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A kind of heat-resistant acrylate adhesive and its preparation method

A technology of acrylate and butyl acrylate, applied in adhesives, polyurea/polyurethane adhesives, adhesive types, etc., can solve problems such as high temperature resistance requirements, easy softening of the adhesive layer, and failure to peel off normally, achieving Excellent temperature resistance and good chemical resistance

Active Publication Date: 2022-06-24
四川铂利明德科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this field requires high temperature resistance of adhesives, and the acrylic adhesives on the market generally have the problem that the adhesive layer is easy to soften under high temperature, which leads to the failure of normal peeling or the presence of residual adhesive, which limits its application.

Method used

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  • A kind of heat-resistant acrylate adhesive and its preparation method
  • A kind of heat-resistant acrylate adhesive and its preparation method
  • A kind of heat-resistant acrylate adhesive and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] An acrylate adhesive, comprising the following raw materials by weight: 90 parts of butyl acrylate, 5 parts of acrylic acid, 3 parts of hydroxyethyl acrylate, 0.1 part of compound A, 0.1 part of compound B, 0.2 part of azobisisobutyronitrile, 120 parts of butyl acetate. wherein the value of n in compound B is 1.

[0026] The preparation method of the acrylate adhesive is as follows: weighing the above-mentioned raw materials in proportion by weight, then adding butyl acrylate, acrylic acid, hydroxyethyl acrylate, azobisisobutyronitrile, and butyl acetate into the reaction kettle in turn, and reacting Inert gas nitrogen was introduced into the system; mechanical stirring was turned on, and after reacting at 25°C for 30 min, compound A was slowly added for 1 hour, and the reaction was continued for 12 hours after the addition. Subsequently, compound B was added, and the reaction was continued for 12 hours under the condition of 90° C. to complete the reaction, and the fi...

Embodiment 2

[0028] An acrylate adhesive, comprising the following raw materials by weight: 90 parts of butyl acrylate, 2 parts of acrylic acid, 5 parts of hydroxyethyl acrylate, 0.4 parts of compound A, 0.4 part of compound B, 0.2 part of azobisisobutyronitrile, 120 parts of butyl acetate. The n value of compound B is 22.

[0029] The preparation method of the acrylate adhesive is as follows: weighing the above-mentioned raw materials in proportion by weight, then adding butyl acrylate, acrylic acid, hydroxyethyl acrylate, azobisisobutyronitrile, and butyl acetate into the reaction kettle in turn, and reacting Inert gas helium was introduced into the system; mechanical stirring was turned on, and after reacting at 25°C for 30 min, compound A was slowly added for 1 hour, and the reaction was continued for 12 hours. Subsequently, compound B was added, and the reaction was continued for 12 hours under the condition of 90° C. to complete the reaction, and the finished product was discharged....

Embodiment 3

[0031] An acrylate adhesive, comprising the following raw materials by weight: 90 parts of butyl acrylate, 5 parts of acrylic acid, 5 parts of hydroxyethyl acrylate, 0.2 part of compound A, 0.2 part of compound B, 0.2 part of azobisisobutyronitrile, 120 parts of butyl acetate. wherein the n value of compound B is 9.

[0032] The preparation method of the acrylate adhesive is as follows: weighing the above-mentioned raw materials in proportion by weight, then adding butyl acrylate, acrylic acid, hydroxyethyl acrylate, azobisisobutyronitrile, and butyl acetate into the reaction kettle in turn, and reacting Inert gas helium was introduced into the system; mechanical stirring was turned on, and after reacting at 25°C for 30 min, compound A was slowly added for 1 hour, and the reaction was continued for 12 hours. Subsequently, compound B was added, and the reaction was continued for 12 hours under the condition of 90° C. to complete the reaction, and the finished product was disch...

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Abstract

The invention relates to the technical field of new material preparation, in particular to a high-temperature-resistant acrylate adhesive and a preparation method thereof. The adhesive includes the following raw materials in parts by weight: 70-90 parts of butyl acrylate, 1-10 parts of acrylic acid, 0.5-5 parts of hydroxyethyl acrylate, 0.2-1 part of compound A, 0.1-2 parts of compound B, azobis 0.2 parts of isobutyronitrile, 120 parts of butyl acetate. Compared with the traditional technology, the present invention adjusts the glass transition temperature and softening point of the polymer through the addition of compound A and compound B, regulates the cohesive energy and viscosity of the glue, and makes the glue achieve good high temperature resistance.

Description

technical field [0001] The invention relates to the technical field of new material preparation, in particular to a high temperature resistant acrylate adhesive and a preparation method thereof. Background technique [0002] Acrylic adhesives are widely used and are the most widely used type of adhesives in the pressure-sensitive adhesive industry. Acrylic adhesives have the advantages of good adhesion and pressure sensitivity, excellent aging resistance and corrosion resistance, and stable performance. Therefore, acrylate pressure-sensitive adhesives of various structures are synthesized to meet various performance requirements. [0003] Acrylic adhesives are also widely used in the fields of electronic and electrical, optical display, electrical equipment production and packaging. However, in this field, the temperature resistance of adhesives is high, and the acrylic adhesives on the market generally have the problem that the adhesive layer is easily softened under high...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J175/04C08F220/18C08F220/06C08F220/20C08F222/22C08G18/62
CPCC09J175/04C08F220/1804C08G18/6254C08F220/06C08F220/20C08F222/22
Inventor 张维熙钱令习陈伟郑全智宛如晴
Owner 四川铂利明德科技有限公司
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