CN109280526B - Two-component power battery structural adhesive and preparation method thereof - Google Patents
Two-component power battery structural adhesive and preparation method thereof Download PDFInfo
- Publication number
- CN109280526B CN109280526B CN201811096124.9A CN201811096124A CN109280526B CN 109280526 B CN109280526 B CN 109280526B CN 201811096124 A CN201811096124 A CN 201811096124A CN 109280526 B CN109280526 B CN 109280526B
- Authority
- CN
- China
- Prior art keywords
- component
- parts
- structural adhesive
- power battery
- aramid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 59
- 239000000853 adhesive Substances 0.000 title claims abstract description 56
- 238000002360 preparation method Methods 0.000 title claims description 32
- 229920005862 polyol Polymers 0.000 claims abstract description 33
- 150000003077 polyols Chemical class 0.000 claims abstract description 33
- 239000004760 aramid Substances 0.000 claims abstract description 30
- 229920003235 aromatic polyamide Polymers 0.000 claims abstract description 29
- 239000002121 nanofiber Substances 0.000 claims abstract description 29
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000003063 flame retardant Substances 0.000 claims abstract description 21
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 13
- 239000012948 isocyanate Substances 0.000 claims abstract description 13
- 150000002513 isocyanates Chemical class 0.000 claims abstract description 13
- 239000011347 resin Substances 0.000 claims abstract description 13
- 229920005989 resin Polymers 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 11
- 239000003054 catalyst Substances 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 6
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 3
- 229920006231 aramid fiber Polymers 0.000 claims description 27
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 24
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 15
- 229920000570 polyether Polymers 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 15
- 238000002156 mixing Methods 0.000 claims description 14
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 10
- 239000002270 dispersing agent Substances 0.000 claims description 10
- 229910052582 BN Inorganic materials 0.000 claims description 8
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 8
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 8
- VONWDASPFIQPDY-UHFFFAOYSA-N dimethyl methylphosphonate Chemical compound COP(C)(=O)OC VONWDASPFIQPDY-UHFFFAOYSA-N 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 8
- 239000004359 castor oil Substances 0.000 claims description 7
- 235000019438 castor oil Nutrition 0.000 claims description 7
- 239000004020 conductor Substances 0.000 claims description 7
- 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 claims description 7
- 229920005906 polyester polyol Polymers 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- WYNCHZVNFNFDNH-UHFFFAOYSA-N Oxazolidine Chemical compound C1COCN1 WYNCHZVNFNFDNH-UHFFFAOYSA-N 0.000 claims description 6
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- 239000003513 alkali Substances 0.000 claims description 6
- 239000002808 molecular sieve Substances 0.000 claims description 6
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical group [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 6
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 4
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 claims description 4
- WMBWREPUVVBILR-WIYYLYMNSA-N (-)-Epigallocatechin-3-o-gallate Chemical compound O([C@@H]1CC2=C(O)C=C(C=C2O[C@@H]1C=1C=C(O)C(O)=C(O)C=1)O)C(=O)C1=CC(O)=C(O)C(O)=C1 WMBWREPUVVBILR-WIYYLYMNSA-N 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- LPNYRYFBWFDTMA-UHFFFAOYSA-N potassium tert-butoxide Chemical compound [K+].CC(C)(C)[O-] LPNYRYFBWFDTMA-UHFFFAOYSA-N 0.000 claims description 3
- ZBSCMUKWGDDOQK-UHFFFAOYSA-N tris[2-(2-hydroxyethoxy)ethyl] phosphite Chemical compound OCCOCCOP(OCCOCCO)OCCOCCO ZBSCMUKWGDDOQK-UHFFFAOYSA-N 0.000 claims description 3
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 2
- 229910019142 PO4 Inorganic materials 0.000 claims description 2
- 229920000388 Polyphosphate Polymers 0.000 claims description 2
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims description 2
- 239000002518 antifoaming agent Substances 0.000 claims description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 2
- 239000001110 calcium chloride Substances 0.000 claims description 2
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 2
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 claims description 2
- 239000003085 diluting agent Substances 0.000 claims description 2
- 150000002009 diols Chemical class 0.000 claims description 2
- 239000000395 magnesium oxide Substances 0.000 claims description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 2
- 239000010452 phosphate Substances 0.000 claims description 2
- 239000000049 pigment Substances 0.000 claims description 2
- 239000001205 polyphosphate Substances 0.000 claims description 2
