Effective conductivity in association with model structure and spatial inhomogeneity of polymer/carbon black composites

The relationship between effective conductivity and cell structure of polyethylene/carbon black composites as well as between effective conductivity and spatial distribution of carbon black are discussed. Following Yoshida's model, both structures can be said to be intermediate between the well...

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Bibliographic Details
Published in:Journal of physics. D, Applied physics Applied physics, 1996-05, Vol.29 (5), p.1360-1366
Main Authors: Garncarek, Z, Piasecki, R, Borecki, J, Maj, A, Sudol, M
Format: Article
Language:English
Subjects:
Composite materials
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Conductivity of specific materials
Electronic transport in condensed matter
Exact sciences and technology
Physics
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Summary:The relationship between effective conductivity and cell structure of polyethylene/carbon black composites as well as between effective conductivity and spatial distribution of carbon black are discussed. Following Yoshida's model, both structures can be said to be intermediate between the well known Maxwell-Garnett and Bruggeman limiting structures. Using TEM photographs, it is observed that the larger the inhomogeneity measure H of a two-dimensional representative distribution of carbon black, the smaller is the effective conductivity of the composite. (Abstract quotes from original text)
ISSN:0022-3727
1361-6463
DOI:10.1088/0022-3727/29/5/036