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Extrinsic conducting and superconducting polymer systems. III. Electrical properties of PVDF/PS blends containing copper, carbon black, and YBaCuO fillers
Author(s) -
Río C. Del,
Acosta J. L.
Publication year - 1996
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/(sici)1097-4628(19960404)60:1<133::aid-app15>3.0.co;2-9
Subject(s) - carbon black , materials science , composite material , copper , electrical resistivity and conductivity , filler (materials) , superconductivity , ceramic , electrical conductor , conductivity , carbon fibers , metal , dielectric spectroscopy , polymer , conductive polymer , composite number , metallurgy , natural rubber , electrode , condensed matter physics , chemistry , electrical engineering , physics , electrochemistry , engineering
In this work, the electrical characterization of three extrinsic polymeric conducting systems was carried out using complex impedance spectroscopy. These systems were obtained by the incorporation of conducting fillers (carbon black and metallic copper), on the one hand, and, on the other hand, by blending with a superconducting ceramic (YBaCuO). The experimental results prove that the electrical characteristics of these systems vary as a function of the nature of the filler added. In the case of metallic copper, the resulting composites posses a conductivity which is intermediate between insulating materials and semiconductors. When carbon black is incorporated in concentration above 10%, the composites may be considered as metalliclike from the point of view of conductivity. Finally, when the filler is YBaCuO, the low conductivity values obtained are indicative of insulating materials regardless of their composition. © 1996 John Wiley & Sons, Inc.