MAP-POSS/不饱和环氧树脂混杂光固化膜制备与性能  

Preparation and Properties of MAP-POSS/Unsaturated Epoxy Resin Hybrid Ultraviolet Light Cured Film

作　　者：侯桂香[1,2] 谢建强 李婷婷 高俊刚[2] 常娇 

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：《材料工程》2017年第8期49-54,共6页Journal of Materials Engineering

基　　金：国家自然科学青年基金项目(21301048);河北省自然科学青年基金项目(E2015209264);华北理工大学培育基金项目(SP201515)

摘　　要：由KH-570水解缩合制备甲基丙烯酰氧基丙基笼型倍半硅氧烷(MAP-POSS),并将其与不饱和环氧树脂组成自由基-阳离子混杂光固化体系。用红外光谱(FT-IR)表征固化过程特征吸收峰的变化;测试MAP-POSS含量对固化膜表面水接触角、硅元素分布以及涂膜力学性能、热性能的影响。结果表明:MAP-POSS的加入增加了体系的交联度,提高了涂膜的疏水性、热稳定性和玻璃化温度(Tg)。当MAP-POSS含量为12%(质量分数,下同)时,Tg增加了16.9℃。当MAP-POSS含量为15%时,涂膜对水的接触角由58.0°增大到94.2°。MAP-POSS的加入使涂膜的冲击强度先增加后减小。The methyl acryloyloxy propyl silsesquioxane（MAP-POSS） was prepared by hydrolysis con-densation of KH-570, and composing free radical-cationic hybrid UV curing system with the unsatu-rated epoxy resin. The changes of characteristic absorption peak in the curing process was character-ized by using infrared spectroscopy （FT-IR） , and the influence of MAP-POSS content on the surface water contact angle, silicon elements distribution, mechanical properties and thermal performance of UV-cured film was investigated. The results show that with the addition of MAP-POSS the crosslink-ing degree, hydrophobicity, thermal stability and glass transition temperature（Tg） of the film are im-proved. When the content of MAP-POSS is 12% （mass fraction, the same below） , Tg is increased by 16. 9℃. When the MAP-POSS content is 15 % , the water contact angle of film is increased from 58. 0° to 94. 2°. The impact strength is improved firstly and then decreased with the addition of MAP-POSS.

关 键 词：紫外光固化 自由基-阳离子混杂固化 笼型聚倍半硅氧烷 不饱和环氧树脂 

分 类 号：TQ327.12[化学工程—合成树脂塑料工业]