Preparation and Properties of Epoxy/Montmorillonite NanocompositeHU Bing,ZENG Li-ming,TIAN Xiao-wei,HU Chuan-qun(School of Material Science and Engineering,Wuhan University of Technology,Wuhan 430070,China)Epoxy resin/montmorillonite clay nanocomposite was prepared by intercalating with epoxy and organic montmorillonite clay,which was modified with the long chain quaternary ammonium salts with two positive ions in a molecule as the organic processing reagent.The organic montmorillonite clay was charactered by XRD and FTIR methods,and the mechanics properties of the nanocomposite were tested also. The results showed that the modification made interlaminar space of the montmorillonite greater,the addition of organic montmorillonite clay improved the mechanics properties of epoxy matrix,and when its content was 1%,the mechanics properties of epoxy resin,such as flexural strength and impact strength,would obtain the biggest enhancement.epoxy resin;montmorillonite clay;intercalation;nanocomposite