Effect of conducting fillers on the microstructure and electrical conductivity of thermoplastic polymer composites

SummaryThis paper reports on the synthesis and characterization (electrical, mechanical, thermal and dynamic mechanical) of electrically conducting polymer composites based on thermoplastic matrices (low density polyethylene (LDPE) and polypropylene (PP)) and two conducting fillers: iron particles (...

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Bibliographic Details
Published in:Polymer bulletin (Berlin, Germany) Germany), 2006-06, Vol.57 (2), p.199-206
Main Authors: ACOSTA, J. L, OJEDA, M. C, DEL RIO, C
Format: Article
Language:English
Subjects:
Applied sciences
Carbon black
Composites
Conducting polymers
Crystal growth
Electrical properties
Electrical resistivity
Exact sciences and technology
Fillers
Forms of application and semi-finished materials
Iron
Low density polyethylenes
Mechanical properties
Polymer industry, paints, wood
Polymer matrix composites
Technology of polymers
Thermodynamic properties
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Summary:SummaryThis paper reports on the synthesis and characterization (electrical, mechanical, thermal and dynamic mechanical) of electrically conducting polymer composites based on thermoplastic matrices (low density polyethylene (LDPE) and polypropylene (PP)) and two conducting fillers: iron particles (Fe) and carbon black (CB). The addition of Fe allows the easy incorporation of higher amounts of CB. Results suggest that the electrical and mechanical properties of these materials are improved by the presence of both fillers being necessary the addition of CB to achieve interesting values of conductivity. On the other hand, the crystalline structure of the polymer matrix is gradually reduced with the incorporation of both fillers but Fe by itself does not affect the geometry of growing crystals.
ISSN:0170-0839
1436-2449
DOI:10.1007/s00289-006-0542-2