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- Title
Extraordinary synergy in the thermal and electric properties of polymer matrix reinforced with hybrid fillers.
- Authors
Perets, Y. S.; Vovchenko, L. L.; Matzui, L. Y.; Zhuravkov, A.; Trukhanov, A. V.; Lazarenko, O. A.
- Abstract
The effect of the incorporation of different combinations of electric conducting and non-conducting nanofillers into epoxy resin on the thermal and electric conductivity was studied. Graphite nanoplatelets (GNPs), multi-wall carbon nanotubes (MWCNTs) and carbon fibers (CFs) were used as the conductive fillers. The non-conductive ones were boron nitride (BN) or barium hexaferrite (BaFe12O19). The content of nanocarbon in composite materials (CMs) was varied from 1.0 to 6.0 vol%, the content of dielectric filler in composite materials was equal to 15.0 vol% boron nitride and 8.0 vol% BaFe12O19, respectively. The combination of electroconductive nanocarbon and non-conductive boron nitride particles showed an increase of the thermal conductivity (by a factor of 2 for hybrid composite materials boron nitride/graphite nanoplatelet/epoxy (4.5 vol% of nanocarbon) compared to the thermal conductivity of composite materials with single graphite nanoplatelets filler) and the electric conductivity, whereas the hybrid conductive fillers of various morphology (graphite nanoplatelets/carbon nanotubes or graphite nanoplatelets/carbon fibers) did not show an improvement. On the other hand, the use of graphite nanoplatelets/carbon nanotubes and graphite nanoplatelets/carbon fibers hybrid fillers lead to the anisotropy of the electric conductivity and a reversible change of the electric resistance after a compression up to 50 MPa due to improved elastic properties.
- Subjects
THERMAL properties of polymers; ELECTRIC properties of epoxy resins; GRAPHITE; ELECTRIC properties of carbon nanotubes; THERMAL conductivity measurement; PRICES
- Publication
Materialwissenschaft und Werkstoffechnik, 2016, Vol 47, Issue 2/3, p278
- ISSN
0933-5137
- Publication type
Article
- DOI
10.1002/mawe.201600493