蓖麻油添加量对脂肪族水性聚氨酯-丙烯酸酯复合乳液性能的影响  

Effects of Castor Oil on Properties of Aliphatic Waterborne Polyurethane-Acrylate Hybrid Emulsion

作　　者：罗义[1] 沈慧芳[1] 陈焕钦[1] 

机构地区：[1]华南理工大学化工研究所,广州510640

出　　处：《涂料工业》2008年第5期40-42,共3页Paint & Coatings Industry

摘　　要：以异佛尔酮二异氰酸酯（IPDI）、聚醚二元醇（N220）、蓖麻油（C.O.）和甲基丙烯酸甲酯（MMA）为主要原料，合成了蓖麻油改性聚氨酯-丙烯酸酯（CPUA）复合乳液，研究了蓖麻油添加量对乳液及涂膜性能的影响。实验结果表明，蓖麻油与N220的—OH基团物质的量比（X）在1∶5-1∶3之间，乳液黏度、涂膜柔韧性、吸水率、力学性能等均较好。Castor oil modified polyurethane -acrylate（CPUA） hybrid emulsion was synthesized with isophorone diisocyanate（IPDI） , polyether diol （N220） , castor oil （ C. O. ） and methyl methacrylate （MMA） used as main raw materials. The effects of castor oil content on the properties of CPUA and its coatings film were investigated. It was found that properties of emulsion and film, such as viscosity, film flexibility, moisture absorption and mechanical properties shows good when X is between 1.5 and 1.3 （X is the mole ratio of OH group in castor oil and polyether diol）.

关 键 词：蓖麻油(C.O.) 聚氨酯-丙烯酸酯 脂肪族 

分 类 号：TQ630.4[化学工程—精细化工]