CN110093115A - A kind of UV visbreaking protective film and preparation method thereof for lithium battery packaging - Google Patents

A kind of UV visbreaking protective film and preparation method thereof for lithium battery packaging Download PDF

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Publication number
CN110093115A
CN110093115A CN201810096781.7A CN201810096781A CN110093115A CN 110093115 A CN110093115 A CN 110093115A CN 201810096781 A CN201810096781 A CN 201810096781A CN 110093115 A CN110093115 A CN 110093115A
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visbreaking
film
glue
branch
lithium battery
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Inventor
薛萌
张猛
赵云斐
陆金亮
王宜金
覃飞飞
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DONGGUAN AOZHONG ELECTRONIC MATERIAL Co Ltd
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DONGGUAN AOZHONG ELECTRONIC MATERIAL Co Ltd
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Priority to CN201810096781.7A priority Critical patent/CN110093115A/en
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00Chemical modification by after-treatment
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00Chemical modification by after-treatment
    • C08F8/30Introducing nitrogen atoms or nitrogen-containing groups
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J133/00Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
    • C09J133/04Homopolymers or copolymers of esters
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J133/00Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
    • C09J133/04Homopolymers or copolymers of esters
    • C09J133/14Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00Adhesives in the form of films or foils
    • C09J7/30Adhesives in the form of films or foils characterised by the adhesive composition
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00Additional features of adhesives in the form of films or foils
    • C09J2301/10Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
    • C09J2301/12Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
    • C09J2301/122Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present only on one side of the carrier, e.g. single-sided adhesive tape
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00Additional features of adhesives in the form of films or foils
    • C09J2301/30Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
    • C09J2301/312Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier parameters being the characterizing feature
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2423/00Presence of polyolefin
    • C09J2423/006Presence of polyolefin in the substrate
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2423/00Presence of polyolefin
    • C09J2423/10Presence of homo or copolymers of propene
    • C09J2423/105Presence of homo or copolymers of propene in the release coating
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2427/00Presence of halogenated polymer
    • C09J2427/006Presence of halogenated polymer in the substrate
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2467/00Presence of polyester
    • C09J2467/005Presence of polyester in the release coating
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2467/00Presence of polyester
    • C09J2467/006Presence of polyester in the substrate
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2475/00Presence of polyurethane
    • C09J2475/006Presence of polyurethane in the substrate

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

The present invention relates to protective film tape technology fields, and in particular to a kind of UV visbreaking protective film and preparation method thereof for lithium battery packaging.This is used for the UV visbreaking protective film of lithium battery packaging; including the base material film, UV visbreaking glue-line and release film set gradually; the UV visbreaking glue-line is the acrylate pressure-sensitive adhesive layer that branch has double bond; for the UV visbreaking glue-line by being made after UV visbreaking glue dries, the UV visbreaking glue includes following raw material: branch has acrylate pressure-sensitive adhesive, crosslinking agent, photoinitiator, the solvent of double bond.UV visbreaking glue protective film of the invention is only achieved that UV illumination visbreaking with a kind of single glue, and solving the problems, such as traditional protection film, production efficiency is low in use and residue glue, while solving the problems, such as that existing UV visbreaking glue is unstable.Preparation method simple process of the invention does not need harsh working condition and equipment, is particularly suitable for scale of mass production, has good economic benefit.

Description

A kind of UV visbreaking protective film and preparation method thereof for lithium battery packaging
Technical field
The present invention relates to protective film tape technology fields, and in particular to a kind of UV visbreaking protective film for lithium battery packaging And preparation method thereof.
Background technique
In the production, assembly and transportational process of the precise electronic products such as lithium battery, liquid crystal display, it will usually be covered on surface Protective film, to avoid that it is made to be contaminated or damage.But traditional protective film needs to tear off manually after having utilized, Automated production is hindered, production efficiency is reduced;Viscosity will not change substantially after traditional protection film has utilized simultaneously, Still there is larger viscosity, while tearing off, be easy to leave residue glue in product surface, affect the appearance of product, and increase Extra clean has been added to remove the workload of glue.
