反应条件对水性聚氨酯预聚反应的影响  

Effects of reaction conditions on prepolymerization of polyurethan emulsion

作　　者：李士杰[1] 廖水姣[2] 李建宗[3] 

机构地区：[1]武汉军事经济学院,武汉市4300351 [2]华中农业大学,武汉市4300702 [3]湖北大学,武汉市4300623

出　　处：《粘接》2001年第3期11-12,18,共3页Adhesion

摘　　要：以TDI、N2 10、DMPA为基本原料 ,用丙酮法合成了稳定的聚氨酯乳液 (WPU)。探讨了反应温度、溶剂、催化剂及用量对预聚反应的影响。结果表明 :以丙酮为溶剂 ,以二月桂酸二丁基锡为催化剂 (用量 0 .0 3% ) ,反应温度 80℃最为适宜。Stable waterborne polyurethane emulsion was prepared with N210,TDI,and DMPA by acetone process.Effects of reaction temperature,solvent,catalyst and its amount on prepolymerization was studied. Results showed that the most proper reaction temperature is about 80 ℃,when the prepolymerization reaction conducted in acetone solvent in the presence of dibutyltin dilaurate(0.03%) as the catalyst.

关 键 词：预聚反应 预聚体 反应条件 水性聚氨酯 

分 类 号：TQ323.8[化学工程—合成树脂塑料工业]