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Journal of Nanomaterials
Volume 2012, Article ID 340962, 6 pages
http://dx.doi.org/10.1155/2012/340962
Research Article

Thermal Stability and Rheological Behaviors of High-Density Polyethylene/Fullerene Nanocomposites

1Laboratory of Polymer Materials and Engineering, Ningbo Institute of Technology, Zhejiang University, Ningbo 315100, China
2MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Zhejiang University, Hangzhou 310027, China
3Department of Materials, College of Engineering, Zhejiang Agriculture & Forest University, Hangzhou 300311, China

Received 3 June 2011; Accepted 20 October 2011

Academic Editor: Steve Acquah

Copyright © 2012 Liping Zhao 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.

Abstract

High-density polyethylene/fullerene (HDPE/C60) nanocomposites with the C60 loading that varied from 0.5 to 5.0% by weight were prepared via melt compounding. Thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) results showed that the presence of C60 could remarkably enhance the thermal properties of HDPE. A very low C60 loading (0.5 wt%) increased the onset degradation temperature from 3 8 9 C to 4 5 9 C and decreased the heat release from 3176 J/g to 1490 J/g. The larger the loading level of C60, the better the thermal stability of HDPE/C60 nanocomposites. Rheological investigation results showed that the free radical trapping effect of C60 was responsible for the improved thermal stability of HDPE.