N”-pentamethyldipropylene triamine: an effective means to improve the sound absorption performance of polyurethane foam

n,n,n’,n”,n”-penmethyldipropylene triamine: an effective means to improve the sound absorption performance of polyurethane foam introduction polyurethane foam is a polymer material widely used in construction, automobile, furniture and other fields. it is highly favored for its excellent thermal insulation, sound insulation and cushioning properties. however, with the continuous improvement of the market’s requirements for material…