What types of low temperature resistant silica gel are there?
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Low-temperature resistant silicone rubber refers to silicone rubber with an operating temperature of -100°C. Its structure is different from conventional silicone rubber. It introduces methylphenyl silicone segments or diphenyl silicone into the molecular chain of methylvinyl silicone rubber. Derived from oxygen chain links. It has small compression permanent deformation and a wide operating temperature range. Below, Hongtu Silicone will introduce low-temperature resistant silicone in detail.
In addition to small compression permanent deformation, wide operating temperature range, oxidation resistance, weather resistance, shock resistance, moisture resistance and good electrical insulation properties, it also has low temperature resistance, ablation resistance and radiation resistance.
1. When the phenyl content (ratio of phenyl and silicon atoms) is 5~10%, it is called low phenyl silicone rubber.
3. When the phenyl content is 40~50%, it is called high phenyl silicone rubber. It has excellent radiation resistance. The ray is 1xI08 roentgen.
Low temperature resistant silicone material is one of the important materials used in the aerospace industry, cutting-edge technology and other sectors of the national economy. It can be used to make various molded and extruded products, used as cold-resistant rubber in the aviation industry, or used as seals for ablation-resistant, heat-aging-resistant, and radiation-resistant parts.