Addition heat-conducting self-adhesive silicone rubber and preparation method thereof

A silicone rubber, self-adhesive technology, used in adhesives, adhesive additives, non-polymer adhesive additives, etc., can solve the problems of time-consuming, labor-intensive, unfavorable production and processing, and achieve the effect of enhancing the bonding effect

Inactive Publication Date: 2016-02-10
SUZHOU TIANMAI THERMAL TECH
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  • Abstract
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Problems solved by technology

This is not conducive to production and pro

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[0018] The preferred embodiments of the present invention are described in detail below, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to make a clearer and clearer definition of the protection scope of the present invention.

[0019] An addition type thermally conductive self-adhesive silicone rubber. The components of the silicone rubber are resin, reinforcing filler, thermally conductive filler, silane coupling agent and titanate coupling agent, wherein the weight ratio of resin to thermally conductive filler is 1: 3~1:20; the weight ratio of resin and reinforcing filler is 1:0.01~1:1; the weight ratio of resin and silane coupling agent is 1:0.01~1:0.5; silane coupling agent and titanate coupling The weight ratio of the coupling agent is 1:0.01 to 1:0.5.

[0020] The resin is a mixture of vinyl silicone oil, hydrogen-containing silicone oil, inhibitor, catalyst and coupling agent. The thermally cond...

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Abstract

The invention relates to the field of thermal interface materials, and provides addition heat-conducting self-adhesive silicone rubber which comprises the ingredients of resin, a reinforcing filler, a heat-conducting filler, a silane coupling agent and a titanate coupling agent. The invention further provides a preparation method of the addition heat-conducting self-adhesive silicone rubber. The preparation method comprises the following steps: A, weighing proper quantities of raw materials according to the proportion of the raw materials; B, pretreating the heat-conducting filler with the silane coupling agent and the titanate coupling agent; C, mixing resin and the reinforcing filler in a kneader to obtain a uniform mixture, and grinding the uniform mixture with a grinding machine till the reinforcing filler is dispersed uniformly; D, putting materials obtained in the step B and the step C into the kneader, and carrying out heating, vacuumizing and uniform stirring. The self-adhesive silicone rubber can perform a bonding effect as soon as being directly cured at high temperature during bonding. The preparation method has the advantage that the bonding effect of the silicone rubber is enhanced effectively.

Description

technical field [0001] The invention relates to the field of thermal interface materials, in particular to a heat-conducting silica gel with good adhesiveness and a preparation method thereof. Background technique [0002] The heat dissipation problem of electronic products is a very important problem in the field of electronic products. The traditional way to solve the heat dissipation of electronic equipment is to place a layer of insulating medium between the heating body and the heat sink as a heat-conducting material, such as mica, polytetrafluoroethylene and alumina ceramics, etc. This method has certain effects, but There are disadvantages such as poor thermal conductivity, low mechanical properties, and high price. Compared with traditional heat-conducting materials, heat-conducting polymer materials are being used in microelectronics, electrical engineering, LED lighting, chemical heat exchangers, solar energy, Aerospace, national defense and military industries h...

Claims

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Application Information

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IPC IPC(8): C09J183/07C09J183/05C09J11/04
Inventor 丁幸强
Owner SUZHOU TIANMAI THERMAL TECH
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