聚氨酯硬泡作为一种高分子新材料,其质量轻、强度高并具有极低的热导率,是优质的绝热保温材料。聚氨酯硬泡密度大小以及导热系数高低等可随着原料及配方的不同而改变,其成型施工十分方便,既可预制又可现场喷涂或灌注发泡成型,因此在各行业应用广泛。我国聚氨酯硬泡工业起步较晚,初期其生产原料基本依赖进口,发展较缓慢。直到20世纪90年 Polyurethane foam as a new polymer material, its light weight, high strength and low thermal conductivity, is a good thermal insulation material. Polyurethane rigid foam density and the level of thermal conductivity, etc. can vary with the raw materials and formulations vary, the molding is very convenient, both prefabricated and field spraying or infusion foam molding, so widely used in various industries. China’s polyurethane foam industry started late, the initial production of raw materials basically rely on imports, the development of more slowly. Until the 20th century 90 years