Alternative High-Performance Fibers for Nonwoven HEPA Filter Media

IF 1.6 4区环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES

Aerosol Science and Engineering Pub Date : 2022-10-18 DOI:10.1007/s41810-022-00161-6

Ivan P. Beckman, Gentry Berry, Heejin Cho, Guillermo Riveros

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引用次数: 5

Abstract

Continual research, development, and advancement in air filtration technology is important to abate the ever increasing health hazards of air pollution and global pandemics. The purpose of this review is to survey, categorize, and compare mechanical and thermal characteristics of fibers to assess their potential applicability in air filter media. The history of high-efficiency particulate air (HEPA) filter development explains how we arrived at the current state of the art nonwoven fibrous borosilicate glass filter paper. This review explores the history and practical uses of particular fiber types and explains fiber production methods in general terms. The thermal and mechanical properties of particular fibers are examined using the codes and standards produced by the American Society of Mechanical Engineers (ASME) to generalize the applicability of fiber categories for HEPA filter units within the nuclear air cleaning industry. This review discusses common measurements for specific strength and tenacity used by the textile and construction industries. Particular fibers are selectively compared for density, tensile strength, tensile stiffness, flexural rigidity, moisture regain, decomposition temperature, and thermal expansion. This review concludes with a subjective assessment of which types of fibers may be appropriate to study for HEPA filtration.

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用于无纺高效微粒空气过滤器介质的替代高性能纤维

空气过滤技术的持续研究、开发和进步对于减轻空气污染和全球流行病日益增加的健康危害至关重要。本综述的目的是调查、分类和比较纤维的机械和热特性，以评估其在空气过滤介质中的潜在适用性。高效微粒空气（HEPA）过滤器的发展历史解释了我们是如何获得目前最先进的无纺纤维硼硅酸盐玻璃滤纸的。这篇综述探讨了特定纤维类型的历史和实际用途，并概括解释了纤维生产方法。使用美国机械工程师协会（ASME）制定的规范和标准对特定纤维的热性能和机械性能进行了检查，以概括纤维类别在核空气清洁行业中用于高效空气过滤器的适用性。这篇综述讨论了纺织和建筑行业使用的比强度和韧度的常用测量方法。对特定纤维的密度、拉伸强度、拉伸刚度、弯曲刚度、回潮率、分解温度和热膨胀进行选择性比较。这篇综述的结论是对哪种类型的纤维可能适合用于HEPA过滤进行主观评估。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Aerosol Science and Engineering Environmental Science-Pollution

CiteScore

3.00

自引率

7.10%

发文量

期刊介绍： ASE is an international journal that publishes high-quality papers, communications, and discussion that advance aerosol science and engineering. Acceptable article forms include original research papers, review articles, letters, commentaries, news and views, research highlights, editorials, correspondence, and new-direction columns. ASE emphasizes the application of aerosol technology to both environmental and technical issues, and it provides a platform not only for basic research but also for industrial interests. We encourage scientists and researchers to submit papers that will advance our knowledge of aerosols and highlight new approaches for aerosol studies and new technologies for pollution control. ASE promotes cutting-edge studies of aerosol science and state-of-art instrumentation, but it is not limited to academic topics and instead aims to bridge the gap between basic science and industrial applications. ASE accepts papers covering a broad range of aerosol-related topics, including aerosol physical and chemical properties, composition, formation, transport and deposition, numerical simulation of air pollution incidents, chemical processes in the atmosphere, aerosol control technologies and industrial applications. In addition, ASE welcomes papers involving new and advanced methods and technologies that focus on aerosol pollution, sampling and analysis, including the invention and development of instrumentation, nanoparticle formation, nano technology, indoor and outdoor air quality monitoring, air pollution control, and air pollution remediation and feasibility assessments.