泡沫塑料是以合成树脂为基料,加入发泡剂、催化剂等辅助材料,经加热发泡而成的高效保温、吸声、防震材料。它的种类很多,均冠以所用树脂名称而命名。目前,我国应用较多的有聚苯乙烯泡沫塑料、聚氯乙烯泡沫塑料、聚氨酯泡沫塑料和脲醛泡沫塑料。有些 Foam plastic is based on synthetic resin, adding foaming agents, catalysts and other auxiliary materials, heat foaming made of highly efficient insulation, sound absorption, shockproof materials. It is of many types and is named after the name of the resin used. At present, there are more polystyrene foams, polyvinyl chloride foams, polyurethane foams and urea foams in China. some