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Dielectric barrier discharge plasma treatment of cellulose nanofibre surfaces
Department of Wind Energy, Section of Composites and Materials Mechanics, Technical University of Denmark, Roskilde.
Technical University of Denmark, Department of Wind Energy, Risø Campus.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.ORCID iD: 0000-0002-6247-5963
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.ORCID iD: 0000-0002-2388-3358
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2017 (English)In: Surface Engineering, ISSN 0267-0844, E-ISSN 1743-2944Article in journal (Refereed) Epub ahead of print
Abstract [en]

Dielectric barrier discharge plasma treatment was applied to modify cellulose nanofibre (CNF) surfaces with and without ultrasonic irradiation. The plasma treatment improved the wetting by deionised water and glycerol, and increased the contents of oxygen, carbonyl group, and carboxyl group on the nanofibre surface. Ultrasonic irradiation further enhanced the wetting and oxidation of the nanofibre coating. Scanning electron microscopic observations showed skeleton-like features on the plasma-treated surface, indicating preferential etching of weaker domains, such as low-molecular weight domains and amorphous phases. Ultrasonic irradiation also improved the uniformity of the treatment. Altogether, it is demonstrated that atmospheric pressure plasma treatment is a promising technique to modify the CNF surface before composite processing.

Place, publisher, year, edition, pages
Taylor & Francis, 2017.
National Category
Bio Materials
Research subject
Wood and Bionanocomposites
Identifiers
URN: urn:nbn:se:ltu:diva-63996DOI: 10.1080/02670844.2017.1334411OAI: oai:DiVA.org:ltu-63996DiVA: diva2:1109495
Available from: 2017-06-14 Created: 2017-06-14 Last updated: 2017-06-20

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Berglund, LinnAitomäki, YvonneOksman, Kristiina
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