Journal
JOURNAL OF HAZARDOUS MATERIALS
Volume 301, Issue -, Pages 153-162Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jhazmat.2015.08.043
Keywords
Cone calorimeter; Combustion; Aerosol released; Composites; Nanoparticles
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This work investigates the aerosols emitted during combustion of aircraft and naval structural composite materials (epoxy resin/carbon fibers and vinyl ester/glass fibers and carbon nanotubes). Combustion tests were performed at lab-scale using a modified cone calorimeter. The aerosols emitted have been characterized using various metrological devices devoted to the analysis of aerosols. The influence of the nature of polymer matrices, the incorporation of fibers and carbon nanotubes as well as glass reinforcements on the number concentration and the size distribution of airborne particles produced, was studied in the 5 nm-10 mu m range. Incorporation of carbon fibers into epoxy resin significantly reduced the total particle number concentration. In addition, the interlaced orientation of carbon fibers limited the particles production compared to the composites with unidirectional one. The carbon nanotubes loading in vinyl ester resin composites influenced the total particles production during the flaming combustion with changes during kinetics emission. Predominant populations. of airborne particles generated during combustion of all tested composites were characterized by a PN50 following by PN100-500. (C) 2015 Elsevier B.V. All rights reserved.
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