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Percolative silver nanoplates/PVDF nanocomposites: Bulk and surface electrical conduction

Audoit, Jérémie and Laffont-Dantras, Lydia and Lonjon, Antoine and Dantras, Eric and Lacabanne, Colette Percolative silver nanoplates/PVDF nanocomposites: Bulk and surface electrical conduction. (2015) Polymer, 78. 104-110. ISSN 0032-3861

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Official URL: http://dx.doi.org/10.1016/j.polymer.2015.09.062

Abstract

Electrically conductive polymer composites have been elaborated by dispersing silver microplates into a polyvinylidene fluoride (PVDF) matrix. Silver microplates have been successfully synthesized. Their mean lateral length is about 1.15 mm, presenting a moderate aspect ratio (12e25). Synthesis is easily controlled and can produce 1e500 mg depending on the volume and the concentration of the solutions used. Electrical bulk and surface conductivity of the composites containing different filler fractions (4e20 vol.%) have been determined for each sample. Electrical percolation has been observed for each situation and was determined at 5.9 vol.% for bulk conductivity (through the thickness), while the value is shifted to 6.9 vol.% when surface conductivity is considered. The gap between the two values of percolation threshold is attributed to the orientation of fillers. Bulk conductivity and surface resistivity reaches 12.9 S m�1 and 0.123 U/☐ respectively at filler fraction of 15 vol.%.

Item Type:Article
Additional Information:The definitive version is available at http://www.sciencedirect.com The original PDF of the article can be found at Polymer website : http://www.sciencedirect.com/science/article/pii/S0032386115302676
HAL Id:hal-01308066
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
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Deposited By: cirimat webmestre
Deposited On:21 Oct 2015 12:28

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