摘要
通过4-溴甲基二苯甲酮与二甲基正十八胺反应合成长链型季铵盐光引发剂苯甲酰苄基二甲氨基十八烷基溴化铵,插层修饰蒙脱土;通过层间引发聚合的方法光固化制备环氧丙烯酸酯/蒙脱土纳米复合材料。XRD和TEM分析结果表明,蒙脱土在光固化复合材料中已得到插层和部分剥离;T0GA及力学性能测试结果表明,环氧丙烯酸酯/蒙脱土光固化纳米材料的热稳定性、拉伸强度、弹性模量及断裂伸长率得到了显著提高。
The EA/MMT uv-cured nanocomposites were prepared using modified clays and epoxy resin via intragallery UV-curing polymerization and the organic modified clays were used as the only photoinitiator. The organic modified clays were modified by novel long-chain type quarternary ammonium salt photoinitiator benzoylbenzyl-N,N- dimethyl-N-octadecylammonium bromide which was synthesized by the reaction of 4-bromomethyl benzophenone with octadecyl dimethyl amine. The morphology of the UV-cured EA/MMT nanocomposites prepared from this organicallymodified MMT has been studied using XRD and TEM, and the results have shown an intercalated structure with partially exfoliation for all the samples. Experimental results from TGA and mechanical property testing have also indicated that the thermal and mechanical properties of UV-cured nanocomposites was significantly enhanced.
出处
《精细化工中间体》
CAS
2008年第6期48-51,65,共5页
Fine Chemical Intermediates
基金
湖南省科技计划项目(S2007F123)。
