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

An acrylate and silicone resin technology, used in 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: 2012-05-30
INST OF PETROCHEM HEILONGJIANG ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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] Specific embodiment 1: The preparation method of the high-strength heat-resistant silicone resin modified acrylate pressure-sensitive adhesive of this embodiment is carried out in the following steps: 1. Weigh 70%-85% soft monomer and 15% respectively 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); 2. Weigh dibenzoyl peroxide (BPO), MQ silicone resin and solvent, respectively, where the quality of dibenzoyl peroxide (BPO) is the soft 0.5% to 1.5% of the sum of the mass of monomer and hard monomer, the mass of MQ silicone resin is 5% to 17% of the sum of the mass of soft monomer and hard monomer in step 1, the mass of solvent is soft monomer, hard monomer The sum of the mass of monomer and MQ silicone resin; MQ silicone resin is methyl MQ silicone resin, methyl vinyl MQ silicone resin, methyl phenyl MQ ...

specific Embodiment approach 2

[0023] Specific embodiment two: this embodiment is different from specific embodiment one in that in step one, 72% to 83% of soft monomer and 17% to 28% of hard monomer are respectively weighed according to mass percentage. Others are the same as the first embodiment.

specific Embodiment approach 3

[0024] Specific embodiment three: this embodiment is different from specific embodiment one in that in step one, 78% of the soft monomer and 22% of the hard monomer are respectively weighed by mass percentage. Others are the same as 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 adhesive (PSA) in industry, agriculture, transportation, medical treatment, national defense and people's daily life is increasing, and the requirements put forward are also increasing. The National Eleventh Five-Year Plan also clearly proposes to study high-performance, high-quality pressure-sensitive adhesives and products. From a comprehensive point of view of the current practical application of pressure-sensitive adhesives, to prepare pressure-sensitive adhesives with high strength and good heat resistance, it is difficult to obtain good results with only one type of resin, and it must be modified. Polyacrylate pressure-sensitive adhesives are widely used due to their excellent bonding properties and chemical stability, as we...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J151/08C09J7/02C08F283/12C09J175/04C08G18/62C08G18/61
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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