What are the general uses of precipitated Silicon Dioxide SiO2
Precipitated Silicon Dioxide SiO2 has a wide range of uses, and its reinforcing properties are second only to carbon black. This feature is particularly advantageous in rubber products. Precipitated silica can also be used as a thickener or thickener.
Silicon Dioxide SiO2 is roughly classified into precipitated silica and fumed silica according to the production method. Precipitated silica is further divided into traditional precipitated silica and special precipitated silica. The former refers to silica produced with sulfuric acid, hydrochloric acid, CO2 and water glass as the basic raw materials, and the latter refers to silica. The silica is produced by special methods such as hypergravity technology, sol-gel method, chemical crystallisation method, secondary crystallization method or reversed micelle microemulsion method.
Precipitated Silicon Dioxide SiO2 is mainly used as reinforcing agent for natural rubber and synthetic rubber, toothpaste friction agent, etc. This is because the reinforcing effect of precipitated silica is better, and it can also improve the elastic strength, wear resistance, and hardness of plastics. High thermal stability, when a certain amount of precipitated silica is added to the plastic material, the hardness and elasticity of the product can be improved.
Precipitated Silicon Dioxide SiO2 can also be used as a sizing agent for paper, used for printing drawings, which can improve the surface quality of paper, especially for newsprint. Adding a small amount of suitable silica can improve the whiteness and opacity of paper. In addition to preventing ink penetration.