).
- the prepared main part (V A ) and curing agent part (V B ) were added to a static mixer in a volume ratio of 1: 1 (V A : V B ) and mixed to prepare a final curable composition.
- the curable composition contained about 88% by weight of the filler component (F1 + F2) based on the total weight, and about 20% by weight of aluminum hydroxide based on the total weight of the curable composition.
- the curable composition contained about 341 parts by weight of alumina based on 100 parts by weight of aluminum hydroxide.
- ICP Inductively Coupled Plasma
- Viscosity and thixotropic index T.I.
- the viscosity of the main part and the curing agent part of Examples and Comparative Examples was measured by using a viscosity meter (manufacturer: Brookfield, model name: DV3THB-CP) and a spindle CPA-52Z, at a shear rate of 2.4 s -1 and rotated for 180 seconds, and then measured as the last viscosity measurement value.
- the viscosity was measured at 25 °C.
- a plate was mounted on the plate connection part of the viscometer, and a constant gap between the spindle and the plate was adjusted through a control lever.
- the plate was separated, and about 0.5 mL of the measurement target was applied to the center of the separated plate.
- the plate coated with the measurement object is again mounted on the plate connection part of the viscometer, and after waiting until the torque value becomes 0, the shear rate is set to 2.4 s -1 and rotated for 180 seconds to measure the viscosity was measured, and the final viscosity value was measured as the viscosity of the measurement object.
- the measurement target means a subject part or a curing agent part.
- the viscosity of the measurement object is measured in the same manner as the above viscosity measurement method, but the shear rate is 0.24 s -1 and 2.4 s -1 respectively, and the viscosity is measured, and then the thixotropic index (TI) is calculated according to the following formula measured.
- V 1 is the viscosity of the measuring object measured under conditions of 25°C and 0.24 s -1
- V 2 is the viscosity of the measuring object measured under the conditions of 25°C and 2.4 s -1 .
- Each of the final curable compositions prepared in Examples and Comparative Examples was cured at about 25° C. for about 24 hours to form a cured product, and a sample was prepared by cutting it into pieces, and then a pycnometer was used for the sample.
- the specific gravity was measured at 25 ° C.
- Specific gravity is measured based on the density (1 g/cm 3 ) of water measured at 1 atm and 4° C. and has a dimensionless unit.
- Thermal conductivity was measured using the hot disk method. Specifically, the thermal conductivity was obtained by curing each of the final curable compositions prepared in Examples and Comparative Examples in a disk-shaped mold having a diameter of about 4 cm and a thickness of about 5 mm at about 25 ° C. for 24 hours. As a cargo sample, it was measured with a thermal constant analyzer according to the ISO 22007-2 standard along the thickness direction of the sample. As stipulated in the above standard (ISO 22007-2), Hot Disk equipment is a device that can check thermal conductivity by measuring temperature change (electrical resistance change) while the sensor in which the nickel wire has a double spiral structure is heated. Thermal conductivity was measured according to the standard.
- Each of the final curable compositions prepared in Examples and Comparative Examples was cured at about 25 ° C. for about 24 hours to form a cured product having a width of 13 mm, a length of 125 mm and a thickness of 2 mm, and the resulting cured product was measured at UL94V It was measured according to the standard. If the result measured according to the UL94V measurement standard was V-0 grade, it was evaluated as PASS, and in the case of other grades, it was evaluated as NG.
- Specimens prepared by attaching a polyethylene terephthalate (PET) film and an aluminum plate as adherends were evaluated.
- a film having a width of about 10 mm and a length of about 200 mm was used as the PET film, and a plate having a width and a length of about 100 mm, respectively, was used as the aluminum plate.
- the specimen is coated with the final curable composition according to Examples or Comparative Examples on the entire surface of the aluminum plate (applied so that the thickness after curing is about 2 mm), and the PET film is adhered to the layer of the curable composition. It was prepared by maintaining at about 25 ° C. for about 24 hours. At this time, about 100 mm of the entire width and length of the PET film was attached to the aluminum plate through the curable composition.
- Adhesion to the polyester was measured while the PET film was peeled from the aluminum plate in the longitudinal direction while the aluminum plate was fixed on the specimen.
- the peeling was performed at a peeling speed of about 0.5 mm/min and a peeling angle of about 180 degrees until the PET film was completely peeled off.
- Each final curable composition according to Examples or Comparative Examples was coated in the center of an aluminum substrate having a horizontal and vertical length of 2 cm and 7 cm, respectively, so that the width was 2 cm and the length was about 2 cm, and then the coating layer was coated in the horizontal and vertical directions.
- An aluminum substrate having a length of 2 cm and 7 cm was attached, and the curable composition was cured by maintaining that state. The curing was performed at about 25° C. for about 24 hours.
