Rodriguez-Uicab, O;
Aviles, F;
Gonzalez-Chi, PI;
Canche-Escamilla, G;
Duarte-Aranda, S;
Yazdani-Pedram, M;
Toro, P;
... Rubio, J; + view all
(2016)
Deposition of Carbon Nanotubes Onto Aramid Fibers Using as-received and Chemically Modified Fibers.
Applied Surface Science
, 385
pp. 379-390.
10.1016/j.apsusc.2016.05.037.
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Abstract
Multiwall carbon nanotubes (MWCNTs) oxidized by an acid treatment were deposited on the surface of as-received commercial aramid fibers containing a surface coating (“sizing”), and fibers modified by either a chlorosulfonic treatment or a mixture of nitric and sulfuric acids. The surface of the aramid fiber activated by the chemical treatments presents increasing density of CO, COOH and OH functional groups. However, these chemical treatments reduced the tensile mechanical properties of the fibers, especially when the nitric and sulfuric acid mixture was used. Characterization of the MWCNTs deposited on the fiber surface was conducted by scanning electron microscopy, Raman spectroscopy mapping and X-ray photoelectron spectroscopy. These characterizations showed higher areal concentration and more homogeneous distribution of MWCNTs over the aramid fibers for as-received fibers and for those modified with chlorosulfonic acid, suggesting the existence of interaction between the oxidized MWCNTs and the fiber coating. The electrical resistance of the MWCNT-modified aramid yarns comprising ∼1000 individual fibers was in the order of MΩ/cm, which renders multifunctional properties.
| Type: | Article |
|---|---|
| Title: | Deposition of Carbon Nanotubes Onto Aramid Fibers Using as-received and Chemically Modified Fibers |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.apsusc.2016.05.037 |
| Publisher version: | https://doi.org/10.1016/j.apsusc.2016.05.037 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Aramid fiber, carbon nanotubes, surface treatment, mechanical properties, electrical properties, multifunctional. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > MAPS Faculty Office UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > MAPS Faculty Office > Institute for Materials Discovery |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10059422 |
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