Silica SiO2 specification: 1-3mm / 2-4mm SiO2 is also called silica. It is widely distributed in nature, such as quartz, quartz sand, etc. White or colorless, light yellow with high iron content. Density 2.2 ~ 2.66. Melting point 1670 ℃ (quartz); 1710 ℃ (cristobalite). The boiling point is 2230 ℃, […]
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Chinese researchers have successfully extracted nano silica from rice husk, which is indispensable for the manufacture of rubber and plastics. According to the inventor of this technology, Professor Wang Zichen of the school of chemistry of Jilin University, because the components of rice husk contain a large amount of silicon, […]
Extinction principle and application of extinction powder related to extinction agent, semi gloss or matte powder coating is sometimes required according to its application. In order to reduce the gloss of the film, the commonly used matting agents include ultra-fine silica, talc powder, aluminum stearate, calcium stearate, low molecular weight […]