Currently, being focused primarily upon more by being added in acrylate base rubber in the research in UV visbreaking pressure sensitive adhesive field Then the acrylate of degree of functionality causes the crosslinking of double bond, to achieve the effect that visbreaking under the action of photoinitiator.Patent The preparation method that a kind of UV visbreaking glue of two-component is referred in CN105086730A, which employs have hydroxyl with branch third Olefin(e) acid ester copolymer is base rubber, using methacryloxyethyl maleic acid monoester as light-cured components, and passes through solidification Peeling force drops to the UV visbreaking glue of 0.022N/25mm after the adjusting UV of agent.Patent CN105778806A has invented a kind of high temperature resistant Visbreaking glue is still the addition polyfunctionality oligomer in high temperature resistant acrylate base rubber, has obtained UV visbreaking glue resistant to high temperature. Although existing technology can be realized the effect of visbreaking after UV, due to above scheme be be added on the basis of base rubber it is small The polyfunctionality oligomer of molecule causes such UV visbreaking scheme and the risk of residue glue occurs when having removing before UV, and needs Simultaneously consider base rubber and oligomer compatibility and compounding selectivity the problems such as, increase its unstability.
Summary of the invention
In order to overcome shortcoming and defect existing in the prior art, the purpose of the present invention is to provide one kind to be used for lithium battery The UV visbreaking protective film of packaging is only achieved that UV illumination visbreaking with a kind of single glue, solves traditional protection film and was using The problem of production efficiency is low in journey and residue glue, while solving the problems, such as that existing UV visbreaking glue is unstable.
Another object of the present invention is to provide a kind of preparation method of UV visbreaking protective film for lithium battery packaging, works Skill is simple, does not need harsh working condition and equipment, is particularly suitable for scale of mass production, has good economic benefit.
The purpose of the invention is achieved by the following technical solution: a kind of UV visbreaking protective film for lithium battery packaging, packet The base material film set gradually, UV visbreaking glue-line and release film are included, the UV visbreaking glue-line is the acrylate that branch has double bond Pressure-sensitive adhesive layer, for the UV visbreaking glue-line by being made after UV visbreaking glue dries, the UV visbreaking glue includes following parts by weight Raw material:
It is the polyfunctionality oligomer that small molecule is added on the basis of base rubber for existing UV viscosity reducing technology, so that There is the risk of residue glue in such UV visbreaking scheme when having removing before UV, and needs while considering the compatibility of base rubber and oligomer And compounding selectivity the problems such as, the problem of increasing its unstability, UV visbreaking glue-line of the invention is by UV visbreaking glue It is made after drying, this glue is not mixed instead of by a variety of glue to realize UV illumination visbreaking, only has double bond with branch Acrylate pressure-sensitive adhesive be achieved that UV illumination visbreaking as single glue.Traditional protection film is solved to produce in use The problem of low efficiency and residue glue, while solving the deficiency of existing UV visbreaking glue, become the large-scale application of UV protective film It may.The UV visbreaking glue-line with a thickness of 2-50 μm, more preferably, UV visbreaking glue-line with a thickness of 10 μm.
Preferably, the branch is synthesized with the acrylate pressure-sensitive adhesive of double bond by following manner: containing hydroxyl with branch Acrylate pressure-sensitive adhesive be starting material, and monoisocyanates acrylate reactions obtain the propylene that the branch has double bond Acid esters pressure sensitive adhesive.
In this synthetic method, the acrylate pressure-sensitive adhesive of hydroxyl is contained as starting material, in catalyst and polymerization inhibitor using branch Under the conditions of existing, with not only contain isocyano but also monoisocyanates acrylate reactions containing double bonds, in the work of catalyst The double bond that is used to prevent in monoisocyanates acrylate with reacting for lower acceleration isocyano and hydroxyl, polymerization inhibitor and contain hydroxyl Double bond in the acrylate pressure-sensitive adhesive of base reacts, so that double bond is retained, especially monoisocyanates third Double bond in olefin(e) acid ester is retained, and is grafted on molecule branch, and the Acrylate pressure sensitive that the branch has double bond is obtained Glue.The branch of this method synthesis has the acrylate pressure-sensitive adhesive of double bond, compared to its double bond ratio of traditional acrylate pressure-sensitive adhesive Example is higher, under UV illumination, polymerization reaction occurs under the action of photoinitiator and crosslinking agent, visbreaking effect is more preferable.Specifically , the additive amount of catalyst is the 20%-35% of the quality for the acrylate pressure-sensitive adhesive that branch contains hydroxyl, the addition of polymerization inhibitor Amount is the 20%-35% of the quality for the acrylate pressure-sensitive adhesive that branch contains hydroxyl, and monoisocyanates acrylate contains with branch The mass ratio for having the acrylate pressure-sensitive adhesive of hydroxyl is 2-5:100, and reaction temperature is 45-70 DEG C, reaction time 3-5h.
