成核剂对聚氨酯泡沫成核性能的影响  

Effects of Nucleation Agent on Nucleation Performance of Polyurethane Foam

作　　者：王晋[1] 纪双英[1] 郝春鹏[2] 张元晋[1] 邢军[1] 

机构地区：[1]北京航空材料研究院先进复合材料国防科技重点实验室,北京100095 [2]保定惠阳航空螺旋桨制造厂,河北保定072152

出　　处：《化学推进剂与高分子材料》2009年第5期41-43,共3页Chemical Propellants & Polymeric Materials

摘　　要：主要研究了聚氨酯发泡过程中成核剂的添加量、颗粒大小及颗粒的表面状态对气泡成核过程的影响。结果表明:成核剂的加入可有效地促进气泡成核,降低泡孔尺寸;大尺寸颗粒的成核效果要好于小尺寸颗粒;成核剂的颗粒状态对气泡成核的影响不明显。Effects of addition quantity, particle size and surface state of nucleation agent on the bubble nucleation course during foaming of polyurethane were mainly studied. The results show that adding nucleation agent can effectively improve bubble nucleation and reduce cell size; nucleating effect of larger particles is better than that of the small ones; but the particle state of nucleation agent has little influence on bubble nucleation.

关 键 词：聚氨酯泡沫 成核剂 成核 

分 类 号：TQ328.3[化学工程—合成树脂塑料工业]