开发用于便携式空气净化器的微粒过滤器,将熔喷和聚四氟乙烯相结合,以提高耐用性和性能

IF 4.3 2区 环境科学与生态学 Q1 CONSTRUCTION & BUILDING TECHNOLOGY
Indoor air Pub Date : 2024-04-24 DOI:10.1155/2024/5055615
Hyunjun Yun, Ji Hoon Seo, Jinho Yang
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引用次数: 0

摘要

通过使用空气净化器来改善室内空气质量已成为人们关注的焦点,重点是开发具有高效率、高保持能力和低压降的过滤器,以提高空气净化器的洁净空气输送率(CADR)。然而,虽然大多数研究都集中在开发滤料和评估其性能上,但很少有研究能实现褶式过滤器的应用。在这项研究中,我们结合聚四氟乙烯膜(PT)和熔喷(MB)材料(PM),新合成了扁平介质和褶式过滤器,并将其初始性能与其他空气净化器过滤器(MB、玻璃纤维和 PT)进行了比较。此外,我们还分析了装载颗粒后性能的变化情况。与其他过滤器相比,可吸入颗粒物过滤器的初始效率显示出更高的品质因数(QF)。此外,当装载更多颗粒时,可吸入颗粒物的穿透力没有变化。这些结果证明了 PM 的潜力。不过,由于初始压降的原因,MB 过滤器的 CADR 和亚微米级(0.02-0.113 μm)CADR(sCADR)最高。因此,在空气净化器中应用可吸入颗粒物还需要进一步改进。不过,研究结果表明,在必须使用高效微粒空气过滤器(HEPA)的医疗中心或有弱势群体的设施中,可吸入颗粒物可以作为空气净化器过滤器的新替代品。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Development of Particle Filters for Portable Air Purifiers by Combining Melt-Blown and Polytetrafluoroethylene to Improve Durability and Performance

Improving indoor air quality through the use of air purifiers has become a major focus, with emphasis on developing filters with high efficiency, high holding capacity, and low-pressure drop to improve the clean air delivery rate (CADR) for air purifiers. However, although most studies focused on developing media and evaluating their performance, few studies have reached the employment for a pleated filter. In this study, we newly synthesized flat media and pleated filters by combining polytetrafluoroethylene membrane (PT) and melt-blown (MB) materials (PM) and compared its initial performance to that of other air purifier filters (MB, glass fiber, and PT). Additionally, we analyzed how the performance changed after the particles were loaded. The initial efficiency of the PM filter showed a higher quality factor (QF) than the other filters. Furthermore, when more particles were loaded, the penetration of the PM did not change. These results demonstrate the potential of the PM. However, the CADR and submicron-sized (0.02–0.113 μm) CADR (sCADR) were highest for the MB filter due to the initial pressure drop. Therefore, additional improvements are required to apply the PM in air purifiers. However, the results suggest that the PM can be a new alternative for air purifier filters used in medical centers or facilities with vulnerable populations where a high-efficiency particle air (HEPA) filter must be used.

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来源期刊
Indoor air
Indoor air 环境科学-工程:环境
CiteScore
10.80
自引率
10.30%
发文量
175
审稿时长
3 months
期刊介绍: The quality of the environment within buildings is a topic of major importance for public health. Indoor Air provides a location for reporting original research results in the broad area defined by the indoor environment of non-industrial buildings. An international journal with multidisciplinary content, Indoor Air publishes papers reflecting the broad categories of interest in this field: health effects; thermal comfort; monitoring and modelling; source characterization; ventilation and other environmental control techniques. The research results present the basic information to allow designers, building owners, and operators to provide a healthy and comfortable environment for building occupants, as well as giving medical practitioners information on how to deal with illnesses related to the indoor environment.
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