Silica gel is divided into two categories: solid silica gel and liquid silica gel.
The raw materials are mainly divided into silicone rubber, silicone oil resin, silicone oil, silane silicone rubber:
1. Mainly divided into normal temperature silicone rubber and high temperature resistant silicone rubber, which have good electrical insulation properties, not easy to age, good adsorption performance, good thermal performance stability and stable chemical properties. It is also the most common material in silicone products.
Silicone resin: A mixture of several atomic structures of methyltrichlorosilane, phenyltrichlorosilane and diphenyldichlorosilane. Typically, other hydrocarbon groups are attached to the silicon atom. Silicone has excellent water and temperature resistance.
Silicone oil: by dissolving dimethyldichlorosilane in water, then arranging the ring body, the initiator and the catalyst together, and finally after filtration, the silicone oil is finally obtained under reduced pressure, and mixtures of various degrees of polymerization can be obtained.
Silane: It undergoes a combustion chemical reaction with oxygen. It combines with silicon hydrogen. It is mainly used for gas source and can be used to manufacture high-purity polysilicon, single crystal silicon, microcrystalline silicon, amorphous silicon, silicon nitride, silicon oxide, heterogeneous silicon, various metal silicides. Commonly used optoelectronic technologies, solar energy, batteries, displays. Glass and plexiglass electroplating is widely used in the development of current technologies. Silane has a very strong spontaneous combustion range and a wide combustion range, and is a high-risk gas.
2. Silicone products are mainly divided into extruded silica gel, molded silica gel, liquid silica gel and special silica gel.
Extruded silica gel: It is formed into a shape by mechanical high temperature extrusion, which is generally divided into silica gel strips. The hardness of the silica gel tube is about -10-40 degrees.
Molded silica gel: It is made of solid silica gel raw material by vulcanization and adding vulcanizing agent. It is made by high temperature forming on high temperature forming and forming machines.
It is generally divided into industrial parts, daily necessities, medical supplies, jewelry, etc. The hardness is between 20 degrees and 80 degrees, and the color can be customized. Liquid silicone: The main production process is injection molding injection molding machine. Soft material, mainly used in medical technology, sex products, human organs, etc.