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Novel Applications of Nanocellulose: Lightweight Sandwich Composites for Transportation
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.
University of Toronto.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.ORCID iD: 0000-0003-4762-2854
2015 (English)In: Reference module in materials science and materials engineering / [ed] Saleem Hashmi, Amsterdam: Elsevier, 2015Chapter in book (Refereed)
Abstract [en]

This chapter is focusing on improvement of the mechanical properties of bio-polyurethane (PU) foam by reinforcing the pre-resin with cellulose nanofibers (CNF). The prepared foam performance was evaluated by manufacturing lightweight sandwich panels using vacuum infusion process with CNF-reinforced bio-PU foam core. Cellulose fiber network (kraft paper) was used as a skin and epoxy resin was used as adhesive resin. The sandwich was tested and compared to a non-reinforced PU foam core sandwich in terms of compressive, flexural, and structural properties. The results showed that the CNF-reinforced foam resulted in sandwich panel with improved mechanical properties, and to foam with smaller cell size and lower open cell content. Moreover, the results were evaluated in a material selection process by means of minimizing merit indices. A trend in the behavior of compressive properties of the foam and flexural properties of the sandwich panels could be established. Overall, the results indicated that the mechanical properties of bio-PU foam was improved by reinforcing the pre-resin with small amounts of wet carrot CNF.

Ultimately, this work shows a positive trend suggesting CNF-reinforced bio-PU foam has a great potential for use in commercialized products or structural components in future constructions.

Place, publisher, year, edition, pages
Amsterdam: Elsevier, 2015.
National Category
Bio Materials
Research subject
Wood and Bionanocomposites
Identifiers
URN: urn:nbn:se:ltu:diva-63117DOI: 10.1016/B978-0-12-803581-8.10013-XISBN: 978-0-12-803581-8 (electronic)OAI: oai:DiVA.org:ltu-63117DiVA, id: diva2:1090310
Available from: 2017-04-24 Created: 2017-04-24 Last updated: 2018-01-12Bibliographically approved

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Sain, MohiniOksman, Kristiina

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
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