background introduction of polyurethane catalyst a-1 polyurethane (pu) is a polymer material produced by the reaction of isocyanate and polyol. due to its excellent mechanical properties, chemical re ...

introduction polyurethane catalyst a-1 is a highly efficient catalyst widely used in the manufacturing process of polyurethane foam. it not only significantly improves production efficiency, but also ...

introduction polyurethane (pu) is a high-performance polymer material. due to its excellent mechanical properties, chemical resistance, wear resistance and adhesiveness, it has been widely used in man ...

introduction polyurethane (pu) is an important polymer material and is widely used in coatings, adhesives, foam plastics, elastomers and other fields. its excellent mechanical properties, chemical res ...