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Method for preparing high-strength heat-resistant silicon resin modified acrylic ester pressure-sensitive adhesive

A technology of acrylate and silicone resin, applied in the direction of adhesives, polyurea/polyurethane adhesives, film/sheet adhesives, etc., can solve the problems of poor temperature resistance and low peel strength, and achieve good heat resistance Effect

Inactive Publication Date: 2011-02-23
INST OF PETROCHEM HEILONGJIANG ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the problems of low peel strength and poor temperature resistance of existing silicone-modified acrylate pressure-sensitive adhesives, and provides a preparation method for high-strength heat-resistant silicone resin-modified acrylate pressure-sensitive adhesives

Method used

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  • Method for preparing high-strength heat-resistant silicon resin modified acrylic ester pressure-sensitive adhesive
  • Method for preparing high-strength heat-resistant silicon resin modified acrylic ester pressure-sensitive adhesive
  • Method for preparing high-strength heat-resistant silicon resin modified acrylic ester pressure-sensitive adhesive

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specific Embodiment approach 1

[0019]Embodiment 1: The preparation method of the high-strength heat-resistant silicone resin modified acrylate pressure-sensitive adhesive of this embodiment is carried out according to the following steps: 1. Weigh 70% to 85% of the soft monomer and 15% of the soft monomer by mass percentage ~30% hard monomer; soft monomer is one or a combination of butyl acrylate (BA), isooctyl acrylate (EHA) and isodecyl acrylate; hard monomer is methyl methacrylate (MMA), styrene or acrylonitrile (AN); two, take dibenzoyl peroxide (BPO), MQ silicone resin and solvent respectively, wherein the quality of dibenzoyl peroxide (BPO) is soft in step 1 0.5% to 1.5% of the sum of the mass of the monomer and the hard monomer, the mass of the MQ silicone resin is 5% to 17% of the sum of the mass of the soft monomer and the hard monomer in step 1, and the mass of the solvent is 5% to 17% of the mass of the soft monomer and hard monomer. Sum of the mass of monomer and MQ silicone resin; MQ silicone r...

specific Embodiment approach 2

[0023] Embodiment 2: The difference between this embodiment and Embodiment 1 is that in Step 1, 72%-83% of the soft monomer and 17%-28% of the hard monomer are weighed by mass percentage. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0024] Embodiment 3: This embodiment differs from Embodiment 1 in that in step 1, 78% of the soft monomer and 22% of the hard monomer are weighed in percentage by mass. Others are the same as in the first embodiment.

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Abstract

The invention discloses a method for preparing a high-strength heat-resistant silicon resin modified acrylic ester pressure-sensitive adhesive and relates to a method for preparing a modified acrylic ester pressure-sensitive adhesive. The method solves the problems of low peel strength and low temperature resistance of the conventional organic silicon modified acrylic ester pressure-sensitive adhesive. The method may comprise the following steps of: adding part of dibenzoyl peroxide, part of solvents, part of soft monomers and part of hard monomers into a reaction kettle to react; mixing MQ silicon resin, the residual soft monomers, the residual hard monomers, the residual dibenzoyl peroxide and the residual solvents uniformly and adding the mixture into the reaction kettle to react; coating the obtained adhesive solution on a base material; and drying. The method may also comprise the following steps of: adding part of solvents, part of dibenzoyl peroxide, part of soft monomers and part of hard monomers into the reaction kettle to react; mixing a functional monomer, hydroxyl-containing SQ silicon resin, the residual soft monomers, the residual hard monomers, the residual dibenzoyl peroxide and the residual solvents uniformly and adding the mixture into the reaction kettle to react; mixing the obtained adhesive solution and a cross-linking agent uniformly and coating the mixture on the base material; and drying. The high-strength heat-resistant silicon resin modified acrylic ester pressure-sensitive adhesive has the peel strength of 14 to 18 N / 25mm and is applied in the fields of high temperature of 200 DEG C.

Description

technical field [0001] The invention relates to a preparation method of a modified acrylate pressure-sensitive adhesive. Background technique [0002] With the gradual development of economy and science and technology, the demand for pressure-sensitive adhesives (PSA) in industry, agriculture, transportation, medical care, national defense and people's daily life is increasing, and the requirements are getting higher and higher. The National Eleventh Five-Year Plan also clearly proposes to study high-performance, high-quality pressure-sensitive adhesives and products. From the comprehensive point of view of the actual application of pressure-sensitive adhesives at present, in order to prepare pressure-sensitive adhesives with high strength and good heat resistance, it is difficult to obtain good results by using only one type of resin, and must be modified. Polyacrylate pressure-sensitive adhesives are widely used because of their excellent bonding performance and chemical ...

Claims

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Application Information

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IPC IPC(8): C08G18/62C08F283/12C09J151/08C09J175/04C08G18/61C09J7/02
Inventor 张绪刚张斌孙明明李坚辉王磊李奇力
Owner INST OF PETROCHEM HEILONGJIANG ACADEMY OF SCI
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