紫外光阳离子引发剂/环氧体系固化行为研究  

Curing behavior of UV cationic photoinitiator/epoxy resin system

作　　者：任众[1] 刘宇艳[1] 邹育良[2] 杜星文[1] 

机构地区：[1]哈尔滨工业大学应用化学系,哈尔滨150001 [2]大庆油田有限责任公司勘探开发研究院,黑龙江大庆163712

出　　处：《哈尔滨工业大学学报》2007年第6期960-963,共4页Journal of Harbin Institute of Technology

基　　金：哈尔滨工业大学优秀青年教师培养计划资助项目(HIT.2006.32)

摘　　要：合成两种紫外光阳离子引发剂,S,S-二甲基(3,5-二甲基-4-羟苯基)硫鎓六氟磷酸盐(4HPS)和S,S-二甲基(3,5-二甲基-2-羟苯基)硫鎓六氟磷酸盐(2HPS),并用红外光谱、1H-NMR、元素分析确证合成产物即为目标产物.用红外光谱仪结合高压汞灯的方法,对HPS引发剂/ZH92-21体系的固化行为进行研究,在采用的两种浓度中,引发剂浓度越高,聚合速率越大,这与动力学推论一致.2HPS/ZH92-21体系的固化速率大于4HPS/ZH92-21体系.2-异丙基噻吨酮对HPS引发剂/ZH92-21体系具有光敏作用.Two cationic photoinitiators are successfully synthesized, which are S,S - dialkyl - S - （3,5 - dimethyl -4 - hydroxyphenyl） sulfonium（4HPS） and S, S - dialkyl - S - （3,5 - dimethyl - 2 - hydroxyphenyl） sulfonium（2HPS）. The FT- IR, ^1H- NMR and elemental analysis have been used for the structural characterizations. The cure behavior of photoinitiator/ZH92 - 21 is investigated through FT - IR combined with a high pressure mercury lamp. The result shows that the polymerization rate increases with increase of the photoinitiator＇s concentration. This is consistent with the kinetic equation. The cure rate of 2HPS/ZH92 -21 is faster than 4HPS/ZH92 - 21. 2 - isopropylthioxanthone can be used as photosensitizer to HPS photoinitiator/ZH92 - 21.

关 键 词：紫外光阳离子引发剂 光固化 环氧树脂 

分 类 号：TQ316.32[化学工程—高聚物工业]