国产欲女高潮正在播放_久久精品九九亚洲精品天堂_亚洲 久久久亚洲色_一本一本久久A久久精品综合_极品粉嫩福利午夜在线播放_国产精品私密保养

Polymers

Silicone polymer is linear high-molecular compound based on Si - O - Si bond chain, with side chains of methyl, phenyl, vinyl, hydroxyl, hydrogen and other organic groups. By different degree of polymerization and appearance, silicone polymers can be divided into: (1) silicone fluid. With low molecular weight, it is a kind of liquid, main products are OH Polymer, Polydimethyl silicone oil, vinyl silicone oil,methylhydrogen silicone oil, Silicone liquids are used to produce liquid silicone rubbers, sealants, emulsions. (2) silicone gum. With high molecular weight, silicone rubber is semi-solid. Methyl vinyl silicone gum and methyl phenyl silicone gum are main products, which is the raw material of high temperature vulcanized silicone rubbers


Back
Business scope
建筑
廚房用品
母嬰用品
新能源
醫(yī)療健康
電力通信
潤(rùn)滑