Sonication effect on the mechanical properties of MWCNTs reinforced natural rubber

Tarawneh, Mou’ad A. and Ahmad, Sahrim Hj. and EhNoum, SeYong and Lau, Kin-tak (2012) Sonication effect on the mechanical properties of MWCNTs reinforced natural rubber. Journal of Composite Materials. ISSN 0021-9983 (In Press)

Abstract

This study investigated the sonication effect on the mechanical properties of thermoplastic natural rubber (TPNR) nanocomposites reinforced by multi-walled carbon nanotubes (MWCNTs). The TPNR nanocomposites were prepared using the melt blending method from polypropylene, natural rubber and liquid natural rubber as a compatibilizer, respectively, with 1% of MWCNTs. The results showed that a good dispersion on nanotubes was achieved by sonication. An optimal sonication time of 1 h was found to produce nanocomposites with maximum tensile and impact strength. The Young’s modulus, tensile strength, elongation at break and impact strength increased by almost 11%, 21%, 43% and 50%, respectively as compared with a pristine TPNR sample. The effect of sonication was also confirmed by dynamic mechanical analysis, it showed that the storage modulus E0, loss modulus E00 and glass transition temperature (Tg) also increased for all MWCNTs reinforced samples. Scanning electron micrographs confirm the effect of good dispersion of MWCNTs and their interfacial bonding in TPNR after sonication.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Published online 3 June 2012. Permanent restricted access to ArticleFirst version.
Depositing User: epEditor USQ
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Mechanical and Mechatronic Engineering
Date Deposited: 13 Sep 2012 04:58
Last Modified: 03 Jul 2013 01:15
Uncontrolled Keywords: carbon nanotubes; thermoplastic natural rubber; mechanical properties
Fields of Research (FOR2008): 10 Technology > 1007 Nanotechnology > 100706 Nanofabrication, Growth and Self Assembly
03 Chemical Sciences > 0305 Organic Chemistry > 030502 Natural Products Chemistry
09 Engineering > 0913 Mechanical Engineering > 091307 Numerical Modelling and Mechanical Characterisation
Socio-Economic Objective (SEO2008): E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
Identification Number or DOI: doi: 10.1177/0021998312443394
URI: http://eprints.usq.edu.au/id/eprint/21568

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