Tutkimustuotoksia vuodessa
Tutkimustuotoksia vuodessa
F. Javanshour, K. R. Ramakrishnan, R. K. Layek, P. Laurikainen, A. Prapavesis, M. Kanerva, P. Kallio, A. W. Van Vuure, E. Sarlin
Tutkimustuotos: Artikkeli › Tieteellinen › vertaisarvioitu
The high stiffness and damping properties of flax fibres promote the integration of biocomposites in structural applications. However, the strength of flax/epoxy composites is still limited compared to glass/epoxy composites. Graphene oxide (GO) has proved to be a promising building block for nanocomposites due to its high toughness, stiffness and tunable interfacial interactions with polymers. This study aims to understand the potential of GO-based surface treatment of flax fibres to modify the interfacial adhesion and tensile performance of flax fibre/epoxy composites. GO-modification improves the interfacial shear strength of elementary flax fibre/epoxy by 43%. The interfacial improvement is also established by the 40% higher transverse bending strength compared to untreated flax/epoxy composites. The tensile moduli of GO-modified flax/epoxy composites are on average 2 GPa higher than for untreated flax fibre/epoxy composites in all strain ranges. The quasi-static longitudinal tensile strength of unidirectional composites is not affected by GO-modification.
Alkuperäiskieli | Englanti |
---|---|
Artikkeli | 106270 |
Sivumäärä | 9 |
Julkaisu | Composites Part A: Applied Science and Manufacturing |
Vuosikerta | 142 |
DOI - pysyväislinkit | |
Tila | Julkaistu - maalisk. 2021 |
OKM-julkaisutyyppi | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä |
Tutkimustuotos: Artikkeli › Tieteellinen › vertaisarvioitu
Vippola, M. (Manager), Honkanen, M. (Operator) & Salminen, T. (Operator)
Tekniikan ja luonnontieteiden tiedekuntaLaitteistot/tilat: Facility