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Electrical and mechanical percolation in graphene-latex nanocomposites

Abstract : Conductive composites based on few layer graphene are of primary interests. In this work latex based composites were produced leading to a specific cellular morphology. Highly conductive graphene-based composite materials have been produced through a solvent-free procedure. Both the mechanical and conductivity behaviors were successfully described using a percolation approach that confirms the presence of a three dimensional filler network efficiently spread across the material. The influence of the aspect ratio between the conductive filler and the latex nanosphere drove the study. It was demonstrated experimentally that the tuning of the cell dimensions of the composite morphology influences the percolation threshold and the reachable maximum conductivity and reinforcement. These experimental results are consistent with phenomenological models based on the statistical percolation theory. (C) 2014 Elsevier Ltd. All rights reserved.
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Amélie Noël, Jenny Faucheu, J.-M. Chenal, Jean-Paul Viricelle, Elodie Bourgeat-Lami. Electrical and mechanical percolation in graphene-latex nanocomposites. Polymer, Elsevier, 2014, 55 (20), pp.5140-5145. ⟨10.1016/j.polymer.2014.08.025⟩. ⟨emse-01157829⟩



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