Electrospun polyvinyl butyral/berberine membranes for antibacterial air filtration

Autor: Mei Qin, Daqing Liu, Xin Meng, Zhang Dai, Shufang Zhu, Na Wang, Xu Yan
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Materials Letters: X, Vol 10, Iss , Pp 100074- (2021)
Druh dokumentu: article
ISSN: 2590-1508
DOI: 10.1016/j.mlblux.2021.100074
Popis: At the beginning of 2020, the whole world suffered from the new coronavirus (COVID-19). Wearing a mask was believed to reduce the spread of the virus. The core material of a mask required good air permeability and efficient filtration. Electrospun materials may match these requirements. By electrospinning, we prepared polyvinyl butyral (PVB)/berberine hydrochloride (BH) membranes onto the spunbonded nonwovens. The composite meshes showed porous structures, good air permeability (164 ± 16 mm/s) and air filtration efficiency 96.4% for PM 0.3, 100% for PM 2.5, with pressure drop (108 Pa). Moreover, with the addition of BH, the as-spun membranes showed good antibacterial property for staphylococcus aureus. Furthermore, the prepared PVB/berberine membranes had good hydrophobicity with water contact angle higher than 140°. These results indicated that the fabricated PVB/berberine membranes have potential applications in mask and air filtration.
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