关键词: fabric deformation heat discharge heat storage thermal hazards thermal protective clothing

Mesh : Humans Hot Temperature Protective Clothing Textiles Cold Temperature

来  源:   DOI:10.1080/10803548.2022.2108652

Abstract:
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.
摘要:
在热暴露中的职业工人具有频繁的身体活动,这可能导致热防护服的织物变形。为深入了解织物变形对其热防护和热危害双重性能的影响,用改进的实验仪器模拟织物不同程度的拉伸变形和压缩变形。结果表明,在暴露过程中增加拉伸比降低了织物系统内的热存储,但增加了皮肤吸收的能量。与双层织物体系相比,拉伸比对单层织物的热防护性能具有更大的负面影响。在冷却过程中增加拉伸比减少了向皮肤的热量排放,但是所施加的压缩显着改善了热量排放。此外,建立回归模型来检验织物变形的影响,并证明织物的热危害性能受压缩比受拉伸变形的影响更大。
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