A kind of silane-modified acrylic resin, synthesis method and primer for silicone rubber

A technology of acrylic resin and silane modification, applied in the direction of coating, etc., can solve the problems of long curing time, high curing temperature, poor bonding performance, etc., achieve reduced bonding and curing stability, strong bonding effect, and improve processing The effect of production efficiency

Active Publication Date: 2022-06-28
SHENZHEN KANGLIBANG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to improve the poor bonding performance of the existing silicone rubber primer, the defects of high curing temperature and long curing time, the application provides a silane-modified acrylic resin, a synthesis method and a primer for silicone rubber

Method used

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  • A kind of silane-modified acrylic resin, synthesis method and primer for silicone rubber
  • A kind of silane-modified acrylic resin, synthesis method and primer for silicone rubber
  • A kind of silane-modified acrylic resin, synthesis method and primer for silicone rubber

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1-6

[0064] A kind of synthetic method of silane-modified acrylic resin, the steps are as follows:

[0065] S1. Weigh (meth)acrylic acid alkyl ester monomers, hydroxy ester monomers, epoxy monomers, vinyl siloxane monomers, and co-crosslinking monomers according to the weight parts shown in Table 1. body and solvent; and sequentially added to a four-necked flask equipped with a stirrer, a thermometer and a reflux device, stirred evenly, and heated to the temperature shown in Table 1; wherein the solvent was first added in an amount of 80%.

[0066] S2. take by weighing the initiator of the weight part shown in table 1 and the solvent of remaining 20% ​​in S1 and mix to obtain initiator solution;

[0067] S3. The initiator solution is added by the multiple dripping method, and 50% of the initiator solution is added dropwise first, and the dropping time and the reaction time are shown in Table 1;

[0068] S4. continue to drip 30% initiator solution, the dripping time is shown in Tab...

preparation example 7-12

[0075] The preparation method, reaction temperature and dropping process of the initiator solution in Preparation Examples 7-12 are the same as those in Preparation Example 2, the difference lies in the raw materials of each component and their contents, as shown in Table 2.

[0076] Table 2 Compositions and dosages of components in Preparation Examples 7-12

[0077]

preparation example 13-18

[0079] The preparation method, reaction temperature and dropping process of the initiator solution of Preparation Examples 13-18 are the same as those of Preparation Example 2, the difference lies in the raw materials of each component and their contents, as shown in Table 3.

[0080] Table 3 Composition and dosage of each component of preparation examples 13-18

[0081]

[0082]

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PUM

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Abstract

The application relates to the technical field of resin synthesis and its application, and specifically discloses a silane-modified acrylic resin, a synthesis method and a primer for silicone rubber. A primer for silicone rubber is prepared by dispersing the above-mentioned silane-modified acrylic resin and silane coupling agent titanate in a solvent for the primer and reacting with a catalyst. The silane-modified acrylic resin of the present application can be used to prepare a primer for silicone rubber, which has the advantages of good adhesion, film-forming property, heat resistance, water resistance, low surface-drying temperature and short time; a silane-modified Acrylic resin, the silane-modified acrylic resin is composed of (meth)acrylic acid alkyl ester monomers, hydroxyl ester monomers, epoxy monomers, vinyl siloxane monomers, cross-linking monomers The silane-modified acrylic resin obtained in this application has excellent cohesive properties and film-forming properties, and is suitable for the preparation of silicone rubber primers. adhesive.

Description

technical field [0001] The present application relates to the technical field of resin synthesis and its application, and more particularly, to a silane-modified acrylic resin, a synthesis method and a primer for silicone rubber. Background technique [0002] Silicone rubber material has great advantages as an electronic packaging material. It emits less heat during curing, requires relatively low curing temperature, basically does not shrink after curing, and can be used in a wide temperature range. [0003] Silicone rubber can be divided into addition type silicone rubber and condensation type silicone rubber according to the curing mechanism. As a kind of silicone product with higher grade, higher product technology content and higher added value, addition type liquid silicone rubber is compared with condensation type silicone rubber. Silicone rubber has outstanding advantages, especially its fast molding speed, high production efficiency, non-toxic, odorless, non-corrosi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/08C09D5/00C09D7/63C09D7/20C08F220/18C08F220/14C08F220/20C08F220/32C08F230/08C08F222/14
Inventor 方锦程齐健康岳胜武
Owner SHENZHEN KANGLIBANG TECH
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