膨胀型钢结构防火涂料膨胀炭质层的隔热作用  

Heat insulation effects of foamed cellar char resulting from intumescent fire resistive coatings for steel structures

作　　者：刘学军[1] 付若愚[2] 郭奋[1] 咸才军 郭保文 

机构地区：[1]北京化工大学教育部超重力工程研究中心,北京100029 [2]北京航空航天大学材料科学与工程学院,北京100083 [3]北京首创纳米科技有限公司,北京100094

出　　处：《北京化工大学学报（自然科学版）》2005年第1期16-20,共5页Journal of Beijing University of Chemical Technology(Natural Science Edition)

基　　金：国家863计划(2002AA302605)

摘　　要：文中通过对膨胀型钢结构防火涂料膨胀绝热过程的分析 ,导出了膨胀炭质层中的热量传递模型 ,探讨了炭质层结构和性能对耐火极限的影响规律 ,再与实验数据进行对比分析。The fire retardant and heat insulation processes of fire resistive coatings for steel structures were investigated, and a model of heat transfer from fire to steel was proposed. Compared with the experiment data,the effects of the structure and properties of foamed cellar char on the performance of the fire resistive coatings were discussed. It can be concluded that extending the reaction time of the cellar char and increasing the dense of the inorganic layers can prolong the fire proofing time of steel structure remarkably.

关 键 词：钢结构防火涂料 膨胀炭质层 隔热作用 数学模型 

分 类 号：TQ637.8[化学工程—精细化工]