✦ LIBER ✦

Room temperature resistance relaxation behavior for carbon black filled conductive polymer composites

✍ Scribed by Jianfeng Zhou; Yihu Song; Qiang Zheng; Xian Jiang; Bo Shui

Publisher: John Wiley and Sons
Year: 2007
Tongue: English
Weight: 130 KB
Volume: 107
Category: Article
ISSN: 0021-8995
DOI: 10.1002/app.27495

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✦ Synopsis

Abstract

Room temperature resistance relaxation was studied with respect to carbon black (CB) volume fraction, the type of polymer matrix, and the environment. It was found that resistance of CB filled poly(methylvinylsiloxane) and polypropylene (PP) conductive composites changed at room temperature with different directions and amplitudes, depending on the filler volume fraction and the environment. The room temperature resistance relaxation was ascribed to the local Joule heat at the tunneling junction or the swelling effect of the solvents. On the other hand, CB filled immiscible PP/Nylon 1212 blends exhibited a stable electrical conduction due to the selective distribution of CB aggregates along the interface between polymer matrices. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci, 2008

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