- Author
- Vanpee, M. | Chien, J. C. W.
- Title
- Flame Suppression by Chemical Inhibitors. Final Report. May 1, 1978-June 17, 1979.
- Coporate
- Massachusetts Univ., Amherst
- Sponsor
- National Institute of Standards and Technology, Gaithersburg, MD
- Contract
- NBS-GRANT-7-9010
- Keywords
- chemical inhibition | flame inhibition | combustion | pyrolysis | flame research
- Abstract
- Experimental studies of polymer combustion and flame inhibition were pursued in two distinct aspects. Polymer combustion is preceeded by thermal and oxidative pyrolysis for the polymer to liberate volatile combustible fragments which is followed by highly exothermic combustion processes of the flame. Flame retardant can be affected by (a) inhibition of the crackup processes or by (b) poisoning of the flame. State of the art flame retardants are compounds containing Cl, Br, Sb and P. These elements are of relatively low efficiency thus requiring from 20 to 40 weight percent of additive to achieve adequate levels of flame retardancy.