CN112063355A - Adhesive for power battery aluminum plastic film and processing technology thereof - Google Patents
Adhesive for power battery aluminum plastic film and processing technology thereof Download PDFInfo
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- CN112063355A CN112063355A CN202010888720.1A CN202010888720A CN112063355A CN 112063355 A CN112063355 A CN 112063355A CN 202010888720 A CN202010888720 A CN 202010888720A CN 112063355 A CN112063355 A CN 112063355A
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- plastic film
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- aluminum
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- 239000000853 adhesive Substances 0.000 title claims abstract description 62
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 62
- 239000002985 plastic film Substances 0.000 title claims abstract description 35
- 229920006255 plastic film Polymers 0.000 title claims abstract description 35
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 32
- 238000012545 processing Methods 0.000 title claims description 7
- 238000005516 engineering process Methods 0.000 title claims description 6
- 239000003822 epoxy resin Substances 0.000 claims abstract description 20
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 20
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 17
- 229920000570 polyether Polymers 0.000 claims abstract description 17
- 229920005862 polyol Polymers 0.000 claims abstract description 17
- 150000003077 polyols Chemical class 0.000 claims abstract description 17
- 229920001228 polyisocyanate Polymers 0.000 claims abstract description 16
- 239000005056 polyisocyanate Substances 0.000 claims abstract description 16
- 229920005906 polyester polyol Polymers 0.000 claims abstract description 14
- 239000002904 solvent Substances 0.000 claims abstract description 14
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000002041 carbon nanotube Substances 0.000 claims abstract description 10
- 229910021393 carbon nanotube Inorganic materials 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 6
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 claims abstract description 4
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 9
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims description 4
- YRKCREAYFQTBPV-UHFFFAOYSA-N acetylacetone Chemical compound CC(=O)CC(C)=O YRKCREAYFQTBPV-UHFFFAOYSA-N 0.000 claims description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 4
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims description 4
- 239000002048 multi walled nanotube Substances 0.000 claims description 4
- 239000002109 single walled nanotube Substances 0.000 claims description 4
- 239000004593 Epoxy Substances 0.000 claims description 3
- 125000002723 alicyclic group Chemical group 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- LTMRRSWNXVJMBA-UHFFFAOYSA-L 2,2-diethylpropanedioate Chemical compound CCC(CC)(C([O-])=O)C([O-])=O LTMRRSWNXVJMBA-UHFFFAOYSA-L 0.000 claims description 2
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims description 2
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 claims description 2
- ARYZCSRUUPFYMY-UHFFFAOYSA-N methoxysilane Chemical compound CO[SiH3] ARYZCSRUUPFYMY-UHFFFAOYSA-N 0.000 claims description 2
- WHIVNJATOVLWBW-UHFFFAOYSA-N n-butan-2-ylidenehydroxylamine Chemical compound CCC(C)=NO WHIVNJATOVLWBW-UHFFFAOYSA-N 0.000 claims description 2
- -1 phenolic aldehyde Chemical class 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 12
- 239000011888 foil Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 5
- 238000001723 curing Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000004677 Nylon Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 239000003792 electrolyte Substances 0.000 description 4
- 229920001778 nylon Polymers 0.000 description 4
- 229920006284 nylon film Polymers 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000002585 base Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000004841 bisphenol A epoxy resin Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000007719 peel strength test Methods 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229920001187 thermosetting polymer Polymers 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
- C09J175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/58—Epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/67—Unsaturated compounds having active hydrogen
- C08G18/6795—Unsaturated polyethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/67—Unsaturated compounds having active hydrogen
- C08G18/68—Unsaturated polyesters
-
- 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
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Inorganic Chemistry (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Cell Separators (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses an adhesive for an aluminum plastic film of a power battery, which consists of a component A and a component B, wherein the component A comprises the following raw materials in parts by weight: 10-15 parts of polyester polyol, 5-10 parts of polyether polyol, 3-5 parts of carbon nano tube, 0.1-0.5 part of toluene diisocyanate, 2-5 parts of epoxy resin, 0.2-0.5 part of silane coupling agent and 25-30 parts of solvent, wherein the component B comprises the following raw materials in parts by weight, 3-5 parts of polyisocyanate and 25-30 parts of solvent.
