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Heat conduction mixing silicon rubber through combination of alumina and magnesium carbonate

A technology for mixing silicone rubber and alumina, which is applied in the field of rubber products, can solve the problems of poor performance of thermally conductive mixed silicone rubber, and achieve the effect of convenient preparation, good performance and positive color

Inactive Publication Date: 2015-02-04
ANHUI AOFENG AUTOMOBILE FITTINGS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thermally conductive mixed silicone rubber prepared in this way has poor performance

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0014] A kind of aluminum oxide and magnesium carbonate are mixed and used to prepare heat-conductive mixing silicone rubber, consist of the following components by weight,

[0015] 70 parts of methyl vinyl silicone rubber raw rubber, 60 parts of alumina powder, 7 parts of magnesium carbonate, 25 parts of fumed white carbon black, 3 parts of dimethyl-chlorosilane, 4 parts of nano-ferric oxide, 0.8 parts of glacial acetic acid 1.5 parts of vinyl silicone oil, 2 parts of silicon carbide whiskers, 2.5 parts of magnesium borate whiskers, 1.5 parts of dibutyl phthalate, 1.5 parts of isophthalate, 1.5 parts of dimethyl adipate, 1.5 parts of hydroxyethyl cellulose, 1.5 parts of melamine cyanurate.

[0016] Another object of the present invention is to provide a kind of preparation method of aluminum oxide and magnesium carbonate and use the preparation thermal conductivity mixing silicone rubber, it is characterized in that:

[0017] a. Add alumina powder, magnesium carbonate, fumed...

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PUM

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Abstract

The invention relates to a heat conduction mixing silicon rubber through combination of alumina and magnesium carbonate. The heat conduction mixing silicon rubber is characterized by comprising, by weight, 60-80 parts of a methyl vinyl silicon rubber crude rubber, 50-70 parts of alumina, 5-10 parts of magnesium carbonate, 20-30 parts of fumed silica, 2-4 parts of dimethyl-chlorosilane, 3-5 parts of nanometer ferric oxide, 0.5-1 part of glacial acetic acid, 1-2 parts of vinyl silicone oil, 2-2.5 parts of silicon carbide crystal whisker, 2-2.5 parts of magnesium borate crystal whisker, 1-1.5 parts of dibutyl phthalate, 1-1.5 parts of isophthalate, 1-1.5 parts of dimethyl adipate, 1.5-2 parts of hydroxyethyl cellulose, and 1-1.5 parts of melamine cyanurate. The heat conduction mixing silicon rubber has characteristics of simple component and convenient preparation, wherein the alumina and the magnesium carbonate are combined, such that the prepared mixing silicon rubber has characteristics of good performance, no odor, good color and good heat conductivity.

Description

technical field [0001] The invention relates to the technical field of rubber products, in particular to a thermally conductive mixed silicone rubber prepared by using aluminum oxide and magnesium carbonate. Background technique [0002] Silicone rubber is divided into heat vulcanization type and room temperature vulcanization type, and the room temperature vulcanization type is divided into polycondensation reaction type and addition reaction type. High temperature silicone rubber is mainly used to manufacture various silicone rubber products, while room temperature silicone rubber is mainly used as adhesive, potting material or mold. The thermal vulcanization type is used in the largest amount, and the thermal vulcanization type is divided into methyl silicone rubber, methyl vinyl silicone rubber, methyl vinyl phenyl silicone rubber, and other silicone rubber and fluorosilicone rubber. Among many synthetic rubbers, silicone rubber is one of the best. It is odorless and n...

Claims

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Application Information

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IPC IPC(8): C08L83/07C08K13/04C08K3/22C08K3/26C08K3/36C08K5/12C08K5/11C08K5/3492C08K7/10
Inventor 张安民许容毅张辉
Owner ANHUI AOFENG AUTOMOBILE FITTINGS
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