Get access

Thermal stability, aging properties, and flame resistance of NR-based nanocomposite

Authors

  • Samaneh Khanlari,

    1. Department of Chemical Engineering, Polymer Engineering Group, Faculty of Engineering, Tarbiat Modares University, Tehran, Islamic Republic of Iran
    Search for more papers by this author
  • Mehrdad Kokabi

    Corresponding author
    1. Department of Chemical Engineering, Polymer Engineering Group, Faculty of Engineering, Tarbiat Modares University, Tehran, Islamic Republic of Iran
    • Department of Chemical Engineering, Polymer Engineering Group, Faculty of Engineering, Tarbiat Modares University, Tehran, Islamic Republic of Iran
    Search for more papers by this author

Abstract

Polymer/clay nanocomposites have some unique properties due to combination of flame resistance and improved mechanical and thermal stability properties which are important to enhance the material quality and performance. The objective of this work was to investigate the effect of organically modified montmorillonite (org-MMT) on the thermal and flame retardant as well as hardness and mechanical properties of the nanocomposites based on the natural rubber (NR). It was shown that by the addition of 3 wt % of org-MMT to NR, its aging hardness rise was decreased more than 55% and the ignition time was delayed about 150%. The reduction in heat release rate peak value was equal to 54% compared to the pristine NR. Addition of org-MMT improved the thermal stability of the NR. Furthermore, nanocomposites which were calendared before curing showed much more thermal stability and fire resistance than those which contained similar amount of organoclay. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2011

Ancillary