Critical behavior of electrical conductivity for reduced graphene oxide-epoxy resin composites
Joint Authors
Nioua, Y.
al-Buazzawi, S.
Melo, B. M. G.
Prezas, P. R.
Ashur, M. E.
Fattum, A.
Tuhami, M. E.
Graça, M. P. F.
Costa, L. C.
Source
Issue
Vol. 13, Issue 3 (31 Dec. 2020), pp.181-190, 10 p.
Publisher
Yarmouk University Deanship of Research and Graduate Studies
Publication Date
2020-12-31
Country of Publication
Jordan
No. of Pages
10
Main Subjects
Abstract EN
In this paper, we analyze the dc and ac electrical conductivities, in the 240 to 400 K temperature range and 102 to 106 Hz frequency range, of a percolating system synthesized by mixing reduced graphene oxide (rGO) particles in insulating epoxy resin matrix, diglycidyl ether of bisphenol A (DGEBA).
We found that the dc electrical conductivity of the samples is strongly related to the rGO content, indicating a percolating behavior with percolation threshold ≈ 4 %.
The critical behavior of the dc electrical conductivity as a function of the temperature indicates a strong positive temperature coefficient and a negative temperature coefficient of resistivity below and above the transition temperature Tg, respectively.
Moreover, the results showed that the dc conductivity obeys the Arrhenius law and the ac electrical conductivity is both frequency and temperature dependent and follows the Jonscher’s power law.
American Psychological Association (APA)
Nioua, Y.& al-Buazzawi, S.& Melo, B. M. G.& Prezas, P. R.& Ashur, M. E.& Graça, M. P. F.…[et al.]. 2020. Critical behavior of electrical conductivity for reduced graphene oxide-epoxy resin composites. Jordan Journal of Physics،Vol. 13, no. 3, pp.181-190.
https://search.emarefa.net/detail/BIM-1280007
Modern Language Association (MLA)
Nioua, Y.…[et al.]. Critical behavior of electrical conductivity for reduced graphene oxide-epoxy resin composites. Jordan Journal of Physics Vol. 13, no. 3 (Dec. 2020), pp.181-190.
https://search.emarefa.net/detail/BIM-1280007
American Medical Association (AMA)
Nioua, Y.& al-Buazzawi, S.& Melo, B. M. G.& Prezas, P. R.& Ashur, M. E.& Graça, M. P. F.…[et al.]. Critical behavior of electrical conductivity for reduced graphene oxide-epoxy resin composites. Jordan Journal of Physics. 2020. Vol. 13, no. 3, pp.181-190.
https://search.emarefa.net/detail/BIM-1280007
Data Type
Journal Articles
Language
English
Notes
Record ID
BIM-1280007