摘要
采用原位聚合法制备了介孔材料/不饱和聚酯（SBA-15/UP）复合树脂,通过X射线衍射（XRD）、氮气吸附-脱附、热重分析（TGA）等表征了SBA-15 及SBA-15/UP 的相关性能,研究了不同SBA-15 含量对SBA-15/UP热性能及电性能的影响.结果表明：在原位聚合过程中,SBA-15 的有序性降低,其孔径由原来的6.64 nm下降到0.926 nm,表明UP分子链嵌入到SBA-15 孔道内形成了有机-无机互穿网络结构;与纯UP相比,添加1%-3%的SBA-15后,SBA-15/UP复合树脂的热稳定性明显提高,其Td5%较纯UP的Td5%均提高了25 ℃左右.
A mesoporous material/unsaturated polyester（SBA-15/UP） composite resin was prepared throughin-situ polymerization. The properties of SBA-15 and SBA-15/UP were characterized by X-ray diffraction（XRD）, nitrogen adsorption-desorption, thermogravimetric analysis（TGA）, and the effects of SBA-15 contenton the thermal properties and electrical properties of SBA-15/UP were studied. The results show thatthe ordering of SBA-15 decreases during the process of in-situ polymerization, and the diameter ofSBA-15 reduces from 6.64 nm to 0.926 nm, which indicate that the UP molecular chain is embedded inthe pore channel of SBA-15 and forms a organic-inorganic interpenetrating network structure. Comparedwith the pure UP, when the SBA-15 content is 1%-3%, the thermal properties of the SBA-15/UP compositeresin increases obviously, and the Td5% increases by 25 ℃.
出处
《绝缘材料》
CAS
北大核心
2014年第2期41-44,共4页
Insulating Materials
基金
国家自然科学基金项目(51263005
51163003
21264005)
关键词
介孔材料
不饱和聚酯
热性能
电性能
mesoporous material
unsaturated polyester
thermal properties
electrical properties
