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Electrical conductivity of epoxy/silicone/carbon black composites: Effect of composite microstructure
Author(s) -
Pelíšková Michaela,
Kazantseva Natalia E.,
Prokeš Jan,
Hausnerová Berenika,
Sáha Petr
Publication year - 2014
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.22888
Subject(s) - epoxy , materials science , composite material , composite number , carbon black , silicone , percolation threshold , ultimate tensile strength , conductivity , microstructure , electrical resistivity and conductivity , chemistry , natural rubber , engineering , electrical engineering
The objective of this work is to study the effect of electrical conductivity and physical‐mechanical properties of carbon black (CB) filled polymer composites. This goal is achieved by synthesizing epoxy/silicon phase separated blend structure of composites filled with CB. The percolation threshold of epoxy/silicone/CB composites decreased and the total conductivity increased compared to the pure epoxy/CB composite. A threefold increase was obtained with tensile strength of epoxy/silicone/CB composite with 25 wt% of silicone and 5 wt% of CB in comparison with epoxy/CB systems. This composite has conductivity of about 10 −6 S/cm, which is six orders of magnitude higher than for epoxy/CB composites at the same concentration of CB. POLYM. COMPOS., 35:2234–2240, 2014. © 2014 Society of Plastics Engineers