低辐射环境下形状记忆合金对防火面料隔热性能的影响

doi:10.13475/j.fzxb.20161006006

纺织学报 ›› 2017, Vol. 38 ›› Issue (08): 114-119.doi: 10.13475/j.fzxb.20161006006

低辐射环境下形状记忆合金对防火面料隔热性能的影响

收稿日期:2016-10-20 修回日期:2017-04-10 出版日期:2017-08-15 发布日期:2017-08-10

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

Received:2016-10-20 Revised:2017-04-10 Online:2017-08-15 Published:2017-08-10

摘要/Abstract

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。

关键词: 消防服, 形状记忆合金弹簧, 低辐射热, 隔热性能

Abstract:

To improve thermal protective performance of firefighters’ protective clothing, several shape memory alloy (SMA) springs were arranged between the moisture barrier laet and the thermal insulation inner layer to develop a smart flame resistant fabric combination 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.

Key words: firefighters' protective clothing, shape memory alloy spring, low radiation, thermal insulation performance

王帅卢业虎王丽君尤禅懿. 低辐射环境下形状记忆合金对防火面料隔热性能的影响[J]. 纺织学报, 2017, 38(08): 114-119.

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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

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