At present, there are many organic silicon products, with more than 10,000 varieties and brands, and more than 4,000 commonly used, which can be roughly divided into three categories: raw materials, intermediates, products and products.
1. Organic silicon monomer: mainly refers to monomers such as organochlorosilane, which are used to synthesize silicone polymers, such as methylchlorosilane, phenylchlorosilane, vinylchlorosilane and other raw materials.
2. Silicone intermediates: mainly refers to linear or cyclic siloxane oligomers, such as hexamethyldisiloxane (MM), octamethylcyclotetrasiloxane (D4), dimethyl Cyclosiloxane mixture (DMC), etc.
3. Organosilicon products and products: The organosilicon products are prepared from the intermediate through polymerization and adding various inorganic fillers or modification auxiliaries. There are four major categories of silicone rubber (high temperature vulcanized silicone rubber and room temperature vulcanized silicone rubber), silicone oil and secondary processed products, silicone resin and silane coupling agent. The silicone rubber is then subjected to vulcanization molding processes such as compression molding and extrusion to obtain final direct supplies such as conductive keys, sealing rings, and swimming caps.
Monomers and intermediates belong to the professional level, and here is mainly to discuss some downstream and daily life-related things, mainly silicone rubber, silicone gel, silicone resin, silicone oil and its secondary processing products, silicone modification additives And emulsified silicone oil and modified silicone products. We only give a brief introduction here, detailed information can be found in the introduction of each category.