WO2013022205A2 - 알킬 (메트)아크릴레이트계 열가소성 수지 조성물, 및 내스크래치성과 황색도가 조절된 열가소성 수지 - Google Patents
알킬 (메트)아크릴레이트계 열가소성 수지 조성물, 및 내스크래치성과 황색도가 조절된 열가소성 수지 Download PDFInfo
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- WO2013022205A2 WO2013022205A2 PCT/KR2012/006012 KR2012006012W WO2013022205A2 WO 2013022205 A2 WO2013022205 A2 WO 2013022205A2 KR 2012006012 W KR2012006012 W KR 2012006012W WO 2013022205 A2 WO2013022205 A2 WO 2013022205A2
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
- C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
- C08L33/10—Homopolymers or copolymers of methacrylic acid esters
- C08L33/12—Homopolymers or copolymers of methyl methacrylate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F279/00—Macromolecular compounds obtained by polymerising monomers on to polymers of monomers having two or more carbon-to-carbon double bonds as defined in group C08F36/00
- C08F279/02—Macromolecular compounds obtained by polymerising monomers on to polymers of monomers having two or more carbon-to-carbon double bonds as defined in group C08F36/00 on to polymers of conjugated dienes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F279/00—Macromolecular compounds obtained by polymerising monomers on to polymers of monomers having two or more carbon-to-carbon double bonds as defined in group C08F36/00
- C08F279/02—Macromolecular compounds obtained by polymerising monomers on to polymers of monomers having two or more carbon-to-carbon double bonds as defined in group C08F36/00 on to polymers of conjugated dienes
- C08F279/04—Vinyl aromatic monomers and nitriles as the only monomers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
- C08L33/14—Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur, or oxygen atoms in addition to the carboxy oxygen
- C08L33/16—Homopolymers or copolymers of esters containing halogen atoms
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/04—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to rubbers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L55/00—Compositions of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08L23/00 - C08L53/00
- C08L55/02—ABS [Acrylonitrile-Butadiene-Styrene] polymers
Definitions
- the present invention relates to an alkyl (meth) acrylate-based thermoplastic resin composition, and a thermoplastic resin with a controlled scratch resistance and yellowness, and lowers the total content of the vinyl cyanide monomer included in the resin composition to a level not achieved in the prior art. It is possible to provide improved scratch resistance and low yellowness while maintaining transparency, flowability and impact strength, and to provide an alkyl (meth) acrylate-based thermoplastic resin composition and a thermoplastic resin suitable for use in housing applications of electrical and electronic products. will be.
- ABS resin composed of acrylonitrile-butadiene-styrene is a typical resin with functional and general purpose, and has excellent properties such as impact strength, tensile strength, elastic modulus, flame retardancy, and so on. It is widely used. However, it cannot be applied to parts that have transparency and require transparency.
- Korean Patent Application No. 10-2001-0044512 discloses a thermoplastic transparent resin composition having good impact resistance and transparency by controlling a refractive index between polybutadiene rubber particles and methyl methacrylate-styrene-acrylonitrile copolymer resin.
- PC polycarbonate
- PMMA impact polymethyl methacrylate
- the polymethyl methacrylate (PMMA) resin was excellent in transparency, but there was a problem that the impact characteristics, injection molding is reduced.
- the present invention to overcome the above-mentioned problems, it is characterized in that the impact resistance and transparency and low yellowness, more specifically, the transparent housing of the electrical and electronic products to have a clear and clear feeling, such as high surface hardness and glass It is an object to provide an alkyl (meth) acrylate-based thermoplastic resin composition and a thermoplastic resin suitable for use as.
- a composition comprising a bulk polymer and a graft copolymer each containing an alkyl (meth) acrylate monomer, wherein the composition is composed of 70 to 90% by weight of the bulk polymer and 30 to 10% by weight of the graft copolymer,
- It includes a vinyl cyan monomer in the acrylic graft copolymer, characterized in that the vinyl cyan monomer is included to 0.01 to 3% by weight based on the total weight of the composition.
- thermoplastic resin of the present invention is provided from the above-mentioned thermoplastic resin composition,
- thermoplastic resin obtained by injection molding the extruded pellet of the thermoplastic resin composition is characterized in that it is applied to housing applications of electrical and electronic products with a total transmittance of 89 or more and a haze of 3.0 or less.
