Percolation phenomena in carbon black-filled polymeric concrete

L. Rejón*, A. Rosas-Zavala, J. Porcayo-Calderon, V. M. Castaño

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

20 Scopus citations

Abstract

Percolation in carbon black-filled polymeric concrete, is discussed based on the measured changes in electrical conductivity and morphology of the composite at different concentrations of carbon black. The percolation threshold ranged between 6 and 7 wt% (based on resin weight) of carbon black. Above this concentration, the filler particles formed agglomerates in contact with each other, suggesting that the conduction process is nearly ohmic in nature. A power law predicted by percolation theory described the behavior of the conductivity as a function of carbon black content. Microscopic analysis showed the presence of a continuous structure formed by the polyester resin and carbon black, in which silica particles were embedded.

Original languageEnglish
Pages (from-to)2101-2104
Number of pages4
JournalPolymer Engineering and Science
Volume40
Issue number9
DOIs
StatePublished - 2000
Externally publishedYes

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