环氧丙烯酸酯/EP自由基-阳离子混杂光固化涂膜的性能  

Properties of free radical-cationic hybrid light curing epoxy acrylate/epoxy resin coating

作　　者：侯桂香[1,2] 谢建强 高俊刚[2] 曹阳 

机构地区：[1]华北理工大学材料科学与工程学院,河北省无机非金属材料重点实验室,河北唐山063009 [2]河北大学化学与环境科学学院,河北保定071002

出　　处：《中国胶粘剂》2015年第8期9-12,17,共5页China Adhesives

基　　金：国家自然科学基金项目(51403050);河北省自然科学基金项目(E2015209264)

摘　　要：利用丙烯酸(AA)和环氧树脂(EP)反应制备环氧丙烯酸酯(EAR)。以二苯基碘六氟磷酸盐(DPI·PF6)为光引发剂,并将EAR与EP进行复合固化,制得自由基-阳离子混杂光固化涂膜。研究结果表明:当m(EAR)∶m(EP)=1∶4时,光照5 min后体系的凝胶率为92.3%,EAR/EP涂膜的表面疏水性、耐碱性、附着力和柔韧性随EP掺量增加而增大,并且其热稳定性提高[与纯EAR固化膜相比,其玻璃化转变温度(Tg)提高了42.2℃、热失重5%时的温度增加了24.6℃]。The epoxy acrylate （EAR） was prepared by reaction between acrylic acid （AA） and epoxy resin（EP）. Then, a radical-cationic hybrid light curing coating was prepared when diphenyl iodine hexafluorophosphate （DPI-PF6） was used as light initiator, and EAR and EP were cured by composite. The research results showed that the gel rate of system was 92.3% after illumination 5 min, the surface hydrophobicity, alkali-resistance, adhesion and flexibility of EAR/EP coating were increased with increasing EP contents, and its thermostability was improved because the glass transition temperature （Tg） and temperature at 5% thermal weight loss of EAR/EP＇ s curing coating were 42.2 ℃ and 24.6 ℃ respectively more than those of pure EAR＇ s curing coating when mass ratio of re（EAR） ： m（EP） was 1 ： 4.

关 键 词：环氧丙烯酸酯 混杂光固化 环氧树脂 涂膜 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业] TQ325.7