the application demand for polyimide film (pi film) continues to grow, and the localization rate is expected to increase
polyimide film (pi film) is a high-temperature resistant organic polymer film, which is made of polyimide as the main body through casting, stretching and other processes. polyimide films have many uses and can be widely used in led displays, touch screens, electrical insulation systems, aerospace, electronic substrates and other fields. according to the “2022 polyimide…

