摘要
为探究玻璃纤维网对XPS材料火灾危险性的影响,利用热重仪测得材料XPS的热解特性参数,通过锥型量热仪获得XPS与常见3种孔径的玻纤网复合层的燃烧特性参数,采用层次分析法计算出与不同孔径玻纤网复合的保温层的火灾危险程度。实验结果表明:XPS材料从280℃开始热解,在425℃时达到最大热解速率;增加玻璃纤维网会促进XPS的燃烧反应,XPS复合的玻璃纤维网孔径越小,燃烧释放的热量与烟气量越高,火灾危险性越大。说明玻璃纤维网会加剧XPS保温材料的火灾危险,并且在建筑外墙保温设计时应减少或避免使用小孔径的玻璃纤维网。
In order to explore the influence of glass fiber mesh on the fire hazard of XPS material,the pyrolysis characteristic parameters of the material XPS were measured by the thermogravimetric instrument,and the combustion characteristic parameters of XPS and the common 3 pore size glass fiber mesh composite layers were obtained by cone calorimeter,and the fire hazard degree of the insulation layer composite with different pore size glass fiber mesh was calculated by analytic hierarchy process.Experimental results show that the XPS material starts pyrolysis from 280°C and reaches the maximum pyrolysis rate at 425°C;adding the glass fiber mesh will promote the combustion reaction of XPS,the smaller the pore size of the XPS composite glass fiber mesh,the higher the amount of heat and flue gas released by combustion,and the greater the fire hazard.It is explained that the glass fiber mesh will exacerbate the fire hazard of XPS insulation materials,and the use of small pore fiber mesh should be reduced or avoided in the design of building exterior wall insulation.
作者
程静
石必明
班鸿榆
CHENG Jing;SHI Bi-ming;BAN Hong-yu(School of Safety Science and Engineering,Anhui University of Science and Technology,Anhui Huainan 232001,China)
出处
《消防科学与技术》
CAS
北大核心
2022年第7期895-898,共4页
Fire Science and Technology
关键词
玻璃纤维网
XPS
热解特性
燃烧特性
层次分析法
火灾危险性
fiberglass mesh
XPS
pyrolysis
combustion characteristics
analytic hierarchy process
fire hazard
