Rheological and Electrical Properties of CB/HDPE Composites

Abstract:

The rheological and electrical properties of composites formed by filling high density polyethylene (HDPE) with carbon black (CB) were characterized. Nonuniversal electrical behavior was observed with critical exponent t of 2.9 for the composites. The phenomenon was interpreted in terms with tunneling-percolation model. The effects of shearing frequency and particle concentration on the rheological behavior of the composites were investigated. A second plateau of storage modulus and strong shear thinning behavior were observed at low frequencies induced by aggregation of fillers. And the rheological percolation threshold is found to coincide well with the electrical one.

• Periodical: Applied Mechanics and Materials (Volumes 333-335)
• Pages: 1872-1875
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.333-335.1872
• Online since: July 2013
• Authors: Xi Liang Chen, Peng Cui, Yan Pei Ji
• Keywords: Carbon Black (CB), Conductive Property, Rhological Property

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