Air gap spinning of a cellulose solution in [DBNH][OAc] ionic liquid with a novel vertically arranged spinning bath to simulate a closed loop operation in the Ioncell® process

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorGuizani, Chamseddine
dc.contributor.authorLarkiala, Sauli
dc.contributor.authorMoriam, Kaniz
dc.contributor.authorSawada, Daisuke
dc.contributor.authorElsayed, Sherif
dc.contributor.authorRantasalo, Sami
dc.contributor.authorHummel, Michael
dc.contributor.authorSixta, Herbert
dc.contributor.departmentDepartment of Bioproducts and Biosystems
dc.contributor.departmentBiorefineries
dc.date.accessioned2021-01-25T10:16:52Z
dc.date.available2021-01-25T10:16:52Z
dc.date.issued2021-02-05
dc.description.abstractA novel, small-volume vertically arranged spin bath was successfully developed for an air gap lyocell-type spinning process. A maximum regeneration bath length with a minimum free volume characterizes the concept of the new spin bath. Using the ionic liquid (IL) 1,5-diazabicyclo[4.3.0]non-5-enium acetate [DBNH][OAc], the spin bath showed very good spinning performances of IL-cellulose dopes at high draw ratios and spinning duration for single filament spinning experiments. Using this new device, it was possible to get a step further in the optimization of the Ioncell® process and simulate a process closed loop operation by performing single filament spinning in IL/H2O mixtures. Good dope spinnability and preserved fibers mechanical properties were achieved in a coagulation bath containing up to 30 wt% IL. It is only at 45 wt% of IL in the bath that the spinnability and fibers mechanical properties started to deteriorate. The fibers fibrillar structure was less pronounced in IL-containing spinning bath in comparison to a pure water bath. However, their crystallinity after washing was preserved regardless of the spinning bath composition. The results presented in this work have a high relevance to the upscaling of emerging IL-based cellulose dissolution and spinning processes.en
dc.description.versionPeer revieweden
dc.format.extent14
dc.format.mimetypeapplication/pdf
dc.identifier.citationGuizani , C , Larkiala , S , Moriam , K , Sawada , D , Elsayed , S , Rantasalo , S , Hummel , M & Sixta , H 2021 , ' Air gap spinning of a cellulose solution in [DBNH][OAc] ionic liquid with a novel vertically arranged spinning bath to simulate a closed loop operation in the Ioncell® process ' , Journal of Applied Polymer Science , vol. 138 , no. 5 , 49787 . https://doi.org/10.1002/app.49787en
dc.identifier.doi10.1002/app.49787
dc.identifier.issn0021-8995
dc.identifier.issn1097-4628
dc.identifier.otherPURE UUID: bdf4c04c-deed-416b-952f-fa55095153a1
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/bdf4c04c-deed-416b-952f-fa55095153a1
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85089725590&partnerID=8YFLogxK
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/54787890/app.49787.pdf
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/102241
dc.identifier.urnURN:NBN:fi:aalto-202101251551
dc.language.isoenen
dc.publisherWILEY-BLACKWELL
dc.relation.ispartofseriesJournal of Applied Polymer Scienceen
dc.relation.ispartofseriesVolume 138, issue 5en
dc.rightsopenAccessen
dc.subject.keywordbiopolymers
dc.subject.keywordfibers
dc.subject.keywordmicroscopy
dc.subject.keywordpolysaccharides
dc.subject.keywordrenewable polymers
dc.subject.keywordX-ray
dc.titleAir gap spinning of a cellulose solution in [DBNH][OAc] ionic liquid with a novel vertically arranged spinning bath to simulate a closed loop operation in the Ioncell® processen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion
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