Preferably, the branch is synthesized with the acrylate pressure-sensitive adhesive of double bond by following manner: containing carboxyl with branch Acrylate pressure-sensitive adhesive be starting material, react with glycidyl methacrylate, obtain the branch with double bond third Olefin(e) acid ester pressure-sensitive.
In this synthetic method, the acrylate pressure-sensitive adhesive of carboxyl is contained as starting material, in catalyst and polymerization inhibitor using branch Under the conditions of existing, reacted with epoxy group but also glycidyl methacrylate containing double bonds was not only contained, in the work of catalyst With reacting for lower acceleration epoxy group and carboxyl, polymerization inhibitor is used to prevent double bond and branch in glycidyl methacrylate from containing There is the double bond in the acrylate pressure-sensitive adhesive of carboxyl to react, so that double bond is retained, especially metering system The double bond of acid glycidyl ester kind is retained, and is grafted on molecule branch, and the acrylic acid that the branch has double bond is obtained Ester pressure-sensitive.This method synthesis branch have double bond acrylate pressure-sensitive adhesive, compared to traditional acrylate pressure-sensitive adhesive its Double bond ratio is higher, under UV illumination, polymerization reaction occurs under the action of photoinitiator and crosslinking agent, visbreaking effect is more It is good.Specifically, the additive amount of catalyst is the 20%-35% of the quality for the acrylate pressure-sensitive adhesive that branch contains carboxyl, polymerization inhibitor The additive amount of agent is the 20%-35% of the quality for the acrylate pressure-sensitive adhesive that branch contains carboxyl, methyl propenoic acid glycidyl The mass ratio that ester and branch contain the acrylate pressure-sensitive adhesive of carboxyl is 2-5:100, and reaction temperature is 90-120 DEG C, the reaction time For 4-6h.
Preferably, the crosslinking agent is metallic-ion crosslinking agent, aziridines crosslinking agent, isocyanates crosslinking agent, amine One or more of class crosslinking agent and epoxies crosslinking agent.
The present invention has crosslinking instead for the acrylate pressure-sensitive adhesive of double bond by selecting the above crosslinking agent, with branch It answers, obtains stable cross-linked structure, cross-linking efficiency is high, so that UV visbreaking structural adhesive layer obtained is stablized, while under UV illumination, Under the action of photoinitiator, polymerization reaction occurs, preferably realizes UV visbreaking effect.The metallic-ion crosslinking agent is titanium One or more of ion, beryllium ion, magnesium ion, zinc ion, boron ion and aluminium ion;The amine cross-linking agent is two sub- second One or more of base triamine, trien and hexamethylenetetramine.More preferably, crosslinking agent of the invention is gold Belong to ion crosslinking agent, aziridines crosslinking agent and isocyanates crosslinking agent according to mass ratio be 2-3:1.5-1.8:1 compound and At.
Preferably, the photoinitiator is 1- hydroxycyclohexyl phenyl ketone, 2- hydroxy-methyl phenyl-propane -1- ketone, 2- Methyl-1-(4- methyl mercapto phenyl)-2- morpholinyl-1- acetone, benzoin dimethylether, benzophenone, 2- isopropyl thioxanthone, One or more of 2,4,6- (trimethylbenzoyl)-diphenyl phosphine oxide.
What the present invention selected can cause acrylate of the branch with double bond under the irradiation of UV light with photoinitiator Polymerization reaction occurs for pressure sensitive adhesive, and UV visbreaking glue-line obtained is more stable, while under UV illumination, under the action of photoinitiator, Polymerization reaction occurs, preferably realizes UV visbreaking effect.The more preferably described photoinitiator is 1- hydroxycyclohexylphenyl Ketone, 2- methyl-1-(4- methyl mercapto phenyl)-2- morpholinyl-1- acetone and benzophenone are 1-2:0.5- according to mass ratio 0.8:1 is compounded.
