摘要： 采用异佛尔酮二异氰酸酯(IPDI)、聚醚硅氧烷二元醇(WACKER IM22、IM15)/聚酯二元醇(7112)混合软段、二羟甲基丙酸(DMPA)/聚乙二醇(PEG600)混合亲水基(扩链剂)、季戊四醇三丙烯酸酯(PETA)等原料合成多官能度的综合改性UV固化水性聚氨酯丙烯酸酯(WPUA);实验结果表明:采用阴/非离子混合型亲水基能提高WPUA产品稳定性,改性产品固化后膜的耐水性、耐碱性、耐溶剂性能明显提高,综合性能优良。
关键词:
紫外光固化,
水性聚氨酯丙烯酸酯,
季戊四醇三丙烯酸酯,
有机硅
Abstract: A multifunctional modified Uv-curable WPUA with mixed hydrophilic groups and was prepared from IPDI, polysiloxane ( WACKER IM22 or IM 15), /polyester diol(7112), PETA and DMPA/polyethylene glycol (PEG600)hybrid hydrophilic chain extender. The results show that the use of cationic/nonionic hybrid chain extender could improve the product stability as well as water resistance, solvent resistance, alkali resistance effectively.
Key words:
UV-curable,
waterborne polyurethane-acrylate,
pentaerythritol triacrylate,
polysiloxane
殷海龙, 卿 宁. 改性UV固化水性聚氨酯丙烯酸酯合成研究[J]. 涂料工业, 2012, 42(11): 46-49.
Yin Hailong, Qing Ning. Research on Modified UV-Curable Waterborne Polyurethane Acrylate[J]. Paint & Coatings Industry, 2012, 42(11): 46-49.