Polyimide refers to a polymer with imide structure in its molecular structure backbone. Polyimide is a very large family, and most of the backbone chains of high-performance PI take aromatic ring and heterocyclic ring as the main structural units.

PI has the highest flame retardant rating（UL-94），Good electrical insulation, mechanical properties, chemical stability, aging resistance, radiation resistance, low dielectric loss，And these properties are over a wide temperature range（-269℃-400℃）There will be no significant change within，Known as "one of the most promising engineering plastics in the 21st century"，He is known as a problem solver，You can say, "Without polyimide, microelectronics wouldn't be what it is today."，Its properties are at the top of the pyramid of polymer materials.

The polyimide material increases the average temperature of the polymer material by more than 100℃, and has become one of the polymer materials with the highest high temperature resistance that can be used in practice at present.

Application fields of polyimide

The excellent properties and excellent processing properties of polyimide enable it to be made into different products and applied in various fields through a variety of ways. Among polymers, polyimide is the only one that has a wide range of applications and shows outstanding performance in each of them.

Polyimide properties: heat and low temperature resistance, excellent mechanical properties, good processing properties, non-toxic, etc.

Polyimide materials have a wide range of applications, including films, fibers, photosensitive materials, foams and composites, which are used in flexible screens, rail transit, aerospace, fireproof materials, photoresist, electronic packaging, fan blades, warships, automobiles and other fields.