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Exploring Large Ductility in Cellulose Nanopaper Combining High Toughness and Strength

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Chen, Feng
dc.contributor.author Xiang, Wenchao
dc.contributor.author Sawada, Daisuke
dc.contributor.author Bai, Long
dc.contributor.author Hummel, Michael
dc.contributor.author Sixta, Herbert
dc.contributor.author Budtova, Tatiana
dc.date.accessioned 2020-09-04T07:46:13Z
dc.date.available 2020-09-04T07:46:13Z
dc.date.issued 2020-09-22
dc.identifier.citation Chen , F , Xiang , W , Sawada , D , Bai , L , Hummel , M , Sixta , H & Budtova , T 2020 , ' Exploring Large Ductility in Cellulose Nanopaper Combining High Toughness and Strength ' , ACS Nano , vol. 14 , no. 9 , pp. 11150-11159 . https://doi.org/10.1021/acsnano.0c02302 en
dc.identifier.issn 1936-0851
dc.identifier.issn 1936-086X
dc.identifier.other PURE UUID: 8799d0ba-8c34-4563-8800-8eeb62390b8b
dc.identifier.other PURE ITEMURL: https://research.aalto.fi/en/publications/exploring-large-ductility-in-cellulose-nanopaper-combining-high-toughness-and-strength(8799d0ba-8c34-4563-8800-8eeb62390b8b).html
dc.identifier.other PURE LINK: http://www.scopus.com/inward/record.url?scp=85091560558&partnerID=8YFLogxK Scopus publication
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/46342
dc.description.abstract Cellulose nanopaper is a strong lightweight material made from renewable resources with a wide range of potential applications, from membranes to electronic displays. Most studies on nanopaper target high mechanical strength, which compromises ductility and toughness. Herein, we demonstrate the fabrication of highly ductile and tough cellulose nanopaper via mechanical fibrillation of hemicellulose-rich wood fibers and dispersion of the obtained cellulose nanofibrils (CNFs) in an ionic liquid (IL)–water mixture. This treatment allows hemicellulose swelling, which leads to dissociation of CNF bundles into highly disordered long flexible fibrils and the formation of a nanonetwork as supported by cryogenic transmission electron microscopy (cryo-TEM) imaging. Rheology of the suspensions shows a 300-fold increase in storage and loss moduli of CNF–IL–water suspensions, compared to their CNF–water counterparts. The nanopaper prepared by removing the IL–water shows a combination of large elongation (up to 35%), high strength (260 MPa), and toughness as high as 51 MJ/m3, because of efficient interfibrillar slippage and energy dissipation in the highly disordered isotropic structure. This work provides a nanostructure-engineered strategy of making ductile and tough cellulose nanopaper. en
dc.format.extent 10
dc.language.iso en en
dc.relation.ispartofseries ACS Nano en
dc.rights embargoedAccess en
dc.subject.other Materials Science(all) en
dc.subject.other Engineering(all) en
dc.subject.other Physics and Astronomy(all) en
dc.subject.other 216 Materials engineering en
dc.title Exploring Large Ductility in Cellulose Nanopaper Combining High Toughness and Strength en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Biorefineries
dc.contributor.department Bio-based Colloids and Materials
dc.contributor.department Biopolymer Chemistry and Engineering
dc.contributor.department Department of Bioproducts and Biosystems
dc.subject.keyword nanocellulose
dc.subject.keyword ioniq liquid
dc.subject.keyword hemicellulose
dc.subject.keyword viscoelastic properties
dc.subject.keyword ductile
dc.subject.keyword mechanical properties
dc.subject.keyword Materials Science(all)
dc.subject.keyword Engineering(all)
dc.subject.keyword Physics and Astronomy(all)
dc.subject.keyword 216 Materials engineering
dc.identifier.urn URN:NBN:fi:aalto-202009045285
dc.identifier.doi 10.1021/acsnano.0c02302
dc.date.embargo info:eu-repo/date/embargoEnd/2021-08-17

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