Silane crosslinked rubber cable sheath material

Abstract

The invention provides a silane crosslinked rubber cable sheath material and belongs to the technical field of chemical engineering. The silane crosslinked rubber cable sheath material is prepared from, by weight, 30-40 parts of ethylene propylene rubber, 10-15 parts of nitrile rubber, 15-20 parts of polyvinyl chloride, 15-20 parts of polyethylene, 3-4 parts of an anti-aging agent, 3-4 parts of a vulcanizing agent, 3-4 parts of vinyl silane, 1-2 parts of an initiator, 1-2 parts of a crosslinking catalyst, 2-3 parts of carbon black, 2-3 parts of a flame retardant, 2-3 parts of a softener, 2-3 parts of an antistatic agent and 2-3 parts of an aluminate coupling agent. The added nitrile rubber has excellent oil resistance and solvent resistance. The added polyvinyl chloride has excellent flame retardance, insulativity and mechanical properties. The environmentally friendly polyethylene and the anti-aging agent are adopted, so that the environmental performance of products is improved. The added cross-linking agent and vulcanizing agent can improve the mechanical properties of the rubber material, and the rubber becomes softer and more elastic and does not stick to rollers. The cable sheath material prepared through reasonable raw material preparation has excellent mechanical properties, environmental protection property, softness, aging resistance, weather resistance, chemical resistance and flame retardance.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and in particular relates to a silane crosslinked rubber cable sheath material Background technique [0002] The wire and cable industry is an important supporting industry for my country's economic construction. It is widely used in various fields of the national economy. Wire and cable are indispensable basic equipment for transmitting electric energy, transmitting information and manufacturing various motors, electrical appliances, instruments, automobiles, machine tools, etc. Wire and cable provide infrastructure for the power industry and communication industry, accounting for 1 / 4 of the output value of my country's electrical industry. It is the second largest industry in China after the automobile industry. The product variety satisfaction rate and domestic market share both exceed 90%. Worldwide, China's wire and cable output has surpassed that of the United States, becoming the ...

AI Technical Summary

Problems solved by technology

Polyvinyl chloride is processed into hard products, its hardness is higher than that of low-density polyethylene, but lower than that of polypropylene, but it will appear whitening at the inflection point, and the stability of polyvinyl chloride to light and heat is poor. When exposed to sunlight for a long time, it will decompose and produce hydrogen chloride, and further autocatalyze and decompose, causing discoloration and rapid decline in physical and mechanical properties. If it encounters high temperature or fire, it will soften, break or even burn. During the combustion process, it will release Hydrogen chloride and other toxic gases, such as dioxin, hydrohalic acid, etc.

Although the traditional ethylene propylene rubber material is soft, its mechanical properties cannot meet the requirements