- 235000011176 polyphosphates Nutrition 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 235000012239 silicon dioxide Nutrition 0.000 claims description 2
- 150000005846 sugar alcohols Polymers 0.000 claims description 2
- WVLBCYQITXONBZ-UHFFFAOYSA-N trimethyl phosphate Chemical compound COP(=O)(OC)OC WVLBCYQITXONBZ-UHFFFAOYSA-N 0.000 claims description 2
- BIKXLKXABVUSMH-UHFFFAOYSA-N trizinc;diborate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]B([O-])[O-].[O-]B([O-])[O-] BIKXLKXABVUSMH-UHFFFAOYSA-N 0.000 claims description 2
- 238000001291 vacuum drying Methods 0.000 claims description 2
- 239000011787 zinc oxide Substances 0.000 claims description 2
- 239000011541 reaction mixture Substances 0.000 claims 3
- HHDUMDVQUCBCEY-UHFFFAOYSA-N 4-[10,15,20-tris(4-carboxyphenyl)-21,23-dihydroporphyrin-5-yl]benzoic acid Chemical compound OC(=O)c1ccc(cc1)-c1c2ccc(n2)c(-c2ccc(cc2)C(O)=O)c2ccc([nH]2)c(-c2ccc(cc2)C(O)=O)c2ccc(n2)c(-c2ccc(cc2)C(O)=O)c2ccc1[nH]2 HHDUMDVQUCBCEY-UHFFFAOYSA-N 0.000 claims 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims 1
- 239000012970 tertiary amine catalyst Substances 0.000 claims 1
- 239000012974 tin catalyst Substances 0.000 claims 1
- 230000032683 aging Effects 0.000 abstract description 9
- 239000004814 polyurethane Substances 0.000 description 14
- 229920002635 polyurethane Polymers 0.000 description 14
- 230000000052 comparative effect Effects 0.000 description 7
- CWZPGMMKDANPKU-UHFFFAOYSA-L butyl-di(dodecanoyloxy)tin Chemical compound CCCC[Sn+2].CCCCCCCCCCCC([O-])=O.CCCCCCCCCCCC([O-])=O CWZPGMMKDANPKU-UHFFFAOYSA-L 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- 238000010998 test method Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- KVMPUXDNESXNOH-UHFFFAOYSA-N tris(1-chloropropan-2-yl) phosphate Chemical compound ClCC(C)OP(=O)(OC(C)CCl)OC(C)CCl KVMPUXDNESXNOH-UHFFFAOYSA-N 0.000 description 2
- 239000003981 vehicle Substances 0.000 description 2
- 240000007377 Petunia x hybrida Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000021615 conjugation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 238000007541 indentation hardness test Methods 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- -1 phosphate ester Chemical class 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 239000002516 radical scavenger Substances 0.000 description 1
- 208000023504 respiratory system disease Diseases 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- 238000003878 thermal aging Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
- C08K2003/382—Boron-containing compounds and nitrogen
- C08K2003/385—Binary compounds of nitrogen with boron
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention relates to a two-component power battery structural adhesive which comprises a component A and a component B, wherein the component A comprises the following raw materials in parts by weight: 100 parts of polyol; 50-450 parts of heat conduction material; 10-30 parts of aramid nano-fiber; 1-50 parts of a flame retardant; 0.01-5 parts of a catalyst; 10-20 parts of a water removing agent; 0.1-20 parts of an auxiliary agent; the component B comprises the following raw materials: 100 parts of isocyanate resin; 1-50 parts of aramid nano fiber; 1-8 parts of a water removing agent. The two-component power battery structural adhesive has the advantages of high temperature and humidity resistance, aging resistance and high bonding strength.
Description
Technical Field
The invention relates to the technical field of adhesives, in particular to a two-component power battery structural adhesive and a preparation method thereof.
Background
The development prospect of new energy automobiles in China is infinitely wide. In recent years, the investment of the central government on the capital is continuously increased, and various cities are also continuously and actively involved in the popularization and the promotion of new energy automobiles in the links of policies, development planning, infrastructure construction, consumption subsidy and the like. Most countries and vehicle enterprises focus on pure electric vehicles in the development of new energy vehicles.
In the field of pure electric vehicles, the core of the pure electric vehicles is a lithium battery electric drive system. The adhesive is one of the core factors for realizing the stable, efficient, durable and safe operation of the electric drive system. The power battery used by the current lithium battery electric automobile is formed by connecting a plurality of small battery cores in parallel and in series. The automobile has very strong vibrations in the driving process, and the frictional collision between the electric cores caused by the vibration impact force not only influences the service life of the battery, but also can cause explosion and fire in severe cases. Therefore, the development of the high-temperature-resistant, aging-resistant and high-strength cell bonding polyurethane structural adhesive is very important for the safety of the electric automobile.
