Oxidative pyrolyisis of polymers before flaming ignition

Download
  1. (PDF, 578 KB)
DOIResolve DOI: http://doi.org/10.3801/IAFSS.FSS.1-381
AuthorSearch for: ; Search for:
TypeArticle
ConferenceProceedings of the First International Symposium on Fire Safety Science: 07 October 1985, Gaithersburg, MD, USA
ISBNO-89116-456-1
Pages38190; # of pages: 292
Subjectpyrolosis; polymeric materials; polyethylene; polystyrene; poly(methyl methacrylate); hydrogen- oxygen; flame; infrared spectroscopy; oxidative pyrolysis; ignition; Combustion; pyrolyse; materiau polymérique
AbstractThin 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
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
IdentifierIRC-P-1375
NRC number25922
353
NPARC number20375137
Export citationExport as RIS
Report a correctionReport a correction
Record identifier188e7727-abbf-466b-9a6c-9c9902a1a1bf
Record created2012-07-23
Record modified2016-05-09
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)