- the two aluminum substrates were attached to form an angle of 90 degrees to each other.
- the lower aluminum substrate was pressed at a speed of 0.5 mm/min to measure the force while the lower aluminum substrate was separated, and the maximum force measured in the process was expressed as the area of the specimen.
- the adhesive strength to aluminum was obtained by dividing.
- Shore OO hardness of the cured product of each final curable composition according to Examples or Comparative Examples was measured according to ASTM D 2240 standard. It was performed using an ASKER durometer hardness device, and the initial hardness was measured by applying a load of 1 kg or more (about 1.5 kg) to the surface of the cured product in the form of a film, and after 15 seconds, the hardness was evaluated by confirming the stabilized measured value. did The cured product was formed by holding the final curable composition at about 25° C. for about 24 hours.
- the radius of curvature of the cured product of each final curable composition according to Examples or Comparative Examples was evaluated as a cured product having a width of 1 cm, a length of 10 cm, and a thickness of 2 mm.
- the radius of curvature is the minimum radius of a cylinder at which cracks do not occur in the hardened body when the hardened body is attached to cylinders having various radii and bent along the longitudinal direction.
- the cured product was formed by holding the final curable composition at about 25° C. for about 24 hours.
- Each final curable composition according to Examples or Comparative Examples was applied to an aluminum plate to have a square shape with a width of 8 cm and a length of 8 cm and a thickness of about 2 mm. Thereafter, the applied curable composition was cured by maintaining at about 25° C. for about 24 hours. Next, module workability was evaluated according to [module workability evaluation criteria] while the formed cured product was removed from the aluminum plate.
- the average particle diameter of the filler is the D50 particle diameter of the filler, which is the particle diameter measured by Marvern's MASTERSIZER3000 equipment in accordance with the ISO-13320 standard. Distilled water was used as a solvent during the measurement. The incident laser is scattered by the fillers dispersed in the solvent, and the intensity and direction value of the scattered laser varies depending on the size of the filler. By analyzing this using the Mie theory, the D50 particle diameter can be obtained. . Through the above analysis, the distribution is obtained through conversion to the diameter of a sphere having the same volume as the dispersed filler, and through this, the D50 value, which is the median value of the distribution, can be obtained to evaluate the particle size.
- the weight average molecular weight (Mw) was measured using GPC (Gel permeation chromatography). Specifically, for the weight average molecular weight (Mw), put the sample to be analyzed in a 5 mL vial, dilute with a THF (tetrahydrofuran) solvent to a concentration of about 1 mg/mL, and then prepare a standard sample for calibration and an analysis sample. It can be filtered and measured through a syringe filter (pore size: 0.45 ⁇ m). ChemStation of Agilent technologies was used as an analysis program, and the weight average molecular weight (Mw) can be obtained by comparing the elution time of the sample with the calibration curve.
- GPC Gel permeation chromatography
- Standard samples using polystyrene (MP: 3900000, 723000, 316500, 52200, 31400, 7200, 3940, 485)
- a sample weighing 0.1 g of each of the final curable compositions prepared in the above Examples and Comparative Examples was placed in a vial and 1 mL of nitric acid was added thereto. Thereafter, a small amount of hydrogen peroxide was added to the vial, and the sample was dissolved by heating on a hot plate. When the sample was completely dissolved and had a transparent color, tertiary ultrapure water was added to the total volume to 10 mL to prepare a sample for analysis.
- the analysis sample was measured for the contents of halogen and phosphorus elements through ICP-OES (Inductively Coupled Plasma-Optical Emission Spectrometer) analysis, and the analysis conditions are as follows. The content of halogen and elemental phosphorus measured according to the analysis may be measured separately, and the combined content of elemental halogen and phosphorus may be measured by summing them.
- ICP-OES Inductively Coupled Plasma-Optical Emission Spectrometer
- Examples 1 to 5 have appropriate viscosity and thixotropic index.
- Examples 1 to 5 have low specific gravity characteristics and excellent thermal conductivity, and excellent flame retardancy is ensured without adding a phosphorus or halogen-based flame retardant.
- Examples 1 to 5 have low adhesion to polyester and adhesion to aluminum suitable for the purpose of the present application.
- Examples 1 to 5 have surface hardness suitable for the purpose of the present application, are flexible, and have excellent workability.
- Comparative Example 1 was shown to have a relatively high specific gravity and poor flame retardancy. In addition, Comparative Example 1 exhibited relatively low thermal conductivity despite the use of an excessive amount of alumina due to the weakening of heat dissipation characteristics due to the use of a phosphorus-based flame retardant.
- Comparative Example 2 was found to have no flame retardancy by partially burning the clamp when measured according to the UL94V measurement standard because the content of aluminum hydroxide was small compared to the total composition.