However, structural adhesives of the polyurethane type have the disadvantage of being susceptible to thermal aging in high temperature and high humidity environments. The aramid fiber has the excellent performances of ultrahigh strength, acid and alkali resistance, light weight, insulation, ageing resistance, high modulus, high temperature resistance and the like, and the characteristics of the aramid fiber can just make up the defects of the polyurethane structural adhesive. However, the compatibility of the existing aramid fiber and polyurethane structural adhesive is poor, and the aramid fiber and polyurethane structural adhesive are difficult to apply to the field of structural adhesive.
Disclosure of Invention
Based on the two-component power battery structural adhesive, the two-component power battery structural adhesive has the advantages of high temperature and humidity resistance, aging resistance and high bonding strength.
The specific technical scheme is as follows:
a two-component power battery structural adhesive comprises a component A and a component B, which are calculated by weight,
the component A comprises the following raw materials:
the component B comprises the following raw materials:
100 parts of isocyanate resin;
1-50 parts of aramid nano fiber;
1-8 parts of a water removing agent.
In one embodiment, the weight ratio of the polyol to the aramid nanofiber is 100: (20-30);
the weight ratio of the isocyanate resin to the aramid nano-fiber is 100: (30-50).
In one embodiment, the preparation method of the aramid nanofiber comprises the following steps:
mixing and stirring 100 parts of aramid fiber, 1500-2500 parts of dimethyl sulfoxide and 1-10 parts of strong alkaline dispersing agent under a nitrogen sealing condition, and performing vacuum drying to obtain the modified aramid fiber;
the strong alkaline dispersing agent is selected from one or more of sodium hydroxide, potassium hydroxide and potassium tert-butoxide.
In one embodiment, the weight ratio of the aramid fiber, the dimethyl sulfoxide and the alkali dispersant is 100: (1800-2200): (3-8).
In one embodiment, the mixing and stirring temperature is 40-50 ℃ and the time is 48-72 h.
In one embodiment, the heat conducting material is selected from one or more of silicon dioxide, calcium carbonate, aluminum nitride, boron nitride, zinc oxide, magnesium oxide and spherical aluminum oxide.
In one embodiment, the thermally conductive material is formed from a mixture of 30: (1-5) spherical alumina and boron nitride.
In one embodiment, the flame retardant is selected from one or more of phosphate ester, aluminum hydroxide, zinc borate, antimony trioxide, polyphosphate, dimethyl methyl phosphate, flame retardant FR-109, flame retardant TCPP, Weston 430 and ExoIit OP 550.
In one embodiment, the flame retardant is prepared from 50: (5-10): (10-20) aluminum hydroxide, flame-retardant polyether polyol and dimethyl methylphosphonate.
In one embodiment, the polyol is one or more selected from polyether polyol, polyester polyol, castor oil modified polyol and short-chain diol, and the viscosity is 5000-20000 cps.
In one embodiment, the polyol is prepared from (30-50) by weight: (30-50): 20 of polyether polyol, polyester polyol and castor oil modified polyol.
In one embodiment, the isocyanate resin is selected from one or more of HDI, HDI prepolymer, polymeric MDI, liquefied MDI and MDI prepolymer, and the viscosity is 100-2000 cps.
In one embodiment, the catalyst is selected from an organotin-based catalyst or a tertiary amine-based catalyst.
In one embodiment, the water scavenger is selected from molecular sieve powder, calcium chloride, aluminum sulfate, or oxazolidine.
In one embodiment, the auxiliary agent is selected from one or more of a diluent, a pigment, an anti-settling agent, an antifoaming agent, a dispersing agent and a leveling agent.
The invention also provides a preparation method of the two-component power battery structural adhesive.
The specific technical scheme is as follows:
a preparation method of a two-component power battery structural adhesive comprises the following steps:
preparation of the component A: mixing the polyhydric alcohol, the heat conduction material, the flame retardant and the water removal agent, stirring at normal temperature, adding the aramid nano-fiber and the catalyst, stirring at normal temperature, and defoaming in vacuum to obtain a component A;
preparation of the component B: and mixing the isocyanate resin, the aramid nano-fiber and the water removing agent, stirring at normal temperature, and defoaming in vacuum to obtain the component B.
