Silicone rubber for electric wire sheath and preparation method thereof

Abstract

The invention discloses silicone rubber for an electric wire sheath and relates to the field of electric wires and cables. The silicone rubber for the electric wire sheath comprises, by mass, 7-9 parts of sulfur, 2-6 parts of heat conduction filler, 7-10 parts of an organosilicon compound, 20-30 parts of methyl vinyl silicone rubber, 15-20 parts of white carbon black, 2-5 parts of diethoxydimethylsilane, 15-20 parts of calcium stearate, 2-3 parts of quartz powder, 1-2 parts of calcium carbonate, 4-6 parts of an iron 2-ethylhexanoate organic solution, 6-10 parts of vinyl MQ silicon resin, 6-9 parts of antimonous oxide, 5-6 parts of decabromodiphenylethane and 4-12 parts of calcium hydroxide. According to the silicone rubber, the preparation steps are reasonable and convenient to operate, the prepared silicone rubber for the electric wire sheath has the advantages of being good in resilience force, high in wear resistance and long in service life, and environment polluting matter or gas cannot be generated in the preparation process.

Description

technical field [0001] The invention relates to the field of wires and cables, in particular to a silicone rubber for wire sheaths and a preparation method thereof. Background technique [0002] PVC wire and cable plastic is a kind of plastic made of polyvinyl chloride resin as the main material, together with fillers, plasticizers, modified Liu and other polymer materials. It has excellent physical properties and can fully meet the needs of countries all over the world. Requirements for related wire and cable products. At the same time, its price is low, and it is widely used in the wire and cable industry. The only shortcoming is that its content of substances harmful to human body is too high, which has a certain impact on recycling. The existing polyvinyl chloride wire and cable plastics generally choose lead stearate as a stabilizer, which only meets the requirements of relevant standards in terms of performance, but there are problems such as environmental pollution....

AI Technical Summary

Problems solved by technology

The only shortcoming is that its content of harmful substances is too high, which will have a certain impact on recycling

[0004] Although the wire and cable sheath made of this material has excellent anti-termite, anti-mouse performance, and has good physical and mechanical properties, environmental protection, non-toxicity, and durability, the aromatic amine antioxidants in it are selected from diphenylamine, p-phenylene Amine and dihydroquinoline, 4,4'-thiobis(6-tert-butyl-3-methylphenol) are all toxic substances, under the influence of long-term light and temperature , volatile toxic gas, pollute the environment, affect people's health