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Equipment efficiency

Are personal and collective protections effective?

As part of the European projects SCAFFOLD and NANOSAFE 2, the NanoSafety team of CEA Grenoble evaluated the effectiveness of existing personal and collective protection facing an exposure to nanoparticles (jackets, gloves, filters). Studies realized by the "Ecole de technologie supérieure of Montreal" concerned the effects of nanoparticles on gloves and protective clothing.

 Variation in the concentration of titanium in the sampling solutions as a function of the duration of the 50% biaxial deformations for nitrile (NBR) and butylrubber (IIR) samples exposed to nTiO2 powder and to colloidal solutions of nTiO2 [L. Vinches et al., Nanoscience Methods 2 (2013) 1-15].

No nanoparticle penetration was measured through butyl gloves, even after many hours ofdeformations. In the case of nitrile gloves, nanoparticles have penetrated after 7 h (nanoTiO2 powder) and 5 h (nanoTiO2 colloidal solution). The penetration of nanoparticles may be partly explained by the degradationof their physical and mechanical properties following repetitive mechanical deformations and contact with nanoTiO2 liquid carriers.