Mica paper is a paper-like non-metallic insulating material which combine by Van Der Waals force and electrostatic force. The process of mica paper production include four major step which are pre-selection, crushing, pulping and grading, paper making and drying. Mica paper keep excellent physical properties and chemical of natural mica, in particular, good insulating properties, so that mica paper has been replaced in many areas of natural mica flake. But in china, the mica paper is short of compet...