Polymethacrylimide foam (PMI foam) has a wide range of uses and the level of localization in the Chinese market needs to be improved.

polymethacrylimide foam, also known as pmi foam, refers to a type of rigid foam with a copolymer of methacrylic acid (maa) and methacrylonitrile (man) as the base resin, and a main chain containing re…