A SILICA COATING METHOD OF POWDER PARTICLES BY WET TYPE MECHANOCHEMICAL PROCESS

摘要

Based on a circulating milling device consisting of a wet milling device and a slurry cooling bath, by using silica powder and water as raw materials, evenly and precisely the surface of most powders can be exploited by utilizing the solubility difference of silica caused by the temperature difference between the two devices. The silica coating layer can be formed. In addition to the temperature difference between the two devices, it is possible to increase the solubility of silica by adjusting the slurry pH with a strong acid or strong base or by using a finely sized silica powder, and increase the silica coating rate. The thickness can be easily increased.;Milling, Cooling, Temperature, Solubility, Mechanochemical, Silica Coating, Slurry pH, Powder Size