Characteristics of mica powder
Feb 03, 2024| Mica powder belongs to monoclinic crystals, which are in the form of scales and have a silky luster (muscovite has a glass luster). Pure blocks are gray, purple rose color, white, etc., with a diameter to thickness ratio>80, a specific gravity of 2.6-2.7, a hardness of 2-3, high elasticity, bendability, good wear resistance and wear resistance; Heat resistant insulation, insoluble in acidic and alkaline solutions, chemically stable. Test data: Elastic modulus 1505-2134MPa, heat resistance 500-600 ℃, thermal conductivity 0.419-0.670W (m.K) -1, electrical insulation 200kV/mm, anti radioactive 5 x 1014 thermal neutrons/cm2 irradiance.
In addition, the chemical composition, structure, and structure of mica powder are similar to those of kaolin, and it also has certain characteristics of clay minerals, such as good dispersion and suspension in aqueous media and organic solvents, white color, fine particles, and viscosity. Therefore, mica powder possesses multiple characteristics of both mica minerals and clay minerals.