El Malhi, M. and Achour, M.E. and Lahjomri, F. and Bensalah, Y. (1999) Dielectric response in carbon black-epoxy resin composites. Journal of Materials Science Letters, 18 (8). pp. 613-616.

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The dielectric behavior of carbon black-epoxy resin composites was examined in the frequency range of 100 Hz-15 MHz at ambient temperature and for different volume concentrations of carbon black. The carbon black used was Raven 7000 with a diameter of 9 nm and a static electrical conductivity of σs = 350/Ωm-1. The polymer matrix was an epoxy resin DGEBF (ether diglycidylic of bisphenol F) with a DC conductivity of 1.40 10-14 (Ωm)-1 and 1900 kg/m3 specific mass. The results are in qualitative agreement with the dielectric behavior expected near the percolation threshold by the scaling laws and with the prediction of the dielectric universal response on both sides of the insulator-conductor transition.

Item Type: Article
Uncontrolled Keywords: Carbon black; Composition effects; Conductive plastics; Electric conductivity; Epoxy resins; Mathematical models; Nonmetallic matrix composites; Percolation (solid state); Permittivity, Insulator-conductor transition; Percolation threshold, Reinforced plastics
Subjects: Materials Science
Divisions: SCIENTIFIC PRODUCTION > Materials Science
Depositing User: Administrateur Eprints Administrateur Eprints
Last Modified: 31 Jan 2020 15:48
URI: http://eprints.umi.ac.ma/id/eprint/3784

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