CN110128986A - A kind of polyester-type compound adhesive for lithium battery aluminum-plastic film - Google Patents
A kind of polyester-type compound adhesive for lithium battery aluminum-plastic film Download PDFInfo
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- CN110128986A CN110128986A CN201910428644.3A CN201910428644A CN110128986A CN 110128986 A CN110128986 A CN 110128986A CN 201910428644 A CN201910428644 A CN 201910428644A CN 110128986 A CN110128986 A CN 110128986A
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- 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
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4202—Two or more polyesters of different physical or chemical nature
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- 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
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4205—Polycondensates having carboxylic or carbonic ester groups in the main chain containing cyclic groups
- C08G18/4208—Polycondensates having carboxylic or carbonic ester groups in the main chain containing cyclic groups containing aromatic groups
- C08G18/4211—Polycondensates having carboxylic or carbonic ester groups in the main chain containing cyclic groups containing aromatic groups derived from aromatic dicarboxylic acids and dialcohols
- C08G18/4213—Polycondensates having carboxylic or carbonic ester groups in the main chain containing cyclic groups containing aromatic groups derived from aromatic dicarboxylic acids and dialcohols from terephthalic acid and dialcohols
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- 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
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4205—Polycondensates having carboxylic or carbonic ester groups in the main chain containing cyclic groups
- C08G18/4208—Polycondensates having carboxylic or carbonic ester groups in the main chain containing cyclic groups containing aromatic groups
- C08G18/4211—Polycondensates having carboxylic or carbonic ester groups in the main chain containing cyclic groups containing aromatic groups derived from aromatic dicarboxylic acids and dialcohols
- C08G18/4216—Polycondensates having carboxylic or carbonic ester groups in the main chain containing cyclic groups containing aromatic groups derived from aromatic dicarboxylic acids and dialcohols from mixtures or combinations of aromatic dicarboxylic acids and aliphatic dicarboxylic acids and dialcohols
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- 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
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4205—Polycondensates having carboxylic or carbonic ester groups in the main chain containing cyclic groups
- C08G18/4208—Polycondensates having carboxylic or carbonic ester groups in the main chain containing cyclic groups containing aromatic groups
- C08G18/4211—Polycondensates having carboxylic or carbonic ester groups in the main chain containing cyclic groups containing aromatic groups derived from aromatic dicarboxylic acids and dialcohols
- C08G18/4219—Polycondensates having carboxylic or carbonic ester groups in the main chain containing cyclic groups containing aromatic groups derived from aromatic dicarboxylic acids and dialcohols from aromatic dicarboxylic acids and dialcohols in combination with polycarboxylic acids and/or polyhydroxy compounds which are at least trifunctional
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- 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
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/16—Dicarboxylic acids and dihydroxy compounds
- C08G63/18—Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
- C08G63/181—Acids containing aromatic rings
-
- 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
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/16—Dicarboxylic acids and dihydroxy compounds
- C08G63/18—Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
- C08G63/181—Acids containing aromatic rings
- C08G63/183—Terephthalic acids
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- 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
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/16—Dicarboxylic acids and dihydroxy compounds
- C08G63/20—Polyesters having been prepared in the presence of compounds having one reactive group or more than two reactive groups
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- 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
- C09J167/00—Adhesives based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Adhesives based on derivatives of such polymers
-
- 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
- C09J175/06—Polyurethanes from polyesters
-
- 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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention discloses a kind of polyester-type compound adhesives for lithium battery aluminum-plastic film.Polyester-type compound adhesive of the invention is by solvent method mixing by two kinds of polyester of high glass transition temperature and low Tg as host agent, and using isocyanates as curing agent, polyester-type compound adhesive is thus made.Polyester-type compound adhesive of the invention has excellent toughness and fatigue performance, can solve the key technology difficulty of nylon and aluminium foil bonding in lithium battery aluminum-plastic film industry.
Description
Technical field
The present invention relates to adhesive field, especially a kind of polyester-type compound adhesive for lithium battery aluminum-plastic film.
