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Pressure-sensitive adhesive product for battery packaging and preparation method thereof

A technology for pressure-sensitive adhesives and packaging. It is applied in the field of pressure-sensitive adhesives. It can solve the problems of aging resistance and heat and humidity resistance of adhesive threads and battery residues, and achieve strong initial adhesion, strong bonding performance, and high wettability. Effect

Inactive Publication Date: 2019-01-22
WUXI HAITE NEW MATERIAL RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the disadvantages of common pressure-sensitive adhesives on the market, such as warping after long-term storage, glue threads, residual glue on the surface of the battery, and poor aging resistance and humidity resistance, etc. after long-term storage, the invention provides a pressure-sensitive adhesive for battery packaging. Products and their preparation methods

Method used

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  • Pressure-sensitive adhesive product for battery packaging and preparation method thereof
  • Pressure-sensitive adhesive product for battery packaging and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) Add all 17g of SBS rubber into 50g of toluene and 15g of ethyl acetate until completely dissolved, and the reaction temperature is 65-85°C to prepare a mixed solvent;

[0029] (2) After mixing 5g of methyl acrylate, 1g of ethyl acrylate, 10g of butyl acrylate, 2g of hydroxyethyl acrylate, and 0.035g of dibenzoyl peroxide, add it dropwise to the mixed solvent for 1.5h , holding time is 3h;

[0030] (3) Add 0.17g of hydroquinone to terminate the reaction, cool down to 50°C, and discharge;

[0031] (4) Weigh part of the glue solution discharged in step (3) and add hexamethylene diisocyanate in an amount of 0.1% of the weight of the glue solution, fully stir, and coat the obtained glue on a release film at 105°C Cured for 5 minutes, the thickness after curing was controlled at 10 μm, and then transferred to a 50 μm aluminized PET film for testing.

Embodiment 2

[0033] (1) Add 23g of SBS rubber into 50g of toluene and 15g of ethyl acetate until completely dissolved, and the reaction temperature is 65-85°C to prepare a mixed solvent;

[0034] (2) After mixing 2g of methyl acrylate, 0.5g of isobutyl methacrylate, 6g of butyl acrylate, 2g of lauryl methacrylate, 1.5g of acrylic acid, and 0.105g of dibenzoyl peroxide, add dropwise to the mixing In the solvent, the dropping time is 2h, and the holding time is 4h;

[0035] (3) Add 0.23 g of hydroquinone to terminate the reaction and cool down to 50° C., then discharge;

[0036] (4) Take by weighing part of the glue solution discharged in step (3) and add triglycidyl isocyanurate, the consumption is 0.6% of the glue solution weight, fully stir, the gained glue is coated on the release film, 105 ℃ Cured for 5 minutes, the thickness after curing was controlled at 10 μm, and then transferred to a 50 μm aluminized PET film for testing.

Embodiment 3

[0038] (1) Add 28g of SBS rubber into 65g of toluene until completely dissolved, and the reaction temperature is 65-85°C to prepare a mixed solvent;

[0039] (2) After mixing 1g of methyl acrylate, 3g of butyl acrylate, 3g of hydroxypropyl acrylate, and 0.175g of dibenzoyl peroxide, add it dropwise to the mixed solvent. The dropping time is 2.5h, and the holding time is 5h. ;

[0040] (3) Add 0.28 g of hydroquinone to terminate the reaction, cool down to 50° C., and discharge;

[0041] (4) take by weighing the part glue solution of discharging in step (3) and add m-xylylenediamine type epoxy resin, consumption is 1% of glue solution weight, fully stirs, gained glue is coated on the release film, Cured at 105°C for 5 minutes, the thickness after curing was controlled at 10 μm, and then transferred to a 50 μm aluminized PET film for testing.

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Abstract

The invention discloses a pressure-sensitive adhesive product for battery packaging and a preparation method thereof. The pressure-sensitive adhesive product for battery packaging comprises two components A and B. Raw material of the component A comprises (by weight): 17-28% of SBS rubber, 1-6% of a hard monomer, 3-10% of a soft monomer, 0.5-3% of a functional monomer and 65% of a solvent, and aninitiator which accounts for 0.1-0.5% of the total weight of the SBS rubber, the hard monomer, the soft monomer and the functional monomer. The raw material of the component B is a curing agent, whichaccounts for 0.1-1% of the total weight of the component A. The pressure-sensitive adhesive product for battery packaging has strong initial adhesion, adhesive property, aging resistance and resistance to heat and humidity. It is ensured that the pressure-sensitive adhesive product will neither up-warp or draw under the high temperature or hot and humid conditions and if being placed at normal temperature for a long time, nor leave an adhesive mark on the surface of a battery. The product has stable performance and can be used for a long time.

Description

technical field [0001] The invention relates to the field of pressure-sensitive adhesives, in particular to a pressure-sensitive adhesive product for battery packaging and a preparation method thereof. Background technique [0002] The full name of pressure-sensitive adhesive is pressure-sensitive adhesive, commonly known as self-adhesive, its bonding process is very convenient, as long as you apply a little pressure or press it lightly with your fingers, it can be bonded, and it does not need to be used in this process. The action of great pressure, heat or solvents. Therefore, the pressure-sensitive adhesive is called a self-adhesive substance, which is mainly bonded to the surface of the adherend by van der Waals force, and there is no physical and chemical change during the bonding process. Pressure-sensitive adhesive has four main characteristics: ①The bonding process is easy to carry out; ②It is relatively easy to peel off; ③When the pressure-sensitive adhesive is pee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/25C09J7/38C09J153/02C09J133/08
CPCC08L2201/08C09J7/25C09J7/38C09J153/02C09J2301/122C09J2301/302C09J2467/006C08L33/08
Inventor 陈国荣邹婷婷丁荣炎吴秋心白永平李晶波殷晓芬
Owner WUXI HAITE NEW MATERIAL RES INST
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