The component A and the component B are mixed according to the weight ratio of (2-5): 1, mixing to obtain the product.
Compared with the prior art, the invention has the following beneficial effects:
according to the two-component power battery structural adhesive, the polyol, the isocyanate resin and the aramid nano-fiber are respectively added into the component A and the component B according to a specific proportion, and are matched with the raw materials such as the heat conduction material and the flame retardant, so that the high temperature and high humidity resistance and the aging resistance of the polyurethane structural adhesive can be improved, the bonding strength of the polyurethane structural adhesive can be improved, and the impact resistance of the polyurethane structural adhesive can be improved. The aramid fiber is subjected to strong alkali treatment to obtain the aramid nanofiber, the main chain of the aramid fiber contains a large number of benzene rings, the aramid fiber and the benzene rings of the isocyanate resin have a conjugation effect, the compatibility with the isocyanate resin and other components in the polyurethane structural adhesive is good, the viscosity of the component A and the viscosity of the component B can be improved, the subsequent mixing and gluing of A, B components are facilitated, and the technical problem that the aramid fiber material is difficult to apply to the field of structural adhesives is solved. Meanwhile, the mechanical property and the heat resistance of the traditional polyurethane structural adhesive are improved by adding a large amount of filler powder, and the filler powder is easy to cause dust, destroy the environment and cause respiratory system diseases of workers. The polyurethane structural adhesive disclosed by the invention is excellent in aging resistance and outstanding in mechanical property, can be used for bonding a battery cell in a power battery module, and can be used for prolonging the service life and improving the safety of a power battery.
In the two-component power battery structural adhesive, the heat conduction material is preferably 30: the spherical alumina and the boron nitride in the step (1-5) can ensure the caking property and the heat conductivity of the structural adhesive, reduce the addition amount of the heat conducting material, and avoid the influence on the construction performance and the binding power caused by the increase of the viscosity of the system due to the increase of the heat conducting material. The preferred weight ratio of the flame retardant is 100: (5-10): (10-20) adding a small amount of flame-retardant polyether polyol into the aluminum hydroxide, the flame-retardant polyether polyol and the dimethyl methylphosphonate, and matching with the aluminum hydroxide and the dimethyl methylphosphonate in a specific ratio, so that the flame retardance of the polyurethane structural adhesive can be further improved. Moreover, the aramid nano-fiber can also interact with the flame-retardant system, so that the polyurethane structural adhesive has more excellent high-temperature resistance and flame-retardant property.
Detailed Description
In order that the invention may be more fully understood, reference will now be made to the following description. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The two-component power battery structural adhesive and the preparation method thereof of the present invention are further described in detail with reference to the following specific embodiments.
All of the starting materials in the following specific embodiments are commercially available.
The flame retardant FR-109 and the flame retardant TCPP are purchased from Qingdao union beauty industry Co.
Weston 430 was purchased from bogehuna, usa.
ExoIit OP550 was purchased from Clariant, Germany.
The isocyanate resin may be selected from the following commercial products, for example: wannate series, Wannate, wanta, petunia; desmodur series by Bayer; cosmonate series of mitsui chemical corporation of japan; MDI-LL from Korea brocade lake corporation.
Example 1
The embodiment provides an aramid nanofiber and a preparation method thereof, and the preparation method comprises the following steps:
cutting and shearing 100 parts of aramid fiber filaments, putting the cut aramid fiber filaments into a reaction kettle containing 2000 parts of dimethyl sulfoxide (DMSO) with water removed, and mechanically stirring the aramid fiber filaments for 12 hours. 5 parts of potassium tert-butoxide are then added and stirring is continued for 48 hours. The stirring temperature was 45 ℃ and was carried out under a nitrogen-sealed condition. And then, drying the solution in vacuum, and removing the redundant dimethyl sulfoxide reagent to obtain the aramid nano-fiber.
The aramid fiber is added into dimethyl sulfoxide and stirred, the color of the solution is gradually changed from colorless transparency to black brown, and the viscosity of the solution is gradually increased. After the alkaline dispersant is added, the viscosity of the solution is reduced in a certain range, and the color of the solution is lightened.