Background technique
Aluminum plastic film production technology be to be solved in this top hi-tech industry of polymer Li-ion battery it is three big
One of technical problem, product technology content with higher in design, manufacture and its apply upper composite packaging all and commonly
Material has qualitative difference in performance.Up to the present, polymerization can be fully met still without the product of a company in the world
Complex art requirement of the object lithium ion battery to the product.Polymer Li-ion battery require aluminum plastic film barrier property (such as moisture,
Oxygen) it is 10000 times higher than the barrier property of common aluminum-plastic composite membrane.Lithium battery cannot be detached from packaging and exist, the use of aluminum plastic film
The inventory and the service life same period of service life and product.Therefore lithium battery has higher requirement to the service life of aluminum plastic film.Lithium electricity
The use process (constantly charge and discharge process) in pond is a dynamic electrochemical reaction process.Aluminum plastic film is wanted effectively to resist
Electrolyte inside is to its swelling, dissolution, infiltration, absorption and electrochemical reaction.Electrolyte in lithium battery is by a variety of organic
The lithium salts that solvent and chance moisture can generate rapidly strong corrosive hydrofluoric acid exists.A variety of organic solvents would generally be swollen, dissolve, inhale
Aluminum plastic film is received, compound interlayer bond effect is destroyed, changes the concentration of each component in electrolyte, and then influence the electrical property of battery.
The puncture of the necessary resistance to battery battery core week burr of aluminum plastic film inner membrance, under conditions of high temperature and pressure, it is necessary to have insulating properties.
To meet so high performance requirement, present solution is used from outside to inside as nylon membrane, aluminium foil, curtain coating
Three layers of compound aluminum plastic film of polypropylene screen.And the combination of this trilaminate material then needs specific compound adhesive to realize.Currently used for
The compound adhesive of outer layer nylon membrane and aluminium foil bonding is there are many deficiencies on aspect of performance, and most distinct issues have 3, and first just
It is the deficiency of compound adhesive toughness, after deep-draw processing, occurs bubble between aluminium foil and nylon, cause defect；Second, at high temperature
Aluminium foil and nylon delamination；Third not endurance, repeatedly aluminium foil and nylon delamination after bending.
Summary of the invention
To solve problems of the prior art, it is compound to provide a kind of polyester-type for lithium battery aluminum-plastic film by the present invention
Glue.
It is of the invention by the polyester-type compound adhesive of lithium battery aluminum-plastic film in mass ratio based on, by high-vitrification polyester 20-30
Part, 50-60 parts of reduced TG polyester and 1-5 parts of curing agent are dissolved in 200-250 parts of solvent, are made for lithium battery aluminum-plastic film
Polyester-type compound adhesive.
Wherein, the high-vitrification polyester is counted in mass ratio, is prepared from the following raw materials:
The glass transition temperature of the high-vitrification polyester is 60 DEG C -80 DEG C.
In addition, the high-vitrification polyester the preparation method is as follows:
All raw materials are added at one time in pet reaction kettle, ester is carried out under conditions of 300KPa, 180 DEG C -220 DEG C
Change reaction and be slowly extracted into high vacuum after water outlet to be esterified reaches theoretical 90%, it is small that polycondensation reaction 2 is carried out at 250-280 DEG C
When, after polycondensation, discharge, it is cooling, high-vitrification polyester is made.
In addition, the molecular weight 15000-20000 of the high-vitrification polyester, acid value is lower than 1, hydroxyl value 6-10.
Wherein, the reduced TG polyester is counted in mass ratio, is prepared from the following raw materials:
The glass transition temperature of the reduced TG polyester is -30 DEG C -0 DEG C.
In addition, the reduced TG polyester the preparation method is as follows:
All raw materials in addition to end-capping reagent are added at one time in pet reaction kettle, in 300KPa, 180 DEG C -250 DEG C
Under conditions of carry out esterification, after water outlet to be esterified reaches theoretical 90%, be slowly extracted into high vacuum, increase reaction temperature extremely
After 250-280 DEG C, vacuum polycondensation 3 hours, reduction reaction temperature to 200 DEG C or less addition end-capping reagents, after reaction 0.5-1 hours,
Stop reaction, discharges, it is cooling, reduced TG polyester is made.
