DataVXACS Applied Materials & InterfacesPaper
journal article·2014-09-10

Experimental and Theoretical Study of the Influence of the State of Dispersion of Graphene on the Percolation Threshold of Conductive Graphene/Polystyrene Nanocomposites

Evgeniy Tkalya, Marcos Ghislandi, Ronald Otten, Mustafa Lotya, Alexander Alekseev, Paul van der Schoot, Jonathan Coleman, Gijsbertus de With, Cor Koning

ACS Applied Materials & Interfaces· Volume 6· Issue 17
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Source abstract

Abstract

The effect of the dispersed state of graphene is studied as a factor influencing the electrical percolation threshold of graphene/polystyrene nanocomposites. We find the percolation threshold of our nanocomposites, prepared with graphene dispersions with different thermodynamic stabilities, degrees of exfoliation, and size polydispersities, to range from 2 to 4.5 wt %. Connectedness percolation theory is applied to calculate percolation thresholds of the corresponding nanocomposites, based on the premise that size polydispersity of graphene platelets in the corresponding solutions must have a strong influence on it. Theory and experimental results agree qualitatively.
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Research context

Nanomaterials

OpenAlex topics: Graphene research and applications · Carbon Nanotubes in Composites · Nanotechnology research and applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Chemical Engineering and Chemistry, Polymer Chemistry Group, Technische Universiteit Eindhoven, P.O. Box 513, 5600 MB Eindhoven, The Netherlands

CETENE-Centro de Tecnologias Estratégicas do Nordeste, Av. Prof. Luiz Freire 01-CDU, Recife 50740-540, Brazil

Laboratory of Materials and Interface Chemistry, Technische Universiteit Eindhoven, 5600 MB Eindhoven, The Netherlands

Theory of Polymers and Soft Matter and Eindhoven Polymer Laboratories, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands

School of Physics, Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin 2, Ireland

Institute for Theoretical Physics, Utrecht University, Leuvenlaan 4, 3584 CE Utrecht, The Netherlands

Funding

Dutch Polymer Institute, Netherlands

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