How are mica powders used in building materials?
Mica powder is mainly used in building materials for sound insulation and shock absorption.
Mica powder is a non-metallic mineral, which contains many kinds of ingredients, among which SiO2 is the main content, and the content is about 49%, and the content of Al2O3 is about 30%. Mica powder has good elasticity and toughness. Insulation, high temperature resistance, acid and alkali resistance, corrosion resistance, adhesion and other characteristics, is a good additive. It is widely used in electrical appliances, welding electrodes, rubber, plastics, paper making, painting, coating, pigment, ceramics, cosmetics, new building materials and other industries. It is widely used. With the continuous development of science and technology, people have opened up new application areas.
Mica can change a series of physical moduli of materials, forming or changing the viscoelasticity of materials. These materials absorb vibration energy efficiently and weaken shock waves and sound waves. In addition, shock waves and acoustic waves form repeated reflections between mica wafers, which also weaken their energy. Sericite powder has also been used to prepare noise deadening and shock absorbing coatings.
