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Polyacrylate solvent-type acid-base-resistant pressure-sensitive adhesive tape and preparation method and application thereof

A polyacrylate, solvent-based technology, used in adhesive types, pressure-sensitive films/sheets, ester copolymer adhesives, etc., can solve the problem that product quality cannot meet application requirements, acid and alkali resistance and temperature resistance Gap and other issues, to avoid appearance defects, improve overall performance, and enhance the formation of polymer networks

Inactive Publication Date: 2018-09-04
东莞市方恩电子材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After 2007, although some domestic companies have produced similar products, the product quality still cannot meet the application requirements, and the acid and alkali resistance and temperature resistance are still far behind the products of multinational companies.

Method used

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  • Polyacrylate solvent-type acid-base-resistant pressure-sensitive adhesive tape and preparation method and application thereof
  • Polyacrylate solvent-type acid-base-resistant pressure-sensitive adhesive tape and preparation method and application thereof
  • Polyacrylate solvent-type acid-base-resistant pressure-sensitive adhesive tape and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] 1. Preparation method:

[0039] (1) Put 400 parts of butyl acrylate, 8 parts of acrylic acid, 4 parts of methacrylic acid, 6 parts of hydroxypropyl acrylate, 12 parts of methyl methacrylate, and 10 parts of lauryl acrylate in a stirring tank and mix them to obtain monomer mixture.

[0040] (2) Weigh 100 parts of xylene, 400 parts of ethyl acetate and 0.03 part of n-dodecyl mercaptan at the bottom of the reaction kettle as the bottom material.

[0041] (3) Weigh 1 part of benzoyl peroxide and dissolve it in 50 parts of butyl acetate to completely prepare the initiator, and divide it into three parts according to the mass ratio of 10:5:2;

[0042] (4) The temperature of the reaction kettle is raised to 78-82°C of the solution, 30 parts of the initiator are added, and 132 parts of the monomer mixture of step 1 are added at the same time, and kept for 10 minutes; 308 parts of the remaining monomer mixture in step 1 are added dropwise while 15 parts of the initiator Adding...

Embodiment 2

[0057] 1. Preparation method:

[0058] (1) Put 360 parts of isooctyl acrylate, 8 parts of acrylic acid, 4 parts of methacrylic acid, 6 parts of hydroxypropyl acrylate, 30 parts of methyl methacrylate, 20 parts of lauryl acrylate and 22 parts of vinyl acetate in a stirring The kettle was stirred and mixed to obtain a monomer mixture.

[0059] (2) Weigh 50 parts of toluene, 450 parts of ethyl acetate and 0.03 part of n-dodecyl mercaptan at the bottom of the reaction kettle as the bottom material.

[0060] (3) Weigh 1.2 parts of benzoyl peroxide and dissolve in 50 parts of butyl acetate to completely prepare the initiator, and divide it into three parts according to the mass ratio of 10:5:2;

[0061] (4) The reaction kettle is heated up to the solution reflux temperature of 78-82°C, 30.3 parts of initiator are added, and 135 parts of the monomer mixture in step 1 are added at the same time, and the temperature is kept at 78-82°C for 10 minutes; the remaining monomer in step 1 is...

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PUM

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Abstract

The invention belongs to the technical field of an adhesive and adhesive tape for lithium ion batteries and discloses a polyacrylate solvent-type acid-base-resistant pressure-sensitive adhesive tape and a preparation method and application thereof. The preparation method comprises mixing a hard monomer, a soft monomer and a functional monomer, adding a chain transfer agent and a solvent into the mixture, adding an initiator to cause a reaction, adding a curing agent and color paste into the reaction product, and carrying out coating and drying to obtain the polyacrylate solvent-type acid-base-resistant pressure-sensitive adhesive. The mass ratio of the hard monomer, the soft monomer to the functional monomer is (80 to 95): (1 to 15): (2 to 5). The pressure-sensitive adhesive can resist acid and alkali corrosion and is particularly resistant to corrosion of weakly acidic lithium ion battery electrolytes. The pressure-sensitive adhesive and tape have excellent high-temperature and electrolyte resistance, can meet the performance requirements of large power lithium-ion battery tapes and have high cost performance.

Description

technical field [0001] The invention belongs to the technical field of glue and tape for lithium ion batteries, and more specifically relates to a polyacrylate solvent-type acid and alkali resistant pressure-sensitive adhesive tape and its preparation method and application. Background technique [0002] Pressure-sensitive adhesive tape is a widely used material, which plays an important role in industrial packaging, electronic and electrical manufacturing and engineering applications. According to the different characteristics of various pressure-sensitive tapes, there are some special process tapes and functional tapes in various industries. The tape manufacturing and application industries are generally called special pressure-sensitive tapes. [0003] There are many kinds of special tapes, and different types of tapes have different performance requirements for pressure-sensitive adhesives. In addition to ensuring the three major mechanical performance indicators of tra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/38C09J7/25C09J133/08C09J11/06C08F220/18C08F220/06C08F220/20C08F220/14C08F218/08
CPCC08F220/18C08F220/1804C08F220/1808C09J7/255C09J7/385C09J11/06C09J133/14C09J2203/33C09J2467/006C08K5/29C08F220/06C08F220/20C08F220/14C08F220/1812C08F218/08
Inventor 孙大伟
Owner 东莞市方恩电子材料科技有限公司
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