Heat-resistant silicone rubber insulated cable

Abstract

The invention discloses a heat-resistant silicone rubber insulated cable which is prepared from the following raw materials in parts by weight: 20-30 parts of polypropylene resin, 40-80 parts of methyl vinyl silicone rubber, 10-15 parts of ethylene-vinyl acetate, 5-12 parts of styrene elastomer, 5-10 parts of tributyl citrate, 1-3 parts of 2, 2-dithienyl methyl glycolate, 10 to 25 parts of fumed silica, 15 to 30 parts of precipitated white carbon black, 80 to 160 parts of modified halloysite nanotubes, 8 to 15 parts of a structure control agent, 1 to 3 parts of an accelerant DM and 8 to 14 parts of an insulating aid. According to the invention, the silicone rubber is used as the heat-resistant layer, and the silicone rubber has a stable silicon oxidation chemical structure, can endow the elastomer with unique performance, and has excellent high temperature resistance, chemical resistance, mechanical and electrical properties, natural transparency and semitransparent property.

Description

technical field [0001] The invention relates to the technical field of cable materials, in particular to a heat-resistant silicone rubber insulated cable. Background technique [0002] Among wire and cable insulation and sheath materials, polyvinyl chloride is relatively cheap, has excellent mechanical properties and is easy to process, making it the most widely used material in the wire and cable industry for a long time. Since the end of the 20th century, the environmental problems of polyvinyl chloride materials have been widely recognized, and some developed countries have put forward legal proposals to restrict or completely ban the use of polyvinyl chloride cables. In recent years, there has been a strong trend to control and ban the use of polyvinyl chloride materials. Then the cable insulation material of XLPE was developed. In order to ensure that polyethylene is used as an insulating material for cables, it is cross-linked to improve its temperature resistance le...

AI Technical Summary

Problems solved by technology

[0007] Existing cables have low heat resistance and cannot meet the requirements of high-temperature environments. In the mixing and stirring device for producing cable materials, there are many power sources such as motors, and the cost is relatively high. The mixing and stirring of materials are not sufficient, resulting in the following problems: The quality of the output cable cannot be guaranteed, and the device shakes a lot when it is working, and it is unstable. On the one hand, it affects the mixing efficiency, and on the other hand, it also poses a safety hazard to the device itself and the operator.

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