聚丙烯腈/蒙脱土纳米复合材料的制备与表征  

Preparation and characterization of polyacrylonitrile/montmorillonite nanocomposite

作　　者：冯辉霞[1,2] 杨瑞成[2] 傅公维[2] 王毅[1,2] 雒和明[1] 

机构地区：[1]兰州理工大学石油化工学院,兰州730050 [2]兰州理工大学材料科学与工程学院,兰州730050

出　　处：《哈尔滨工业大学学报》2009年第9期246-248,共3页Journal of Harbin Institute of Technology

基　　金：甘肃省自然科学基金资助项目(ZS021-A25-028-C3ZS-042-B25-0080809DJZA011);国家教育部"春晖计划"基金资助项目(Z2005-1-62016);兰州理工大学博士基金资助项目

摘　　要：采用不同改性蒙脱土与丙烯腈单体原位聚合制得纳米复合材料,通过红外、XRD表征蒙脱土插层前后结构的变化,并用热重、差热分析产物的稳定性.X射线粉末衍射结果显示,改性后蒙脱土层间距被不同程度扩大,尤其是PAN/Na-MMT的(001)衍射峰已完全弥散,说明蒙脱土被剥离.差热、热重分析结果显示聚丙烯腈/蒙脱土纳米复合材料的热稳定性比纯聚丙烯腈有较大提高.Polyacrylonitrile （PAN）/montmorillonite （MMT） nanocomposite has been successfully prepared from acrylonitrile monomer and montmorillonite of various modifiers by means of in-situ polymerization. Infrared （IR） spectra and XRD were employed to characterize the obtained PAN/MMT composite. The result shows that the inserting of acrylonitrile monomer can remarkably enlarge the interlayer space of montmorillonite, and the PAN/MMT nanocomposite materials completely lose the X-ray diffraction and thermal properties of MMT in the interlayer of MMT, which indicates that MMT layers have been peeled off and dispersed into PAN. The thermal stability of PAN/MMT is better than that of pure PAN.

关 键 词：蒙脱土 聚丙烯腈 纳米复合材料 原位聚合 改性剂 

分 类 号：O62[理学—有机化学] O631.4[理学—化学]