Heat-conducting silicone rubber

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...

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