木材种类与涂覆厚度对膨胀型防火涂料阻燃性能的影响  

Effect of Wood Species and Coating Thickness on Flame Retardancy of Intumescent Fire-retardant Coatings

作　　者：侯冠男 朱智超 郑兰芳 王霁 HOU Guannan;ZHU Zhichao;ZHENG Lanfang;WANG Ji(Fengtai Fire and Rescue Division,Beijing 100010,China;State Nuclear Zhanjiang Nuclear Power Company Ltd.,Zhanjiang,Guangdong Province 524000,China;School of Fire Protection Engineering,China People’s Police University,Langfang,Hebei Province China)

机构地区：[1]北京市丰台区消防救援支队,北京100010 [2]国核湛江核电有限公司,广东湛江524000 [3]中国人民警察大学防火工程学院,河北廊坊065000

出　　处：《中国人民警察大学学报》2024年第12期63-67,共5页Journal of China People's Police University

摘　　要：为研究木材种类与涂覆厚度对膨胀型防火涂料阻燃性能的影响,利用锥形量热仪对涂覆处理后的榆木、杉木、香樟木、松木、桐木的热释放速率及产烟速率等性能参数进行测量。研究发现:基材本身的理化性能会对燃烧阶段的烟和热释放产生影响,35 kW·m^(-2)辐射强度下,桐木试样的热稳定性最差,其余木材无明显区别;在涂覆厚度有限变化中,涂层越厚,阻燃隔热效果越好,5层涂覆处理工艺足以对所测试样提供有效保护,实际应用时具有最高性价比。In order to study the effects of wood species and coating thickness on the flame retardancy of intumescent fire-retardant coatings,a cone calorimeter was used to measure the heat release rate and smoke production rate of elm,fir,camphor,pine and paulownia wood after coating treatment.It was found that the physicochemical proper-ties of the substrate itself had an impact on the smoke and heat release during combustion.Under the radiation intensity of 35 kW·m^(-2),the thermal stability of the paulownia sample is the worst,with no significant difference between the other wood samples.With the limited variation of coating thickness,the thicker the coating,the better the flame retardant and thermal insulation effect.The five-layer coating treatment process is enough to provide effec-tive protection for the tested samples,and has the highest cost performance in practical application.

关 键 词：木材 涂覆厚度 膨胀型防火涂料 锥形量热仪 

分 类 号：TU998.1[建筑科学—市政工程]