Reduction of Smoke Particles from Fire Retarded Wood

Abstract

The characterization of the smoke generation and reduction was pursued on the basis of the size distribution of smoke particles from wood and several fire retarded wood materials. Furnace temperatures were adopted of 300, 400, and 500°C due to the peak temperatures which were obtained from thermogaravimetry. The sizing instrument for smoke particles used a He-Ne laser as the light source, and the particle size range extended from 0.1 to 10 μm in by nine steps. For low smoldering state, the combination of molybdenum, bromine, and phosphate compounds as retardant agents gave the most desirable reduction of smoke particle generation in the experiments. And for higher temperature region, the combination of molybdenum and bromine compounds gave remarkable reduction of smoke generation.