Radiation resistant silicone rubber-HongYe silicon...

When the object is the principle of the ground, increases with altitude, atmospheric density and pressure will decrease gradually, when the height of the 110km, the air pressure is about standard atmospheric pressure in the part per million, if a relatively high pressure will be lower, we will call this high altitude high vacuum environment. In the high vacuum environment space environment with ground environment has the very big difference, the singular is of low pressure, low density. The second is under a high vacuum environment there is much higher than the landmark radiation by eyes irradiation and the formation of high energy ray. Therefore in the high vacuum environment is used in rubber materials and rubber parts should also have to deal with high altitude environment ability, in order to ensure the safety of spacecraft.            Having a low volatility rubber and its preparation method, formula is basically composed of: phenyl silicone rubber: 100, radioprotective agents: 60 ~ 85, 3 ~ 8: heat resistant additives, organic peroxides: from 0.8 to 1.2, fumed silica: from 30 to 55, structure control agents: from 3 to 5, 5 to 9 portions of colorant. Radiation resistant silicone rubber with phenyl silicone rubber as main material, modified and made resistant to radiation and low volatile performance of the rubber materials rubber, strong environmental adaptability, can be used for the production of a variety of low volatile function rubber products, including rubber liner hoop, seals, shock absorption buffer element, spacer sleeve, diaphragm and other types of products, can be widely used in aerospace, nuclear industry, electronic communications, chemical industry, medicine, shipbuilding and other areas in the high energy radiation, Taka Shinzora environment.             100 methyl benzene silicone rubber, radiation resistant agent from 60 to 85, 3 to 8 portions of heat-resistant additives:, fumed silica: from 30 to 55, structure controlling agent: 3 ~ 7, 5 ~ 9 colorant: according to the weight combination mixture in the 40-50 degrees temperature mixing 40-80 minutes, the mixing materials after high temperature 195~205 degrees 1~3 hours modification by heat treatment, and then cooling to room temperature in portion by weight adding organic peroxide 0.8~1.2 after mixing evenly, which has low volatility silicon rubber material, the material to be vulcanized molded to have low volatility of silicone rubber products.