Acrylate modified rubber pressure-sensitive adhesive, and acrylate modified rubber pressure-sensitive adhesive tape and preparation method thereof

A technology of modifying rubber and acrylate, applied in the field of pressure-sensitive adhesives, can solve the problems of poor aging resistance, low efficiency and poor adhesion of rubber pressure-sensitive adhesives, achieve excellent high viscosity characteristics, enhance adhesion, enhance The effect of cohesion

Inactive Publication Date: 2021-01-08
广东安利华新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, rubber pressure-sensitive adhesives have extremely poor adhesion to common substrates such as PET, and a layer of primer is usually applied first, which increases the cost and reduces the efficiency.
The aging resistance of rubber pressure sensitive adhesive is also poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] An acrylate-modified rubber pressure-sensitive adhesive, comprising the following raw materials in parts by weight: Component A: 40 parts of cis-1,4-polyisoprene, 2 parts of acrylic acid, 30 parts of toluene, 0.2 parts of benzoyl peroxide 1 part, 2 parts of hydroxypropyl methacrylate, component B: 6 parts of terpene resin, 6 parts of coumarone resin, 1 part of glycerin, 0.5 part of anti-aging agent, and 0.6 part of crosslinking agent.

[0019] The anti-aging agent is di-tert-butyl-p-cresol / 2,6-di-tert-butyl-4-methylphenol.

[0020] The crosslinking agent is: isocyanate.

[0021] An acrylate-modified rubber pressure-sensitive adhesive tape as described above comprises a PET base layer and an adhesive coating coated on the PET base layer.

[0022] A method for preparing an acrylate-modified rubber pressure-sensitive adhesive tape as described above, comprising the following steps: 1. Take the raw materials in parts by weight of the formula for use; 2. Preparation of comp...

Embodiment 2

[0026] An acrylate-modified rubber pressure-sensitive adhesive, comprising the following raw materials in parts by weight: Component A: 43 parts of cis-1,4-polyisoprene, 2.5 parts of acrylic acid, 32 parts of toluene, 0.25 parts of benzoyl peroxide Parts, 2.5 parts of hydroxypropyl methacrylate, component B: 6.5 parts of terpene resin, 6.5 parts of coumarone resin, 1.3 parts of glycerin, 0.8 parts of anti-aging agent, 0.65 parts of crosslinking agent.

[0027] The anti-aging agent is di-tert-butyl-p-cresol / 2,6-di-tert-butyl-4-methylphenol.

[0028] The crosslinking agent is: hexamethylene diisocyanate diphenylmethane diisocyanate.

[0029] An acrylate-modified rubber pressure-sensitive adhesive tape as described above comprises a PET base layer and an adhesive coating coated on the PET base layer.

[0030] A method for preparing an acrylate-modified rubber pressure-sensitive adhesive tape as described above, comprising the following steps: 1. Take the raw materials in parts b...

Embodiment 3

[0034] An acrylate-modified rubber pressure-sensitive adhesive, comprising the following raw materials in parts by weight: Component A: 45 parts of cis-1,4-polyisoprene, 3 parts of acrylic acid, 33 parts of toluene, 0.3 parts of benzoyl peroxide 3 parts, 3 parts of hydroxypropyl methacrylate, component B: 7 parts of terpene resin, 7 parts of coumarone resin, 1.5 parts of glycerin, 1 part of antioxidant, 0.7 part of crosslinking agent.

[0035] The anti-aging agent is di-tert-butyl-p-cresol / 2,6-di-tert-butyl-4-methylphenol.

[0036] The crosslinking agent is: isocyanate.

[0037] An acrylate-modified rubber pressure-sensitive adhesive tape as described above comprises a PET base layer and an adhesive coating coated on the PET base layer.

[0038] A method for preparing an acrylate-modified rubber pressure-sensitive adhesive tape as described above, comprising the following steps: 1. Take the raw materials in parts by weight of the formula for use; 2. Preparation of component A...

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PUM

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Abstract

The invention relates to the technical field of pressure-sensitive adhesives, in particular to an acrylate modified rubber pressure-sensitive adhesive, and an acrylate modified rubber pressure-sensitive adhesive tape and a preparation method thereof. The acrylate modified rubber pressure-sensitive adhesive is composed of a component A and a component B. The component A comprises the following rawmaterials by weight: 40-50 parts of cis-1,4-polyisoprene, 2-4 parts of acrylic acid, 30-35 parts of methylbenzene, 0.2-0.4 part of benzoperoxide and 2-4 parts of hydroxypropyl methacrylate. The component B comprises the following raw materials by weight: 6-8 parts of terpene resin, 6-8 parts of coumarone resin, 1-2 parts of glycerol, 0.5-1.5 parts of an anti-aging agent and 0.6-0.8 part of a cross-linking agent. Compared with existing special pressure-sensitive adhesives for PET pressure-sensitive adhesive tapes, the acrylate modified rubber pressure-sensitive adhesive tape of the invention has the characteristics of better aging resistance, better adhesion to a PET base material, higher peel strength and excellent high viscosity.

Description

technical field [0001] The invention relates to the technical field of pressure-sensitive adhesives, in particular to an acrylate-modified rubber pressure-sensitive adhesive, an adhesive tape and a preparation method thereof. Background technique [0002] Rubber has a very high relative molecular weight, and has the ability to crystallize under strain conditions, so it has excellent cohesive strength and stick holding properties. The long-chain structure of rubber molecules endows it with good elasticity under low temperature conditions. There are no polar groups in the rubber, and it is very compatible with non-polar tackifying resins to make rubber pressure-sensitive adhesives. The surface energy of rubber pressure-sensitive adhesive is extremely low, so it has good wettability to the adherend, good initial adhesion, combined with its high cohesive strength, it has strong adhesive performance. However, rubber pressure-sensitive adhesives have extremely poor adhesion to c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/25C09J7/38C09J151/04C09J11/06C09J11/08C08F279/02C08F220/20C08F220/06
CPCC09J7/381C09J7/385C09J7/255C09J151/04C09J11/06C09J11/08C08F279/02C09J2451/00C09J2467/006C08L2205/03C08L2205/02C08K2201/014C08L45/00C08L45/02C08K5/053C08K5/13C08K5/29C08F220/20C08F220/06
Inventor 张涛辉徐智超叶启亮
Owner 广东安利华新材料科技有限公司
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