In addition, the molecular weight 20000-30000 of the reduced TG polyester, acid value 5-8, hydroxyl value 6-10；
The aliphatic dibasic acid is one of succinic acid, glutaric acid, adipic acid and decanedioic acid or a variety of；
The end-capping reagent is trimellitic anhydride.
In addition, the aromatic dibasic acid is one of M-phthalic acid, phthalic acid and terephthalic acid (TPA) or a variety of；
The dihydric alcohol be neopentyl glycol, hexylene glycol, ethylene glycol, butanediol, 1,2- propylene glycol, 2- methyl propanediol, 2,
One of 3- butanediol and 2- methyl -2,4-PD are a variety of；
The catalyst is one of three two ladders of oxidation, antimony acetate, antimony glycol, C-94 and butyl titanate；
The stabilizer is trimethyl phosphate, in triphenyl phosphite, antioxidant 1010, antioxidant SonGnox6260
It is a kind of.
In addition, the curing agent is 2,4- toluene di-isocyanate(TDI), 2,6 toluene di-isocyanate(TDI)s, two isocyanide of hexa-methylene
One of acid esters, naphthalene diisocyanate and L-75.
In addition, the solvent is ethyl acetate, butanone, toluene, dimethyl succinate, dimethyl glutarate, adipic acid two
One of methyl esters and dimethylbenzene are a variety of.
Polyester-type compound adhesive of the present invention possesses excellent toughness, and high and low temperature resistance can satisfy lithium battery plastic-aluminum
The requirement of nylon membrane and aluminium foil is bonded in film.
Specific embodiment
Below with reference to embodiment, the present invention will be described in detail, the description of this part be only it is exemplary and explanatory, no
Reply protection scope of the present invention has any restriction effect.
Experimental method used in following embodiments is conventional method unless otherwise specified.
The materials, reagents and the like used in the following examples is commercially available unless otherwise specified.
Embodiment 1
(1) it prepares high-vitrification polyester: weighing terephthalic acid (TPA) 200g, ethylene glycol 90g, antimony glycol 0.16g and phosphoric acid
Trimethyl 0.05g is added at one time in 1L pet reaction kettle, and esterification is carried out at 300KPa, 180 DEG C, and water outlet to be esterified reaches
To after theoretical 90%, it is slowly extracted into high vacuum, vacuum polycondensation 2 hours at 280 DEG C stop reaction, discharge, and it is cooling, it obtains
High-vitrification polyester.
(2) it prepares reduced TG polyester: weighing adipic acid 150g, terephthalic acid (TPA) 50g, neopentyl glycol 150g, ethylene glycol
Antimony 0.3g and triethyl phosphate 0.1g is added in 1L pet reaction kettle, and esterification is carried out at 300KPa, 250 DEG C, to be esterified
After water outlet reaches theoretical 90%, it is slowly extracted into high vacuum, is maintained at 250 DEG C, after vacuum polycondensation 3 hours, reduces reaction kettle
For temperature to 200 DEG C hereinafter, 5g trimellitic anhydride is added, reaction 0.5 hour stops reaction, discharges, cooling, obtains reduced TG
Polyester.
(3) it prepares polyester-type compound adhesive: weighing high-vitrification polyester 20g obtained in step (1), is made in step (2)
Reduced TG polyester 50g and hexamethylene diisocyanate 1g be dissolved in 200g ethyl acetate, be made for lithium battery plastic-aluminum
The polyester-type compound adhesive of film, is then tested.
Embodiment 2
(1) it prepares high-vitrification polyester: weighing terephthalic acid (TPA) 50g, M-phthalic acid 150g, 2- methyl -2,4- penta 2
Alcohol 78.5g, neopentyl glycol 50g, 2- methyl propanediol 21.5g, butyl titanate 0.16g and triphenyl phosphite 0.05g are primary
Property be added in 1L pet reaction kettle, carry out esterification at 300KPa, 200 DEG C, after water outlet to be esterified reaches theoretical 90%,
It slowly is extracted into high vacuum, vacuum polycondensation 2 hours at 250 DEG C stop reaction, discharge, and it is cooling, obtain high-vitrification polyester.
