Use N,N,N’,N”,N”-pentamethyldipropylene triamine to enhance the mechanical properties of polyurethane foam Introduction Polyurethane Foam (PU Foam) is a polymer material widely used in the fields of construction, furniture, automobiles, packaging, etc. Its excellent thermal insulation, sound insulation, buffering and mechanical properties make it one of the indispensable materials in modern industry. However, with the diversification...