Abstract In this research, we successfully fabricated a novel closed pore polyacrylonitrile (PAN)/polyvinyl pyrrolidone (PVP) composite nanofibrous membrane (PCNM) on the substrate of a commercial polypropylene window mesh. First, smooth and uniform PAN/PVP composite nanofibers (PCNs) were manufactured by blending PAN and PVP with a mass ratio of 5:5 during electrospinning. Subsequently, the prepared PCNs were hot pressed in a vacuum drying oven at a given temperature of 90°C. The morphology and filter efficiency of PCN and PCNM were investigated. It was found that hot-pressing treatment significantly affected the pore structure and orientation of PCNM, which contributed to its closed pore structure and good alignment. The filter efficiency results indicated that the hot-pressed PCNMs have excellent removal efficiency of up to 96.8% of fine particulate matter. This research demonstrates that PCNMs have potential as filters for indoor dust removal and will provide a new idea for the development of air filters.

中文翻译：

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具有高效PM2.5过滤器的静电纺聚丙烯腈/聚乙烯吡咯烷酮复合纳米纤维膜

摘要 在本研究中，我们成功地在商用聚丙烯窗网的基材上制备了一种新型闭孔聚丙烯腈（PAN）/聚乙烯吡咯烷酮（PVP）复合纳米纤维膜（PCNM）。首先，通过在静电纺丝过程中以 5:5 的质量比混合 PAN 和 PVP 来制造光滑均匀的 PAN/PVP 复合纳米纤维 (PCNs)。随后，将制备的 PCN 在真空干燥箱中在 90°C 的给定温度下进行热压。研究了 PCN 和 PCNM 的形态和过滤效率。发现热压处理显着影响PCNM的孔结构和取向，这有助于其封闭的孔结构和良好的排列。过滤效率结果表明，热压 PCNM 具有高达 96 的优异去除效率。8%的细颗粒物。该研究表明，PCNMs具有作为室内除尘过滤器的潜力，将为空气过滤器的发展提供新思路。