(2) it prepares reduced TG polyester: weighing adipic acid 100g, decanedioic acid 100g, phthalic acid 50g, isophthalic diformazan
1L polyester is added in sour 50g, butanediol 50g, 1,2- propylene glycol 50g, hexylene glycol 50g, C-94 0.3g and antioxidant 1010 0.1g
In reaction kettle, esterification is carried out at 300KPa, 220 DEG C and is slowly extracted into Gao Zhen after water outlet to be esterified reaches theoretical 90%
Sky is maintained at 280 DEG C, after vacuum polycondensation 3 hours, reduce temperature of reaction kettle to 200 DEG C hereinafter, be added 10g trimellitic anhydride,
After reaction 1 hour, stop reaction, discharges, it is cooling, obtain reduced TG polyester.
(3) it prepares polyester-type compound adhesive: weighing high-vitrification polyester 30g obtained in step (1), is made in step (2)
Reduced TG polyester 60g and L-75 5g be dissolved in 210g butanone, the polyester-type compound adhesive for lithium battery aluminum-plastic film is made,
Then it is tested.
Embodiment 3
(1) prepare high-vitrification polyester: weigh phthalic acid 100g, M-phthalic acid 100g, 1,2- propylene glycol 80g,
2,3-butanediol 70g, antimony acetate 0.16g and antioxidant SonGnox6260 0.05g are added at one time in 1L pet reaction kettle,
300KPa carries out esterification at 240 DEG C and high vacuum is slowly extracted into, at 275 DEG C after water outlet to be esterified reaches theoretical 90%
Lower vacuum polycondensation 2 hours, stop reaction, discharges, it is cooling, obtain high-vitrification polyester.
(2) it prepares reduced TG polyester: weighing succinic acid 100g, glutaric acid 100g, terephthalic acid (TPA) 35g, isophthalic diformazan
It is anti-that 1L polyester is added in sour 50g, 2- methyl propanediol 35g, hexylene glycol 100g, antimony oxide 0.3g and triethyl phosphite 0.1g
It answers in kettle, esterification is carried out at 300KPa, 250 DEG C and is slowly extracted into Gao Zhen after water outlet to be esterified reaches theoretical 90%
Sky is maintained at 250 DEG C, after vacuum polycondensation 3 hours, reduce temperature of reaction kettle to 200 DEG C hereinafter, be added 7g trimellitic anhydride,
Reaction 0.5 hour stops reaction, discharges, cooling, obtains reduced TG polyester.
(3) it prepares polyester-type compound adhesive: weighing high-vitrification polyester 26g obtained in step (1), be made in step (2)
Reduced TG polyester 55g and 2,6 toluene di-isocyanate(TDI) 3g be dissolved in 250g dimethyl succinate, dimethyl glutarate and oneself two
In the mixed solution (mass ratio 1:1:1) of dimethyl phthalate, the polyester-type compound adhesive for lithium battery aluminum-plastic film is made, then carries out
Test.
Embodiment 4
(1) it prepares high-vitrification polyester: weighing terephthalic acid (TPA) 80g, M-phthalic acid 100g, hexylene glycol 80g, butanediol
12.15g, C-94 0.16g and antioxidant 1010 0.05g are added at one time in 1L pet reaction kettle, at 300KPa, 240 DEG C
It carries out esterification and is slowly extracted into high vacuum, vacuum polycondensation 2 is small at 275 DEG C after water outlet to be esterified reaches theoretical 90%
When, stop reaction, discharges, it is cooling, obtain high-vitrification polyester.
