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Journal of Nanomaterials
Volume 2014, Article ID 193154, 11 pages
http://dx.doi.org/10.1155/2014/193154
Research Article

Experimental Study of the Aerosolization from a Carbon Nanotube Bulk by a Vortex Shaker

1Institut National de l’Environnement Industriel et des Risques (INERIS), 60550 Verneuil-en-Halatte, France
2ARKEMA, 92705 Colombes, France
3Université de Technologie de Compiègne (UTC), 60200 Compiègne, France

Received 9 December 2013; Revised 11 March 2014; Accepted 11 March 2014; Published 8 May 2014

Academic Editor: Prashant Kumar

Copyright © 2014 Olivier Louis Claude Le Bihan et al. 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.

Abstract

The growing use of nanomaterials requires the development of tools enabling study of the risks to consumer, worker, and environment. This study relates to the risk of suspension of inhalable particles upon production and/or use of powders constituted of nanoobjects, and more specifically to the potential of the vortex shaker as apparatus for determining the dustiness of a powder and as atmosphere generating tool for experimental toxicology. The powder chosen for this study was Graphistrength C100 (ARKEMA), a multiwalled carbon nanotube. Its agitation in a vortex shaker at 1500 rpm leads to an aerosol divided into four families, from isolated fibres to micronic pellets. The study highlights that the speed of agitation and the geometry of the device are influential parameters, to be systematically taken into account. It concludes that while the technique seems mature to conduct C100 dustiness tests, developments are still necessary to use it routinely for toxicology studies.