Because of organic silicon unique structure, with the performance of the inorganic materials and organic materials, with low surface tension, small viscosity-temperature coefficient, high compressibility and high gas permeability basic properties, and has high and low temperature resistance, electrical insulation, resistance to oxidation stability, weather resistance, flame retardant, hydrophobic, corrosion resistance, non-toxic, tasteless, and physiological inertia and other excellent properties, Widely used in aerospace, electronic and electrical, construction, transportation, chemical, textile, food, light industry, medical and other industries, silicone is mainly used in sealing, bonding, lubrication, coating, surface activity, demolding, defoaming, foam suppression, waterproof, moisture-proof, inert filling and so on. With the continuous growth of the quantity and varieties of organic silicon, the application field is constantly broadened, forming a unique and important product system in the field of chemical new materials, many varieties of which are irreplaceable and essential to other chemicals.