燃焼抑制剤を含む紙の燃焼

概要

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The flame spread rates of paper sheets, in which powder retardants were applied, were measured. Retardant compounds utilized were NaHCO_3, Na_2CO_3, water, urea, NH_4H_2PO_4, and HPO_3. This paper forcuses mainly on the effectiveness of NaHCO_3. As NaHCO_3 content in the paper sample increased, the spread rate (~2.5 mm/s) by flaming was gradually reduced and propagation by flaming was impossible at a content of 0.6 % by weight. Beyond the ustable region of 0.25 % to 1.6 %, only a spread by smoldering was possible and the spread rate (~0.6 mm/s) continued to increase slightly up to 16 %. Although NaHCO_3 is known to be a powerful suppressant for combustion reaction, its inherent ability effect on carbon combustion by alkali metal compounds causes a blowoff of the diffusion flame attached to the paper sample.
社団法人日本機械学会の論文
1986-03-25