Surface Modification of Mica Powder

The surface modification of Mica Powder can be divided into two processes: organic surface modification and inorganic surface coating modification. The former is mainly aimed at mica powder which is used as a polymer filler for polyolefin, polyamides and polyester. The purpose is to improve the compatibility of mica powder and polymer base material and improve its application performance. 

The commonly used surface modifiers are silane coupling agent, organosilicon oil and so on. After the surface treatment of China mica powder, can improve the mechanical strength and reduce shrinkage rate of molding. There are two kinds of organic surface modification process: dry ground and Wet Ground Mica Powder.