高辐射热下高性能纤维阻燃织物的热防护性能研究  

Study on the thermal protection performance of high⁃performance fiber flame retardant fabric under high radiation heat

作　　者：张希文 刘海 吕欢 郭晶 陈明辉 ZHANG Xiwen;LIU Hai;LU Huan;GUO Jing;CHEN Minghui(Shaanxi Yuanfeng New Material Technology Co.,Ltd.,Xi′an,Shaanxi 710038,China)

机构地区：[1]陕西元丰新材料科技有限公司,陕西西安710038

出　　处：《毛纺科技》2024年第11期14-19,共6页Wool Textile Journal

基　　金：陕西省重点研发计划项目(2024SF-YBXM-668);陕西省共性技术研发平台项目(2024ZG-GXPT-05)。

摘　　要：针对阻燃织物在高辐射热量暴露下热防护性能和力学性能均受到不同程度损失的问题,研究芳纶1313、芳纶1414、聚酰亚胺、聚对苯撑苯并二噁唑纤维单层及芳纶1313、芳纶1414、聚酰亚胺混配织造的双层织物的阻燃性能、热稳定性能、40 kW/m^(2)辐射热通量下的热防护性能及20 kW/m^(2)热通量作用后的断裂强力变化。结果表明,不同材料的单、双层织物均有较好的阻燃性能;芳纶1313织物在260℃下尺寸变化率5%左右,其他织物的尺寸变化率均在1.5%以内;在辐射热40 kW/m^(2)的热通量下,织物的辐射热防护性能与材料的耐温和织物结构有较大的关系,热分解温度较高的芳纶1414、PBO、聚酰亚胺材料经辐射热作用后的断裂强力损失率小于10%;当芳纶1313/聚酰亚胺/芳纶1414(20/30/50)双层织物接结纱间隔为1.2 cm×1.2 cm,且表里层密度配比达到1.6∶1时,具有较好的辐射热防护值。In view of the loss of thermal protection properties and mechanical properties of flame retardant fabrics exposed to high radiation heat exposure,the aramid 1313,aramid 1414,polyimide,polybenzene and dioxazole fiber sigle layer and aramid 1313,aramid1414,polybenzene and mixed weaving double-layer fabric of flame retardant performance,thermal stability performance,40 kW/m^(2) radiant heat flux and the fracture of 20 kW/m^(2) heat flux.The results show that the single and double-layer fabrics of different materials have good flame retardant performance;Aramid 1313 fabric size change rate about 5%at 260℃,the size change rate of the other fabrics is within 1.5%;Under the radiant heat flux of 40 kW/m^(2),the radiant heat protection performance of fabric has a great relationship with the material's temperature resistance and fabric structure.The breaking strength loss rate of aramid 1414,PBO and polyimide materials with higher thermal decomposition temperature is less than 10% after radiant heat action.When the interlace interval of the aramid 1313/polybenzene/aramid 1414(20/30/50)double-layer fabric is 1.2 cm×1.2 cm,and the density ratio of the outer layer and the inner layer reaches 16∶1,it has a better radiation heat protection value.

关 键 词：高性能纤维 织物组织结构 热防护性能 热稳定性能 阻燃性能 透气性能 

分 类 号：TS941.73[轻工技术与工程—服装设计与工程]