Journal
JOURNAL OF NON-CRYSTALLINE SOLIDS
Volume 391, Issue -, Pages 106-111Publisher
ELSEVIER
DOI: 10.1016/j.jnoncrysol.2014.03.016
Keywords
Nanowires; PERK; Composites; Conductivity; Mechanical properties
Funding
- DGCIS
- Conseil Regional de la Region Midi-Pyrenees in the framework of the COSMIC program
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High-performance conductive thermoplastic composites poly(ether ketone ketone) (PEKK)/silver nanowires were elaborated by melt blending. Silver nanowires (AgNWs) with high aspect ratio (xi similar to 220) were elaborated through the polyol process in presence of poly(vinyl pyrrolidone) (PVP) and ethylene glycol. Scanning electron microscopy observations of nanowires were performed after an adapted cleaning process. The dispersion of NWs in the polymeric matrix was evaluated. A very low percolation threshold of 0.6 vol% was obtained. Electrical conductivity values obtained above the percolation threshold were among the highest measured for low-filled conductive polymer composites. The influence of AgNWs on the PERK matrix has been investigated by differential scanning calorimetry and dynamic mechanical analyses. It is important to note that thermal and dynamic mechanical performances of the polymeric matrix were preserved in composites. (C) 2014 Elsevier B.V. All rights reserved.
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