A1 Journal article (refereed), original research

Effect of graphene oxide surface treatment on the interfacial adhesion and the tensile performance of flax epoxy composites


Open Access hybrid publication

Publication Details
Authors: Javanshour F., Ramakrishnana KR., Layek R.K., Laurikainen P., Prapavesis A., Kanerva M., Kallio P., Van Vuure A.W., Sarlin E.
Publisher: Elsevier
Publication year: 2021
Language: English
Related Journal or Series Information: Composites Part A: Applied Science and Manufacturing
Volume number: 142
Start page: 106270
ISSN: 1359-835X
eISSN: 1878-5840
JUFO-Level of this publication: 2
Open Access: Open Access hybrid publication

Abstract

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.


Last updated on 2021-18-03 at 08:48