Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • 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
A method for preparing epoxy-cellulose nanofiber composites with an oriented structure
Fibre and Particle Engineering Research Unit, Faculty of Technology, University of Oulu, Oulu, Finland.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science. Fibre and Particle Engineering Research Unit, Faculty of Technology, University of Oulu, Oulu, Finland.Mechanical & Industrial Engineering (MIE), University of Toronto, 5 King’s College Road, Toronto, ON, Canada.ORCID iD: 0000-0003-4762-2854
Fibre and Particle Engineering Research Unit, Faculty of Technology, University of Oulu, Oulu, Finland.
2019 (English)In: Composites. Part A, Applied science and manufacturing, ISSN 1359-835X, E-ISSN 1878-5840, Vol. 125, article id 105515Article in journal (Refereed) Published
Abstract [en]

A method was developed for processing cellulose nanocomposites using conventional vacuum infusion. Porouscellulose nanofiber networks were prepared via ice-templating and used as preforms for impregnation with a bioepoxyresin. Microscopy studies showed a unidirectionally oriented micrometer-scale pore structure that facilitatedthe infusion process by providing flow channels for the resin. The permeability of the preforms wascomparable to that of natural fiber mats, and the infusion time significantly decreased after optimizing theprocessing temperature. The flexural modulus of the bio-epoxy increased from 2.5 to 4.4 GPa, the strengthincreased from 89 to 107 MPa, and the storage modulus increased from 2.8 to 4.2 GPa with 13 vol% cellulosenanofibers. The mechanical properties also showed anisotropy, as the flexural and storage moduli were approximately25% higher in the longitudinal direction, indicating that the nanofiber network inside the epoxymatrix had an oriented nature.

Place, publisher, year, edition, pages
Elsevier, 2019. Vol. 125, article id 105515
Keywords [en]
Cellulose, Nanocomposites, Mechanical properties, Vacuum infusion
National Category
Engineering and Technology Bio Materials
Research subject
Wood and Bionanocomposites
Identifiers
URN: urn:nbn:se:ltu:diva-75412DOI: 10.1016/j.compositesa.2019.105515ISI: 000484878200001Scopus ID: 2-s2.0-85068541264OAI: oai:DiVA.org:ltu-75412DiVA, id: diva2:1340764
Note

Validerad;2019;Nivå 2;2019-08-13 (johcin)

Available from: 2019-08-06 Created: 2019-08-06 Last updated: 2019-09-27Bibliographically approved

Open Access in DiVA

fulltext(4608 kB)11 downloads
File information
File name FULLTEXT01.pdfFile size 4608 kBChecksum SHA-512
b27b7247d7a87145bacd46756b54bd0c6f38f06be6fb297753f0f691362998e992a37c7e6c8d3e3f1293f4c6f0137c0c98e83ef93100c79c07825cb3e255775e
Type fulltextMimetype application/pdf

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Oksman, Kristiina
By organisation
Material Science
In the same journal
Composites. Part A, Applied science and manufacturing
Engineering and TechnologyBio Materials

Search outside of DiVA

GoogleGoogle Scholar
Total: 11 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 52 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • 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