What are the main functions of mica paper?

Mica paper is made of destroyed mica by the process of pulp making, molding and restraint. It adheres to the excellent function of natural mica, with uniform thickness, small scale of dielectric strength indecision, small corona start voltage, high and stable. Its dielectric voltage characteristics are much more stable than sheet mica insulation, good thermal conductivity, and low temperature rise in the process of application, which can replace natural sheet mica in many fields.

Mica paper manufacturing technology, along with large-scale integrated circuits, high-temperature plastics, and optical fibers, is considered one of the four major technologies that have made significant contributions to today's electrical and electronics industry. Mica paper is generally divided into calcined mica paper and non-calcined mica paper according to the production method. After the thermochemical treatment of calcined mica paper, the crystal structure of the chemical composition phase is changed, resulting in increased electrical conductivity and poor insulation function. Therefore, the insulation function of uncalcined mica paper prepared by physical methods only is better, and the function of natural mica is maintained.

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