The Effect of Aligned Porous Nanofibers on Filter Efficiency and Pressure Drop

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dc.contributor.advisorCzekanski, Alex
dc.contributor.authorAli, Usman
dc.date.accessioned2025-04-10T10:36:28Z
dc.date.available2025-04-10T10:36:28Z
dc.date.copyright2023-12-06
dc.date.issued2025-04-10
dc.date.updated2025-04-10T10:36:28Z
dc.degree.disciplineMechanical Engineering
dc.degree.levelMaster's
dc.degree.nameMASc - Master of Applied Science
dc.description.abstractMasks, vital for submicron filtration, face a trade-off between enhanced when increasing filter efficiency and, an increased pressure drop, impacting user comfort during physical activities leading to difficulty breathing. Polycaprolactone (PCL) and Nylon masks electrospun with humidity control, was investigated. Optimal conditions emerged with a 10% PCL solution by weight in a chloroform and dimethylformamide mix (8:2 ratio), collected at 500 RPM, producing highly efficient aligned porous fibers. Conversely, Nylon failed to yield porous fibers under any tested combination of parameters. Our findings reveal a filtration efficiency range for porous aligned PCL fibers from 6% for 0.3 μm particles up to 42% at 5 μm, accompanied by a minimal pressure drop of 7 Pa. Introducing humidity proved effective in manufacturing porous nanofibers within a conventional electrospinning setup, offering promise for exploring diverse materials. The material’s distinct behavior suggests a broad avenue for the development of oriented multilayered mask application.
dc.identifier.urihttps://hdl.handle.net/10315/42702
dc.languageen
dc.rightsAuthor owns copyright, except where explicitly noted. Please contact the author directly with licensing requests.
dc.subject.keywordsNanofibers
dc.subject.keywordsFibers
dc.subject.keywordsFiber alignment
dc.subject.keywordsFiber morphology
dc.subject.keywordsFiltration
dc.subject.keywordsFilter efficiency
dc.subject.keywordsPressure drop
dc.titleThe Effect of Aligned Porous Nanofibers on Filter Efficiency and Pressure Drop
dc.typeElectronic Thesis or Dissertation

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