(2) it prepares reduced TG polyester: weighing adipic acid 100g, decanedioic acid 100g, terephthalic acid (TPA) 50g, ethylene glycol
40g, hexylene glycol 90g, antimony oxide 0.3g and triethyl phosphite 0.1g are added in 1L pet reaction kettle, in 300KPa, 250
Esterification is carried out at DEG C to be slowly extracted into high vacuum after water outlet to be esterified reaches theoretical 90%, be maintained at 250 DEG C, vacuum
After polycondensation 3 hours, temperature of reaction kettle is reduced to 200 DEG C hereinafter, 7 grams of trimellitic anhydrides are added, is reacted 0.5 hour, reaction is stopped,
Discharging, it is cooling, obtain reduced TG polyester.
(3) it prepares polyester-type compound adhesive: weighing high-vitrification polyester 22g obtained in step (1), is made in step (2)
Reduced TG polyester 59g and 2,4 toluene di-isocyanate(TDI) 4g are dissolved in 230g xylene solution, are made for lithium battery plastic-aluminum
The polyester-type compound adhesive of film, is then tested.
Performance test:
Polyester compound adhesive is coated on aluminium foil, so that solvent is volatilized within 1 minute at 80 DEG C, is then aluminium foil and Buddhist nun by hot-rolling
Imperial film realizes that heat is compound, and heat roller temperature is 70 DEG C, and compound good aluminum plastic film is placed under 65 DEG C of baking ovens and is cured 6 days, is finally carried out
Test, the result is as follows:
The performance of high-vitrification polyester in each embodiment of table 1
The performance of reduced TG polyester in each embodiment of table 2
The performance of the aluminum plastic film as prepared by each embodiment of table 3
Therefore polyester-type compound adhesive prepared by the present invention has excellent toughness and fatigue performance and excellent
Electrolyte resistance, be particularly well adapted for lithium battery aluminum-plastic film nylon layer and aluminium foil it is compound.
The above is only the specific embodiment of the application, is made skilled artisans appreciate that or realizing this Shen
Please.Various modifications to these embodiments will be apparent to one skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the application.Therefore, the application
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. a kind of polyester-type compound adhesive for lithium battery aluminum-plastic film, spy is being that the polyester-type compound adhesive is in mass ratio
Meter, 20-30 parts of high-vitrification polyester, 50-60 parts of reduced TG polyester and 1-5 parts of curing agent are dissolved in 200-250 parts of solvent,
The polyester-type compound adhesive for lithium battery aluminum-plastic film is made.
2. the polyester-type compound adhesive according to claim 1 for lithium battery aluminum-plastic film, which is characterized in that the high glass
Change polyester to count in mass ratio, be prepared from the following raw materials:
Wherein, the glass transition temperature of the high-vitrification polyester is 60 DEG C -80 DEG C.
3. according to right want 2 described in be used for lithium battery aluminum-plastic film polyester-type compound adhesive, which is characterized in that the high-vitrification
Polyester the preparation method is as follows:
All raw materials are added at one time in pet reaction kettle, carry out being esterified under conditions of 300KPa, 180 DEG C -220 DEG C anti-
It answers, after water outlet to be esterified reaches theoretical 90%, is slowly extracted into high vacuum, is carried out polycondensation reaction 2 hours at 250-280 DEG C,
After polycondensation, discharge, it is cooling, high-vitrification polyester is made.
4. according to right want 2 described in be used for lithium battery aluminum-plastic film polyester-type compound adhesive, which is characterized in that the high-vitrification
The molecular weight 15000-20000 of polyester, acid value are lower than 1, hydroxyl value 6-10.
5. the polyester-type compound adhesive according to claim 1 for lithium battery aluminum-plastic film, which is characterized in that the low glass
Change polyester to count in mass ratio, be prepared from the following raw materials:
Wherein, the glass transition temperature of the reduced TG polyester is -30 DEG C -0 DEG C.
6. according to right want 5 described in be used for lithium battery aluminum-plastic film polyester-type compound adhesive, which is characterized in that the reduced TG
Polyester the preparation method is as follows:
All raw materials in addition to end-capping reagent are added at one time in pet reaction kettle, in 300KPa, 180 DEG C -250 DEG C of item
Esterification is carried out under part and is slowly extracted into high vacuum after water outlet to be esterified reaches theoretical 90%, increases reaction temperature to 250-
After 280 DEG C, vacuum polycondensation 3 hours, reduces reaction temperature and stop after reaction 0.5-1 hours to 200 DEG C or less addition end-capping reagents
Reaction discharges, cooling, and reduced TG polyester is made.
