Introduction To The Application Fields of Different Types of Mica
Dec. 29, 2020
Mica belongs to aluminosilicate minerals with a continuous layered silicon-oxygen tetrahedron structure, divided into three subtypes: muscovite, Biotite and lepidolite. Muscovite includes muscovite and the less common sodium mica; biotite includes phlogopite, biotite, iron biotite and manganese biotite; lepidolite is the fine scale of various mica rich in potassium oxide. In industry, especially in the electrical industry, muscovite and phlogopite are commonly used.
Muscovite has high dielectric strength and high resistance, low dielectric loss, arc resistance, corona resistance and other excellent dielectric properties, and it has a hard texture, high mechanical strength, high temperature resistance and rapid temperature changes, and has Good physical and chemical properties such as acid and alkali resistance; good splitting property, can be peeled into thin slices along the cleavage surface, and has good elasticity and flexibility, and has favorable processing properties such as easy punching, cutting, sticking, and rolling, so It has a wide range of applications in industry. The main properties of phlogopite are slightly inferior to muscovite, but it has high heat resistance and is a good heat-resistant insulating material.
Flake mica is generally used in electronic tube feeding chips and punching parts in the radio industry, parts specification chips and capacitor chips used in the aviation industry and capacitor production departments, mica flakes for motor manufacturing, household electrical appliances, telephones, lighting, etc. Various specifications of tablets.
Fragmented mica refers to the general term for fine mica extracted, waste residue after processing and peeling, and leftovers after parts processing. Mainly used for the production of various mica paper and mica boards as insulating materials, widely used in the electrical industry; production of various types of Mica Powder, used for engineering plastics and rubber, coatings, linoleum and other roofing materials, cable wraps, and welding rods , Mica ceramics, pearlescent mica pigments, mica cast products, etc.
Muscovite and Phlogopite have good electrical insulation, non-conductivity, acid resistance, alkali resistance and voltage resistance, so they are widely used to make insulating materials in the electronics and electrical industries.