Premium
Cationic UV‐Curable Conductive Composites from Exfoliated Graphite
Author(s) -
Datta Samali,
Htet Maung,
Webster Dean C.
Publication year - 2011
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/mame.201000240
Subject(s) - materials science , graphite , composite material , epoxy , curing (chemistry) , percolation threshold , electrical resistivity and conductivity , electrical conductor , sonication , percolation (cognitive psychology) , composite number , filler (materials) , cationic polymerization , chemical engineering , polymer chemistry , engineering , neuroscience , electrical engineering , biology
Electrically conductive, cationically UV‐cured composites were prepared using exfoliated graphite plates (EGP) with cycloaliphatic epoxy resin and polyalcohol binder system. Exfoliated graphite (EG) was obtained from natural flake graphite through chemical and thermal treatment. Sonication of EG in solvent produced EGP. Characterization of graphite samples by XRD showed structural similarity between original graphite and EGP. UV curing behavior was characterized using photoDSC. Electrical resistivity measurements of the composites as a function of EGP concentration showed that at low filler concentration the binder system can influence the electrical percolation behavior. Some formulations showed electrical percolation at less than 1 vol.‐% of EGP filler.