Silica gel material characteristics, processing technology and application

Silica gel material has the characteristics of high adsorption performance, good thermal stability, chemical stability, high mechanical strength and so on, and is widely used in product design. And the material was modified into special silica gel to adapt to the functional requirements of different products, such as luminous, negative ions, discoloration and other characteristics.

Introduction to silica gel

Silica gel is a kind of highly active adsorption material, belongs to the amorphous substance, which contains polysiloxane, silicone oil, silica black (silica), coupling agent and filler, etc., the main component is silica. Insoluble in water and any solvent, non-toxic and tasteless, chemically stable, in addition to strong alkali, hydrofluoric acid does not react with any substance. Various types of silica gel form different micropore structures due to their different manufacturing methods. The chemical composition and physical structure of silica gel determines that it has the characteristics of many other similar materials that are difficult to replace: high adsorption performance, good thermal stability, stable chemical properties, and high mechanical strength.

Classification of silica gel

Silicone can be classified according to various characteristics:

According to the composition can be divided into: single component and two component silica gel.
According to the vulcanization temperature can be divided into: high temperature vulcanization and room temperature vulcanization silicone.
According to the shape of the product can be divided into: liquid and solid silica gel.
According to the vulcanization reaction can be divided into: condensation reaction type, platinum addition reaction type and peroxide consolidation type.
According to the main chain structure can be divided into: pure silica gel and modified silica gel.
According to the product characteristics can be divided into: high and low temperature resistance type, anti-static type, oil and solvent resistance, conductive type, foam sponge type, high strength tear resistance type, flame retardant fire protection type, low compression deformation type.