Environmentally Safe Fire Retardants for Polymeric Materials. Part 1. Silica Gel: Potassium Carbonate Additive.
Environmentally Safe Fire Retardants for Polymeric
Materials. Part 1. Silica Gel: Potassium Carbonate
Gilman, J. W.; Kashiwagi, T.; Lomakin, S. M.
Materials and Process Challenges: Aging Systems,
Affordability, Alternative Applications. SAMPE
Symposium and Exposition, 41st Proceedings. Volume 41.
Book 1. Society for the Advancement of Material and
Process Engineering (SAMPE). March 24-28, 1996,
Anaheim, CA, 708-713 pp, 1996.
Sponsor:Federal Aviation Administration, Washington, DC
fire retardants; additives; polymers; potassium
carbonates; silica; flammability; char; silica gel
We report here that silica gel combined with potassium
carbonate is an effective fire retardant for a wide
variety of common polymers such as polypropylene, nylon,
polymethyl methacrylate, poly(vinyl alcohol), cellulose,
and to a lesser extent for polystyrene and
styrene-acrylonitrile. The rate of heat release, RHR,
is reduced by up to 68% without increasing the smoke or
carbon monoxide levels during the combustion.