Example 2
The embodiment provides a two-component power battery structural adhesive and a preparation method thereof, and the preparation method comprises the following steps:
the preparation process of the component A is as follows:
100 parts of polyol (40 parts of polyether polyol, 40 parts of polyester polyol and 20 parts of castor oil modified polyol), 300 parts of spherical alumina, 10 parts of boron nitride, 25 parts of aluminum hydroxide, 5 parts of flame-retardant polyether polyol, 10 parts of dimethyl methylphosphonate and 15 parts of molecular sieve powder are added into a reaction kettle and stirred at normal temperature for 20 minutes, then 20 parts of the aramid nanofiber prepared in example 1 and 1 part of butyltin dilaurate are added into the reaction kettle and stirred and dispersed at high speed at normal temperature for 1 hour, and vacuum defoaming is carried out.
The viscosity of the component A is 8000-60000 cps.
The preparation process of the component B is as follows:
100 parts of MDI prepolymer, 5 parts of oxazolidine and 30 parts of the aramid nano-fiber prepared in the example 1 are added into a planetary machine, stirred and dispersed for 30 minutes at normal temperature, and then vacuum defoamed.
The viscosity of the component B is 200-10000 cps.
The component A and the component B are mixed according to the weight ratio of 4:1, mixing to obtain the power battery structural adhesive.
Example 3
The embodiment provides a two-component power battery structural adhesive and a preparation method thereof, and the preparation method comprises the following steps:
the preparation process of the component A is as follows:
100 parts of polyol (40 parts of polyether polyol, 40 parts of polyester polyol and 20 parts of castor oil modified polyol), 300 parts of spherical alumina, 10 parts of boron nitride, 25 parts of aluminum hydroxide, 5 parts of flame-retardant polyether polyol, 10 parts of dimethyl methylphosphonate and 15 parts of molecular sieve powder are added into a reaction kettle and stirred at normal temperature for 20 minutes, then 30 parts of aramid nanofiber prepared in example 1 and 1 part of butyltin dilaurate are added into the reaction kettle and stirred and dispersed at high speed at normal temperature for 1 hour, and vacuum defoaming is carried out.
The viscosity of the component A is 8000-60000 cps.
The preparation process of the component B is as follows:
100 parts of MDI prepolymer, 5 parts of oxazolidine and 50 parts of aramid nano-fiber prepared in the example 1 are added into a planetary machine, stirred and dispersed for 30 minutes at normal temperature, and then vacuum defoamed.
The viscosity of the component B is 600-2000 cps.
The component A and the component B are mixed according to the weight ratio of 4:1, mixing to obtain the power battery structural adhesive.
Example 4
The embodiment provides a two-component power battery structural adhesive and a preparation method thereof, and the preparation method comprises the following steps:
the preparation process of the component A is as follows:
100 parts of polyol (40 parts of polyether polyol, 40 parts of polyester polyol and 20 parts of castor oil modified polyol), 310 parts of spherical alumina, 25 parts of aluminum hydroxide, 5 parts of flame-retardant polyether polyol, 10 parts of dimethyl methylphosphonate and 15 parts of molecular sieve powder are added into a reaction kettle, stirred at normal temperature for 20 minutes, then 30 parts of aramid nanofiber prepared in example 1 and 1 part of butyltin dilaurate are added into the reaction kettle, stirred at high speed at normal temperature for dispersion for 1 hour, and vacuum defoamed.
The viscosity of the component A is 10000-60000 cps.
The preparation process of the component B is as follows:
100 parts of MDI prepolymer, 5 parts of oxazolidine and 40 parts of aramid nano-fiber prepared in the example 1 are added into a planetary machine, stirred and dispersed for 30 minutes at normal temperature, and then vacuum defoamed.
The viscosity of the component B is 200-4000 cps.
The component A and the component B are mixed according to the weight ratio of 4:1, mixing to obtain the power battery structural adhesive.
Example 5
The embodiment provides a two-component power battery structural adhesive and a preparation method thereof, and the preparation method comprises the following steps:
the preparation process of the component A is as follows:
100 parts of polyol (40 parts of polyether polyol, 40 parts of polyester polyol and 20 parts of castor oil modified polyol), 300 parts of spherical alumina, 10 parts of boron nitride, 25 parts of aluminum hydroxide, 5 parts of flame-retardant polyether polyol, 15 parts of dimethyl methylphosphonate and 15 parts of molecular sieve powder are added into a reaction kettle and stirred at normal temperature for 20 minutes, then 10 parts of aramid nanofiber prepared in example 1 and 1 part of butyltin dilaurate are added into the reaction kettle and stirred and dispersed at high speed at normal temperature for 1 hour, and vacuum defoaming is carried out.
The viscosity of the component A is 10000-60000 cps.
