Effect of Reactive Nanoclays on Performances of PMMA/Reactive Nanoclay Nanocomposites  

作　　者：陈世伟 卢旭晨 WANG Tizhuang PAN Feng ZHANG Zhimin 

机构地区：[1]State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences (CAS), Beijing 100190, China [2]University of Chinese Academy of Sciences, Beijing 100049, China [3]United Research Center for Resource and Materials, Wuhai 016000, China

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2016年第6期1193-1200,共8页武汉理工大学学报（材料科学英文版）

基　　金：Funded by the National Youth Natural Science Foundation of China(No.21406247)

摘　　要：PMMA/reactive nanoclay nanocomposites were prepared by emulsion polymerization using two different reactive nanoclays. X-ray diffraction（XRD） and thermogravimetric analysis（TGA） results confirmed that the reactive nanoclays, kaolinite and montmorillonite, were obtained by the silylation reaction and the double bonds were grafted onto the edges and surfaces of the nanoclays. The presence of reactive nanoclays could increase the average molecular weights, the glass transition temperatures（Tg） and improve the thermal properties of nanocomposite. The tensile properties, Young＇s modulus, and the aging properties of the nanocomposite films were also enhanced while the light transmittance decreased. Furthermore, the nanocomposites with the reactive kaolinite presented better performances than that with the reactive montmorillonite. Finally, the action mechanism of the reactive nanoclays to the performances of PMMA/reactive nanoclay nanocomposites was proposed.PMMA/reactive nanoclay nanocomposites were prepared by emulsion polymerization using two different reactive nanoclays. X-ray diffraction（XRD） and thermogravimetric analysis（TGA） results confirmed that the reactive nanoclays, kaolinite and montmorillonite, were obtained by the silylation reaction and the double bonds were grafted onto the edges and surfaces of the nanoclays. The presence of reactive nanoclays could increase the average molecular weights, the glass transition temperatures（Tg） and improve the thermal properties of nanocomposite. The tensile properties, Young＇s modulus, and the aging properties of the nanocomposite films were also enhanced while the light transmittance decreased. Furthermore, the nanocomposites with the reactive kaolinite presented better performances than that with the reactive montmorillonite. Finally, the action mechanism of the reactive nanoclays to the performances of PMMA/reactive nanoclay nanocomposites was proposed.

关 键 词：nanoclay emulsion polymerization nanocomposite thermal property mechanical property 

分 类 号：TB33[一般工业技术—材料科学与工程] TB383.1