introduction polyurethane (pu) is an important polymer material and is widely used in many fields such as construction, automobile, home appliances, and furniture. its excellent mechanical properties ...

introduction amine foam delay catalysts are widely used in modern industry, especially in the preparation of polyurethane foams. this type of catalyst can effectively control the foam generation rate ...

introduction amine foam delay catalysts play a crucial role in the development of high-performance thermal insulation materials. as global attention to energy efficiency and environmental protection ...

introduction as the global environmental awareness continues to increase, governments and international organizations have issued a series of strict environmental protection regulations to deal with c ...