The preparation process of the component B is as follows:
100 parts of MDI prepolymer, 5 parts of oxazolidine and 30 parts of the aramid nano-fiber prepared in the example 1 are added into a planetary machine, stirred and dispersed for 30 minutes at normal temperature, and then vacuum defoamed.
The viscosity of the component B is 200-6000 cps.
The component A and the component B are mixed according to the weight ratio of 4:1, mixing to obtain the power battery structural adhesive.
Comparative example 1
The comparative example provides a two-component structural adhesive which is basically the same as the raw materials and the preparation method of the example 2, and the difference is that: the aramid nano-fibers of the component A and the component B are replaced by the same weight parts of aramid fibers.
Comparative example 2
The comparative example provides a two-component structural adhesive which is basically the same as the raw materials and the preparation method of the example 2, and the difference is that: the aramid fiber is improved by different methods, specifically: cutting and shearing 100 parts of aramid fiber filaments, putting the cut aramid fiber filaments into a reaction kettle containing 2000 parts of dimethyl sulfoxide (DMSO) with water removed, and mechanically stirring the aramid fiber filaments for 12 hours. Then 5 parts of pyridine are added and stirring is continued for 48 hours. The stirring process was carried out at a temperature of 45 ℃ under a nitrogen seal. The solution was then filtered and dried under vacuum to remove excess dimethyl sulfoxide reagent.
Effect test
The components A and B of examples 1-5 and comparative examples 1-2 were mixed at a weight ratio of 4:1, cured at room temperature, and tested for their performance by the following specific method:
the hardness test method comprises the following steps: GB/T531-1999 rubber pocket durometer indentation hardness test method.
The adhesive force testing method comprises the following steps: GB/T13936-.
The flame retardance test method comprises the following steps: GB/24267-.
The heat conductivity coefficient test method comprises the following steps: GB/T10297-.
The test results are shown in tables 1 and 2.
TABLE 1
Wherein, the wet heat storage conditions are as follows: the mixture was left at 85 ℃ and 85% RH for 1000 hours.
TABLE 2
As is clear from Table 1, the two-component structural adhesives of examples 2 to 5 were excellent in adhesive properties after curing, and maintained high adhesive properties after storage in a high-temperature and high-humidity environment. In particular, the raw materials of example 3 had the best proportional relationship, high thermal conductivity, and the best aging and adhesion resistance. In example 4, only spherical alumina was added to the heat conductive material, and the heat conductivity was slightly inferior to that of examples 2 and 3. The data of example 5 shows that, by adjusting the addition amount of the aramid nanofibers, the performance of the structural adhesive is slightly inferior to the bonding and aging performance of example 2, the hardness is low, and the thermal conductivity is poor.
In comparative example 1, the aramid fiber and polyurethane have different compatibility and poor adhesive property.
In the comparative example 2, the aramid fiber is modified by a weak alkali method, and the aramid fiber modified by the method is used as a raw material to prepare the structural adhesive, so that the bonding strength and the humidity and heat aging resistance of the structural adhesive are not remarkably improved.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A two-component power battery structural adhesive is characterized by comprising a component A and a component B, which are calculated by weight parts,
the component A comprises the following raw materials:
the component B comprises the following raw materials:
100 parts of isocyanate resin;
1-50 parts of aramid nano fiber;
1-8 parts of a water removing agent;
the preparation method of the aramid nanofiber comprises the following steps:
mixing and stirring 100 parts of aramid fiber, 1500-2500 parts of dimethyl sulfoxide and 1-10 parts of strong alkaline dispersing agent under a nitrogen sealing condition, and performing vacuum drying to obtain the modified aramid fiber;
the strong alkaline dispersing agent is selected from one or more of sodium hydroxide, potassium hydroxide and potassium tert-butoxide.
2. The two-component power battery structural adhesive as claimed in claim 1, wherein the weight ratio of the polyol to the aramid nanofiber is 100: (20-30);
the weight ratio of the isocyanate resin to the aramid nano-fiber is 100: (30-50).
3. The two-component power battery structural adhesive of claim 1, wherein the weight ratio of the aramid fiber, the dimethyl sulfoxide and the alkali dispersant is 100: (1800-2200): (3-8).
4. The two-component power battery structural adhesive of claim 3, wherein the weight ratio of the aramid fiber, the dimethyl sulfoxide and the alkali dispersant is 100: 2000: 5.
