To improve thermal protection of protective clothing, temperature-responsive protective fabrics incorporated with shape memory alloy (SMA) springs varying on four different deformation heights and five types arrangement modes were designed. The thermal protection was investigated under radiant heat exposure of 0.39 cal/cm2 s. The results indicated that the air gap between fabric layers produced by SMA springs effectively improved protective performance. The thermal protection of fabrics with different SAM arrangement modes and sizes showed different trends, and the interaction effects of arrangement mode and size were analyzed. Moreover, the optimized arrangement and size of SMA springs were suggested. The regression models were established to assess the relationship between the air gap and thermal protection. This study demonstrated that the combination of flame-resistant fabric with SMA was feasible to develop temperature-responsive protective clothing because it could improve thermal insulating property by producing intelligent air gaps that responded to environment change.

中文翻译：

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掺入形状记忆合金（SMA）的温度响应防护布在辐射热暴露下的有效性

为提高防护服的热防护性能，设计了温度响应防护织物并结合形状记忆合金（SMA）弹簧，具有四种不同的变形高度和五种排列方式。在 0.39 cal/cm2 s 的辐射热暴露下研究了热保护。结果表明，SMA弹簧在织物层之间产生的气隙有效地提高了防护性能。不同SAM排列方式和尺寸的织物的热防护表现出不同的趋势，分析了排列方式和尺寸的交互作用。此外，还建议了 SMA 弹簧的优化布置和尺寸。建立回归模型以评估气隙与热保护之间的关系。