Silica gel is polysiloxane rubber. Polysiloxane was formerly known as silicone. The main chain structure is Si-O-Si structure. Silicon atoms are connected through oxygen atoms and at least one organic group is connected. group. Dr. Eugene RoChow made a major breakthrough in technology research and development in 1940. It was the first elemental polymer used in the industrial field and has been widely used and developed due to its green and environmentally friendly properties.
Polysiloxane main chain structure
Beginning in 1945, thermal vulcanized dimethylsiloxane was effectively promoted, which was mainly added with polydimethylsiloxane raw rubber. Reinforcing agents and vulcanizing agents are vulcanized into high-performance elastic silica gel after reaching the corresponding pressure and temperature. Later, room temperature vulcanizing silica gel and addition-type liquid silica gel through platinum-based catalyzed oxygen-silicon reaction were developed. Polysiloxane is between inorganic and organic polymers, so it has the excellent properties of both. Due to its special molecular structure, it has good insulation, high and low temperature resistance, fire retardant, antistatic, Tear resistance and physiological inertness. It was successfully developed in my country after 1960 and has been widely used in electrical, food, medicine and health, automobiles, electronics and other fields. It can manufacture cables, sealing rings, infant products, toys, medical organs, protective fixtures and other products.