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http://dx.doi.org/10.7731/KIFSE.2019.33.3.009

Heat Risk Assessment of Wood Coated with Boron/Silicone Sol  

Jin, Eui (Fire & Disaster Prevention Research Center, Kangwon National University)
Chung, Yeong-Jin (Department of Fire Protection Engineering, Kangwon National University)
Publication Information
Fire Science and Engineering / v.33, no.3, 2019 , pp. 9-20 More about this Journal
Abstract
This study was examined fire risk properties of wood specimen for the constructional interiors, especially focusing on the fire performance index (FPI) and the fire growth index (FGI) as heat hazard characteristics. Flame retardants were synthesized using boric acid, boronic acid and tetraethoxyorthosilicate. Heat release characteristics were measured by using a cone calorimeter (ISO 5660-1) and cypress was used. The external heat flux as fire intensity was maintained at 50 kW/㎡. The measured fire performance index (FPI) after burning was increased by 1.6 times for boric acid/silicone (BA/Si) sol, each 1.1 times for isobutylboronic acid/silicone (IBBA/Si) sol and phenylboronic acid/silicone (PBA/Si) sol compared with cypress. Fire risk by the fire performance index was increased BA/Si, IBBA/Si ≈ PBA/Si order. The fire growth index was decreased 94% for the BA/Si and 8% for the IBBA/Si sol, and was increased by 17% for the PBA/Si sol. Fire risk by the fire growth index was increased BA/Si, IBBA/Si, PBA/Si order. Overall fire risk was higher in the order of BA/Si < IBBA/Si < PBA/Si.
Keywords
Heat release rate; Total heat release; Fire performance index (FPI); Fire growth index (FGI); Boron/silicone sol;
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