• Patry, Mickael
• Gelain, Thomas
• Salm, François
• Ouf, Francois Xavier

Abstract

International audience ; Experimental results are reported on the resuspension of particles deposited on polycarbonate (PC) samples representative of glove boxes used in the nuclear industry, under thermal degradation. A parametric study on the influence of particles deposit properties, i.e. equivalent volume diameter, density, morphology and number of mono-layers, was carried out. Significant influence of equivalent volume diameter and density has been identified associated to a peak of release for diameter close to 6 µm and decreasing airborne release fraction (ARF) with increasing density. Furthermore, particle deposit structure has been identified as a major influencing parameter, ARF strongly decreasing for number of mono-layer increasing up to nearly 0.3 and remaining constant above this threshold. Finally, experimental results obtained in the present study have been compared with literature values for proposing a phenomenological description of the airborne release of particles from PC surfaces subjected to thermal degradation.

Topics

• density
• morphology
• surface