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Improvement of air permeability of Bubbfil nanofiber membrane

Wang Fei-Yan (Nantong University, School of Textile and Clothing, Nantong, China + Donghua University, College of Textiles, Songjiang District, Shanghai, China)
He Ji-Huan (Soochow University, College of Textile and Clothing Engineering, National Engineering Laboratory for Modern Silk, Suzhou, China)
Sun Qi-Long (School of Textile and Clothing, Nantong University, Nantong, China)
Yu Jin (School of Textile and Clothing, Nantong University, Nantong, China)

Nanofiber membranes always have extremely high filter efficiency and remarkably low pressure drop. In order to further improve air permeability of bubbfil nanofiber membranes, the plasma technology is used for surface treatment in this paper. The results show that plasma treatment can improve air permeability by 4.45%. Under higher power plasma treatment, earthworm like etchings are produced on the membrane surface with fractal dimensions of about 1.138.

Keywords: air permeability, nanofiber, bubbfil spinning, fractal dimension, melt-blown nonwoven fabric