- thermoplastic resin composition according to the present invention will be described in detail with reference to the thermoplastic resin obtained therefrom.
- a composition comprising a bulk polymer and a graft copolymer each containing an alkyl (meth) acrylate monomer, wherein the composition is 70 to 90% by weight of the bulk polymer and 30 to 10% by weight of the graft copolymer.
- the graft copolymer comprises a vinyl cyan monomer, characterized in that it comprises the vinyl cyan monomer to be 0.01 to 3% by weight based on the total weight of the composition.
- the content of the vinyl cyan monomer may be added to amorphous transparent thermoplastic resins such as polyalkyl (meth) acrylate, alkyl (meth) acrylate-styrene copolymer, polycarbonate, polyvinyl chloride, styrene-acrylonitrile copolymer, and the like.
- amorphous transparent thermoplastic resins such as polyalkyl (meth) acrylate, alkyl (meth) acrylate-styrene copolymer, polycarbonate, polyvinyl chloride, styrene-acrylonitrile copolymer, and the like.
- the vinyl cyan-based monomer is not limited thereto, but may be at least one selected from acrylonitrile, methacrylonitrile, and ethacrylonitrile.
- the technique of including such a small amount in the composition of the vinyl cyan monomer can be achieved by controlling the content of the vinyl cyan monomer constituting the graft copolymer, in particular in the present invention the component constituting the graft copolymer Heavy vinyl cyan-based monomer has a technical feature to include within the range of 1 to 9.999% by weight based on a total of 100% by weight of the total composition of the graft copolymer.
- the graft copolymer may include an alkyl (meth) acrylate monomer in the range of 30 to 60% by weight based on a total of 100% by weight of the total components of the graft copolymer.
- the graft copolymer may further include 5 to 25% by weight of aromatic vinyl monomer and 20 to 50% by weight of conjugated diene rubbery polymer based on a total of 100% by weight of the total components of the graft copolymer.
- a copolymer obtained by grafting the alkyl (meth) acrylate monomer, the aromatic vinyl monomer, and the vinyl cyan monomer to the conjugated diene rubber polymer ranges from 10 to 30% by weight based on the total weight of the composition. It can be included as.
- conjugated diene-based rubber polymers but not limited thereto, butadiene rubber polymers, isoprene rubber polymers and chloroisoprene rubber polymers are preferably selected, and large diameter rubber polymers having 250 to 500 nm and gel content of 60 to 95% may be used. Can be.
- a small diameter rubbery polymer having an average particle diameter of 100 to 200 nm and a gel content of 60 to 95% may be prepared by using an acid such as acetic acid, a base or other polymer. It is also possible to apply a method of large diameter by a method such as fusion.
- the additive for emulsion polymerization for the small-diameter conjugated diene-based rubbery polymer is emulsifier such as potassium rosin salt or potassium oleate salt, electrolyte such as sodium carbonate, potassium hydrogen carbonate, molecular weight regulator such as dodecyl mercaptan, and potassium persulfate Organic peroxide initiators, such as these, can be included.
- emulsifier such as potassium rosin salt or potassium oleate salt
- electrolyte such as sodium carbonate, potassium hydrogen carbonate
- molecular weight regulator such as dodecyl mercaptan
- potassium persulfate Organic peroxide initiators such as these, can be included.
- the average particle diameter of the conjugated diene-based rubbery polymer, and also the gel content corresponds to a factor which has a great influence on the impact strength and processability of the final resin.
- the graft rate greatly affects the physical properties of the graft copolymer.
- alkyl (meth) acrylate monomer is not limited thereto, but selected from methyl acrylate, ethyl acrylate, methyl methacrylate, ethyl methacrylate, methyl acrylate and ethyl acrylate. It may be more than one species, and the use of methyl methacrylate is most preferred in view of reactivity.
- the aromatic vinyl monomer may be at least one selected from styrene, ⁇ -methylstyrene, p-methylstyrene, and styrene in which one or more hydrogen atoms in the benzene nucleus are optionally substituted with an alkyl group having 1 to 5 carbon atoms or halogen, and using styrene. It is most preferable when considering reactivity.
