消防员装备的未来:在模拟在岗暴露后评估含氟和无氟外壳。

IF 2.2 4区 工程技术 Q1 MATERIALS SCIENCE, TEXTILES
Nur-Us-Shafa Mazumder, Jingtian Lu, Andrew Stephen Hall, Arash Kasebi, Arjunsing Girase, Farzaneh Masoud, Jeffrey O Stull, R Bryan Ormond
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引用次数: 0

摘要

2022 年,消防职业被归类为 "1 类 "致癌物质,即已知对人类具有致癌性。结构性消防员所穿戴的个人防护装备旨在保护他们免受热、物理和化学危害,同时保持热生理舒适度。通常情况下,结构性消防装备的外层会使用一种基于全氟烷基和多氟烷基物质 (PFAS) 的耐用防水防油剂 (DWR),有助于限制与水和有害液体的接触。DWR 面漆中通常使用的基于 PFAS 的水性乳液具有很强的持久性,如果通过摄入、吸入和/或皮肤吸收进入人体,会引起各种健康问题。为此,美国消防部门已开始在消防员防护服中使用非 PFAS 防水剂。本研究旨在评估基于 PFAS 的传统外壳材料和替代性非 PFAS 外壳材料的性能。研究内容包括将消防员防护服复合材料中基于 PFAS 和非 PFAS 的 DWR 外层材料暴露于模拟工作环境(即风化、热暴露和洗涤)中,人为地使材料老化。曝晒后,对样品进行斥力、耐久性、热保护和表面化学分析评估,以确定可能存在的任何潜在性能权衡。结果发现,非 PFAS 外层织物不具有柴油/油的斥水性,如果在应急响应中暴露于柴油和随后的火焰中,会造成潜在的可燃性危险。基于 PFAS 和非 PFAS 的织物在热防护性能、抗撕裂强度和憎水性方面的表现相似。表面分析表明,PFAS 和非 PFAS 化学物质都会在老化过程中降解并从织物上脱落。研究表明,在过渡到非 PFAS 外罩材料时,应就潜在的性能权衡(如吸油性和易燃性问题)对消防员进行教育和培训。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Toward the future of firefighter gear: Assessing fluorinated and non-fluorinated outer shells following simulated on-the-job exposures.

In 2022, the occupation of firefighting was categorized as a "Group 1" carcinogen, meaning it is known to be carcinogenic to humans. The personal protective equipment that structural firefighters wear is designed to safeguard them from thermal, physical, and chemical hazards while maintaining thermo-physiological comfort. Typically, the outer layer of structural turnout gear is finished with a durable water and oil-repellent (DWR) based on per- and polyfluoroalkyl substances (PFAS) that helps limit exposure to water and hazardous liquids. The PFAS-based aqueous emulsion typically used in DWR finishes is highly persistent and can cause various health problems if absorbed into the body through ingestion, inhalation, and/or dermal absorption. In response, the U.S. Fire Service has begun using non-PFAS water repellants in firefighter turnout gear. This study aims to evaluate the performance of both traditional PFAS-based and alternative non-PFAS outer shell materials. The study involved exposing both PFAS-based and non-PFAS DWR outer shell materials in turnout composites to simulated job exposures (i.e., weathering, thermal exposure, and laundering) that artificially aged the materials. After exposures, samples were evaluated for repellency, durability, thermal protection, and surface chemistry analysis to determine any potential performance trade-offs that may exist. Non-PFAS outer shell fabrics were found not to be diesel/oil-repellent, posing a potential flammability hazard if exposed to diesel and subsequent flame on an emergency response. Both PFAS-based and non-PFAS sets of fabrics performed similarly in terms of thermal protective performance, tearing strength, and water repellency. The surface analysis suggests that both PFAS and non-PFAS chemistries can degrade and shed from fabrics during the aging process. The study indicates that firefighters should be educated and trained regarding the potential performance trade-offs, such as oil absorption and flammability concerns when transitioning to non-PFAS outer shell materials.

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来源期刊
Journal of Industrial Textiles
Journal of Industrial Textiles MATERIALS SCIENCE, TEXTILES-
CiteScore
5.30
自引率
18.80%
发文量
165
审稿时长
2.3 months
期刊介绍: The Journal of Industrial Textiles is the only peer reviewed journal devoted exclusively to technology, processing, methodology, modelling and applications in technical textiles, nonwovens, coated and laminated fabrics, textile composites and nanofibers.
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