聚氨酯是分子结构中含有氨基甲酸酯基(—NHCOO)的高分子材料的总称,早在1937年就为德国人拜耳等制出。几十年来,相继出现了聚氨酯橡胶、聚氨酯粘合剂及聚氨酯化学灌浆材料(水溶性、非水溶性及弹性聚氨酯)。由于合成聚氨酯的主要原料——多异氰酸酯和多羟基化合物的品种很多,所以使聚氨 Polyurethane is a general term for polymer materials containing carbamate groups (-NHCOO) in the molecular structure, as early as 1937 for the German Bayer. For decades, there have been polyurethane rubber, polyurethane adhesives and polyurethane chemical grouting materials (water-soluble, water-insoluble and flexible polyurethane). As the main raw material for the synthesis of polyurethanes - polyisocyanates and polyols, many varieties, so polyurethane