The partial replacement of silica or calcium carbonate by halloysite nanotubes as fillers in ethylene propylene diene monomer composites

  1. Pooria Pasbakhsh,
  2. Hanafi Ismail*,
  3. Mohd Noor Ahmad Fauzi,
  4. Azhar Abu Bakar

Article first published online: 27 MAY 2009

DOI: 10.1002/app.30441

Issue

Journal of Applied Polymer Science

Journal of Applied Polymer Science

Volume 113, Issue 6, pages 3910–3919, 15 September 2009

Additional Information

How to Cite

Pasbakhsh, P., Ismail, H., Fauzi, M. N. A. and Bakar, A. A. (2009), The partial replacement of silica or calcium carbonate by halloysite nanotubes as fillers in ethylene propylene diene monomer composites. J. Appl. Polym. Sci., 113: 3910–3919. doi: 10.1002/app.30441

Author Information

  1. School of Materials and Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, Penang, Malaysia

*School of Materials and Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, Penang, Malaysia

Publication History

  1. Issue published online: 9 JUN 2009
  2. Article first published online: 27 MAY 2009
  3. Manuscript Accepted: 14 MAR 2009
  4. Manuscript Received: 7 NOV 2008

Funded by

  • USM short term grant. Grant Number: 6035261

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Keywords:

  • halloysite nanotubes;
  • ethylene propylene diene monomer;
  • mechanical properties;
  • electron microscopy;
  • composites

Abstract

The effect of partial replacement of silica or calcium carbonate (CaCO3) by halloysite nanotubes (HNTs) on the curing behavior, tensile properties, dynamic mechanical properties, and morphological characteristics of ethylene propylene diene monomer (EPDM) composites was studied. Five different compositions of EPDM/Silica/HNT and EPDM/CaCO3/HNT compounds (i.e. 100/30/0, 100/25/5, 100/15/15, 100/5/25, and 100/0/30 parts per hundred rubber (phr)) were prepared on a two-roll mill. The results indicated that the replacement of CaCO3 by HNTs increased the tensile strength, elongation at break (Eb), and tensile modulus of composites from 0 to 30 phr of HNTs whereas for silica, the maximum tensile strength and Eb occurred at 5 phr loading of HNTs with an enhanced stress at 300% elongation (M300). The curing results show that, with replacement of silica or CaCO3 by HNTs, the cure time (t90) and cure rate (CRI) were decreased and increased, respectively. Scanning electron microscopy investigation confirmed that co-incorporation of 5 phr of HNTs with silica would improve the dispersion of silica and enhanced the interactions between fillers and EPDM matrix. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009

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