English  |  正體中文  |  简体中文  |  Items with full text/Total items : 52047/87178 (60%)
Visitors : 8713872      Online Users : 262
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
Scope Tips:
  • please add "double quotation mark" for query phrases to get precise results
  • please goto advance search for comprehansive author search
  • Adv. Search
    HomeLoginUploadHelpAboutAdminister Goto mobile version
    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/106142

    Title: Melt Creep Recovery of Polyamide 6 and Polypropylene Nanocomposites Blended with Layered Silicate
    Authors: G.-G. Lin;Y.-F. Jang Jian;C.-T. Huang
    Keywords: Clay;Creep;Nanocomposites;Polyamides;Rheology
    Date: 2016/03/01
    Issue Date: 2016-04-22 13:21:33 (UTC+8)
    Publisher: Carl Hanser Verlag GmbH & Co. KG
    Abstract: Nanocomposites of polyamide six (PA6) reinforced with organoclay were prepared in this study through melt mixing. The blended montmorillonite clay was organically modified with octadecylamine. The loadings of the clay were 1 wt%, 5 wt%, and 9 wt%. The obtained nanocomposites exhibited exfoliation (1 wt%) and intercalation (other compositions) structures. By contrast, if they were mixed with unmodified clay, the PA6 molecules could not enter the silicate interlayer. For polypropylene (PP), forming nanocomposites with organoclay was difficult but made feasible by incorporating the maleated PP. The results of dynamic rheological tests demonstrated that an end-tethered storage modulus was observed for the PA6/organoclay nanocomposites. However, the PP/organoclay exhibited terminal-zone behavior. In addition, the shear creep recovery was conducted on the molten polymer composites. The results indicated that the molten PA6/organoclay nanocomposite exhibited a higher creep-recovery ratio, a measure of the elastic property, than that of pristine PA6. The time constant in the Voigt-Kelvin constitutive model for the PA6/organoclay melts was lower than that of the pristine PA6 due to the superior elastic moduli, because it is defined as the ratio of viscosity to the modulus. However, the recovery ratios for most of the PP nanocomposites were found to be less than that for the pristine PP, indicating the fair reinforcing effect of the organoclay.
    Relation: International Polymer Processing 31(1), pp.11-17
    DOI: 10.3139/217.3041
    Appears in Collections:[化學工程與材料工程學系暨研究所] 期刊論文

    Files in This Item:

    File Description SizeFormat
    Melt Creep Recovery of Polyamide 6 and Polypropylene Nanocomposites Blended with Layered Silicate.pdf772KbAdobe PDF0View/Open

    All items in 機構典藏 are protected by copyright, with all rights reserved.

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