Description
Technical Field
The invention relates to the technical field of power battery aluminum-plastic films, in particular to an adhesive for a power battery aluminum-plastic film and a processing technology thereof.
Background
Lithium ion power batteries have been developed rapidly since the advent, and lithium batteries have requirements on severe physical and mechanical properties, chemical compatibility, barrier properties, electrochemical reactivity and the like in the manufacturing and using processes, and the requirements are directly related to the performance of an interlayer adhesive. At present, the commercial power battery aluminum-plastic film product has at least three layers, wherein the inner layer substrate is a nontoxic polyolefin layer, the aluminum foil is used as a middle layer, the outer layer is usually a nylon film, and each layer is compounded by different types of adhesive auxiliaries.
Because the inner and outer base materials are made of different materials, the base materials and the aluminum foil in the middle layer can be bonded completely by adopting different adhesives, and the application performances of aluminum plastic film stripping, deep drawing, heat resistance and the like can reach the performance requirements, but the adhesive used for bonding the aluminum plastic film interlayer materials in China at present can not meet the application requirement of the bonding force between the middle layer and the outer layer.
Therefore, how to provide an adhesive for an aluminum plastic film of a power battery to improve the adhesion between a nylon layer and an aluminum foil is a problem to be solved by those skilled in the art.
Disclosure of Invention
In view of the above, the invention provides the adhesive for the power battery aluminum-plastic film, which has excellent heat resistance and excellent binding force performance, and the preparation process of the adhesive is simple to operate and easy to carry out industrial production.
In order to achieve the purpose, the invention adopts the following technical scheme:
the adhesive for the power battery aluminum plastic film comprises a component A and a component B, wherein the component A comprises the following raw materials in parts by weight:
the component B comprises the following raw materials in parts by weight
3-5 parts of polyisocyanate
25-30 parts of a solvent.
Preferably, in the above adhesive for a power battery aluminum-plastic film, the polyester polyol is any one of an acrylic modified polyester polyol and an epoxy resin modified polyester polyol.
Preferably, in the adhesive for the power battery aluminum plastic film, the polyether polyol is any one of acrylic modified polyether polyol and epoxy resin modified polyether polyol.
The beneficial effects of the above technical scheme are: the modified polyester polyol or polyether polyol can effectively improve the dispersion performance of the adhesive and improve the electrolyte resistance of the adhesive, so that the nylon and the aluminum foil are combined more firmly.
Preferably, in the above adhesive for an aluminum plastic film of a power battery, the epoxy resin is prepared by mixing, by mass, 1: (1-2): (0.5-1) bisphenol A type epoxy resin, phenolic aldehyde type epoxy resin and alicyclic epoxy resin.
The beneficial effects of the above technical scheme are: the bisphenol A epoxy resin is directly added into a mixture of polyester polyol and polyether polyol which mainly provide bonding strength, and is cured with the polyisocyanate component to obtain a network polymer of the grafted epoxy resin, so that the peeling strength of the polyurethane adhesive is effectively improved, and the solvent resistance of the adhesive is enhanced; the phenolic epoxy resin improves the heat resistance of the adhesive material; the alicyclic epoxy resin can improve the processing performance of the adhesive, so that the adhesive is more flat and smooth in coating.
Preferably, in the adhesive for the aluminum plastic film of the power battery, the carbon nanotubes are either single-walled carbon nanotubes or multi-walled carbon nanotubes or both.
Preferably, in the above adhesive for an aluminum plastic film of a power battery, the carbon nanotubes are in a mass ratio of 1: (8-9) a mixture of single-walled carbon nanotubes and multi-walled carbon nanotubes.
The beneficial effects of the above technical scheme are: the addition of the carbon nano tube greatly improves the peeling strength, heat resistance, electrolyte resistance and the like of the adhesive.
Preferably, in the above adhesive for the power battery aluminum plastic film, the silane coupling agent is an epoxy silane coupling agent or a methoxy silane coupling agent.
Preferably, in the above adhesive for the power battery aluminum-plastic film, the solvent is any one of ethyl acetate, butyl acetate and butanone, and ethyl acetate is preferred.
