UV光固化有机硅的制备及其光固化条件  

Synthesis of UV Curable Organosilicon and Its Curing Conditions

作　　者：马子淇[1,2] 刘伟区[1] 韩敏健[1,2] 

机构地区：[1]中国科学院广州化学研究所,广东广州510650 [2]中国科学院研究生院,北京100049

出　　处：《精细化工》2012年第11期1041-1045,共5页Fine Chemicals

摘　　要：以聚甲基三乙氧基硅烷(PTS)、γ-甲基丙烯酰氧基丙基三甲氧基硅烷(KH-570)、二甲基二乙氧基硅烷(DDS)为原料,以盐酸为催化剂通过溶胶凝胶法制备了可UV光固化的有机硅材料,利用FTIR和29SiNMR对材料进行了表征,研究了可UV光固化有机硅材料的缩聚程度和光引发剂种类对可UV光固化的有机硅材料固化速率的影响。结果表明,光引发剂中,Irgacure 369的固化速率最快,在相同的光照时间和引发剂质量分数下,使用Irgacure 369作为光引发剂的有机硅双键转化率达到了95.89%,同时通过改变光照时间和引发剂质量分数确定了最佳的光照时间和最佳引发剂质量分数分别为15 s和2%。The ultraviolet（UV）-curable organosilicon material has been synthesized by sol-gel method using polymethyl triethoxy silane （ PTS ）, T-methacryloyl propyl trimethoxyl silane （ KH - 570 ）, and dimethyldiethoxysilane（DDS） as the raw materials and HCl as catalyst. The obtained materials were characterized by means of FTIR, 29SiNMR, and the degree of siloxane condensation of organosilicon and the conversion rate of C=C double bonds after UV curing were studied. The results show that the UV-curing system comprising Irgacure 369 has higher curing rate than that with other photoinitiators. The conversion rate of C=C double bonds of organosilieon has reached 95.89% after UV-curing with Irgacure 369. When the concentration of the photoinitiator is 2% and the illumination time is 15 s, the best result can be obtained.

关 键 词：UV光固化 有机硅材料 光引发剂 转化率 功能材料 

分 类 号：TQ630.7[化学工程—精细化工]