Preferably, the solvent is one or more of ethyl acetate, toluene, acetone.
Preferably, the base material film is one of transparent PP film, PET film, PO film, PI film, PVC film, PU film or multilayer Compound, the base material film film thickness is 6-100 μm, and sided corona treatment, corona value >=38 dyne are done in surface.
The glue-coated surface of base material film of the invention carries out sided corona treatment, makes its corona value >=38 dyne, so that UV visbreaking glue Water is preferably coated on base material film.
Preferably, the release film is PET film or PP film, and the release film film thickness is 16-50 μm, and release place is done on surface Reason, off-type force 5-50g.
What release film of the invention was contacted with UV visbreaking glue-line does release processing on one side, and off-type force 5-50g, being more convenient will Release film is torn from UV visbreaking glue-line.
The purpose of the invention is achieved by the following technical solution: a kind of system of the UV visbreaking protective film for lithium battery packaging Preparation Method, comprising the following steps:
(1) acrylate pressure-sensitive adhesive by branch with double bond, crosslinking agent, photoinitiator, solvent are mixed according to aforementioned proportion It closes, and is stirring evenly, obtain UV visbreaking glue;
(2) UV visbreaking glue is coated on the corona surface of base material film, is dried at a certain temperature, be then bonded release film Layer upper surface obtains UV visbreaking adhesive tape.
(3) the UV visbreaking adhesive tape posted is cured into certain time at a certain temperature and is used for lithium electricity to get to described The UV visbreaking protective film of pond packaging.
Preferably, in the step (1), mixing speed 500-2000rpm, mixing time 5-20min;The step (2) in, drying temperature is 50-120 DEG C, drying time 1-10min;In the step (3), curing temperature is 40-80 DEG C, ripe Changing the time is 1-4 days.
In preparation method of the invention, in step (1), by each dissolution of raw material and stir evenly, step (2) at normal temperature In, according to the suitable drying temperature of the solvent selection of selection and drying time;In step (3), it is coated with scraper type or extruded type UV visbreaking glue is coated on the corona surface of base material film by machine, and the coating process used is simple, do not need harsh working condition and Equipment is particularly suitable for scale of mass production, has good economic benefit.
The beneficial effects of the present invention are: UV visbreaking glue of the invention is not to realize UV light by the mixing of a variety of glue According to visbreaking, but UV illumination visbreaking only is achieved that with the acrylate pressure-sensitive adhesive of double bond with a kind of single branch.
UV visbreaking glue of the invention solves traditional protection film production efficiency is low in use and residue glue is asked Topic, while solving the deficiency of existing UV visbreaking glue, makes it possible the large-scale application of UV protective film.
Preparation method simple process of the invention does not need harsh working condition and equipment, is particularly suitable for large scale quantities It produces, there is good economic benefit.
Specific embodiment
For the ease of the understanding of those skilled in the art, below with reference to embodiment, the present invention is further illustrated, real The content that the mode of applying refers to not is limitation of the invention.
Embodiment 1
It is a kind of for lithium battery packaging UV visbreaking protective film, including set gradually base material film, UV visbreaking glue-line and from Type film, the UV visbreaking glue-line are the acrylate pressure-sensitive adhesive layer that branch has double bond, and the UV visbreaking glue-line is by UV visbreaking glue It is made after water is dry, the UV visbreaking glue includes the raw material of following parts by weight:
The branch is synthesized with the acrylate pressure-sensitive adhesive of double bond by following manner: the acrylic acid for containing hydroxyl with branch Ester pressure-sensitive is starting material, with monoisocyanates acrylate reactions, obtains the Acrylate pressure sensitive that the branch has double bond Glue.100kg branch contains the acrylate pressure-sensitive adhesive of hydroxyl, 2kg monoisocyanates acrylate, 30g dilauryl butyl tin, 30g p methoxy phenol is added in reaction kettle, 60 DEG C of reaction 4h.
The crosslinking agent is metallic-ion crosslinking agent.
