Discontinuity of physical properties of carbon nanotube/polymer composites at the percolation threshold - Archive ouverte HAL Access content directly
Journal Articles Journal of Non-Crystalline Solids Year : 2014

Discontinuity of physical properties of carbon nanotube/polymer composites at the percolation threshold

Abstract

Evolution of DC conductivity with double-walled carbon nanotube concentration in a polyamide 11 matrix displays the electrical percolation phenomenon. The percolation threshold is observed for this composite at 0.85 wt.%. Thermal, mechanical and dielectric manifestations of the glass transition have been investigated as a function of carbon nanotube content. Thermal and mechanical analyses have shown a depression of the glass transition temperature or its mechanical manifestation at the percolation threshold. Regarding the dielectric modulus, three distinct behaviors (below, at, and above percolation threshold) have been observed. A discussion about the interactions between the polymer matrix and the conductive fillers will be proposed to further the understanding of the discontinuity of physical properties at the percolation threshold.
Fichier principal
Vignette du fichier
Carponcin_11556.pdf (497.77 Ko) Télécharger le fichier
Origin : Files produced by the author(s)
Loading...

Dates and versions

hal-00992184 , version 1 (16-05-2014)

Identifiers

Cite

Delphine Carponcin, Eric Dantras, Jany Dandurand, Gwenaëlle Aridon, Franck Levallois, et al.. Discontinuity of physical properties of carbon nanotube/polymer composites at the percolation threshold. Journal of Non-Crystalline Solids, 2014, vol. 392-393, pp. 19-25. ⟨10.1016/j.jnoncrysol.2014.03.022⟩. ⟨hal-00992184⟩
246 View
238 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More