Gas permeation and mechanical properties of polypropylene nanocomposites with thermally-stable imidazolium modified clay

被引：0
|
作者：
Mittal, V. [1 ]
机构：
[1] Department of Chemistry and Applied Biosciences, Institute of Chemical and Bioengineering, ETH Zurich, 8093 Zurich, Switzerland
来源：
European Polymer Journal | 2007年 / 43卷 / 09期
关键词：
Dialkyl imidazolium salt with better thermal stability than the commonly used dimethyldioctadecyl ammonium salt was synthesized and ion exchanged on the montmorillonite surface. Polypropylene nanocomposites with different volume fractions of the obtained organo-montmorillonite (OMMT) were prepared and the effect of the modified clay on the gas barrier and mechanical properties was studied. Wide angle X-ray diffraction (WAXRD) and transmission electron microscopy (TEM) were used to investigate the microstructure obtained. Thermal behavior of the composites analyzed by thermogravimetric analysis was observed to enhance significantly with the filler volume fraction. The gas permeation through the nanocomposite films markedly decreased with augmenting the filler volume fraction. The decrease in the gas permeation was even more significant than through the composites with ammonium treated montmorillonite. Better thermal behavior of the organic modification owing to the delayed onset of degradation hindered the interface degradation along with detrimental side reactions with polymer itself. Transmission electron microscopic studies indicated the presence of mixed morphology i.e; single layers and the tactoids of varying thicknesses in the composites. The crystallization behavior of polypropylene remained unaffected with OMMT addition. A linear increase in the tensile modulus was observed with filler volume fraction owing to partial exfoliation of the clay. © 2007 Elsevier Ltd. All rights reserved;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Journal article (JA)
引用
收藏
页码：3727 / 3736
相关论文
共 50 条
  • [31] Influence of crystallization on intercalation, morphology, and mechanical properties of polypropylene/clay nanocomposites
    Maiti, P
    Nam, PH
    Okamoto, M
    Hasegawa, N
    Usuki, A
    MACROMOLECULES, 2002, 35 (06) : 2042 - 2049
  • [32] Thermal, mechanical and morphological properties of polypropylene/clay/wood flour nanocomposites
    Lee, S. Y.
    Kang, I. A.
    Doh, G. H.
    Kim, W. J.
    Kim, J. S.
    Yoon, H. G.
    Wu, Q.
    EXPRESS POLYMER LETTERS, 2008, 2 (02): : 78 - 87
  • [33] Microstructure and Properties of Polypropylene/Clay Nanocomposites
    Rezaiean, N.
    Ebadi-Dehaghani, H.
    Khonakdar, H. A.
    Jafary, P.
    Jafari, S. M. A.
    Ghorbani, R.
    JOURNAL OF MACROMOLECULAR SCIENCE PART B-PHYSICS, 2016, 55 (10): : 1022 - 1038
  • [34] Mechanical and tribological behavior of clay–polypropylene nanocomposites
    K. Kanny
    P. Jawahar
    V. K. Moodley
    Journal of Materials Science, 2008, 43 : 7230 - 7238
  • [35] Mechanical Properties of Polypropylene/Clay Nanocomposites: Effect of Clay Content, Polymer/Clay Compatibility, and Processing Conditions
    Tarapow, J. A.
    Bernal, C. R.
    Alvarez, V. A.
    JOURNAL OF APPLIED POLYMER SCIENCE, 2009, 111 (02) : 768 - 778
  • [36] Poly(propylene)-layered silicate nanocomposites: Gas permeation properties and clay exfoliation
    Osman, Maged A.
    Mittal, Vikas
    Suter, Ulrich W.
    MACROMOLECULAR CHEMISTRY AND PHYSICS, 2007, 208 (01) : 68 - 75
  • [37] Mechanical and Thermal Properties of PLLA/PCL Modified Clay Nanocomposites
    Wisam H. Hoidy
    Emad A. Jaffar Al-Mulla
    Khalid W. Al-Janabi
    Journal of Polymers and the Environment, 2010, 18 : 608 - 616
  • [38] Mechanical and Thermal Properties of PLLA/PCL Modified Clay Nanocomposites
    Hoidy, Wisam H.
    Al-Mulla, Emad A. Jaffar
    Al-Janabi, Khalid W.
    JOURNAL OF POLYMERS AND THE ENVIRONMENT, 2010, 18 (04) : 608 - 616
  • [39] SBR/clay nanocomposites with enhanced mechanical and gas barrier properties
    Meneghetti, P.
    Shaikh, S.
    Qutubuddin, S.
    Nazarenko, S.
    Gummi, Fasern, Kunststoffe, 2010, 63 (07): : 405 - 416
  • [40] Polypropylene/clay nanocomposites: Effect of compatibilizers on the morphology, mechanical properties and crystallization behaviors
    Zaman, Haydar U.
    Hun, Park Deuk
    Khan, Ruhul A.
    Yoon, Keun-Byoung
    JOURNAL OF THERMOPLASTIC COMPOSITE MATERIALS, 2014, 27 (03) : 338 - 349
12345