Introduction of heat resistance related to silicone wire and cable

- Nov 15, 2019-

Silicone wire and cable as a new type of cable, its silicone rubber material has played a big role in its wide application. Let us analyze the heat resistance of silicone rubber wire and cable.


In theory, the heat resistance of silicone rubber materials in air is much better than that of organic rubber, and its use is different at different temperatures. At 150 ° C, its physical and mechanical properties are basically insignificant, the compensation wire can be used almost permanently; and at 200 ° C, silicone rubber wire and cable can be used continuously for more than 10,000 hours; It can only be used in a short time at 380 °C. In summary, we can understand naturally that silicone rubber wire and cable are widely used in high temperature and other occasions.


So what are the factors related to the heat resistance of silicone rubber materials in silicone rubber wire and cable?


In simple terms, the heat resistance of silicone rubber materials is related to the type of raw rubber, the content of vinyl (crosslinking density), the type of heat-resistant additive, the type of filler and the amount thereof, and the pH of the rubber compound. Values and water content are also relevant. Therefore, in the selection of the raw rubber polymerization catalyst, the neutralization of the catalyst remaining after the reaction, the selection of fillers such as silica and its structure control agent also require special attention. At the same time, the heat-resistant grade of silicone rubber material, when the temperature is higher than 250 ° C, the hardness will increase more slowly, and the rate of decline of tensile strength and elongation at break will be correspondingly smaller. .

       

Silicone wire and cable application advantages

Silicone wire and cable is suitable for high temperature range and harsh environment with rated voltage of 0.6/1KV and below. It has excellent resistance to high temperature, flame retardant, radiation, aging, ozone and water, and has good cold resistance. , weather resistance. It is widely used in high temperature industries such as lighting, lifting, transportation, machinery, electrical, steel, medicine, metallurgy, port, mining, physics, warehousing, aviation, power plants, coking plants, petroleum, and chemical industries. As electrical equipment transmission line, control and monitoring line, power connection and control, signal, lighting, etc. of various mobile power devices.

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