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Combustion Retardation Effects of Metal Salts Using Impregnation Method  

Song, Young-Ho (Department of Safety Engineering, Chungbuk National University)
Kang, Min-Ho (Department of Safety Engineering, Chungbuk National University)
Chung, Kook-Sam (Department of Safety Engineering, Chungbuk National University)
Publication Information
Journal of the Korean Society of Safety / v.19, no.1, 2004 , pp. 77-80 More about this Journal
Abstract
The purpose of this study was to examine effects of combustion retardation for paper filter impregnated metal salts by measurement of extinguishing concentration, CO concentration, and limiting oxygen index(LOI, ASTM D 2863). And thermal stability analysis using DSC was carried out. In case of extinguishing concentration, $NH_4H_2PO_4$ showed excellent effect of combustion retardation. The result of LOI measurement showed that metal salts possessed good effect of combustion retardation. And thermal analysis using DSC showed that these metal salts possessed thermal stability. In case of CO concentration, CO concentration was increasing because of imperfect combustion process due to combustion retardation effect of metal salts.
Keywords
combustion; retardation; metal salt; impregnation; LOI;
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