The photoinitiator is 1- hydroxycyclohexyl phenyl ketone.
The solvent is ethyl acetate.
The base material film is transparent PET film, and the base material film film thickness is 6 μm, and sided corona treatment is done on surface.
The release film is PET film, and the release film film thickness is 16 μm, and release processing, off-type force 5g are in surface.
The preparation method of the UV visbreaking protective film for lithium battery packaging, comprising the following steps:
(1) acrylate pressure-sensitive adhesive by branch with double bond, crosslinking agent, photoinitiator, solvent are mixed according to aforementioned proportion It closes, and is stirring evenly, obtain UV visbreaking glue;
(2) UV visbreaking glue is coated on the corona surface of base material film, is dried at a certain temperature, be then bonded release film Layer upper surface obtains UV visbreaking adhesive tape.
(3) the UV visbreaking adhesive tape posted is cured into certain time at a certain temperature and is used for lithium electricity to get to described The UV visbreaking protective film of pond packaging.
In the step (1), mixing speed 500rpm, mixing time 20min;In the step (2), drying temperature It is 50 DEG C, drying time 10min;In the step (3), curing temperature is 40 DEG C, and the curing time is 4 days.
Embodiment 2
It is a kind of for lithium battery packaging UV visbreaking protective film, including set gradually base material film, UV visbreaking glue-line and from Type film, the UV visbreaking glue-line are the acrylate pressure-sensitive adhesive layer that branch has double bond, and the UV visbreaking glue-line is by UV visbreaking glue It is made after water is dry, the UV visbreaking glue includes the raw material of following parts by weight:
The branch is synthesized with the acrylate pressure-sensitive adhesive of double bond by following manner: the acrylic acid for containing carboxyl with branch Ester pressure-sensitive is starting material, is reacted with glycidyl methacrylate, and the acrylate pressure that the branch has double bond is obtained Quick glue.Specifically, 100kg branch contains the acrylate pressure-sensitive adhesive of carboxyl, 2kg glycidyl methacrylate, 30g triphen Base phosphine, 30g p methoxy phenol are added in reaction kettle, 110 DEG C of reaction 5h.
The crosslinking agent is aziridines crosslinking agent.
The photoinitiator is 2- methyl-1-(4- methyl mercapto phenyl)-2- morpholinyl-1- acetone.
The solvent is toluene.
The base material film is transparent PET film, and the base material film film thickness is 36 μm, and sided corona treatment is done on surface.
The release film is PP film, and the release film film thickness is 50 μm, and release processing, off-type force 50g are in surface.
The preparation method of the UV visbreaking protective film for lithium battery packaging, comprising the following steps:
(1) acrylate pressure-sensitive adhesive by branch with double bond, crosslinking agent, photoinitiator, solvent are mixed according to aforementioned proportion It closes, and is stirring evenly, obtain UV visbreaking glue;
(2) UV visbreaking glue is coated on the corona surface of base material film, is dried at a certain temperature, be then bonded release film Layer upper surface obtains UV visbreaking adhesive tape.
(3) the UV visbreaking adhesive tape posted is cured into certain time at a certain temperature and is used for lithium electricity to get to described The UV visbreaking protective film of pond packaging.
In the step (1), mixing speed 2000rpm, mixing time 5min;In the step (2), drying temperature It is 120 DEG C, drying time 1min;In the step (3), curing temperature is 80 DEG C, and the curing time is 1 day.
Embodiment 3
It is a kind of for lithium battery packaging UV visbreaking protective film, including set gradually base material film, UV visbreaking glue-line and from Type film, the UV visbreaking glue-line are the acrylate pressure-sensitive adhesive layer that branch has double bond, and the UV visbreaking glue-line is by UV visbreaking glue It is made after water is dry, the UV visbreaking glue includes the raw material of following parts by weight:
The branch is synthesized with the acrylate pressure-sensitive adhesive of double bond by following manner: the acrylic acid for containing hydroxyl with branch Ester pressure-sensitive is starting material, with monoisocyanates acrylate reactions, obtains the Acrylate pressure sensitive that the branch has double bond Glue.100kg branch contains the acrylate pressure-sensitive adhesive of hydroxyl, 5kg monoisocyanates acrylate, 35g dilauryl butyl tin, 35g p methoxy phenol is added in reaction kettle, 70 DEG C of reaction 3h.