- the polymerization additive for the graft copolymer may be emulsifiers such as potassium rosin or potassium oleate, alkylarylsulfonate salts, molecular weight regulators such as dodecyl mercaptan, sodium pyrophosphate, ferrous sulfide, and the like.
- redox-based redox catalysts redox initiators such as dextrose, and polymerization initiators such as cumene hydroperoxide.
- the emulsion polymerization method for producing the graft copolymer is not limited thereto, but it is more preferable to polymerize using a redox initiator.
- the graft copolymer is preferably used in the range of 10 to 30% by weight with respect to the thermoplastic resin composition.
- the graft copolymer is less than 10% by weight, the impact strength is significantly lowered. Therefore, when a problem arises in workability, it is because colorability and scratch resistance are inferior.
- the graft copolymer thus obtained may satisfy a refractive index range of 1.513 to 1.518, for example 1.515 to 1.516, to maintain transparency.
- the bulk polymer is obtained by bulk polymerization of 60 to 80% by weight of an alkyl (meth) acrylate monomer and 20 to 40% by weight of an aromatic vinyl monomer in a reaction medium, and is based on 90 to 70 based on the total weight of the composition. It may include in the weight percent range.
- the aromatic vinyl monomer constituting the bulk polymer is limited to a content sufficient to improve the injection moldability, and the vinyl cyan monomer is not used in consideration of lowering the injection moldability.
- the alkyl (meth) acrylate monomer it was confirmed that the yellowness can be lowered and the hardness is increased to improve the scratch resistance.
- the alkyl (meth) acrylate monomer is not limited thereto, but methyl acrylate, ethyl acrylate, methyl methacrylate, ethyl methacrylate, methyl acrylate and ethyl acrylate. It may be one or more selected, and using methyl methacrylate is most preferred when considering reactivity.
- the alkyl (meth) acrylate monomer is preferably from 60 to 80% by weight based on 100% by weight of the total composition of the bulk polymer, less than 60% by weight of the refractive index increases to increase haze and scratch resistance There is a problem, and if it exceeds 80% by weight, the viscosity of the reactant is increased so that the polymerization does not proceed uniformly and workability is lowered, which is not preferable.
- the aromatic vinyl monomer may be at least one selected from styrene, ⁇ -methylstyrene, p-methylstyrene, and styrene in which at least one hydrogen of the benzene nucleus is optionally substituted with an alkyl group having 1 to 5 carbon atoms or a halogen, and styrene Using is most preferred when considering the reactivity.
- the aromatic vinyl monomer is preferably 20 to 40% by weight based on a total of 100% by weight of the total composition of the bulk polymer, but less than 20% by weight has a problem of high viscosity of the reactants and poor processability and fluidity of the produced product.
- the content exceeds 40% by weight, the refractive index becomes large, the transparency decreases and the scratch resistance decreases, which is not preferable.
- the vinyl cyan compound is not used in the preparation of the bulk polymer, and thus has technical characteristics in providing low yellowness and glossiness.
- the reaction medium is one or more selected from an alkyl group having 1 to 3 carbon atoms or an aromatic hydrocarbon compound substituted by halogen, and may be included in the range of 20 to 30 parts by weight based on 100 parts by weight of the total composition of the bulk polymer. .
- the reaction medium plays a role of a reaction lubricant rather than a reaction solvent.
- the reaction medium is less than 20 parts by weight, there is a problem in that the viscosity of the reactants is sharply increased.
- the reaction medium is more than 30 parts by weight, the molecular weight is low and the yield is low. Not.
- an antioxidant it is used for the purpose of suppressing yellowing in a high temperature volatilization tank. Based on a total of 100 parts by weight of the total composition of the hindered phenolic antioxidant alone or as a mixture with a phosphite antioxidant It may be included within the range of 0.01 to 1 part by weight. If the amount is less than 0.01 part by weight, the effect of suppressing yellowing due to thermal hysteresis in the fine volatilization tank is small. If the amount is more than 1 part by weight, there is a problem that the refractive index increases due to a decrease in the polymerization conversion rate, which is not preferable.