7. according to right want 5 described in be used for lithium battery aluminum-plastic film polyester-type compound adhesive, which is characterized in that the reduced TG
The molecular weight 20000-30000 of polyester, acid value 5-8, hydroxyl value 6-10；
The aliphatic dibasic acid is one of succinic acid, glutaric acid, adipic acid and decanedioic acid or a variety of；
The end-capping reagent is trimellitic anhydride.
8. the polyester-type compound adhesive according to claim 2 or 5 for lithium battery aluminum-plastic film, which is characterized in that the virtue
Fragrant binary acid is one of M-phthalic acid, phthalic acid and terephthalic acid (TPA) or a variety of；
The dihydric alcohol is neopentyl glycol, hexylene glycol, ethylene glycol, butanediol, 1,2- propylene glycol, 2- methyl propanediol, 2,3- fourth
One of two pure and mild 2- methyl -2,4-PDs are a variety of；
The catalyst is one of three two ladders of oxidation, antimony acetate, antimony glycol, C-94 and butyl titanate；
The stabilizer is one of trimethyl phosphate, triphenyl phosphite, antioxidant 1010, antioxidant SonGnox6260.
9. the polyester-type compound adhesive according to claim 1 for lithium battery aluminum-plastic film, which is characterized in that the curing agent
For 2,4 toluene diisocyanate, 2,6 toluene di-isocyanate(TDI)s, hexamethylene diisocyanate, naphthalene diisocyanate and L-75
One of.
10. the polyester-type compound adhesive according to claim 1 for lithium battery aluminum-plastic film, which is characterized in that the solvent
For one of ethyl acetate, butanone, toluene, dimethyl succinate, dimethyl glutarate, dimethyl adipate and dimethylbenzene or
It is a variety of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910428644.3A CN110128986A (en) | 2019-05-22 | 2019-05-22 | A kind of polyester-type compound adhesive for lithium battery aluminum-plastic film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910428644.3A CN110128986A (en) | 2019-05-22 | 2019-05-22 | A kind of polyester-type compound adhesive for lithium battery aluminum-plastic film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110128986A true CN110128986A (en) | 2019-08-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910428644.3A Pending CN110128986A (en) | 2019-05-22 | 2019-05-22 | A kind of polyester-type compound adhesive for lithium battery aluminum-plastic film |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103820067A (en) * | 2014-02-18 | 2014-05-28 | 南通高盟新材料有限公司 | Back glue composition for dry method PU(polyurethane) thermal transfer and its preparation method |
| CN103975035A (en) * | 2012-11-01 | 2014-08-06 | 东洋油墨Sc控股株式会社 | Polyurethane adhesive for packaging materials for batteries, packaging material for batteries, battery container, and battery |
| CN105122495A (en) * | 2013-02-25 | 2015-12-02 | 东洋油墨Sc控股株式会社 | Polyurethane adhesive for packaging materials for batteries, packaging material for batteries, container for batteries, and battery |
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2019
- 2019-05-22 CN CN201910428644.3A patent/CN110128986A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103975035A (en) * | 2012-11-01 | 2014-08-06 | 东洋油墨Sc控股株式会社 | Polyurethane adhesive for packaging materials for batteries, packaging material for batteries, battery container, and battery |
| CN105122495A (en) * | 2013-02-25 | 2015-12-02 | 东洋油墨Sc控股株式会社 | Polyurethane adhesive for packaging materials for batteries, packaging material for batteries, container for batteries, and battery |
| CN103820067A (en) * | 2014-02-18 | 2014-05-28 | 南通高盟新材料有限公司 | Back glue composition for dry method PU(polyurethane) thermal transfer and its preparation method |
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Application publication date: 20190816 |