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Influence of silver nanowires on thermal and electrical behaviors of a poly(epoxy) coating for aeronautical application

Bedel, Vincent and Lonjon, Antoine and Dantras, Eric and Bouquet, Michel Influence of silver nanowires on thermal and electrical behaviors of a poly(epoxy) coating for aeronautical application. (2018) Journal of Applied Polymer Science, 135 (47). 1-9. ISSN 0021-8995

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Official URL: https://doi.org/10.1002/APP.46829

Abstract

Thermal and electrical behaviors of a poly(epoxy) coating with high electrical conductivity used for aeronautic applications are investigated. The poly(epoxy) used is designed for resin transfer molding (RTM) applications, it have a low viscosity at room temperature (around 1 Pa s) and a high Tg (>160°C). This study details the influence of silver nanowires with a high aspect ratio, on the thermal behavior such as the relative degree of reaction α and the kinetics parameters thanks to dynamic and isothermal differential scanning calorimetry. Conductivity measurements of surface and volume have permitted to determine a very low percolation threshold at around 0.7% in volume. The value of electrical conductivity above the percolation threshold is upper than 102 S m−1 and the lowest surface resistivity was measured around 13 mΩ sq−1 both for 8% in volume of AgNWs. This kind of coating has a great interest for lightning strike protection of aircraft parts due to the high electrical conductivity obtained with a low overweight.

Item Type:Article
HAL Id:hal-01962096
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)
Other partners > IRT Saint Exupéry - Institut de Recherche Technologique (FRANCE)
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Deposited By: cirimat webmestre
Deposited On:20 Dec 2018 12:41

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