活性单体对超支化聚氨酯丙烯酸酯的影响  

The Effect of Active Monomer on Hyperbranched Polyurethane Acrylate

作　　者：林榕[1] 林金娜[1] 曾幸荣[1] 

机构地区：[1]华南理工大学材料科学与工程学院,广州510640

出　　处：《聚氨酯工业》2008年第2期26-28,共3页Polyurethane Industry

摘　　要：研究了活性单体种类及用量对超支化聚氨酯丙烯酸酯(HBUA)光固化膜机械性能的影响,并用光差扫描量热法(Photo-DSC)对超支化聚氨酯丙烯酸酯的光聚合反应速率进行了研究。结果表明,己二醇二丙烯酸酯(HDDA)比三羟甲基丙烷三丙烯酸酯(TMPTA)能更好地调节HBUA固化膜的综合性能,并促进UV固化反应的进行。HDDA的适宜质量分数为20%。The effects of active monomer category and content on mechanical properties of hyperbranched polyurethane acrylate（HBUA） UV cured film were studied. The photo-polymerization rate of HBUA was charactered by photo-calorimetry（Photo-DSC）. The result showed that hexamethylene diacrylate （HDDA） was better to improve the properties of HBUA film and promote UV curable polymerization, compared with trihydroxymethyl propyl triacrylate（ TMIYl＇A）. The. appropriate content of HDDA was 20% by weight.

关 键 词：活性单体 超支化聚氨酯丙烯酸酯 机械性能 光聚合反应速率 

分 类 号：O633.14[理学—高分子化学]