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Journal of Nanomaterials
Volume 2012 (2012), Article ID 215978, 6 pages
Research Article

Characterization of Mechanical Properties: Low-Density Polyethylene Nanocomposite Using Nanoalumina Particle as Filler

1Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia
2Department of Chemical and Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia, Selangor, 43400 Serdang, Malaysia
3Institute of Tropical Forestry and Forest Product, Universiti Putra Malaysia, Selangor, 43400 Serdang, Malaysia
4Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, Selangor, 43400 Serdang, Malaysia
5Radiation Processing Technology Division, Malaysian Nuclear Agency, Bangi, 43000 Kajang, Malaysia

Received 2 July 2012; Revised 21 September 2012; Accepted 6 October 2012

Academic Editor: Fathallah Karimzadeh

Copyright © 2012 Ching Yern Chee et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Nanocomposites based on low-density polyethylene (LDPE), containing 0.5, 1, 2, 3, and 5 wt% of nanoalumina, were prepared by melt-mixing at 125°C and hot melt-pressing to thin polymer film at 125°C. To enhance the interfacial interaction between alumina and LDPE, alumina surface was treated with silane which acts as coupling agent. The effects of alumina additions to the structure and morphology of LDPE matrix were characterized using Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM), respectively. The mechanical behaviour of nanoalumina-reinforced LDPE composite was studied using tensile tests, flexural tests, and impact tests. The interfacial adhesion between nano alumina particle and LDPE matrix was investigated. The result showed that the reinforcement performance of nano alumina to LDPE matrix was attributed to the interfacial adhesion between nanoparticle and polymer matrix. The addition of 1 wt% nano alumina has successfully enhanced the mechanical properties of LDPE material.