- the mixing ratio of the antioxidant is not limited thereto, but the phenolic antioxidant: phosphite antioxidant is 9: 1 to 1: 5, preferably 5: 1 to 1: 3, more preferably 2: 1 to It is 1: 2 weight ratio.
- the amount of phosphite-based antioxidant exceeds the mixing ratio of 1: 5 in the composition ratio of the phenolic antioxidant and the phosphite-based antioxidant, there is a problem in the thermal history received during polymerization, and the phosphite is less than the mixing ratio of 9: 1. If the amount of the antioxidant is less used, there is a problem in the heat history during volatilization and processing is not preferable.
- the phenolic antioxidant is not limited thereto, but tetrakis methylene 3- (3,5-di-tert-butyl-4-hydroxyphenyl) propionate methane, 1,3,5-tris- (4- t-butyl-3-hydroxy-2,6-dimethylbenzel) -1,3,5-triazine-2,4,6- (1H, 3H, 5H) -trione and 1,3,5-tris It is preferred that it is one selected from-(3,5-di-t-butyl-4-hydroxybenzyl) -s-triazine-2,4,6- (1H, 3H, 5H) -trione.
- the phosphite-based antioxidant is not limited thereto, but is preferably one selected from tris (2,4-t-butylphenyl) phosphite and tris- (nonylphenyl) phosphite.
- a molecular weight modifier can be added, dodecyl mercaptans etc. can be used as a molecular weight modifier.
- Such a bulk polymer may be included in 90 to 70% by weight relative to the total thermoplastic resin, but if it exceeds 90% by weight has a problem of lowering the impact strength, less than 70% by weight of the problem of scratch resistance and rigidity is poor have.
- the bulk polymer thus obtained may satisfy a refractive index in the range of 1.513 to 1.518, for example in the range of 1.515 to 1.516, to maintain transparency.
- thermoplastic resin composition comprising the graft copolymer and the bulk polymer described above may further include 0.01 to 0.01 parts by weight based on 100 parts by weight of the total composition of at least one selected from ethylene bis stearamide, polyethylene oxide wax, and magnesium stearate as a lubricant. It may include within the range of 5 parts by weight.
- the total refractive index of the thermoplastic resin composition obtained from the refractive indexes of the graft copolymer and the bulk polymer presented above may also satisfy the refractive index in the range of 1.513 to 1.518, for example in the range of 1.515 to 1.516.
- thermoplastic resin composition obtained in such a composition, specifically, a thermoplastic resin obtained by injection molding the extruded pellets of the thermoplastic resin composition, the total transmittance ) Above 89 and below Haze 3.0, which can be applied to housing applications of electrical and electronic products.
- the pencil hardness measured from the thermoplastic resin obtained satisfies F to 2H can improve the scratch resistance.
- the yellowness measured according to ASTM E313 may satisfy 8 or less.
- the present invention provides an alkyl (meth) acrylate-based thermoplastic resin having high scratch resistance and low yellowness while maintaining transparency, flowability and glossiness.
- thermoplastic resin composition of the present invention composed of the above components may be prepared by adding additives selected from a lubricant, an antioxidant, an antistatic agent, a mold releasing agent, and an ultraviolet stabilizer according to the use.
- the dual lubricant may be selected from ethylene bis stearamide, polyethylene oxide wax and magnesium stearate, the amount of which is used in the range of 0.1 to 5 parts by weight, more preferably 0.5 to 2 parts by weight based on 100 parts by weight of the thermoplastic resin composition. .
- the antioxidant may be used, such as IR1076 which is a phenolic antioxidant, the amount of the use is in the range of 0.5 to 2 parts by weight based on 100 parts by weight of the thermoplastic resin composition.
- the UV stabilizer may be used, such as TINUVIN 326, which is a UV absorber, the amount is used in the range of 0.05 to 3 parts by weight, more preferably 0.2 to 1 part by weight based on 100 parts by weight of the thermoplastic resin composition.
- thermoplastic resin composition of the present invention as described above is characterized by excellent impact resistance and transparency and low yellowness, and more specifically, has a transparent and clear feeling such as surface hardness and glass to be used as a transparent housing for electric and electronic products. Suitable.
