有机外保温材料的中尺度燃烧行为  

The combustion behavior of typical thermal insulation materials by medium-scale testing

作　　者：王俊胜[1] 刘丹[1] 王国辉[1] 韩伟平[1] 张清林[1] 

机构地区：[1]公安部天津消防研究所,天津300381

出　　处：《消防科学与技术》2015年第8期985-988,共4页Fire Science and Technology

基　　金：国家重大基础研究计划(973计划)项目(2012CB719701);公安部消防局应用创新项目(2014XFCX13)

摘　　要：利用SBI对EPS、XPS和PIR-PU的燃烧行为进行研究,并利用傅里叶变换红外光谱仪对燃烧烟气中的主要毒性气体进行了分析。结果表明,虽然PIR-PU的热释放速率峰值和总热释放量均低于EPS和XPS,但其燃烧增长速率指数远高于EPS和XPS,表现出较强的潜在火灾热危险性;PIR-PU在受火初期即达到生烟速率峰值,XPS在受火时即产生浓烟,而EPS受火熔融直至熔滴物被引燃后才产生大量浓烟;对比燃烧烟气中毒害气体的分析结果,EPS产生的毒害气体主要为CO和CO2,XPS产生的毒害气体主要为CO、CO2和HBr,PIR-PU产生的毒害气体主要为CO、CO2和HCN。The combustion behavior of typical thermal insulation materials including expanded polystyrene foam （EPS）, extru- ded polystyrene foam （XPS） and polyisocyanurate polyurethane foam （PIR--PU） are investigated by single burning item test （SBI）, and the toxic gases in fire effluents are analyzed by on- line Fourier transform infrared. The results indicate that the peak value of heat release rate （PHRR） and total heat release value of PIR--PU is lower than that of EPS and XPS while fire growth rate index of PIR--PU is much higher than that of EPS and XPS, showing strong potential fire risk. The value of PIR --PU achieves peak quickly under fire, smoke yields while XPS under fire, and EPS generates a lot of smoke until the melting --droplets are ignited. The main toxic gases in fire effluents of EPS are CO and CO2, The main toxic gases in fire effluents of XPS are CO, CO2 and HBr. The main toxic gases in fire efflu- ents of PIR--PU are CO, CO~ and HCN.

关 键 词：有机外保温材料 单体燃烧试验 燃烧行为 毒害气体 

分 类 号：X924.4[环境科学与工程—安全科学] TK121[动力工程及工程热物理—工程热物理]