Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
High-Density Molded Cellulose Fibers and Transparent Biocomposites Based on Oriented Holocellulose
KTH Royal Institute of Technology, Sweden.
RISE - Research Institutes of Sweden, Bioeconomy, Biobased Materials.
KTH Royal Institute of Technology, Sweden.
2019 (English)In: ACS Applied Materials and Interfaces, ISSN 1944-8244, E-ISSN 1944-8252, Vol. 11, no 10, p. 10310-10319Article in journal (Refereed) Published
Abstract [en]

Ecofriendly materials based on well-preserved and nanostructured wood cellulose fibers are investigated for the purpose of load-bearing applications, where optical transmittance may be advantageous. Wood fibers are subjected to mild delignification, flow orientation, and hot-pressing to form an oriented material of low porosity. The biopolymer composition of the fibers is determined. Their morphology is studied by scanning electron microscopy, cellulose orientation is quantified by X-ray diffraction, and the effect of beating is investigated. Hot-pressed networks are impregnated by a methyl methacrylate monomer and polymerized to form thermoplastic wood fiber/poly(methyl methacrylate) biocomposites. Tensile tests are performed, as well as optical transmittance measurements. Structure-property relationships are discussed. High-density molded fibers from holocellulose have mechanical properties comparable with nanocellulose materials and are recyclable. The thermoplastic matrix biocomposites showed superior mechanical properties (Young's modulus of 20 GPa and ultimate strength of 310 MPa) at a fiber volume fraction of 52%, with high optical transmittance of 90%. The study presents a scalable approach for strong, stiff, and transparent molded fibers/biocomposites.

Place, publisher, year, edition, pages
2019. Vol. 11, no 10, p. 10310-10319
Keywords [en]
high strength, interface, modulus, nanocellulose, PMMA, wood, Cellulose, Delignification, Density (specific gravity), Elastic moduli, Esters, Hot pressing, Interfaces (materials), Natural fibers, Opacity, Reinforced plastics, Scanning electron microscopy, Tensile testing, Textile fibers, Wood products, Cellulose orientations, Eco-friendly materials, Methyl methacrylate monomer, Structure property relationships, Transmittance measurements, Mechanical properties
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-38218DOI: 10.1021/acsami.8b22134Scopus ID: 2-s2.0-85062458848OAI: oai:DiVA.org:ri-38218DiVA, id: diva2:1300757
Note

 Funding details: Wallenberg Wood Science Center; Funding details: Knut och Alice Wallenbergs Stiftelse; Funding text 1: We acknowledge funding from the Knut and Alice Wallenberg foundation through the Wallenberg Wood Science Center at the KTH Royal Institute of Technology. We thank Kerstin Slettengren (RISE) and Hui Chen for sample preparation and analysis.

Available from: 2019-03-29 Created: 2019-03-29 Last updated: 2019-03-29Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus
By organisation
Biobased Materials
In the same journal
ACS Applied Materials and Interfaces
Natural Sciences

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 5 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
v. 2.35.7