Multi-scale assessment of soot using electron microscopy: applications on soot from bench-scale fire of polymers

International audience; Soot is a degradation product of material burning, having the multi-scale fingerprints of the conditions in which it is formed. Micron sized aggregate morphology is dependent on residence times and burning rates, whereas particle size and nanoscale order reflects the burning source and temperature rates. In this work, we will present comparison of techniques for ex-situ analysis of soot probed in-flame from flaming combustion of natural and synthetic polymers, by means of SEM/STEM (Scanning electron microscope in transmission mode) and TEM.