基于CONE法的阻燃中纤板动态燃烧行为研究  

Research on the dynamic combustion behaviors of MDF treated with fire retardant using CONE calorimeter

作　　者：庄标榕 魏起华[1] 谢拥群[1] 魏微[1] 赖莹莹[1] 

机构地区：[1]福建农林大学材料工程学院,福建福州350002

出　　处：《福建农林大学学报（自然科学版）》2015年第6期651-656,共6页Journal of Fujian Agriculture and Forestry University:Natural Science Edition

基　　金：国家自然科学基金资助项目(30871982);国家科技支撑课题资助项目(2008BADA9B01)

摘　　要：采用锥形量热仪法研究磷氮硼基阻燃微胶囊处理中密度纤维板的动态燃烧行为.结果表明:阻燃中纤板与未阻燃处理的中纤板相比,热释放速率峰值从302.9 k W·m^(-2)下降到194.4 k W·m^(-2),总热释放量从119.7 MJ·m^(-2)下降到83.2 MJ·m^(-2),生烟总量从2.2 m^2·m^(-2)下降到0.5 m2·m^(-2),极限氧指数最高值达45%,且纤板燃烧时的成炭率提高,炭层结构完整,强度高.表明磷氮硼基阻燃微胶囊能有效提高中密度纤维板的阻燃性能,Fire resistance of medium-density fiberboard（ MDF） was investigated by monitoring the dynamics of phosphoric-nitrogenboric（ P-N-B） components which is based microcapsules fire retardant. CONE calorimeter was used to evaluate the fire performance of MDF. Results showed that heat release rate（ HRR）,total heat release（ THR）,smoke product rate（ SPR）,total smoke release（ TSR）,and off-gases（ CO and CO_2） release of MDF all significantly decreased when the ratio of fire retardant microcapsules increased. To be specific,peak value of HRR dropped from 302. 9 k W·m^-2 to 194. 4 k W·m^-2,resulting in decreased THR from119. 7 MJ·m^-2 to 83. 2 MJ·m^-2. TSR decreased to 0. 5 m^2·m^-2 with the maximum LOI being 45%. To summarize,microcapsules fire retardant significantly improves the fire resistance of MDF.

关 键 词：中密度纤维板 阻燃微胶囊 锥形量热仪 阻燃抑烟 成炭率 极限氧指数 

分 类 号：TS653.6[轻工技术与工程]