脂肪族聚氨酯乳液的合成与研究  

Study on the Synthesis and Properties of Aliphatic Polyurathane Emulsion

作　　者：王念贵[1] 高庆[1] 陈福和[1] 

机构地区：[1]湖北大学化学与材料科学学院,武汉430062

出　　处：《胶体与聚合物》2000年第4期18-19,共2页Chinese Journal of Colloid & Polymer

摘　　要：采用先乳化后扩链工艺合成脂肪族聚氨酯乳液 ,并讨论 NCO% ,COO- %对乳液及膜性能的影响 ,结果表明 NCO%越大 ,聚氨酯乳液膜的硬度越大 ,玻璃化转变温度越高 ;COO- %越大 ,聚氨酯乳液的粘度越大 ,平均粒径越小 ,膜吸水率越高 ,耐水性能越差。Aliphatic polyurathane emulsion was propared by the method of expanding chain after emulsing and influence of NCO%,COO% on the properties of polyurathane emulsion and film was discussed.The results show that the more of COO% was,the smaller the average emusion particle diameter was,the more the emulsion glutinousness was, the more the emulsion film′s absorbility of water was,and the more the NCO% was, the harder the emulsion film was,the higher the emulsion film′s glass transition temperature was.

关 键 词：脂肪族聚氨酯乳液 合成 乳化 扩链 

分 类 号：O633.22[理学—高分子化学] TQ323.806[理学—化学]