5. the two-component power battery structural adhesive according to any one of claims 1 to 4, wherein the heat conducting material is selected from one or more of silicon dioxide, calcium carbonate, aluminum nitride, boron nitride, zinc oxide, magnesium oxide and spherical aluminum oxide;
the flame retardant is selected from one or more of phosphate, aluminum hydroxide, zinc borate, antimony trioxide, polyphosphate, dimethyl methyl phosphate, FR-109, TCPP, Weston 430 and ExoIit OP 550.
6. The two-component power battery structural adhesive according to claim 5, wherein the heat conducting material is prepared from a mixture of materials with a weight ratio of 30: (1-5) spherical alumina and boron nitride.
7. The two-component power battery structural adhesive as claimed in claim 5, wherein the flame retardant is prepared from the following components in a weight ratio of 50: (5-10): (10-20) aluminum hydroxide, flame-retardant polyether polyol and dimethyl methylphosphonate.
8. The two-component power battery structural adhesive as claimed in any one of claims 1 to 4, wherein the polyol is one or more selected from polyether polyol, polyester polyol, castor oil modified polyol and short chain diol, and has a viscosity of 5000 to 20000 cps; and/or the presence of a catalyst in the reaction mixture,
the isocyanate resin is selected from one or more of HDI, HDI prepolymer, polymeric MDI, liquefied MDI and MDI prepolymer, and the viscosity is 100-2000 cps.
9. The two-component power battery structural adhesive according to any one of claims 1 to 4,
the catalyst is selected from an organic tin catalyst or a tertiary amine catalyst; and/or the presence of a catalyst in the reaction mixture,
the water removing agent is selected from molecular sieve powder, calcium chloride, aluminum sulfate or oxazolidine; and/or the presence of a catalyst in the reaction mixture,
the auxiliary agent is selected from one or more of a diluent, a pigment, an anti-settling agent, a defoaming agent, a dispersing agent and a leveling agent.
10. A method for preparing the two-component power battery structural adhesive according to any one of claims 1 to 9, which is characterized by comprising the following steps:
preparation of the component A: mixing the polyhydric alcohol, the heat conduction material, the flame retardant and the water removal agent, stirring at normal temperature, adding the aramid nano-fiber and the catalyst, stirring at normal temperature, and defoaming in vacuum to obtain a component A;
preparation of the component B: mixing the isocyanate resin, the aramid nano-fiber and the water removing agent, stirring at normal temperature, and defoaming in vacuum to obtain a component B;
the component A and the component B are mixed according to the weight ratio of (1-5): 1, mixing to obtain the product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811096124.9A CN109280526B (en) | 2018-09-19 | 2018-09-19 | Two-component power battery structural adhesive and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811096124.9A CN109280526B (en) | 2018-09-19 | 2018-09-19 | Two-component power battery structural adhesive and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109280526A CN109280526A (en) | 2019-01-29 |
| CN109280526B true CN109280526B (en) | 2021-02-02 |
Family
ID=65180944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811096124.9A Active CN109280526B (en) | 2018-09-19 | 2018-09-19 | Two-component power battery structural adhesive and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109280526B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110982472A (en) * | 2019-11-19 | 2020-04-10 | 天津利锋新能源科技有限公司 | Flame-retardant adhesive for lithium battery pack and preparation method thereof |
| CN110951438B (en) * | 2019-12-31 | 2022-05-27 | 广州机械科学研究院有限公司 | Flame-retardant solvent-free bi-component polyurethane structural adhesive and preparation method thereof |
| CN112126403A (en) * | 2020-09-28 | 2020-12-25 | 无锡博锦高分子研究发展有限公司 | Bonding composition for solar back panel and adhesive thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104464973A (en) * | 2014-12-29 | 2015-03-25 | 中科院广州化学有限公司 | High-strength aramid fiber transparent conducting thin film and manufacturing method and application thereof |
| CN104548968A (en) * | 2014-12-25 | 2015-04-29 | 中科院广州化学有限公司 | Kevlar nanofiber composite forward osmosis membrane, and preparation method and application thereof |
| CN105291512A (en) * | 2015-11-25 | 2016-02-03 | 哈尔滨工业大学 | Preparation method of high-strength polyurethane-based composite film |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6660376B1 (en) * | 2000-06-06 | 2003-12-09 | H. B. Fuller Licensing & Financing Inc. | Method of bonding permeable substrates with hot melt moisture cure adhesive having low viscosity and high green strength |
| US10160833B2 (en) * | 2012-04-26 | 2018-12-25 | The Regents Of The University Of Michigan | Synthesis and use of aramid nanofibers |
