PREPARATION AND PROPERTIES OF EXFOLIATED VERMICULITE-POLYAMIDE 6 NANOCOMPOSITE

DOI 39 References

Search this article

Abstract

Ion-exchange treatment of natural vermiculite (VER) with dodecylammonium (DDA) ions and subsequent preparation of a polyamide 6 (PA6) based nanocomposite was conducted to investigate the potential suitability of VER for use in polymer nanocomposites. In order to investigate the ion-exchange behavior, ground VER powder and DDA were treated at 60℃ for 12h, in which time the intercalation reaction was completed. DDA intercalation was rapid and complete for VER even in dilute DDA solution (0.5 mass%) at a low suspension VER concentration of 1 mass%. The VER-PA6 nanocomposite was formed via exfoliation of a DDA modified VER (DDAVER) layer. DDAVER was melt-kneaded with PA6 in a twin-screw extruder at 260℃. The morphology of the nanocomposite was characterized using X-ray diffraction and transmission electron microscopy. Measurements of the mechanical properties and methanol permeability were also carried out. The DDAVER-PA6 nanocomposite exhibits a high degree of VER exfoliation and the rigidity and gas barrier properties also appear to reflect the nanocomposite morphology. Addition of a small amount of DDAVER with 3 mass% silicate was sufficient to improve the rigidity, heat resistance and barrier properties of the nanocomposite.

Journal

  • Clay Science

    Clay Science 14 (4), 147-153, 2010

    The Clay Science Society of Japan

References(39)*help

See more

Related Projects

See more

Keywords

Details 詳細情報について

  • CRID
    1390001204111391872
  • NII Article ID
    110007641850
  • NII Book ID
    AA00607148
  • DOI
    10.11362/jcssjclayscience.14.4_147
  • ISSN
    21863555
    00098574
  • Text Lang
    en
  • Data Source
    • JaLC
    • CiNii Articles
    • KAKEN
  • Abstract License Flag
    Disallowed

Report a problem

Back to top