콘 칼로리미터를 이용한 건축 내장재의 연소거동과 가스유해성 연구

Abstract

For the purpose of making an investigation into the burning behaviors some carpets and boards in the interior materials were tested by using a cone calorimeter with the heat flux of 50kWm-2. Four kinds of carpets and seven kinds of domestic interior materials were measured for the maximum heat release rate, the total heat release and the average heat release, respectively. As a result of the cone calorimeter test(KS F ISO 5660-1) NY(composite) among the carpets was ignitable most easily. In the ignitability or the initial flammability NY was the highest among the carpets. In the heat release rate(HRR) which means the fire intensity PP showed the largest. And Nylon was the largest in the maximum heat release rate. In the smoke production rate Nylon was the highest, and NY was the lowest. In the mass loss rate it was shown that NY > Wool > Nylon > PP >PTT. Carbon mono-oxide is one of the toxic gases released from the combustion. In the CO concentration PPT was the highest, and NY was the lowest. In carbon dioxide concentration PP was the highest, and NY was the lowest. The experimental data indicate that the midium density flooring (MDF) board is high release rate than the other interior materials. And also, MDF was made certain that mass loss of MDF is high than the others. The smoke production was measured by burning that fiberboard and PVC Plastic reisn sheet were high carbon monoxide and carbon dioxide yield than other interior materials. The average smoke release through specific extinction area was shown a similar tendency. Smoke of interiors materials was judged a harmfulness by a stop of mouse. The results were indicated that MDF is more harmful than other interior materials.