Cellulose nanofiber/polyimide composites for highly-efficient air filters

Journal article


Authors/Editors


Strategic Research Themes


Publication Details

Author listYeganeh, Fariba; Chiewchan, Naphaporn; Chonkaew, Wunpen;

PublisherSpringer

Publication year2023

Volume number30

Issue number7

Start page4421

End page4436

Number of pages16

ISSN0969-0239

eISSN1572-882X

URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85150469151&doi=10.1007%2fs10570-023-05131-w&partnerID=40&md5=48951ba4cc849d79532cd6204a3d4e0a

LanguagesEnglish-Great Britain (EN-GB)


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Abstract

Cellulose nanofiber (CNF) nanopapers from garlic skin prepared by vacuum filtration were soaked in various concentrations of polyimide (PI) solution (0–15% w/v). The samples were dried in a vacuum oven and pressed in a hot pressing machine at 120 °C for 1 h to obtain CNF/PI composite nanopapers. Even though the composites showed lower Young’s modulus and tensile strength, their toughness and elongation were much higher than those of the CNF nanopapers. Moreover, the impregnation of nanopapers in PI solution caused the formation of smaller pores and limited the pore size distribution but increased the BET-specific surface area of the samples, which led to a superior filtration capacity and a high quality factor (QF). The composites prepared by impregnation with 5% wt PI showed the most promising composite to be developed as air filters, as these composites had flexibility and showed superior filtration (99%) efficiency and higher QF than the commercial filters. Graphical abstract: [Figure not available: see fulltext.] © 2023, The Author(s), under exclusive licence to Springer Nature B.V.


Keywords

Air filtersCNF-based compositeNanopapersPolyimide


Last updated on 2023-29-09 at 07:37