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Chemical modification of cellulose-rich fibres to clarify the influence of the chemical structure on the physical and mechanical properties of cellulose fibres and thereof made sheets
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology. KTH, School of Engineering Sciences (SCI), Centres, VinnExcellence Center BiMaC Innovation.
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology. KTH, School of Engineering Sciences (SCI), Centres, VinnExcellence Center BiMaC Innovation.ORCID iD: 0000-0002-7410-0333
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology. KTH, School of Engineering Sciences (SCI), Centres, VinnExcellence Center BiMaC Innovation.
2018 (English)In: Carbohydrate Polymers, ISSN 0144-8617, E-ISSN 1879-1344, Vol. 182, p. 1-7Article in journal (Refereed) Published
Abstract [en]

Despite the different chemical approaches used earlier to increase the ductility of fibre-based materials, it has not been possible to link the chemical modification to their mechanical performance. In this study, cellulose fibres have been modified by periodate oxidation, alone or followed either by borohydride reduction, reductive amination or chlorite oxidation. In addition, TEMPO oxidation, and TEMPO oxidation in combination with periodate oxidation and further reduction with sodium borohydride have also been studied. The objective was to gain understanding of the influence of different functional groups on the mechanical and structural properties of handsheets made from the modified fibres. It was found that the modifications studied improved the tensile strength of the fibres to different extents, but that only periodate oxidation followed by borohydride reduction provided more ductile fibre materials. Changes in density, water-holding capacity and mechanical performance were also quantified and all are dependent on the functional group introduced.

Place, publisher, year, edition, pages
Elsevier, 2018. Vol. 182, p. 1-7
Keyword [en]
Borohydride reduction, Cellulose fibres, Chemical modification, Chlorite oxidation, Periodate oxidation, Structure-property relationship, TEMPO oxidation
National Category
Polymer Technologies
Identifiers
URN: urn:nbn:se:kth:diva-218909DOI: 10.1016/j.carbpol.2017.11.006ISI: 000418661800001Scopus ID: 2-s2.0-85032914983OAI: oai:DiVA.org:kth-218909DiVA, id: diva2:1161795
Funder
VINNOVA
Note

QC 20171201

Available from: 2017-12-01 Created: 2017-12-01 Last updated: 2018-01-11Bibliographically approved

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Larsson, Per A.

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