Optimization of Dry-Jet Wet Spinning of Regenerated Cellulose Fibers Using [mTBDH][OAc] as a Solvent

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dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorFang, Wenwenen_US
dc.contributor.authorLim, E Yeeen_US
dc.contributor.authorNieminen, Kaarloen_US
dc.contributor.authorSixta, Herberten_US
dc.contributor.departmentDepartment of Bioproducts and Biosystemsen
dc.contributor.groupauthorBiopolymer Chemistry and Engineeringen
dc.contributor.groupauthorBiorefineriesen
dc.date.accessioned2023-10-25T07:35:23Z
dc.date.available2023-10-25T07:35:23Z
dc.date.issued2023-09-19en_US
dc.descriptionThis project is funded by Academy of Finland Project WTF-Click-Nano 13311267. We express our gratitude for the provision of facilities and technical support by Aalto University at OtaNano–Nanomicroscopy Center (Aalto-NMC). In addition, we extend our thanks to Leena Pitkänen and Quang Lê Huy for their assistance with pulp analysis, as well as to Petri Uusi-Kyyny for discussions regarding the vapor–liquid equilibrium in the [mTBDH][OAc] and water system.
dc.description.abstractSuperbase-based ionic liquids (ILs) have demonstrated excellent dissolution capability for cellulose, and employing the dry-jet wet spinning process, high-tenacity regenerated textile fibers have been made. Among a range of superbase-based ILs, [mTBDH][OAc] exhibited not only good spinnability but also exceptional recyclability, making it highly suitable for a closed-loop production of regenerated cellulose fibers. To further optimize the spinning process, we investigated the influence of the cellulosic raw materials and the IL with residual water on spinnability and fiber properties. In addition, single-filament spinning and multifilament spinning using spinnerets with different hole densities were investigated to reveal the upscaling challenges of the dry-jet wet spinning process. The air gap conditions, for example, temperature and moisture concentration were simulated using COMSOL multiphysics. The results indicate that the presence of a small amount of water (3 wt%) in the IL has a positive effect on spinnability, while the mechanical properties of the fibers remain unchanged.en
dc.description.versionPeer revieweden
dc.format.extent34103–34110
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationFang, W, Lim, E Y, Nieminen, K & Sixta, H 2023, ' Optimization of Dry-Jet Wet Spinning of Regenerated Cellulose Fibers Using [mTBDH][OAc] as a Solvent ', ACS Omega, vol. 8, no. 37, pp. 34103–34110 . https://doi.org/10.1021/acsomega.3c05133en
dc.identifier.doi10.1021/acsomega.3c05133en_US
dc.identifier.issn2470-1343
dc.identifier.otherPURE UUID: 71f3c7e7-29d1-4a9a-83be-2e416b34f61fen_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/71f3c7e7-29d1-4a9a-83be-2e416b34f61fen_US
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dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/125309236/CHEM_Fang_et_al_Optimization_of_Dry-Jet_2023_ACS_Omega.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/124256
dc.identifier.urnURN:NBN:fi:aalto-202310256629
dc.language.isoenen
dc.publisherAmerican Chemical Society
dc.relation.ispartofseriesACS Omegaen
dc.relation.ispartofseriesVolume 8, issue 37en
dc.rightsopenAccessen
dc.titleOptimization of Dry-Jet Wet Spinning of Regenerated Cellulose Fibers Using [mTBDH][OAc] as a Solventen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion
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[article-cris] Kemian tekniikan korkeakoulu / CHEM