Preferably, in the adhesive for the aluminum plastic film of the power battery, the polyisocyanate is any one of methyl ethyl ketoxime blocked polyisocyanate, diethyl malonate blocked polyisocyanate and acetylacetone blocked polyisocyanate.
The beneficial effects of the above technical scheme are: the sealing agent has higher activity on polyisocyanate, can generate sealing reaction without using a catalyst, has good storage stability and lower deblocking temperature, and further enhances the bonding property of the adhesive.
The invention also discloses a processing technology of the adhesive for the power battery aluminum-plastic film, which comprises the following steps:
(1) preparing a component A: adding polyester polyol and polyether polyol into a solvent, heating and stirring for 30-50min at the temperature of 50-55 ℃, continuously adding carbon nanotubes, toluene diisocyanate, epoxy resin and a silane coupling agent, and stirring at constant temperature for 20-25min until the components are uniformly mixed to obtain a component A;
(2) preparing a component B: dissolving polyisocyanate in a solvent, and stirring at 60-70 ℃ for 60-90min to be uniform to obtain a component B;
(3) preparing an adhesive: before use, the component A and the component B are uniformly mixed according to the mass ratio of 5:1, and the mixture is filtered to obtain the adhesive.
The beneficial effects of the above technical scheme are: the adhesive provided by the invention is prepared by respectively synthesizing the component A and the component B, and mixing the components when in use, so that the stability of the adhesive in the storage process is ensured, the curing time is shortened, and the adhesive is easy to cure and convenient to construct by mixing the two components according to the weight ratio.
Compared with the prior art, the invention discloses an adhesive for a power battery aluminum-plastic film and a processing technology thereof, and the adhesive has the following advantages:
(1) the mixture of the polyester polyol and the polyether polyol is adopted to provide initial adhesion, bonding strength and acid and alkali resistance, and the heat resistance and electrolyte resistance of the adhesive are further improved by compounding with the carbon nano tube;
(2) the polyester/polyether polyol, the epoxy resin and the silane coupling agent have synergistic effect, so that the bonding strength of the adhesive is greatly improved, and the modified polyester/polyether polyol is matched with a specific epoxy resin mixture for use, so that the modified polyester/polyether polyol plays an important role in improving the stripping force of the adhesive;
(3) the improved mixture of polyester polyol and polyether polyol can be used after being uniformly mixed with the component B serving as the curing agent, the operation method is simple, the stability of the components is ensured in the storage process, and the storage life is prolonged.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention discloses an adhesive for an aluminum plastic film of a power battery, and the performance of the adhesive is researched by changing the components, and the adhesive is specifically shown in a table 1:
TABLE 1 adhesive composition
The adhesive and the aluminum-plastic composite film for the aluminum-plastic film of the power battery are prepared according to the addition amount of each substance in the table 1, and the method comprises the following steps:
(1) preparing a component A: adding polyester polyol and polyether polyol into a solvent, heating and stirring for 40min at the temperature of 50-55 ℃, continuously adding carbon nanotubes, toluene diisocyanate, epoxy resin and a silane coupling agent, and stirring at constant temperature for 25min until the components are uniformly mixed to obtain a component A;
(2) preparing a component B: dissolving polyisocyanate in a solvent, and stirring for 90min to be uniform at the temperature of 60-70 ℃ to obtain a component B;
(3) preparing an adhesive: before use, the component A and the component B are uniformly mixed according to respective mass ratio and filtered to obtain the adhesive;
(4) coating the adhesive prepared in the step (3) by using a gravure or roll coating method at a ratio of 0.5-2g/m2Coating on the surface of an aluminum foil, drying a solvent in an oven, unreeling a nylon film, pressurizing and attaching the nylon film to the aluminum foil, curing and molding, cooling and rolling, and then placing in a curing chamber at 65-85 ℃ for curing for 72 hours to obtain the aluminum-plastic composite film compounded by the aluminum foil and the nylon.
The performance test of the bonding force peel strength is carried out on the prepared aluminum-plastic composite film, and the 180-degree peel strength of the aluminum foil and the nylon film of the composite film is shown in table 2, wherein: the 180 DEG peel strength test standard is GB8808-88-1988, test speed is method A: 300 mm/min.
