Effect of dispersing aid on electrical and mechanical behavior of carbon black-filled latex

Interest in electrically conductive polymer composites, comprised of a conductive filler material (e.g., carbon black) and polymer matrix, is growing rapidly due to the variety of applications that could benefit from a material with the electrical conductivity of a metal combined with the mechanical...

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Bibliographic Details
Published in:Journal of materials science letters 2001-08, Vol.20 (16), p.1523-1526
Main Authors: GRUNLAN, J. C, BLOOM, F. L, GERBERICH, W. W, FRANCIS, L. F
Format: Article
Language:English
Subjects:
Applied sciences
Composites
Exact sciences and technology
Forms of application and semi-finished materials
Polymer industry, paints, wood
Technology of polymers
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Summary:Interest in electrically conductive polymer composites, comprised of a conductive filler material (e.g., carbon black) and polymer matrix, is growing rapidly due to the variety of applications that could benefit from a material with the electrical conductivity of a metal combined with the mechanical properties of a polymer. These composite materials are already being utilized as antistatic layers, electromagnetic interference (EMI) shielding, chemical sensors, and resettable fuse devices. A key feature of these materials is the transition from insulator to conductor that occurs once a critical concentration of conductive filler, known as the percolation threshold, has been added to the polymer matrix. Classical percolation theory predicts a percolation threshold of approximately 16 vol% filler when there is no interaction between polymer matrix and filler. This report examines the effect of a dispersing aid, added during composite mixing, on the electrical and mechanical behavior of carbon black-filled latex composite films.
ISSN:0261-8028
DOI:10.1023/A:1017994917685