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AuthorRahaman, Mostafizur
AuthorAldalbahi, Ali
AuthorGovindasami, Periyasami
AuthorKhanam, Noorunnisa P.
AuthorBhandari, Subhendu
AuthorFeng, Peter
AuthorAltalhi, Tariq
Available date2020-10-13T10:54:02Z
Publication Date2017
Publication NamePolymers
ResourceScopus
ISSN20734360
URIhttp://dx.doi.org/10.3390/polym9100527
URIhttp://hdl.handle.net/10576/16416
AbstractThe electrical conductivity of extrinsically conducting polymer composite systems passes through a transition state known as percolation threshold. A discussion has been made on how different Sigmoidal models (S-models), such as Sigmoidal-Boltzmann (SB), Sigmoidal-Dose Response (SD), Sigmoidal-Hill (SH), Sigmoidal-Logistic (SL), and Sigmoidal-Logistic-1 (SL-1), can be applied to predict the percolation threshold of electrical conductivity for ethylene vinyl acetate copolymer (EVA) and acrylonitrile butadiene copolymer (NBR) conducting composite systems filled with different carbon fillers. An interesting finding that comes from these observations is that the percolation threshold for electrical conductivity determined by SB and SD models are similar, whereas, the other models give different result when estimated for a particular composite system. This similarity and discrepancy in the results of percolation threshold have been discussed by considering the strength, weakness, and limitation of the models. The percolation threshold value for the composites has also been determined using the classical percolation theory and compared with the sigmoidal models. Moreover, to check the universal applicability, these Sigmoidal models have also been tested on results from some published literature. Finally, it is revealed that, except SL-1 model, the remaining models can successfully be used to determine the percolation threshold of electrical conductivity for extrinsically conductive polymer composites. 1 2017 by the authors.
Languageen
PublisherMDPI AG
SubjectElectrical conductivity
Percolation threshold
Polymer composites
Sigmoidal models
TitleA new insight in determining the percolation threshold of electrical conductivity for extrinsically conducting polymer composites through different sigmoidal models
TypeArticle
Issue Number10
Volume Number9
dc.accessType Open Access


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