- the present invention while lowering the total content of the vinyl cyanic monomers contained in the resin composition to a level not achieved in the prior art, while increasing the alkyl (meth) acrylate monomer content while maintaining transparency, fluidity and impact strength, It is possible to provide both scratch resistance and low yellowness, and in particular, it is possible to provide a thermoplastic resin that can be commercialized without coating due to excellent scratch resistance and glossiness, and is economical and recyclable.
- the gel content of the prepared small-diameter rubbery polymer was 90%, the swelling index was 18, and the particle diameter was about 100 nm.
- a large-diameter butadiene rubbery polymer was prepared by fusion welding a caliber rubbery polymer.
- the large diameter rubbery polymer prepared by the fusion process was analyzed in the same manner as the small diameter rubbery polymer.
- the particle size of the obtained rubbery polymer was 310 nm, and the gel content was 90%.
- the polymerization conversion was 99.5% and the solidified content was 0.1% .
- the refractive index of the bulk polymer thus prepared was 1.5156.
- Example 2 The same process as in Example 1 was repeated except that 15 wt% of the graft copolymer and 85 wt% of the bulk polymer were added.
- Example 2 The same process as in Example 1 was repeated except that 20% by weight of the graft copolymer and 80% by weight of the bulk polymer were added.
- Example 2 The same process as in Example 1 was repeated except that the graft copolymer was added in an amount of 25% by weight and the bulk polymer in an amount of 85% by weight.
- Example 2 The same process as in Example 1 was repeated except that the graft copolymer was added in 30 wt% and the bulk polymer in 70 wt%.
- Example 2 The same process as in Example 1 was carried out except that the content was replaced with 39.6 wt% of methyl methacrylate, 13.0 wt% of styrene, and 9.9 wt% of acrylonitrile as the monomer constituting the graft copolymer. Repeated.
- Example 2 The same process as in Example 1 was repeated except that the graft copolymer was added in 35 wt% and the bulk polymer in 65 wt%.
- Example 2 The same process as in Example 1 was repeated except that 5% by weight of the graft copolymer and 95% by weight of the bulk polymer were added.
- the impact resistant polymethylmethacrylate resin product (grade: HI-835M) of LG MMA was used without purification.
- LG Chem's transparent polycarbonate resin product (grade: LUPOY 1300-30) was used without purification.
- Example 1 the graft copolymer was used in 20% by weight, and the bulk polymer was repeated in the same manner as in Example 1 except that 80% by weight of the bulk polymer (c-1) prepared as follows was added. It was.
- the refractive index of the bulk polymer thus prepared was 1.5155.
- Example 1 The graft copolymer in Example 1 was used 20% by weight, and (b) the bulk polymer is the same as in Example 1 except that 80% by weight of the bulk polymer (c-2) prepared as follows The process was repeated.
- MI Fluidity (MI) : According to ASTM D1238, it measured at 220 degreeC, 10 kg load, and the speed condition of g / 10min (However, the polycarbonate resin of the comparative example 4 is measured at 300 degreeC and 2.16 kg load.).
- Pencil Hardness After fixing the pencil at a load of 0.5 kg and an angle of 45 °, it was determined whether the surface of the specimen was scratched with the naked eye by the pencil hardness, which is the criterion for scratch resistance.
- Total light transmittance (Tt) and haze Total transmittance and haze were measured using a haze transmittance meter (trade name: HR-100, Murakami Color Research Laboratory) according to JIS K 7105.
- Examples 1 to 5 according to the present invention is confirmed that the scratch resistance is excellent compared to Comparative Example 1 and polycarbonate resin using a high content of the graft copolymer alone.
- Example 1 Comparative Example 1
- polycarbonate resin using a high content of the graft copolymer alone.
