Influence of the content of solid phase particles in foam on the foam-powder extinguishing compositions. thermal stability

Influence of the content of solid phase particles in foam on the foam-powder extinguishing compositions. thermal stability

Koksharov A.V., Ph. D. of of chemical Sciences, Docent; Gaynullina E.V., Ph. D. of technical Sciences, Docent; Kondratieva M.L., Ph. D. of of chemical Sciences
Ural Institute of State Fire Service of EMERCOM of Russia

The thermal stability of foam containing silicon oxide, aluminum oxide, and talc powders was studied in this paper. It was found that introducing the powder into the foam significantly decreases its destruction rate under temperature conditions. Increasing the foam stability contributes to the accumulation of liquid and powder on its surface, which are formed as a result of the upper foam layer destruction and shield heat flows.

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