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Fire‐retardant additives for polymeric materials—I. Char formation from silica gel–potassium carbonate
Author(s) -
Gilman Jeffrey W.,
Ritchie Steven J.,
Kashiwagi Takashi,
Lomakin Sergey M.
Publication year - 1997
Publication title -
fire and materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.482
H-Index - 58
eISSN - 1099-1018
pISSN - 0308-0501
DOI - 10.1002/(sici)1099-1018(199701)21:1<23::aid-fam591>3.0.co;2-o
Subject(s) - fire retardant , char , potassium carbonate , polypropylene , vinyl alcohol , cellulose , polystyrene , polymer , chemistry , polymer chemistry , acrylonitrile , pyrolysis , materials science , chemical engineering , organic chemistry , copolymer , engineering
Silica gel combined with potassium carbonate is an effective fire retardant for a wide variety of common polymers (at mass fraction of only 10% total additive) such as polypropylene, nylon, polymethylmethacrylate, 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. © 1997 by John Wiley & Sons, Ltd.