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Conversion of wood-biopolymers into macrofibers with tunable surface energy via dry-jet wet-spinning

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Nypelö, Tiina
dc.contributor.author Asaadi, Shirin
dc.contributor.author Kneidinger, Günther
dc.contributor.author Sixta, Herbert
dc.contributor.author Konnerth, Johannes
dc.date.accessioned 2018-10-16T08:55:13Z
dc.date.available 2018-10-16T08:55:13Z
dc.date.issued 2018
dc.identifier.citation Nypelö , T , Asaadi , S , Kneidinger , G , Sixta , H & Konnerth , J 2018 , ' Conversion of wood-biopolymers into macrofibers with tunable surface energy via dry-jet wet-spinning ' , Cellulose , vol. 25 , no. 9 , pp. 5297–5307 . https://doi.org/10.1007/s10570-018-1902-4 en
dc.identifier.issn 0969-0239
dc.identifier.issn 1572-882X
dc.identifier.other PURE UUID: 7c22afa6-e00b-4476-8193-6818b328f317
dc.identifier.other PURE ITEMURL: https://research.aalto.fi/en/publications/7c22afa6-e00b-4476-8193-6818b328f317
dc.identifier.other PURE LINK: http://www.scopus.com/inward/record.url?scp=85048809738&partnerID=8YFLogxK
dc.identifier.other PURE FILEURL: https://research.aalto.fi/files/28401749/CHEM_Nypelo_et_al_Conversion_of_wood_biopolymers_2018_Cellulose.pdf
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/34292
dc.description HUOM! TÄHÄN PITÄÄ LISÄTÄ VIKA VERSIO KUN SE ON SAATAVILLA. NOTE! Insert the final version when available.
dc.description.abstract Abstract: Surface chemistry of regenerated all-wood-biopolymer fibers that are fine-tuned by composition of cellulose, lignin and xylan is elucidated via revealing their surface energy and adhesion. Xylan additive resulted in thin fibers and decreased surface energy of the fiber outer surfaces compared to the cellulose fibers, or when lignin was used as an additive. Lignin increased the water contact angle on the fiber surface and decreased adhesion force between the fiber cross section and a hydrophilic probe, confirming that lignin reduced fiber surface affinity to water. Lignin and xylan enabled fiber decoration with charged groups that could tune the adhesion force between the fiber and an AFM probe. The fibers swelled in water: the neat cellulose fiber cross section area increased 9.2%, the fibers with lignin as the main additive 9.1%, with xylan 6.8%, and the 3-component fibers 5.5%. This indicates that dimensional stability in elevated humidity is improved in the case of 3-component fiber compared to 2-component fibers. Xylan or lignin as an additive neither improved strength nor elongation at break. However, improved deformability was achieved when all the three components were incorporated into the fibers. Graphical Abstract: [Figure not available: see fulltext.] en
dc.format.extent 11
dc.format.extent 5297–5307
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation.ispartofseries Cellulose en
dc.relation.ispartofseries Volume 25, issue 9 en
dc.rights openAccess en
dc.title Conversion of wood-biopolymers into macrofibers with tunable surface energy via dry-jet wet-spinning en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Chalmers University of Technology
dc.contributor.department Department of Bioproducts and Biosystems
dc.contributor.department University of Natural Resources and Life Sciences, Vienna
dc.subject.keyword Adhesion force mapping
dc.subject.keyword Fiber surface energy
dc.subject.keyword Forest biomaterials
dc.subject.keyword Regenerated fibers
dc.subject.keyword Wood-biopolymers
dc.identifier.urn URN:NBN:fi:aalto-201810165369
dc.identifier.doi 10.1007/s10570-018-1902-4
dc.type.version publishedVersion

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