- aluminum hydroxide is included within the range specified in the present application, and in particular, when comparing Example 1 and Comparative Example 2, the difference in flame retardant properties is remarkable. This can be seen as indicating that there is a critical significance for the content of aluminum hydroxide.
- Comparative Example 2 it can be seen that adhesive force not suitable for the purpose of the present application was developed between the PET and the aluminum plate due to the imbalance of the combination between the filler component and the polyol and isocyanate components in the composition.
- Comparative Examples 3 and 4 do not combine the polyol component as shown in the present application, it can be seen that the adhesion to aluminum or PET is not suitable for the purpose of the present application.
- Comparative Example 4 did not combine the polyol component as shown in the present application, so the viscosity of the main part and the curing agent part was high, so it was not suitable for the process.
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Abstract
Description
구분 | 주제 파트 | 경화제 파트 | ||
상온 점도(kcP) | 요변 지수 | 상온 점도(kcP) | 요변 지수 | |
실시예 1 | 231 | 4.0 | 273 | 2.8 |
실시예 2 | 144 | 3.2 | 191 | 6.2 |
실시예 3 | 284 | 3.5 | 201 | 6.6 |
실시예 4 | 213 | 2.7 | 135 | 5.1 |
실시예 5 | 260 | 2.7 | 143 | 6.5 |
비교예 1 | 286 | 3.8 | 221 | 4.1 |
비교예 2 | 139 | 3.3 | 160 | 5.6 |
비교예 3 | 282 | 3.3 | 145 | 5.4 |
비교예 4 | 425 | 3.2 | 391 | 2.5 |
비교예 5 | 배합 불가 |
구분 | 비중 | 열전도도(W/mK) | 난연성 평가 | 폴리에스테르에 대한 접착력(gf/cm) | 알루미늄에 대한 접착력 (N/mm2) |
쇼어 OO 경도 | 곡률 반경 (mm) |
모듈 작업성 |
실시예 1 | 2.93 | 3.114 | PASS | 99 | 0.04 | 86 | 9 | PASS |
실시예 2 | 2.93 | 3.095 | PASS | 91 | 0.077 | 85 | 8 | PASS |
실시예 3 | 2.73 | 3.000 | PASS | 93 | 0.063 | 85 | 7 | PASS |
실시예 4 | 2.52 | 2.768 | PASS | 84 | 0.038 | 85 | 7 | PASS |
실시예 5 | 2.42 | 2.604 | PASS | 64 | 0.086 | 83 | 8 | PASS |
비교예 1 | 3.22 | 2.767 | NG (V-1 등급) |
53 | 0.058 | 86 | 9 | PASS |
비교예 2 | 2.97 | 2.772 | NG (난연성 없음) |
101 | 0.139 | 88 | 10 | PASS |
비교예 3 | 2.73 | 2.799 | PASS | 61 | 0.112 | 80 | 8 | PASS |
비교예 4 | 2.73 | 2.820 | PASS | 139 | 0.054 | 90 | 9 | PASS |
비교예 5 | 배합 불가 |
Claims (20)
- 폴리올 성분; 및필러 성분을 포함하고,비중이 3 이하이고, 열전도도가 2 W/mK 이상이며, 할로겐 및 인 원소의 합산 함량이 0.3 중량% 이하이면서, V-0 등급 이상의 난연성을 나타내는 경화물을 형성하는 경화성 조성물.
- 제 1 항에 있어서, 알루미늄에 대한 접착력이 0.1 N/mm2 이하이고, 폴리에스테르에 대한 접착력이 100 gf/cm 이하인 경화물을 형성하는 경화성 조성물.
- 제1항에 있어서, 2.4 s-1의 전단 속도 조건에서 측정한 점도가 25℃에서 400 kcP 이하인 경화성 조성물.
- 제1항에 있어서, 폴리올 성분은 2관능 폴리올인 제 1 폴리올과 3관능 이상의 폴리올인 제 2 폴리올을 포함하는 경화성 조성물.
- 제 4 항에 있어서, 제 1 폴리올 또는 제 2 폴리올은, 탄소 원자수가 3개 이상인 분지쇄형 탄화수소 사슬을 말단에 포함하는 경화성 조성물.
- 제4항에 있어서, 제1 폴리올 또는 제2 폴리올은, 폴리카프로락톤 폴리올 단위 또는 알칸 디올 단위; 폴리올 단위 및 디카복실산 단위를 가지는 폴리올이고,상기 폴리올 단위는 3개 내지 10개의 히드록시기로 치환된 탄소수 1 내지 20의 알칸인 폴리올에서 유래된 단위인 경화성 조성물.
- 제4항에 있어서, 제1 폴리올 및 제2 폴리올은 폴리에스테르 폴리올인 경화성 조성물.
