低辐射环境下形状记忆合金对防火面料隔热性能的影响  

Influence of shape memory alloy on thermal insulation performance of flame retardant fabrics in low radiation environment

作　　者：王帅[1] 卢业虎[1,2] 王丽君[1] 尤禅懿 

机构地区：[1]苏州大学纺织与服装工程学院,江苏苏州215006 [2]苏州大学现代丝绸国家工程实验室,江苏苏州215123

出　　处：《纺织学报》2017年第8期114-119,共6页Journal of Textile Research

基　　金：国家自然科学基金项目(51506137);江苏省自然科学基金项目(BK20161255);江苏省高等学校大学生创新创业训练计划项目(201610285117H);江苏省先进纺织工程技术中心开放课题项目(XJFZ-2016-5)

摘　　要：为提高消防服的热防护性能,将若干形状记忆合金弹簧设置在防护服的防水透气层与隔热层之间,研制出具有动态调节结构功能的智能防火面料组合。采用热防护性能测试仪模拟低辐射热环境,测量处于辐射暴露环境下的各面料层间的温度,从而基于层间温度的变化情况来评价不同排列方式下的形状记忆合金弹簧对防火面料的动态隔热作用。结果表明:形状记忆合金弹簧在辐射环境下弹起后产生的空气层具有良好的动态隔热作用,进而提高面料的热防护性能;采用不同的弹簧排列方式也可影响其隔热性能,其中1个弹簧正中排列及3个弹簧对角线放置的试样隔热效果最明显;在不同的排列方式下,弹簧产生的空气层形状和厚度具有明显差异,从而影响防火面料组合的隔热作用。To improve thermal protective performance of firefighters＇ protective clothing,several shape memory alloy（SMA） springs were arranged between the moisture barrier layer and the thermal insulation inner layer to develop smart flame retardant fabric combinations with a dynamic structure.A low radiant heat was simulated by a thermal protective performance tester and the surface temperatures between layers under exposure to low radiation were recorded.The protective performance of fabric in different arrangement modes of SMA springs was evaluated by the temperature changes between layers.The results indicated that SMA springs have good dynamic heat insulating properties by means of the air layer caused by the deformation of SMA springs under radiant heat,and thus improve the protective performance of fabrics.Meanwhile,the arrangement of SMA springs has impact on the thermal protection as well.The samples with the SMA arrangements of one spring in the center and three springs on the diagonal line exhibit better thermal protection performance.The shape and size of the air gap produced by different arrangements of SMA springs show obvious difference,and thus affect the thermal insulation properties of flame retardant fabric combinations.

关 键 词：消防服 形状记忆合金弹簧 低辐射热 隔热性能 

分 类 号：TS941.73[轻工技术与工程—服装设计与工程]