Polyimide film

PI (polyimide) is a new type of high-temperature thermosetting engineering plastics, because it can maintain high physical and mechanical properties in a wide range of temperatures of -270-400 ℃, and at the same time can be used in the air for a long period of time at -240-260 ℃, and has excellent electrical insulation, abrasion resistance, resistance to high-temperature radiation and physical and mechanical properties, so it is widely used in aviation, aerospace, electrical appliances, machinery, chemical, microelectronics, instrumentation, petrochemical, metrology and other high-tech fields. Mechanical properties, more synthetic ways and can be used in a variety of methods of processing and molding, so in aviation, aerospace, electrical appliances, machinery, chemicals, microelectronics, instrumentation, petrochemicals, metrology and other high-tech fields are widely used, and has become one of the indispensable materials for global rockets, astronautics and other scientific and technological fields. In addition, glass fiber is added to PI. Graphite and boron fibers can be enhanced to obtain higher hardness and strength, can replace the metal manufacturing jet engine structural components.PI resin with graphite or polytetrafluoroethylene (PTFE) filled with self-lubricating materials can be used to add wear-resistant filler can be used to manufacture high-temperature-resistant brake pads.