- 제4항에 있어서, 폴리올 성분은 제1 폴리올을 상기 폴리올 성분 전체 중량 대비 80 중량% 초과로 포함하는 경화성 조성물.
- 제4항에 있어서, 제1 폴리올(PA) 및 제2 폴리올(PB)의 중량 비율(PA/PB)이 5 이상인 경화성 조성물.
- 제4항에 있어서, 제1 폴리올은 100 g/mol 내지 2,000 g/mol의 중량평균분자량을 가지고, 제2 폴리올은 500 g/mol 내지 5,000 g/mol의 중량평균분자량을 가지는 경화성 조성물.
- 제1항에 있어서, 필러 성분을 전체 중량 대비 70 중량% 이상으로 포함하는 경화성 조성물.
- 제 1 항에 있어서, 필러 성분은, 비중이 3 이하인 제 1 필러 및 비중이 3 초과인 제 2 필러를 포함하는 경화성 조성물.
- 제11항에 있어서, 제 1 필러는 금속 수산화물인 경화성 조성물.
- 제11항에 있어서, 제 1 필러를 전체 중량 대비 10 중량% 이상으로 포함하는 경화성 조성물.
- 제11항에 있어서, 제 2 필러는, 산화 알루미늄, 산화 마그네슘, 산화 베릴륨, 산화 티탄, 질화 규소, 질화 알루미늄, 탄화 규소, 구리, 은, 철 및 티탄으로 이루어진 군에서 선택된 하나 이상을 포함하는 경화성 조성물.
- 제11항에 있어서, 필러 성분은 제 2 필러를 제 1 필러의 100 중량부 대비 50 내지 800 중량부의 범위 내로 포함하는 경화성 조성물.
- 폴리올 성분 및 제1 필러 성분을 포함하는 주제 파트; 및이소시아네이트 성분 및 제2 필러 성분을 포함하는 경화제 파트를 포함하고,할로겐 및 인의 합산 함량이 0.3 중량% 이하이면서, V-0 등급 이상의 난연성을 나타내고, 알루미늄에 대한 접착력이 0.1 N/mm2 이하인 경화물을 형성하는 2액형 경화성 조성물.
- 제 17 항에 있어서, 제1 필러 성분 및 제2 필러 성분으로 이루어진 군에서 선택된 하나 이상은 비중이 3 이하인 제 1 필러를 포함하고,상기 제 1 필러를 전체 중량 대비 5 중량% 이상으로 포함하는 경화성 조성물.
- 제17항에 있어서, 이소시아네이트 성분은 비방향족 이소시아네이트 화합물인 경화성 조성물.
- 발열성 소자 및 상기 발열성 소자와 열적 접촉하는 열 전달체를 포함하고,상기 열 전달체는 제1항에 따른 경화성 조성물의 경화물 및 제17항에 따른 2액형 경화성 조성물의 경화물로 이루어진 군에서 선택된 하나 이상을 포함하는 장치.
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JP2013018988A (ja) * | 2012-09-11 | 2013-01-31 | Dai Ichi Kogyo Seiyaku Co Ltd | ポリウレタン樹脂組成物及びポリウレタン樹脂 |
KR20160105354A (ko) | 2015-02-27 | 2016-09-06 | 주식회사 엘지화학 | 배터리 모듈 |
US20170204310A1 (en) * | 2016-01-19 | 2017-07-20 | H.B. Fuller Company | One-part polyurethane adhesive composition, method of making a laminate, and laminate |
KR20210021927A (ko) * | 2019-08-19 | 2021-03-02 | 주식회사 엘지화학 | 수지 조성물 |
KR20210071563A (ko) * | 2019-12-06 | 2021-06-16 | 주식회사 엘지화학 | 이액형 수지 조성물 |
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KR20040038620A (ko) * | 2002-10-31 | 2004-05-08 | 산요덴키가부시키가이샤 | 팩전지와 그 제조방법 |
JP2013018988A (ja) * | 2012-09-11 | 2013-01-31 | Dai Ichi Kogyo Seiyaku Co Ltd | ポリウレタン樹脂組成物及びポリウレタン樹脂 |
KR20160105354A (ko) | 2015-02-27 | 2016-09-06 | 주식회사 엘지화학 | 배터리 모듈 |
US20170204310A1 (en) * | 2016-01-19 | 2017-07-20 | H.B. Fuller Company | One-part polyurethane adhesive composition, method of making a laminate, and laminate |
KR20210021927A (ko) * | 2019-08-19 | 2021-03-02 | 주식회사 엘지화학 | 수지 조성물 |
KR20210071563A (ko) * | 2019-12-06 | 2021-06-16 | 주식회사 엘지화학 | 이액형 수지 조성물 |
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