The crosslinking agent is isocyanates crosslinking agent.
The photoinitiator is benzophenone.
The solvent is in acetone.
The base material film is transparent PO film, and the base material film film thickness is 50 μm, and sided corona treatment is done on surface, and corona value >=38 reach Cause.
The release film is PET film, and the release film film thickness is 30 μm, and release processing, off-type force 40g are in surface.
The preparation method of the UV visbreaking protective film for lithium battery packaging, comprising the following steps:
(1) acrylate pressure-sensitive adhesive by branch with double bond, crosslinking agent, photoinitiator, solvent are mixed according to aforementioned proportion It closes, and is stirring evenly, obtain UV visbreaking glue;
(2) UV visbreaking glue is coated on the corona surface of base material film, is dried at a certain temperature, be then bonded release film Layer upper surface obtains UV visbreaking adhesive tape.
(3) the UV visbreaking adhesive tape posted is cured into certain time at a certain temperature and is used for lithium electricity to get to described The UV visbreaking protective film of pond packaging.
In the step (1), mixing speed 1000rpm, mixing time 10min;In the step (2), drying temperature Degree is 100 DEG C, drying time 5min;In the step (3), curing temperature is 60 DEG C, and the curing time is 2 days.
Embodiment 4
It is a kind of for lithium battery packaging UV visbreaking protective film, including set gradually base material film, UV visbreaking glue-line and from Type film, the UV visbreaking glue-line are the acrylate pressure-sensitive adhesive layer that branch has double bond, and the UV visbreaking glue-line is by UV visbreaking glue It is made after water is dry, the UV visbreaking glue includes the raw material of following parts by weight:
The branch is synthesized with the acrylate pressure-sensitive adhesive of double bond by following manner: the acrylic acid for containing carboxyl with branch Ester pressure-sensitive is starting material, is reacted with glycidyl methacrylate, and the acrylate pressure that the branch has double bond is obtained Quick glue.100kg branch contains the acrylate pressure-sensitive adhesive of carboxyl, 5kg glycidyl methacrylate, 35g triphenylphosphine, 35g p methoxy phenol is added in reaction kettle, 120 DEG C of reaction 5h.
The crosslinking agent is metallic-ion crosslinking agent, aziridines crosslinking agent and isocyanates crosslinking agent according to quality Than being compounded for 2:1.5:1.
The photoinitiator is 1- hydroxycyclohexyl phenyl ketone, 2- methyl-1-(4- methyl mercapto phenyl)-2- morpholinyl- 1- acetone and benzophenone are compounded according to mass ratio for 1:0.5:1.
Preferably, the base material film is the composite membrane of transparent PP film, PVC film and PU film composition, and the base material film film thickness is Sided corona treatment, corona value >=38 dyne are done in 100m, surface.
The release film is PET film, and the release film film thickness is 20 μm, and release processing, off-type force 35g are in surface.
The preparation method of the UV visbreaking protective film for lithium battery packaging, comprising the following steps:
(1) acrylate pressure-sensitive adhesive by branch with double bond, crosslinking agent, photoinitiator, solvent are mixed according to aforementioned proportion It closes, and is stirring evenly, obtain UV visbreaking glue;
(2) UV visbreaking glue is coated on the corona surface of base material film, is dried at a certain temperature, be then bonded release film Layer upper surface obtains UV visbreaking adhesive tape.
(3) the UV visbreaking adhesive tape posted is cured into certain time at a certain temperature and is used for lithium electricity to get to described The UV visbreaking protective film of pond packaging.
In the step (1), mixing speed 1500rpm, mixing time 15min;In the step (2), drying temperature Degree is 100 DEG C, drying time 8min;In the step (3), curing temperature is 70 DEG C, and the curing time is 2 days.
The performance obtained for being used for UV visbreaking protective film and GPF (General Protection False film that lithium battery is packed in 1-4 of the embodiment of the present invention Comparison is as follows:
Above-described embodiment is the preferable implementation of the present invention, and in addition to this, the present invention can be realized with other way, Do not depart under the premise of present inventive concept it is any obviously replace it is within the scope of the present invention.

