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Stability of electrical and mechanical properties of polyethylene/carbon black composites
Author(s) -
Omastová Mária,
Prokeš Jan,
Podhradská Silvia,
Chodák Ivan
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<231::aid-masy231>3.0.co;2-e
Subject(s) - carbon black , composite material , materials science , polyethylene , crystallinity , thermal stability , electrical resistivity and conductivity , polymer , polypropylene , carbon fibers , composite number , chemical engineering , natural rubber , electrical engineering , engineering
The stability of electrical and mechanical properties of two kinds of polymer composites ‐ polyethylene/carbon black and polyethylene/carbon black modified by polypyrrole ‐ was investigated during slow cycle heating and cooling. Conductivity in composites was measured in heating/cooling cycles in the temperature range from 16°C to 125°C. It was found that the thermal treatment resulted in the conductivity changes and the mechanical properties of treated composites have also been influenced. The effect was explained by increased crystallinity in the polymer matrix of thermally treated composites.