Preparation and characterization of polymer-clay nanocomposite films  

作　　者：CHEN KeYu WANG ChangAn HUANG Yong LIN Wei 

机构地区：[1]State Key Laboratory of New Ceramics and Fine Processing,Department of Materials Science and Engineering,Tsinghua University,Beijing 100084,China [2]School of Materials Science and Engineering Georgia Institute of Technology,771 Ferst Drive NW Atlanta,GA 30332,USA

出　　处：《Science China Chemistry》2009年第12期2323-2328,共6页中国科学（化学英文版）

基　　金：Supported by the National Natural Science Foundation of China (Grant No. 50572044);the 973 Project (Grant No. 2006CB605207-2)

摘　　要：Polymer/clay nanocomposite films were prepared by means of electrodeposition of aqueous suspension including cathodic electrophoretic acrylic resin (CEAR) and Na+-montmorillonite (NMMT). Studies of XRD,SEM and TEM indicated well-dispersed NMMT platelets in the films prepared. The ideal dispersity achieved was thought to be the result of aqueous compatibility between CEAR molecules and NMMT platelets and the result of the water-involved process as well. The modulus and strength of the polymer/clay nanocomposite coatings tested by tensile testing and nano-indentation were effectively improved compared to those of the virgin CEAR film. In addition,the adhesion strength,flexibility and water-resistance represented by Chinese national standard (GB) kept the best grades.Polymer/clay nanocomposite films were prepared by means of electrodeposition of aqueous suspension including cathodic electrophoretic acrylic resin (CEAR) and Na+-montmorillonite (NMMT). Studies of XRD, SEM and TEM indicated well-dispersed NMMT platelets in the films prepared. The ideal dispersity achieved was thought to be the result of aqueous compatibility between CEAR molecules and NMMT platelets and the result of the water-involved process as well. The modulus and strength of the polymer/clay nanocomposite coatings tested by tensile testing and nano-indentation were effectively improved compared to those of the virgin CEAR film. In addition, the adhesion strength, flexibility and water-resistance represented by Chinese national standard (GB) kept the best grades.

关 键 词：polymer-matrix composites (PMCs) LAYERED structures NANOCOMPOSITES electrophoretic MONTMORILLONITE INTERCALATION 

分 类 号：TB383.1[一般工业技术—材料科学与工程]