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Abstract
Description
구분 | 실시예1 | 실시예2 | 실시예3 | 실시예4 | 실시예5 | 실시예 6 |
그라프트 공중합체(a) | 10 | 15 | 20 | 25 | 30 | 30 |
괴상 중합체(b) | 90 | 85 | 80 | 75 | 70 | 70 |
아크릴로니트릴 총 함량(wt%) | 0.25 | 0.375 | 0.5 | 0.625 | 0.75 | 2.97 |
HI-PMMA | - | - | - | - | - | - |
폴리카보네이트 수지 | - | - | - | - | - | - |
(a)의 굴절율 | 1.5159 | 1.5159 | 1.5159 | 1.5159 | 1.5159 | 1.5159 |
(b)의 굴절율 | 1.5156 | 1.5156 | 1.5156 | 1.5156 | 1.5156 | 1.5156 |
충격강도 | 4.5 | 6.3 | 9.0 | 11.1 | 14.6 | 15.9 |
유동성 | 12.8 | 12.1 | 11.5 | 10.9 | 10.1 | 10.2 |
연필경도 | 2H | H | H | F | F | F |
Tt/Hz | 91.9/1.8 | 91.2/2.3 | 91.0/2.5 | 90.9/2.6 | 90.4/2.9 | 89.5/2.9 |
황색도 | 5.77 | 5.92 | 6.15 | 6.30 | 6.44 | 7.88 |
구분 | 비교예1 | 비교예2 | 비교예3 | 비교예4 | 비교예5 | 비교예6 |
그라프트 공중합체(a) | 35 | 5 | - | - | 20 | 20 |
괴상 중합체(b) | 65 | 95 | - | - | - | - |
괴상 중합체(c-1) | - | - | - | - | 80 | - |
괴상 중합체(c-2) | - | - | - | - | - | 80 |
아크릴로니트릴 총 함량(%) | 0.875 | 0.125 | 12.5 | |||
HI-PMMA | - | - | 100 | - | - | - |
폴리카보네이트 수지 | - | - | - | 100 | - | - |
(a)의 굴절율 | 1.5159 | 1.5159 | 1.5159 | 1.5159 | 1.5159 | 1.5159 |
(b),(c-1),(c-2)의 굴절율 | 1.5156 | 1.5156 | 1.5156 | 1.5156 | 1.5155 | 1.5157 |
충격강도 | 17.4 | 2.9 | 3.3 | 30 | 10.0 | 4.3 |
유동성 | 9.7 | 13.3 | 6.1 | 58 | 10.7 | 12.9 |
연필경도 | HB | 2H | 2H | 2B | H | H |
Tt/Hz | 89.7/3.2 | 92.2/1.5 | 92.5/1.3 | 90.7/2.1 | 89.2/3.5 | 88.4/3.7 |
황색도 | 6.87 | 5.61 | 5.45 | 6.01 | 11.04 | 13.48 |
Claims (15)
- 알킬 (메트)아크릴레이트계 단량체를 각각 포함하는 괴상 중합체와 그라프트 공중합체로 이루어지는 조성물로서, 상기 조성물은 괴상 중합체 70 내지 90중량%와 그라프트 공중합체 30 내지 10 중량%로 이루어지고,상기 그라프트 공중합체에 비닐시안 단량체를 포함하되, 상기 비닐시안 단량체를 상기 조성물의 총 중량을 기준으로 0.01 내지 3 중량%가 되도록 포함한 것을 특징으로 하는, 알킬 (메트)아크릴레이트계 열가소성 수지 조성물.
- 제1항에 있어서,상기 괴상 중합체는 알킬(메트)아크릴레이트계 단량체 60 내지 80 중량% 및 방향족 비닐 단량체 20 내지 40 중량%를 반응 매질하에 괴상 중합시켜 수득된 것을 특징으로 하는, 알킬 (메트)아크릴레이트계 열가소성 수지 조성물.
- 제1항에 있어서,상기 그라프트 공중합체는 공액디엔계 고무질 중합체 20 내지 50 중량%에 알킬 (메트)아크릴레이트계 단량체 30 내지 60 중량%, 방향족 비닐 단량체 5 내지 25 중량%, 및 비닐시안계 단량체 1 내지 9.999 중량%를 그라프트시킨 것을 특징으로 하는, 알킬 (메트)아크릴레이트계 열가소성 수지 조성물.
- 제3항에 있어서,상기 그라프트 공중합체는 굴절율 1.513 내지 1.518 범위를 만족하는 것을 특징으로 하는, 알킬 (메트)아크릴레이트계 열가소성 수지 조성물.
- 제4항에 있어서,상기 그라프트 공중합체는 굴절율 1.515 내지 1.516 범위를 만족하는 것을 특징으로 하는, 알킬 (메트)아크릴레이트계 열가소성 수지 조성물.
