Aerosol filtration performance of nanofibrous mats produced via electrically assisted industrial-scale solution blowing,Polymer Engineering and Science

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Aerosol filtration performance of nanofibrous mats produced via electrically assisted industrial-scale solution blowing
Polymer Engineering and Science ( IF 3.2 ) Pub Date : 2021-08-18 , DOI: 10.1002/pen.25780
Melike Gungor _{1,

2} , Ali Toptas _{1,

3} , Mehmet Durmus Calisir _{1,

4} , Ali Kilic _{1,

2}

Affiliation

Highly efficient polyamide 6 (PA6)-based nanofibrous air filter media was developed for particulate matter (PM) removal in the ambient atmosphere. The PA6 nanofibrous mats exhibited 85% PM0.3 capture performance at a cost of 164 Pa pressure drop when the multiple-nozzle solution blowing system was set to 8 m/h fabric winding speed. However, an increase in the winding speed at a constant feeding rate lowered the filtration efficiency to 62% due to the less amount of nanofibrous mats collected on the substrate. The application of electrical field at the same parameters allowed us to produce a filter media having FFP3-level filtration performance, which means 99% PM0.3 capture performance. This was attributed to a fine fiber diameter (116 nm), higher solidity value (0.149), and lower average pore size (2.28 μm). These results show that the electrically assisted solution blowing provides a feasible route for the production of high-quality nanofibrous filter media.

中文翻译：

通过电辅助工业规模溶液吹制生产的纳米纤维垫的气溶胶过滤性能

开发了基于聚酰胺 6 (PA6) 的高效纳米纤维空气过滤介质，用于去除环境大气中的颗粒物 (PM)。当多喷嘴溶液吹气系统设置为 8 m/h 织物卷绕速度时，PA6 纳米纤维垫表现出 85% 的 PM0.3 捕获性能，但压降为 164 Pa。然而，由于收集在基材上的纳米纤维垫的数量较少，在恒定进料速率下增加缠绕速度会使过滤效率降低至 62%。在相同参数下应用电场使我们能够生产出具有 FFP3 级过滤性能的过滤介质，这意味着 99% 的 PM0.3 捕获性能。这归因于细纤维直径 (116 nm)、更高的密度值 (0.149) 和更低的平均孔径 (2.28 μm)。

更新日期：2021-10-01

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