Comfort Performances of Permeable Chemical Protection Clothing in Hot Temperature Environment

摘要

Two permeable chemical protective clothing sets (clothing system 1 and clothing system 2) were tested in a hot temperature environment, in order to study the influence factors of clothing comfort. Methods: Using the sweating guarded hotplate and thermal manikin, two methods to measure are thermal resistance (Rct) and water-vapor resistance (Ret) values of the two clothing systems. Results: In sweating guarded hotplate test, clothing system 1 Rct_(11) is 14.51 × 10~(-3) m~2K/W and the Ret_(11) is 6.87 m~2Pa/W, clothing system 2 Rct_(21) is 22.62 × 10~(-3) m~2K/W and the Ret_(21) is 10.28 m~2Pa/W; in thermal manikin test, clothing system 1 Rct_(12) is 9.62 × 10~(-3) m~2K/W and the Ret_(12) is 5.08 m~2Pa/W, clothing system 2 Rct_(22) is 14.21 × 10~(-3) m~2K/W and the Ret_(22) is 8.36 m~2Pa/W. Conclusion: The air gap is the main factor which leads to the different results between two test methods. Optimization of chemical protective clothing structural design can effectively promote the clothing heat dissipation, which has a positive effect on the comfort and safety of chemical protective clothing.