有机硅改性水性聚氨酯乳液的制备及其性能研究  

Study on preparation and properties of waterborne polyurethane emulsion modified by organic silicone

作　　者：康圆[1] 郑水蓉[1] 苏航[1] 凡永利[1] 马玉春[1] 

机构地区：[1]西北工业大学理学院应用化学系,陕西西安710129

出　　处：《中国胶粘剂》2011年第3期4-7,共4页China Adhesives

摘　　要：以甲苯二异氰酸酯(TDI)、聚醚二元醇(N-220)、1,4-丁二醇(BDO)、二羟甲基丙酸(DMPA)和硅烷偶联剂(KH-550)等为主要原料,采用丙酮法合成了有机硅改性WPU(水性聚氨酯)乳液。结果表明:KH-550和DMPA的加料方式对WPU乳液稳定性影响较大;当w(DMPA)=3%～5%时,WPU乳液及其胶膜的综合性能较好。With toluene diisocyanate （TDI）, polyether diols （N-220）, 1,4-butanediol （BDO）, dimethylolpropionic acid（DMPA） and silane coupler（KH-550） as main raw materials,so a WPU（waterborne polyurethane） emulsion modified by organic silicone was synthesized by acetone method. The results showed that the influences of feeding mode between KH-550 and DMPA on stability of WPU emulsion were larger. The WPU emulsion and film had better combination property when mass fraction of DMPA was 3%-5%.

关 键 词：水性聚氨酯 乳液 二羟甲基丙酸 有机硅 改性 

分 类 号：TQ331.499[化学工程—橡胶工业]