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- Title
Filtration Efficiency Improvement of Air Filter Paper for Fine Particles by Electrospinning Technology.
- Authors
Weiyin Su; Lanfeng Hui; Xiaoyan Ma; Qian Yang; Wanhong Sun
- Abstract
Due to great advantages, such as simple operation, high porosity, and good fiber continuity, the working principle and research progress of electrospinning technology was studied and polyvinyl alcohol (PVOH) nanofibers were prepared via this process. Air filter paper was used as the receiving substrate to prepare electrospun nano air filter paper (NAFP). The PVOH concentration, static voltage, and receiving distance, were tested to explore the influence of spinning parameters on the filtration performance. Further, the microfiber morphology of the electrospun NAFP was observed. The performance of filter paper, including air permeability, pore size, initial resistance, filtration efficiency, and dust retention, were tested. The results showed that the electrospun NAFP had better filtration performance compared to the air filter paper, and simultaneously they had lower initial resistance and higher precision filtration efficiency. The nanofiber influenced the surface of the air filter paper, as it sharply reduced the pore size. When the spinning condition was 10%, 21 kV, and 15 cm, the pore size decreased approximately 0.6 times of the original, which meant the electrospun NAFP could capture particles = 0.2 µm in size. Finally, after three repeated uses, the good filtration performance was maintained.
- Subjects
NANOFIBERS; FILTER paper; AIR filters; PARTICULATE matter; ELECTROSPINNING; POLYVINYL alcohol
- Publication
BioResources, 2021, Vol 16, Issue 3, p5220
- ISSN
1930-2126
- Publication type
Article