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Nanoris : étude des risques d’explosion liés à la production et l’utilisation de nanoparticules

Abstract : In industrial and research fields, nanomaterials provide a growing interest that is leading to many new industrial applications for the last few years. Knowledge about the hazards related to these new materials is nevertheless currently limited. As safe nanomaterial production cannot be permitted without a thorough evaluation of environmental and occupational hazards, risks associated with these materials have to be fully evaluated. Potential toxicity of nanoparticles often comes in the foremind of safety engineers. However, dust fi re and explosion should not be neglected when the dusts are combustible. So far, literature studies concerning the evaluation of explosion and flammability risks of powders were essentially carried out on micronsized materials and did not enable in fact the evaluation of fire and explosion risk probabilities and gravities of nanosized powders. 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 (carbon blacks, carbon nanotubes, aluminium) has been studied as well as the validity of the existing analytical and methodological tools designed to evaluate dust ignition and explosion hazards. It was found that agglomeration of nanoparticles can significantly modify the explosive behaviour of nanopowders, thus leading us to reconsider the actual protocols for the measurement of safety parameters. It is proposed that new instruments allowing a better dispersion should be designed to properly evaluate explosion risks from these nanomaterials
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  • HAL Id : ineris-01869249, version 1



Jacques Bouillard, Alexis Vignes. Nanoris : étude des risques d’explosion liés à la production et l’utilisation de nanoparticules. Rapport Scientifique INERIS, 2009, 2008-2009, pp.63-65. ⟨ineris-01869249⟩



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