| CN104559901B (en) * | 2014-12-26 | 2016-08-24 | 东莞市腾威电子材料技术有限公司 | A kind of two component adhesive and its preparation method and application |
| CN105133865A (en) * | 2015-07-30 | 2015-12-09 | 上海琥达投资发展有限公司 | Thermoplastic non-metal integral bathroom and preparation method for same |
| CN105461876A (en) * | 2015-12-28 | 2016-04-06 | 倪协照 | Environmental nontoxic polyurethane adhesive for automotive interior and preparation method thereof |
| CN106883435B (en) * | 2017-03-17 | 2020-01-17 | 中科院广州化学有限公司南雄材料生产基地 | Aramid self-reinforced composite material prepared by surface dissolution method and application thereof |
-
2018
- 2018-09-19 CN CN201811096124.9A patent/CN109280526B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104548968A (en) * | 2014-12-25 | 2015-04-29 | 中科院广州化学有限公司 | Kevlar nanofiber composite forward osmosis membrane, and preparation method and application thereof |
| CN104464973A (en) * | 2014-12-29 | 2015-03-25 | 中科院广州化学有限公司 | High-strength aramid fiber transparent conducting thin film and manufacturing method and application thereof |
| CN105291512A (en) * | 2015-11-25 | 2016-02-03 | 哈尔滨工业大学 | Preparation method of high-strength polyurethane-based composite film |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109280526A (en) | 2019-01-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109280526B (en) | Two-component power battery structural adhesive and preparation method thereof | |
| CN112608707B (en) | Double-component polyurethane structural adhesive and preparation method thereof | |
| CN110699033A (en) | Double-component polyurethane adhesive and preparation method and application thereof | |
| CN103897652B (en) | A kind of environment protection type high-strength polyurethane adhesive/seal gum and preparation method thereof | |
| CN108864399B (en) | Organic silicon modified flame-retardant polyurethane and preparation thereof | |
| CN106700428A (en) | Halogen-free resin composition, adhesive and laminated busbar insulating adhesive film prepared therefrom, and preparation method of insulating adhesive film | |
| CN110452103B (en) | Anthracene dimer compound and preparation and application thereof | |
| CN102757588A (en) | Polyvinyl chloride flame-retardant fireproof power cable material and preparation method thereof | |
| CN114058249B (en) | Polyurethane toughening modified epoxy powder encapsulating material, preparation method and application | |
| CN110563922A (en) | Chemical crosslinking type high-performance room-temperature rapid self-repairing flexible material and preparation method and application thereof | |
| CN109251303A (en) | A kind of electrical core of power battery flame resistant heat insulation material | |
| CN114539964A (en) | Bi-component polyurethane adhesive for bonding power battery structure and preparation method thereof | |
| CN115558457B (en) | Double-component polyurethane structural adhesive and preparation method and application thereof | |
| CN112608708A (en) | Polyurethane heat-conducting insulating adhesive and preparation method thereof | |
| CN106753178B (en) | Two-component polyurethane sealant and preparation method thereof | |
| CN115926716B (en) | High-heat-conductivity low-density double-component polyurethane structural adhesive and preparation method thereof | |
| CN117304445A (en) | Room-temperature self-repairing flexible ablation-resistant material and preparation method and application thereof | |
| CN113980610B (en) | Nomex paper flame-retardant polyurethane hot-pressed adhesive film and preparation method thereof | |
| CN115386065B (en) | Preparation method of synergistic flame-retardant polyurethane elastomer | |
| CN115232593A (en) | Cold-thermal shock resistant flame-retardant bi-component polyurethane structural adhesive and preparation method thereof | |
| CN108753167A (en) | A kind of resin combination, the stack bus bar insulated rubber film and preparation method thereof comprising it | |
| CN115612433A (en) | Fatigue-resistant bi-component polyurethane heat-conducting structural adhesive and preparation method thereof | |
| CN100384928C (en) | High and low temperature resistant wedge band | |
| CN114163965A (en) | Bi-component solvent-free polyurethane adhesive for solar backboard | |
| CN116445121B (en) | Bi-component polyurethane structural adhesive with high-temperature adhesive force larger than cohesive force and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 510405 No.1 Yun'an Road, Guangzhou private science and Technology Park, Baiyun District, Guangzhou City, Guangdong Province Patentee after: Guangzhou Baiyun Technology Co.,Ltd. Address before: 510405 No.1 Yun'an Road, Guangzhou private science and Technology Park, Baiyun District, Guangzhou City, Guangdong Province Patentee before: GUANGZHOU BAIYUN CHEMICAL INDUSTRY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |