What are the main functions of mica paper?

Mica paper is made of crushed mica through the process of pulp making, molding and pressing. It adheres to the excellent performance of natural mica, with uniform thickness, small dielectric strength fluctuation scale, small corona starting voltage, high and stable. Its dielectric voltage characteristics are much more stable than flake mica insulation, good thermal conductivity, low temperature rise during use, and can replace natural flake mica in many fields.

Mica paper production technology is considered one of the four major technologies that have made a significant contribution to today's electrical and electronics industry, along with large-scale integrated circuits, high-temperature plastics, and optical fibers. Mica paper is generally divided into calcined mica paper and non-calcined mica paper according to the production method. Calcined mica paper undergoes thermochemical treatment, and the crystal structure of the chemical composition phase changes, resulting in increased electrical conductivity and poor insulation properties. Therefore, uncalcined mica paper prepared by physical means only has better insulating properties and adheres to the properties of natural mica.

Mica paper is mainly used as insulator for electric motors and appliances, especially suitable for making insulating gaskets for large generators, insulating materials for wires and coils in electric motors, and processing multi-gum glass powder mica tapes and soft mica plates, and because of its good insulating properties, high temperature resistance and long service life, the mica thin and thick laminates made can be used for soldering irons, soldering irons and other household appliances. In addition, it can also be used as high-temperature insulating material for air conditioners, automobiles and armored vehicles.