Large-Scale Centrifugal Multispinning Production of Polymer Micro- and Nanofibers for Mask Filter Application with a Potential of Cospinning Mixed Multicomponent Fibers

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Recently, the polymer nanofiber web is in high demand as a strong barrier against harmful particles due to its high capture efficiency and strong droplet-blocking ability. As an advanced spinning technique, the centrifugal multispinning system was designed by sectioning a rotating disk into triple subdisks, showing mass producibility of polymer nanofibers with cospinning ability. Using the system, gram-scale production of polystyrene (PS), poly(methyl methacrylate), and polyvinylpyrrolidone (PVP) was demonstrated, showing a possibility for versatile use of the system. Moreover, a high production rate of similar to 25 g/h for PS nanofibers was achieved, which is similar to 300x higher than that of the usual electrospinning process. Utilizing the cospinning ability, we controlled the contact angle and electrostatic charge of the multicomponent nanofiber web by adjusting the relative amounts of PS and PVP fibers, showing a potential for functional textile application. With the fabricated PS nanofiber-based filters, we achieved high capture efficiency up to similar to 97% with outstanding droplet-blocking ability.
Publisher
AMER CHEMICAL SOC
Issue Date
2021-03
Language
English
Article Type
Article
Citation

ACS MACRO LETTERS, v.10, no.3, pp.382 - 388

ISSN
2161-1653
DOI
10.1021/acsmacrolett.0c00829
URI
http://hdl.handle.net/10203/282689
Appears in Collection
CBE-Journal Papers(저널논문)
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