Polypyromellitic imide (PMMI) has a wide range of applications and overseas companies dominate the global market

polypyromellitimide (pmmi), also known as general-purpose polyimide, is a special engineering plastic. pmmi appears as a white powder and has the characteristics of good electrical insulation properties, high water absorption rate, high obturator rate, and good heat resistance. it is widely used in aerospace, automobile manufacturing, electromechanical equipment, display devices, electronic and electrical fields, etc.…