Polyimide foam is a new type of foam material produced by polyimide prepolymer, foaming agent, stabilizer and other additives through polymerization and foaming reaction. Polyimide foam is the most potential heat preservation and sound attenuation material in this century. Compared with all heat preservation and sound attenuation materials on the market at present, polyimide foam has a higher sound attenuation index, lower thermal conductivity index, intrinsic flame retardancy, higher resistance to high and low temperatures, better hydrophobicity, better resilience and toughness, no dust, no slag, acid resistance, alkali resistance, oil resistance, radiation resistance, UV resistance, long service life, and lightweight. It is the heat preservation, sound attenuation and flame retardant material with the best comprehensive performance at present.
The emergence of this material means that we have mastered core technologies in the field of cutting-edge insulation and noise reduction, and will have qualitative breakthroughs in many key technological fields. Polyimide foam will enable us to achieve significant progress in key areas such as aerospace, aviation, national defense, rail transit, passenger cars, special thermal insulation vehicles, new energy, etc.