The flexible PI film market has promising development prospects. Local companies still need to accelerate breakthroughs in key technologies.

Flexible PI film is a flexible polyimide film, which is made of pyromellitic dianhydride (PMDA) and diaminodiphenyl ether (ODA) in a strong polar solvent through polycondensation and casting to form a film and then through imide Thin-film insulating materials produced by chemicals. Flexible PI film has the advantages of high insulation, good adhesion, strong radiation…