纳米硅粉/MC尼龙6复合材料的制备与性能  

Preparation and properties of nanometer silica fume/MC nylon 6 composites

作　　者：常海波[1] 武浩浩[1] 王世浩[1] 李小红[2] 张治军[2] 

机构地区：[1]河南大学化学化工学院环境与分析科学研究所,河南开封475004 [2]河南大学特种功能材料教育部重点实验室,河南开封475004

出　　处：《化学研究》2015年第5期524-528,共5页Chemical Research

基　　金：国家自然科学基金(21204018);河南省与国家自然基金委联合基金(U1204518);河南省教育厅项目(15A150033)

摘　　要：将纳米硅粉分散于熔融的己内酰胺中,以NaOH为催化剂,2,4-甲苯二异氰酸酯为助催化剂,原位制备了纳米硅粉/MC尼龙6复合材料.用红外光谱、X射线衍射、场发射扫描电镜、热重分析仪和差示扫描量热仪对复合材料的界面结构和性能进行了研究.结果表明,纳米硅粉在尼龙6基体中具有较好的分散性,而且其与基体有比较强的界面作用,纳米硅粉促进了尼龙6的结晶,但是其对尼龙6的晶型结构没有产生明显的影响.MC Nylon 6 nanocomposites were prepared by in‐situ polymerization of caprolactam and nanometer silica fume using sodium hydroxide as catalyst and 2 ,4‐toluenediisocyanate as cocatalyst .The crystal structure and interface structure of the nanocomposites between MC ny‐lon 6 and filler as well as their crystallization and melting behaviors were investigated using FT‐IR ,XRD ,SEM ,TGA and DSC .The results show that nanometer silica fume is well dis‐persed in nylon 6 matrix .A strong interfacial interaction between MC nylon 6 and nanometer silica fume is formed .Moreover ,nanometer silica fume accelerates the crystallization of nylon 6 and increases its crystallinity .But the filler have no remarkable effect on the crystal structure .

关 键 词：纳米硅粉 MC尼龙6 结晶熔融行为 界面结构 

分 类 号：TQ323.4[化学工程—合成树脂塑料工业]