Oxidative pyrolyisis of polymers before flaming ignition

From National Research Council Canada

Download	View final version: Oxidative pyrolyisis of polymers before flaming ignition (PDF, 948 KiB)
DOI	Resolve DOI: https://doi.org/10.4224/40001802
Author	Search for: Baignee, A.; Search for: Clark, F. R. S.¹
Affiliation	National Research Council of Canada. NRC Institute for Research in Construction
Format	Text, Article
Conference	The 1st International Symposium on Fire Safety Science: 9-11 October 1985, Gaithersburg, Maryland, USA
Subject	Combustion; pyrolosis; polymeric materials; polyethylene; polystyrene; poly(methyl methacrylate); hydrogen-oxygen; flame; infrared spectroscopy; oxidative pyrolysis; ignition
Abstract	Thin films of polyethylene, polystyrene and poly(methyl methacrylate) were exposed to the wake of a lean hydrogen- oxygen flat flame. Exposure was terminated at times ranging up to the point when flaming combustion began. The films were then analyzed by infrared spectroscopy. Oxidation of polyethylene and polystyrene occurred after a latency period but before ignition. The oxidation rate remained constant despite changes in flame-polymer separation and flame gas equivalence ratio. The latency period before oxidation observed for polyethylene depended on equivalence ratio and separation. No oxidation was observed with poly(methyl methacrylate). A comparison of infrared spectra obtained by transmission through films with spectra obtained by internal reflection spectroscopy, demonstrated that oxidation of polyethylene and polystyrene before ignition is confined to within approximately 5 m of the exposed surface.
Publication date	1986
Publisher	National Research Council of Canada. Institute for Research in Construction
Series	Paper (National Research Council of Canada. Institute for Research in Construction), no. IRC-P-1375.
Original	Baignee, A., and F. Clark. ‘Oxidative Pyrolysis Of Polymers Before Flaming Ignition’. Fire Safety Science 1 (1986): 381–90. https://doi.org/10.3801/iafss.fss.1-381.
Note	Reprinted from: Fire Safety Science, Proceedings of the 1st International Symposium, Gaithersburg, MD, 9-11 October 1985, p. 381-390. DOI: 10.3801/IAFSS.FSS.1-381
Language	English
Peer reviewed	Yes
NRC number	NRCC 25922 NRC-IRC-353
NPARC number	20375137
Export citation	Export as RIS
Report a correction	Report a correction (opens in a new tab)
Record identifier	188e7727-abbf-466b-9a6c-9c9902a1a1bf
Record created	2012-07-23
Record modified	2023-01-10

Date modified:: 2024-07-05