湿热耦合作用对消防隔热防护服的影响

Study on the influence of humidity and heat coupling on the protective performance of protective clothing for proximity fire fighting

采用TG-DSC热分析仪分析消防隔热防护服各层面料热降解性能。模拟实际应用中外部和内部的湿热环境,研究湿热耦合作用对消防隔热防护服防护性能的影响。实验表明:单一外部和内部的湿热环境对隔热服防护性能的影响随着水分的增加都呈现先减小后增大的趋势。外部湿热环境和内部湿热环境共同作用下,内部湿热环境条件固定时隔热服防护性能随水分增加先增强后减弱,外部湿热环境条件固定时防护服防护性能随水分增加而增强。

Analysis of thermal degradation performance of various layers of fire protection clothing was carried out by TG-DSC thermal analyzer By simulating the wet and thermal environments inside and outside that clothing in practical applications, the effect of the coupling of humidity and heat on the fire protection clothing was studied. Experiments showed that the influence of only external or internal heat and humidity on the protective performance of fire protection clothing decreased firstly and then increased with the increase of moisture. Under the combined action of external and internal humid-thermal environments, the protective performance of thermal insulation clothing increases first and then decreases with the increase of moisture content;when the external humid and thermal environment conditions are fixed, the protective performance of protective clothing increases with the increase of moisture content.