%0 Journal Article
%T Carbon Nanotubes-Epoxy Composites: The role of acid treatment in Thermal and Electrical Conductivity
%+ Laboratoire Charles Coulomb (L2C)
%+ National Institute for Interdisciplinary Science and Technology
%A Metz, Renaud
%A Diaz-Chacon, Lurayni
%A Aznar, Raymond
%A Alvarez, Laurent
%A Ananthakumar, S.
%A Bantignies, Jean-Louis
%< avec comité de lecture
%Z L2C:16-091
%@ 0891-6152
%J Experimental Heat Transfer
%I Taylor & Francis
%P 1521-0480
%8 2016-03-03
%D 2016
%R 10.1080/08916152.2016.1161675
%Z Environmental Sciences/Environmental Engineering
%Z Engineering Sciences [physics]/Materials
%Z Engineering Sciences [physics]/Electric powerJournal articles
%X Wet acid oxidation treatment methods have been widely reported as an effective method to purify and oxidize the surface of industrial multi-walled carbon nanotubes (MWCNT). This work examines the use of a concentrated HNO3/H2SO4 mixture in an attempt to optimize the purification procedure of industrial MWCNT with diameter distribution statistics. It is shown that acid treatments of several hours are enough to purify the nanotubes. The electrical and thermal conductivities of epoxy composites containing 0.05-0.25 wt. % of acid-treated MWCNT has been studied. The electrical conductivity of the composites decreases by more than three orders, whereas the thermal conductivity of the same specimen increases very modestly as a function of the filler content.
%G English
%L hal-01340964
%U https://hal.science/hal-01340964
%~ SDE
%~ CNRS
%~ L2C
%~ GIP-BE
%~ MIPS
%~ UNIV-MONTPELLIER
%~ UM-2015-2021