College of Textile and Clothing Engineering, Soochow University, China.
Ministry of Education, Donghua University, China.
Int J Occup Saf Ergon. 2023 Sep;29(3):1037-1046. doi: 10.1080/10803548.2022.2108652. Epub 2022 Sep 26.
Occupational workers in thermal exposure have frequent physical activities that may lead to fabric deformation of thermal protective clothing. To deeply understand the impact of fabric deformation on its dual thermal protective and thermal hazardous performance, a modified experimental instrument was used to simulate different extents of fabric tensile deformation and compression deformation. The results demonstrated that increasing tensile ratios during exposure decreased heat storage within a fabric system, but increased the skin absorbed energy. Tensile ratios had a more negative impact on the thermal protective performance of a single-layer fabric than of a double-layer fabric system. Increasing tensile ratios during cooling decreased heat discharge to the skin, but the applied compression significantly improved the heat discharge. In addition, regression models were established to examine the effect of fabric deformation and demonstrated that the thermal hazardous performance of fabrics was more affected by compression than by tensile deformation.
在热环境下工作的职业工人经常进行体力活动，这可能导致热防护服的织物变形。为了深入了解织物变形对其双重热防护和热危害性能的影响，使用改进的实验仪器模拟了不同程度的织物拉伸变形和压缩变形。结果表明，暴露过程中拉伸比的增加会降低织物系统内的蓄热量，但会增加皮肤吸收的能量。拉伸比对单层织物的热防护性能的负面影响大于对双层织物系统的影响。在冷却过程中增加拉伸比会减少向皮肤的热排放，但施加的压缩会显著改善热排放。此外，建立了回归模型来检验织物变形的影响，并表明织物的热危害性能受压缩的影响大于受拉伸变形的影响。
