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Inflammabilité et explosivité des nanopoudres : effets-nano ou nano-effets ?

Abstract : In the industrial and research fields, nanomaterials provides a growing interest and many industrial applications have already been developed in the last years. However, knowledge about the hazards related to these new materials is currently limited. As safe nanomaterial production cannot be permitted without a deeper evaluation of environmental and occupational hazards, hazards related to nanoparticles have to be evaluated. One often thinks about the potential toxicity of nanoparticles. However, dust fire and explosion should not be neglected when the dusts are combustible, which may often be the case. So far, literature studies concerning the evaluation of explosion and flammability risks of powders were essentially carried out on micron-sized materials and do not enable in fact to evaluate fire and explosion risk probabilities and gravities of nanopowders. The main goal of this work is to study explosion and ignition risks related to nanopowders. In particular, the evaluation of the explosion sensitivity and severity of typical nanomaterials has been studied as well as the validity of the existing analytical and methodological tools designed to evaluate dust ignition and explosion hazards. This work also deals with the methodology applied to a plant and to a laboratory in order to define the best safety barriers which were positioned to ensure the best occupational safety level to all workers and evaluate in a good way the ignition and explosion risks related to the use and production of fluffy nanomaterials. This work will certainly help risk engineers concerned about the handling and the production of combustible nanopowders.
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Submitted on : Friday, April 4, 2014 - 10:22:00 AM
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  • HAL Id : ineris-00973333, version 1
  • INERIS : EN-2009-060



Alexis Vignes, Olivier Dufaud, Laurent Perin, Jacques Bouillard, Dominique Thomas. Inflammabilité et explosivité des nanopoudres : effets-nano ou nano-effets ?. 8. Congrès International pluridisciplinaire QUALITA 2009, Mar 2009, Besançon, France. pp.NC. ⟨ineris-00973333⟩



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