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Fire Retardant Additives for Polymeric Materials. Part 1. Char Formation From Silica Gel-Potassium Carbonate.


pdf icon Fire Retardant Additives for Polymeric Materials. Part 1. Char Formation From Silica Gel-Potassium Carbonate. (913 K)
Gilman, J. W.; Ritchie, S. J.; Kashiwagi, T.; Lomakin, S. M.

NISTIR 6030; June 1997.

U.S./Japan Government Cooperative Program on Natural Resources (UJNR). Fire Research and Safety. 13th Joint Panel Meeting. Volume 2. March 13-20, 1996, Gaithersburg, MD, Beall, K. A., Editor(s), 261-270 pp, 1997.

Fire and Materials, Vol. 21, No. 1, 23-32, 1997.

Available from:

National Technical Information Service
Order number: PB97-184204

Keywords:

fire safety; fire research; fire retardants; additives; char formation; polymers; silica gel; cone calorimeters; thermoplastics; oxygen index; gasification

Abstract:

Silica gel combined with potassium carbonate is an effective fire retardant for a wide vareity of common polymers (at only 10 wt. % total additive) such as polypropylene, nylon, polymethyl methacrylate, poly(vinyl alcohol), cellulose, and to a lesser extent polystyrene and styrene-acrylonitrile. The peak heat release rate is reduced by up to 68% without significantly increasing the smoke or carbon monoxide levels during the combustion.