- 제3항에 있어서,상기 공액디엔계 고무질 중합체는 250 내지 500 nm 이고 겔 함량이 60 내지 95%인 대구경 고무질 중합체인 것을 특징으로 하는, 알킬 (메트)아크릴레이트계 열가소성 수지 조성물.
- 제6항에 있어서,상기 대구경 고무질 중합체는 평균 입경이 100 내지 200 nm이고 겔 함량이 60 내지 95%인 소구경 고무질 중합체로부터 수득한 것을 특징으로 하는, 알킬 (메트)아크릴레이트계 열가소성 수지 조성물.
- 제2항에 있어서,상기 반응 매질은 탄소원자수 1 내지 3의 알킬기 혹은 할로겐으로 치환된 방향족탄화수소 화합물 중에서 선택된 1종 이상으로서, 괴상중합용 전체 단량체 총 100 중량부 기준으로 20 내지 30 중량부 범위 내로 포함하는 것을 특징으로 하는, 알킬 (메트)아크릴레이트계 열가소성 수지 조성물.
- 제2항에 있어서,상기 괴상 중합체는 괴상중합용 전체 단량체 총 100 중량부 기준으로 페놀계 산화방지제와 포스파이트계 산화방지제의 9:1 내지 1:5의 중량비로 배합된 산화방지제를 0.01 내지 1 중량부 범위 내로 더 포함하는 것을 특징으로 하는, 알킬 (메트)아크릴레이트계 열가소성 수지 조성물.
- 제2항에 있어서,상기 괴상 중합체는 굴절율 1.513 내지 1.518 범위를 만족하는 것을 특징으로 하는, 알킬 (메트)아크릴레이트계 열가소성 수지 조성물.
- 제10항에 있어서,상기 괴상 중합체는 굴절율 1.515 내지 1.516 범위를 만족하는 것을 특징으로 하는, 알킬 (메트)아크릴레이트계 열가소성 수지 조성물.
- 제1항에 있어서,상기 조성물은 에틸렌비스 스테아르아미드, 산화 폴리에틸렌 왁스, 및 마그네슘 스테아레이트 중에서 선택된 1종 이상의 활제를, 조성물 총 100 중량부 기준으로 0.01 내지 5중량부 범위 내로 더 포함하는 것을 특징으로 하는, 알킬 (메트)아크릴레이트계 열가소성 수지 조성물.
- 제1항에 의한 열가소성 수지 조성물로부터 제공되되, 상기 열가소성 수지 조성물의 압출 펠렛을 사출 성형시켜 수득된 열가소성 수지로서, 투명도(total transmittance) 89 이상이고 탁도(Haze) 3.0 이하로서 전기전자 제품의 하우징 용도에 적용되는 것을 특징으로 하는, 알킬 (메트)아크릴레이트계 열가소성 수지.
- 제13항에 있어서,상기 수지로부터 측정한 연필경도가, F 내지 2H의 범위 내인 것을 특징으로 하는, 알킬 (메트)아크릴레이트계 열가소성 수지.
- 제13항에 있어서,상기 수지로부터 ASTM E313에 의거하여 측정한 황색도가 8 이하인 것을 특징으로 하는, 알킬 (메트)아크릴레이트계 열가소성 수지.
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EP12822367.4A EP2743311B1 (en) | 2011-08-11 | 2012-07-27 | Alkyl (meth)acrylate-based thermoplastic resin composition and thermoplastic resin having adjusted scratch resistance and yellowness |
JP2014503615A JP5759062B2 (ja) | 2011-08-11 | 2012-07-27 | アルキル(メタ)アクリレート系熱可塑性樹脂組成物、及び耐スクラッチ性と黄色度が調節された熱可塑性樹脂 |
CN201280017328.3A CN103476861B (zh) | 2011-08-11 | 2012-07-27 | 基于(甲基)丙烯酸烷基酯的热塑性树脂组合物和具有调节的耐划伤性和泛黄度的热塑性树脂 |
US14/009,486 US9315658B2 (en) | 2011-08-11 | 2012-07-27 | Alkyl(meth)acrylate-based thermoplastic resin composition and thermoplastic resin with high scratch resistance and low yellowness |
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