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Fibers 2015, 3(1), 76-89; doi:10.3390/fib3010076

Novel Hybrid Flax Reinforced Supersap Composites in Automotive Applications

1
Centre of Automotive Technology, Cranfield University, Cranfield, MK43 0AL, UK
2
Valtion Teknillinen Tutkimuskeskus (V.T.T.), Sinitaival 6, FI-33101, Tampere, Finland
3
MahyTec, 210 avenue de Verdun, 39100 Dole, France
*
Author to whom correspondence should be addressed.
Academic Editor: Stephen C. Bondy
Received: 19 December 2014 / Revised: 16 February 2015 / Accepted: 9 March 2015 / Published: 19 March 2015
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Abstract

Flax fibre bio-epoxy composites have not found many commercial uses in structural applications on account of their lack of cost efficiency and high susceptibility to environmental changes. Non-woven flax mats were subjected to alkali, acetylation, silane and enzymatic treatment, and then combined with untreated unidirectional (UD) flax fabrics to make hybrid flax bio-epoxy composites. Mechanical and environmental resistance (aging) tests were performed on the treated flax fibres. The glass transition temperature was detected at about 75 °C with little effect of treatments. Untreated composites were found to have a tensile strength of 180 MPa while no significant improvement was observed for any of the treatments, which are also not environmentally friendly. The amiopropyltriethoxysilane (APS) composites after Xenon aging, retained the tensile strength of 175 MPa and a modulus of 11.5 GPa, while untreated composites showed 35% reduction in elastic modulus. View Full-Text
Keywords: hybrid flax; supersap bi-epoxy; mechanical properties; environmental resistance hybrid flax; supersap bi-epoxy; mechanical properties; environmental resistance
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Zhu, J.; Immonen, K.; Avril, C.; Brighton, J.; Zhu, H.; Abhyankar, H. Novel Hybrid Flax Reinforced Supersap Composites in Automotive Applications. Fibers 2015, 3, 76-89.

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