Heat-conducting silicone rubber

A heat-conducting silicone rubber and raw material technology, applied in the field of rubber, can solve the problems of poor mechanical properties such as tensile strength and tear resistance, poor oil resistance and solvent resistance, and poor physical and mechanical properties, so as to improve mechanical properties and Effect of surface resistance, reduction of volume wear amount, and improvement of wear resistance

Inactive Publication Date: 2015-03-11
滁州君越高分子新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the mechanical properties of silicone rubber such as tensile strength and tear resistance are poor, and its physical and mechanical properties are not as good as most synthetic rubbers at room temperature. Poor, so silicone rubber is not suitable for ordinary conditions, so adding various additives to silicone rubber to improve its inherent properties can improve its overall quality and improve its applicability in various fields

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A heat-conducting silicone rubber is characterized in that it is made up of the following raw materials in parts by weight:

[0021] Aluminum powder 3, graphene 17, ceramic powder 2, lithium carbonate 1, ammonium metavanadate 0.4, ascorbic acid 0.3, polybutylene terephthalate 13, calcium fluoride 3, 1,2-dimethylimidazole 2 , chlorinated paraffin 4, potassium citrate 0.5, dipropylene glycol 0.5, accelerator CA1, rare earth additive 3, methyl vinyl phenyl silicone rubber 108, 1,1-di-tert-butylperoxycyclohexane 2 ;

[0022] Described rare earth additive is made up of the following raw materials of weight part:

[0023] Aluminum magnesium silicate 2, polyvinyl acetal 16, dodecanedioic acid 2, lanthanum chloride 5, methyl nylon acid 0.4, urea 0.6, formaldehyde 2, deionized water 130, ethylenediamine 0.3, calcium zeolite 50 ;

[0024] Mix dodecanedioic acid and lanthanum chloride, add 30% of the weight of the above-mentioned deionized water, stir and mix for 40 minutes, ad...

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Abstract

The invention discloses heat-conducting silicone rubber. The heat-conducting silicone rubber comprises the following raw materials in parts by weight: 3-5 parts of aluminum powder, 12-17 parts of graphene, 2-3 parts of ceramic powder, 1-2 parts of lithium carbonate, 0.4-1 part of ammonium metavanadate, 0.3-1 part of ascorbic acid, 10-13 parts of polybutylene terephthalate, 2-3 parts of calcium fluoride, 1-2 parts of 1, 2-dimethyl imidazole, 2-4 parts of chlorinated paraffin, 0.5-1 part of potassium citrate, 0.5-1 part of dipropylene glycol, 1-2 parts of an accelerant CA, 3-4 parts of a rare earth additive, 100-108 parts of methyl vinyl phenyl silicone rubber and 1-2 parts of 1, 1-di-tetrabutylperoxycyclohexane. The aluminum powder, the graphene, the ceramic powder and the like are added into the heat-conducting silicone rubber provided by the invention, so that the heat-conducting performance of the heat-conducting silicone rubber can be obviously improved, aging of the rubber caused by high temperature and slow heat conduction can be slowed down, the service life of a rubber product is prolonged, and the application range of the silicon rubber is widened.

Description

technical field [0001] The invention mainly relates to the field of rubber, in particular to a heat-conducting silicone rubber. Background technique [0002] Silicone rubber has excellent heat resistance, cold resistance, dielectric properties, ozone resistance and atmospheric aging resistance. The outstanding performance of silicone rubber is that it can be used in a wide temperature range, which can be used at -60°C (or lower temperature) to +250°C. °C (or higher temperature) for long-term use. However, the mechanical properties of silicone rubber such as tensile strength and tear resistance are poor, and its physical and mechanical properties are not as good as most synthetic rubbers at room temperature. Therefore, silicone rubber is not suitable for use in ordinary conditions. Therefore, adding various additives to silicone rubber to improve its inherent properties can improve its overall quality and improve its applicability in various fields. Contents of the inv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/07C08L67/02C08L29/14C08K13/06C08K3/08C08K3/04C08K3/34C08K3/16
Inventor 任兆军
Owner 滁州君越高分子新材料有限公司
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