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Conducting and Antistatic Composites for Space Applications

Published online by Cambridge University Press:  01 February 2011

Mircea Chipara ,
Jagannathan Sankar ,
Petre Notinger ,
Denis Panaitescu ,
David Hui ,
Gheorghe V. Aldica ,
Magdalena D. Chipara  and
Kin-tak Lau
Mircea Chipara
Affiliation:
Indiana University Cyclotron Facility, Indiana University, Bloomington, Indiana
Jagannathan Sankar
Affiliation:
Department of Mechanical Engineering, North Carolina A&T State University, Greensboro, North Carolina
Petre Notinger
Affiliation:
Politehnica University, Bucharest, Romania
Denis Panaitescu
Affiliation:
National Institute for Materials Physics, Bucharest, Romania
David Hui
Affiliation:
Department of Mechanical Engineering, University of New Orleans, New Orleans, Louisiana
Gheorghe V. Aldica
Affiliation:
National Institute for Materials Physics, Bucharest, Romania
Magdalena D. Chipara
Affiliation:
Indiana University Cyclotron Facility, Indiana University, Bloomington, Indiana
Kin-tak Lau
Affiliation:
Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hong Kong, Hong Kong
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Abstract

The percolative dependence of the DC conductivity on the volume concentration of fillers for composites obtained by dispersing conducting particles into polymeric matrices is studied in detail. An empirical Boltzmann like dependence is proposed for the modeling of the dependence of DC conductivity versus filler concentration. This expression allows for a more accurate determination of the percolation threshold in the case of broad percolations. It is shown that the loading of the polymeric matrices with conducting fillers produces percolative-like changes of various physical properties (such as the reciprocal of the tensile strength and the reciprocal of the double integral of the resonance spectrum). Experimental mechanical, electrical, and electron spin resonance data on polyvinylchloride-carbon, polyvinylchloride-polyaniline, and polyethylene-polyaniline composites are reported.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 851: Symposium NN – Materials for Space Applications , 2004 , NN8.11
Copyright
Copyright © Materials Research Society 2005

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References

REFERENCES

1. Todoroki, Akira, Tanaka, Yuuki, Delamination identification of cross-ply graphite/epoxy composite beams using electric resistance change method, Composites Science and Technology 62, 629–639(2002).Google Scholar
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