Claims (10)

1. a kind of UV visbreaking protective film for lithium battery packaging, including base material film, the UV visbreaking glue-line and release set gradually Film, it is characterised in that: the UV visbreaking glue-line be branch have double bond acrylate pressure-sensitive adhesive layer, the UV visbreaking glue-line by It is made after UV visbreaking glue dries, the UV visbreaking glue includes the raw material of following parts by weight:
2. the UV visbreaking protective film according to claim 1 for lithium battery packaging, it is characterised in that: the branch has The acrylate pressure-sensitive adhesive of double bond is synthesized by following manner: the acrylate pressure-sensitive adhesive of hydroxyl is contained as starting material using branch, with Monoisocyanates acrylate reactions obtain the acrylate pressure-sensitive adhesive that the branch has double bond.
3. the UV visbreaking protective film according to claim 1 for lithium battery packaging, it is characterised in that: the branch has The acrylate pressure-sensitive adhesive of double bond is synthesized by following manner: the acrylate pressure-sensitive adhesive of carboxyl is contained as starting material using branch, with Glycidyl methacrylate reaction obtains the acrylate pressure-sensitive adhesive that the branch has double bond.
4. the UV visbreaking protective film according to claim 1 for lithium battery packaging, it is characterised in that: the crosslinking agent is One in metallic-ion crosslinking agent, aziridines crosslinking agent, isocyanates crosslinking agent, amine cross-linking agent and epoxies crosslinking agent Kind is several.
5. the UV visbreaking protective film according to claim 1 for lithium battery packaging, it is characterised in that: the photoinitiator For 1- hydroxycyclohexyl phenyl ketone, 2- hydroxy-methyl phenyl-propane-1- ketone, 2- methyl-1-(4- methyl mercapto phenyl)-2- Quinoline base -1- acetone, benzoin dimethylether, benzophenone, 2- isopropyl thioxanthone, 2,4,6- (trimethylbenzoyl)-two One or more of phenyl phosphine oxide.
6. the UV visbreaking protective film according to claim 1 for lithium battery packaging, it is characterised in that: the solvent is second One or more of acetoacetic ester, toluene, acetone.
7. the UV visbreaking protective film according to claim 1 for lithium battery packaging, it is characterised in that: the base material film is One of transparent PP film, PET film, PO film, PI film, PVC film, PU film or MULTILAYER COMPOSITE, the base material film film thickness are 6-100 μ Sided corona treatment is done on m, surface.
8. the UV visbreaking protective film according to claim 1 for lithium battery packaging, it is characterised in that: the release film is PET film or PP film, the release film film thickness are 16-50 μm, and release processing, off-type force 5-50g are in surface.
9. a kind of preparation method of the described in any item UV visbreaking protective films for lithium battery packaging of claim 1-8, special Sign is, comprising the following steps:
(1) branch is mixed according to the above mentioned proportion with acrylate pressure-sensitive adhesive, crosslinking agent, photoinitiator, the solvent of double bond, and It is stirring evenly, is obtaining UV visbreaking glue;
(2) UV visbreaking glue is coated on the corona surface of base material film, is dried at a certain temperature, be then bonded the release of release film Face obtains UV visbreaking adhesive tape.
(3) the UV visbreaking adhesive tape posted is cured into certain time at a certain temperature and is used for lithium battery pack to get to described The UV visbreaking protective film of dress.
10. the preparation method of the UV visbreaking protective film according to claim 9 for lithium battery packaging, it is characterised in that: In the step (1), mixing speed 500-2000rpm, mixing time 5-20min;In the step (2), drying temperature It is 50-120 DEG C, drying time 1-10min;In the step (3), curing temperature is 40-80 DEG C, and the curing time is 1-4 days.
