화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.14, No.2, 236-242, March, 2008
DOI10.1016/j.jiec.2007.11.001  Export Citation
Effects of polypropylene-g-(maleic anhydride/styrene) compatibilizer on mechanical and rheological properties of polypropylene/clay nanocomposites
C.K. Hong, M.-J. Kim1, S.H. Oh1, Y.-S. Lee2, and C. Nah1, †
  • School of Applied Chemical Engineering, Chonnam National University, Gwangju 500-757, Korea
  • 1Polymer-Nano Science and Technology, Chonbuk National University, Jeonju 561-756, Korea
  • 2Division of Chemical Engineering, Chonbuk National University, Jeonju 561-756, Korea
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To enhance the dispersibility of clay in polypropylene (PP) matrix, PP-g-(maleic anhydride/styrene) (MA/ST) was prepared as a compatibilizer by graft copolymerization of maleic anhydride (MA) and styrene (ST) with PP. The addition of ST was known to be effective in improving the graft degree. PP/clay nanocomposites with the compatibilizer were prepared by melt intercalation. The X-ray diffraction (XRD) peaks of (0 0 1) plane of the organo-modified montmorillonite (O-MMT) were shifted to lower angles by an addition of PP-g-(MA/ST), indicating the intercalation capability of PP-g-(MA/ST) in the silicate layers. Transmission electron microscopy (TEM) photographs showed that the O-MMT in the presence of PP-g-(MA/ST) was intercalated and partly exfoliated during melt mixing. The addition of O-MMT and PP-g-(MA/ST) improved the thermal stability, tensile and theological properties of the nanocomposites. (C) 2008 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
Keywords:polypropylene;compatibilizer;maleic anhydride;styrene
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