TABLE 2 Performance test results (N/15mm)
The research shows that the polyurethane is improved by adjusting the formula of the polyurethane adhesive, so that the adhesive force and electrolyte resistance of the nylon layer and the aluminum foil layer are effectively improved, the requirements of the power battery aluminum plastic film are met, and reference significance is provided for the development of the aluminum plastic film.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. For the scheme disclosed by the embodiment, the scheme corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The adhesive for the power battery aluminum plastic film is composed of a component A and a component B, and is characterized in that the component A comprises the following raw materials in parts by weight:
the component B comprises the following raw materials in parts by weight
3-5 parts of polyisocyanate
25-30 parts of a solvent.
2. The adhesive for the aluminum-plastic film of the power battery as claimed in claim 1, wherein the polyester polyol is any one of acrylic modified polyester polyol and epoxy modified polyester polyol.
3. The adhesive for the power battery aluminum-plastic film is characterized in that the polyether polyol is any one of acrylic modified polyether polyol and epoxy resin modified polyether polyol.
4. The adhesive for the aluminum plastic film of the power battery as claimed in claim 1, wherein the epoxy resin is prepared from the following components in a mass ratio of 1: (1-2): (0.5-1) bisphenol A type epoxy resin, phenolic aldehyde type epoxy resin and alicyclic epoxy resin.
5. The adhesive for the aluminum plastic film of the power battery as claimed in claim 1, wherein the carbon nanotubes are either single-walled carbon nanotubes or multi-walled carbon nanotubes or both.
6. The adhesive for the aluminum plastic film of the power battery as claimed in claim 5, wherein the carbon nanotubes are mixed by mass ratio of 1: (8-9) a mixture of single-walled carbon nanotubes and multi-walled carbon nanotubes.
7. The adhesive for the aluminum plastic film of the power battery as claimed in claim 1, wherein the silane coupling agent is an epoxy silane coupling agent or a methoxy silane coupling agent.
8. The adhesive for the aluminum plastic film of the power battery as claimed in claim 1, wherein the solvent is any one of ethyl acetate, butyl acetate and butanone.
9. The adhesive for the aluminum-plastic film of the power battery according to claim 1, wherein the polyisocyanate is any one of methyl ethyl ketoxime blocked polyisocyanate, diethyl malonate blocked polyisocyanate and acetylacetone blocked polyisocyanate.
10. The processing technology of the adhesive for the power battery aluminum plastic film as recited in any one of claims 1 to 9 is characterized by comprising the following steps:
(1) preparing a component A: adding polyester polyol and polyether polyol into a solvent, heating and stirring for 30-50min at the temperature of 50-55 ℃, continuously adding carbon nanotubes, toluene diisocyanate, epoxy resin and a silane coupling agent, and stirring at constant temperature for 20-25min until the components are uniformly mixed to obtain a component A;
(2) preparing a component B: dissolving polyisocyanate in a solvent, and stirring at 60-70 ℃ for 60-90min to be uniform to obtain a component B;
(3) preparing an adhesive: before use, the component A and the component B are uniformly mixed according to the mass ratio of 5:1, and the mixture is filtered to obtain the adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010888720.1A CN112063355A (en) | 2020-08-28 | 2020-08-28 | Adhesive for power battery aluminum plastic film and processing technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010888720.1A CN112063355A (en) | 2020-08-28 | 2020-08-28 | Adhesive for power battery aluminum plastic film and processing technology thereof |
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| Publication Number | Publication Date |
|---|---|
| CN112063355A true CN112063355A (en) | 2020-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010888720.1A Pending CN112063355A (en) | 2020-08-28 | 2020-08-28 | Adhesive for power battery aluminum plastic film and processing technology thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115305042A (en) * | 2022-08-24 | 2022-11-08 | 杭州福斯特应用材料股份有限公司 | Black adhesive and aluminum plastic film |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN103492434A (en) * | 2011-05-24 | 2014-01-01 | 赢创罗姆有限公司 | Reactive resins for cable sealing compounds |
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| CN115305042B (en) * | 2022-08-24 | 2024-04-09 | 杭州福斯特功能膜材料有限公司 | Black adhesive and aluminum plastic film |
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