摘要
以有机硅改性丙烯酸环氧单酯为树脂配制了一系列紫外光-热混杂固化体系.通过FTIR表征了光-热固化过程双键和环氧特征吸收峰的变化.研究了不同的稀释剂对光固化和光-热混杂固化膜的凝胶率、吸水率、表面水接触角等性能的影响,并用能谱仪(EDS)测试了固化膜表面硅元素的含量.结果表明:光固化膜的凝胶率低于86.5%,而光-热混杂固化膜的凝胶率在97.0%左右.与丙烯酸环氧单酯光-热固化体系相比,有机硅改性丙烯酸环氧单酯光-热固化膜的表面水接触角有显著提高,由62.53°提高到99.27°,EDS测试也表明有机硅有富集于固化膜表面的特性.
A series of UV-heat hybrid curable compositions were prepared by using organosilicon modified epoxy monoacrylates （OMEMA） as resins. The change of absorption peaks of double bond and epoxy group were identified by FTIR spectra during UV-heat curing process. The influence of different kinds and content of active diluents on the gel content, water absorption and water contact angle of UV-heat cured films were investigated. Mass content of Si in surface of UV-heat cured films was tested by the energy dispersive spectrometer（EDS）. The gel contents of UV cured films were lower than 86.5%, and the gel contents of UV-heat cured films were about 97%. Compared to the epoxy monoacrylates （EMA） compositions with same active diluents, the water contact angle of UV-heat cured films of OMEMA system was increased from 62.53 to 99.27 . The data of EDS testing proved that the Si content of air side of UV-heat cured films was higher than glass side.
出处
《影像科学与光化学》
CAS
CSCD
北大核心
2013年第2期125-131,共7页
Imaging Science and Photochemistry
基金
深圳职业技术学院重点项目(2212K3070002)
深圳市科技计划项目资助(CXZZ20120617142637531)
