摘要
以异氰酸酯、聚己内酯二元醇、环氧树脂E-51、二羟甲基丙酸和蓖麻油为主要原料制备了环氧树脂和蓖麻油双重改性的水性聚氨酯分散体。结果表明，当NCO与OH摩尔比为1.3、DMPA添加质量分数为4％～6％、三乙胺中和度为80％时，所得涂膜铅笔硬度H，耐水性72 h无异常，满足了水性木器面漆的性能要求。
The double modified waterborne polyurethane dispersion was prepared by isocyanate, polycaprolac-tone diols, epoxy resin E-51 and castor oil. The results showed that the waterborne polyurethane film pencil hard-ness was H and water resistance was 72 h without exception when NCO/OH molar ratio, the content of DMPA and the neutralization degree of triethylamine was 1？3, 4% ~6% and 80%, respectively.
出处
《聚氨酯工业》
2014年第2期43-45,共3页
Polyurethane Industry
关键词
水性聚氨酯分散体
环氧树脂
蓖麻油
waterborne polyurethane dispersion
epoxy resin
castor oil
