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Conductive sizing for improving electrical conductivity of carbon fiber/polyaryl ether ketone/AgNWs composites

Audoit, Jérémie and Quiroga Cortes, Luis Enrique and Racagel, Sébastien and Lonjon, Antoine and Dantras, Eric and Lacabanne, Colette Conductive sizing for improving electrical conductivity of carbon fiber/polyaryl ether ketone/AgNWs composites. (2019) Journal of Applied Polymer Science, 136 (34). 1-8. ISSN 0021-8995

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Official URL: https://doi.org/10.1002/app.47872


The aim of this work is to enhance the electrical conductivity of PAEK/continuous carbon fiber (CF) composites while maintaining their mechanical properties. A conductive sizing was elaborated by mixing polyetherimide (PEI) with silver nanoplates (AgNpts) in suspension in dichloromethane. An aqueous PEI formulation was used as insulating sizing reference. The presence of AgNpts into the sizing enhances electrical conductivity up to 0.2 S.m−1 for a silver content ∼ 0.2 vol % without any modification of mechanical properties. The influence of conductive sizing on PAEK–AgNWs/CF was observed. For low AgNWs content lower (<1 vol %); the conductive sizing increases the electrical conductivity of the composite by one decade. This result shows that both types of Ag particles participate to the conductive path. For higher AgNWs content, electrical conductivity (200 S.m−1) is independent from the AgNpts content: the conductive path is only constituted by AgNWs. Mechanical properties of such composites show that the value of the conservative modulus is almost the same, while the dissipative modulus slightly increases. The global mechanical properties of the composite are preserved despite the addition of the CF, AgNWs, and AgNpts.

Item Type:Article
HAL Id:hal-02188144
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 - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Laboratory name:
Conseil Régional Midi Pyrénées/France
Deposited On:18 Jul 2019 09:44

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