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Nanomaterials 2018, 8(11), 912; https://doi.org/10.3390/nano8110912

Acid Free Oxidation and Simple Dispersion Method of MWCNT for High-Performance CFRP

1
Institute of Physics and Materials Science, University of Natural Resources and Life Sciences Vienna, Peter-Jordan-Straße 82, 1190 Vienna, Austria
2
Slovak Academy of Sciences, Polymer Institute, Dúbravská cesta 9, 845 41 Bratislava 45, Slovak Republic
3
Institute of Materials Chemistry, Technische Universität Wien, Getreidemarkt 9/165, 1060 Vienna, Austria
4
Institute of Applied Synthetic Chemistry, Technische Universität Wien, Getreidemarkt 9/163, 1060 Vienna, Austria
5
Electronic Properties of Materials, Universität Wien, Boltzmanngasse 5, 1090 Vienna, Austria
*
Author to whom correspondence should be addressed.
Received: 21 October 2018 / Revised: 30 October 2018 / Accepted: 1 November 2018 / Published: 6 November 2018
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Abstract

Carbon nanotubes (CNT) provide an outstanding property spectrum which can be used to improve a wide range of materials. However, the transfer of properties from the nanoscale to a macroscopic material is a limiting factor. Different approaches of functionalizing the surface of a CNT can improve the interaction with the surrounding matrix but is connected to difficult and expensive treatments, which are usually inconvenient for industrial applications. Here, a simple and eco-friendly method is presented for the oxidation of CNT, where hydrogen peroxide (H2O2) is the only chemical needed and no toxic emissions are released. Also, the extensive step of the incorporation of CNT to an epoxy matrix is simplified to an ultrasonic dispersion in the liquid hardener component. The effectiveness is proven by mechanical tests of produced CNT/CFRP and compared to a conventional processing route. The combination of those simple and cost efficient strategies can be utilized to produce multiscale composites with improved mechanical performance in an ecological and economical way. View Full-Text
Keywords: oxidation; functionalization; eco-friendly; dispersion; carbon fiber reinforced polymer (CFRP); mechanical properties oxidation; functionalization; eco-friendly; dispersion; carbon fiber reinforced polymer (CFRP); mechanical properties
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Singer, G.; Siedlaczek, P.; Sinn, G.; Rennhofer, H.; Mičušík, M.; Omastová, M.; Unterlass, M.M.; Wendrinsky, J.; Milotti, V.; Fedi, F.; Pichler, T.; Lichtenegger, H.C. Acid Free Oxidation and Simple Dispersion Method of MWCNT for High-Performance CFRP. Nanomaterials 2018, 8, 912.

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