光湿复合老化对消防服用织物性能的影响

纺织学报 ›› 2015, Vol. 36 ›› Issue (09): 82-88.

光湿复合老化对消防服用织物性能的影响

收稿日期:2014-06-23 修回日期:2015-04-26 出版日期:2015-09-15 发布日期:2015-09-14

Effects of light and moisture on performance of fabrics for firefighter protective clothing

Received:2014-06-23 Revised:2015-04-26 Online:2015-09-15 Published:2015-09-14

摘要/Abstract

摘要：

为进一步探讨多种环境因素对消防服织物性能的影响，设计光湿复合老化实验，测试织物的表面色差、物理机械性能以及TPP值。结果表明：织物表面色彩随着光照时间的延长而加深；润湿程度越大，色差值也越大（P<0.05）。光照时间越长，织物的撕破强力越小（P<0.001），光照60 min后PBI织物的干强保持率最高，约65%，而国产芳纶的仅为50%左右，纬向干强已低于标准值；光老化对断裂强力影响不显著。随着润湿程度的增加，织物的机械强力显著减小（P<0.01），饱和润湿状态下撕破强力减小率最大为55.14%。织物经光湿复合老化后热防护性能反而变好。

Abstract:

For the purpose of studying the effects of complex environmental factors on performance of firefighter protective clothing, light and moisture aging experiment was designed and surface color difference, physical and mechanical properties and thermal protective performance were evaluated in laboratory tests. The results reveal that fabric color burns with increasing photoaging time, and color difference value increases with increasing wetting degree(P<0.05). The longer exposure to light, the lower tear strength the fabrics have (P<0.001). PBI fabric has the best retention of tear strength, about 65%, while domestic aramid fabric’s is about 50%, whose warp one is below standard after 60-minutes photoaging. The effect of photoaging on breaking strength is not significant. With the wetting degree increasing, physical strength of fabrics decrease significantly (P<0.001), and the maximum reduction ratio of tear strength among samples reaches 55.14% in the state of saturated wetting. However, both of photoaging and wetting treatments are beneficial to improve thermal protective performance.

马春杰崔志英 . 光湿复合老化对消防服用织物性能的影响[J]. 纺织学报, 2015, 36(09): 82-88.

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