CN201810096781.7A 2018-01-31 2018-01-31 A kind of UV visbreaking protective film and preparation method thereof for lithium battery packaging Pending CN110093115A (en)

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CN110408351A (en) * 2019-06-28 2019-11-05 昆山博益鑫成高分子材料有限公司 A kind of UV visbreaking adhesive resistant to high temperature and protection membrane preparation method
CN110564318A (en) * 2019-09-23 2019-12-13 上海精珅新材料有限公司 process film production method capable of viewing UV viscosity reduction degree and product thereof
WO2021097901A1 (en) * 2019-11-22 2021-05-27 苏州高泰电子技术股份有限公司 Uv viscosity-reducing composition and uv viscosity-reducing adhesive tape having same
CN113061402A (en) * 2021-03-17 2021-07-02 上海精珅新材料有限公司 UV (ultraviolet) tackifying film and preparation method and application thereof
CN113122155A (en) * 2021-03-05 2021-07-16 常州都铂高分子有限公司 Easy-reworking UV irradiation strippable pressure-sensitive adhesive tape for packaging lithium battery shell
CN113174213A (en) * 2021-03-17 2021-07-27 上海精珅新材料有限公司 Process film for FPC (Flexible printed Circuit) manufacturing process and preparation method and application thereof
CN114015388A (en) * 2021-12-20 2022-02-08 苏州赛伍应用技术股份有限公司 Hydroxyl-containing viscose reducing agent composition and preparation method and application thereof
CN114196354A (en) * 2021-12-20 2022-03-18 苏州赛伍应用技术股份有限公司 Carboxyl-containing viscose reducing composition and preparation method and application thereof
CN114644900A (en) * 2022-04-06 2022-06-21 中国乐凯集团有限公司 UV (ultraviolet) viscosity-reducing composition, UV viscosity-reducing adhesive tape and method for preparing UV viscosity-reducing adhesive tape
CN115746757A (en) * 2022-11-24 2023-03-07 威士达半导体科技(张家港)有限公司 UV (ultraviolet) adhesive reducing agent and preparation method thereof, UV adhesive reducing tape and preparation method thereof
CN115746715A (en) * 2022-11-30 2023-03-07 浙江工业大学 High-temperature-resistant UV-cured peelable elastic adhesive and synthesis process thereof

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Cited By (12)

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Publication number Priority date Publication date Assignee Title
CN110408351A (en) * 2019-06-28 2019-11-05 昆山博益鑫成高分子材料有限公司 A kind of UV visbreaking adhesive resistant to high temperature and protection membrane preparation method
CN110564318A (en) * 2019-09-23 2019-12-13 上海精珅新材料有限公司 process film production method capable of viewing UV viscosity reduction degree and product thereof
WO2021097901A1 (en) * 2019-11-22 2021-05-27 苏州高泰电子技术股份有限公司 Uv viscosity-reducing composition and uv viscosity-reducing adhesive tape having same
CN113122155A (en) * 2021-03-05 2021-07-16 常州都铂高分子有限公司 Easy-reworking UV irradiation strippable pressure-sensitive adhesive tape for packaging lithium battery shell
CN113061402A (en) * 2021-03-17 2021-07-02 上海精珅新材料有限公司 UV (ultraviolet) tackifying film and preparation method and application thereof
CN113174213A (en) * 2021-03-17 2021-07-27 上海精珅新材料有限公司 Process film for FPC (Flexible printed Circuit) manufacturing process and preparation method and application thereof
CN114015388A (en) * 2021-12-20 2022-02-08 苏州赛伍应用技术股份有限公司 Hydroxyl-containing viscose reducing agent composition and preparation method and application thereof
CN114196354A (en) * 2021-12-20 2022-03-18 苏州赛伍应用技术股份有限公司 Carboxyl-containing viscose reducing composition and preparation method and application thereof
CN114015388B (en) * 2021-12-20 2023-12-01 苏州赛伍应用技术股份有限公司 Hydroxyl-containing viscose-reducing composition and preparation method and application thereof
CN114644900A (en) * 2022-04-06 2022-06-21 中国乐凯集团有限公司 UV (ultraviolet) viscosity-reducing composition, UV viscosity-reducing adhesive tape and method for preparing UV viscosity-reducing adhesive tape
CN115746757A (en) * 2022-11-24 2023-03-07 威士达半导体科技(张家港)有限公司 UV (ultraviolet) adhesive reducing agent and preparation method thereof, UV adhesive reducing tape and preparation method thereof
CN115746715A (en) * 2022-11-30 2023-03-07 浙江工业大学 High-temperature-resistant UV-cured peelable elastic adhesive and synthesis process thereof

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