English  |  正體中文  |  简体中文  |  全文笔数/总笔数 : 56848/90584 (63%)
造访人次 : 12153059      在线人数 : 68
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
搜寻范围 查询小技巧:
  • 您可在西文检索词汇前后加上"双引号",以获取较精准的检索结果
  • 若欲以作者姓名搜寻,建议至进阶搜寻限定作者字段,可获得较完整数据
  • 进阶搜寻

    jsp.display-item.identifier=請使用永久網址來引用或連結此文件: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/19542

    题名: Oxygen Barrier and Blending Properties of Blown Films of Blends of Modified Polyamide and Polyamide-6 Clay Mineral Nanocomposites
    作者: Yeh, Jen-taut;Tsai, Fang-chang;Chang, Chang-jung;陳幹男;Chen, Kan-nan;Huang, Kuo-shien
    贡献者: 淡江大學化學學系
    关键词: Oxygen barrier;Free-volume properties;Nylon-6 clay nanocomposites
    日期: 2009-06-01
    上传时间: 2010-08-10 09:57:42 (UTC+8)
    出版者: Elsevier
    摘要: Investigations of oxygen barrier and blending properties of the modified polyamide (MPA) and nylon-6 clay (NYC) blends (MPANYC) were systematically investigated. After blending NYC in MPA, the oxygen barrier properties of the MPANYC film specimens are significantly better than those of the MPA and NYC film specimens. At 20 wt.% optimum content of NYC, the oxygen barrier improvement of MPANYC film specimen reaches the maximum, which is in the same order of magnitude of barrier improvement as those of PVDC film specimens. A similar relation on the NYC content was found on the plots of free free-volume properties (i.e. Rf, Vf, I3 and Fv) vs. the NYC contents of MPANYC specimens. The minimum Rf, Vf, I3 and Fv values of MPANYC specimens were found as their NYC contents reach about 20 wt.%. The characteristic X-ray reflections of α form PA crystals originally associated with the MPA resin almost disappear after blending varying amounts of NYC in MPA resins. Further morphological investigations showed that demarcated structures of elongated (ca. 700 nm) and overlapped clay mineral layers were found on the microtomed surfaces of MPANYC specimens as their NYC contents reach 20.0 wt.%. However, at NYC contents lower than 20.0 wt.%, the lengths of these “elongated and overlapped” clay mineral layers reduce significantly as the NYC contents continue to reduce. These improved oxygen barrier properties of the MPANYC film specimens were explained in terms of the reduced free-volume properties and demarcated structures of the elongated and overlapped clay mineral layers caused by the presence of the nanometer clay mineral layers.
    關聯: Applied Clay Science 45(1-2), pp.1-7
    DOI: 10.1016/j.clay.2008.04.005
    显示于类别:[化學工程與材料工程學系暨研究所] 期刊論文


    档案 大小格式浏览次数
    0169-1317_45(1-2)p1-7.pdf575KbAdobe PDF305检视/开启



    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library & TKU Library IR teams. Copyright ©   - 回馈