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Stability of electrical properties of conducting polymer composites
Author(s) -
Omastová Maria,
Prokeš Ján,
Košina Stanislav,
Hlavatá Drahomíra
Publication year - 2001
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/1521-3900(200106)170:1<241::aid-masy241>3.0.co;2-a
Subject(s) - polypropylene , carbon black , materials science , composite material , crystallinity , thermal stability , polypyrrole , electrical resistivity and conductivity , composite number , polymer , conductivity , conductive polymer , chemical engineering , chemistry , polymerization , natural rubber , electrical engineering , engineering
The effect of slow cycle heating and cooling on the stability of electrical properties of two polymer composites‐ polypropylene/polypyrrole (PP/PPy) and polypropylene/carbon black (PP/CB) ‐ was investigated. Conductivity in composites was measured in heating/cooling cycles in the temperature range from 16°C to 105°C in PP/PPy and to 125°C in PP/CB, respectively. It was found that the thermal treatment caused the decrease of PP/PPy conductivity while in case of PP/CB the treatment increased the electrical conductivity. The positive effect was explained by increased crystallinity in the thermally treated composite.