한국안전학회지 (Journal of the Korean Society of Safety)
- 제6권1호
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- Pages.14-25
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- 1991
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- 1738-3803(pISSN)
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- 2383-9953(eISSN)
Boric acid-Borax-Alum. 계 셀룰로오스 단열재의 훈소특성 연구
Smouldering Combustibility of Cellulose Insulation Treated with Boric acid-Borax-Alum. Formulation
초록
The smouldering combustibility of cellulose insulation treated with boric acid-borax-alum as combustion retardants are examined by cigarette ignition method and electrical cardrige heater method. The alum to be required at an add on level of at least 12% by weight of cellulose treated with boric acid-borax-alum=2 : 1 : 2 fomulatlon if resistance to smouldering combustion by cigarette ignition is to be achived. The optimum electrical ignition source employed by electrical cartidge heater method was 23.2 watts(80V) power level The effectiveness of Alum as a third combstion retardant are acceptable both smouldering resistance and flame resistance at 18% level of all examined formulation.
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