Seawater ageing of infused flax fibre reinforced acrylic composites

Type Article
Date 2022-07
Language English
Author(s) Davies PeterORCID1, Arhant MaelORCID1, Grossmann Erwan2
Affiliation(s) 1 : Ifremer Centre Bretagne, Marine Structures Laboratory, 29280 Plouzané, France
2 : Kaïros, 1 Rue des Senneurs, 29900 Concarneau, France
Source Composites Part C: Open Access (2666-6820) (Elsevier BV), 2022-07 , Vol. 8 , P. 100246 (9p.)
DOI 10.1016/j.jcomc.2022.100246
WOS© Times Cited 11
Keyword(s) Acrylic composite, Flax fibre, Durability, Seawater ageing, Fatigue

This paper presents results from an experimental study of the mechanical behaviour of flax fibre reinforced acrylic composites after immersion in seawater. First, in-plane design data are presented. Then, seawater diffusion kinetics are shown, the influence of seawater on design properties is quantified and flexural fatigue performance is described. Finally the results are compared with those for glass reinforced composites. Seawater saturated specimens show a large drop in stiffness (>50%) due to fibre plasticization, but smaller drops in strength (<30%). The relevance of immersion tests is discussed and an alternative unifacial exposure test is recommended for these new materials for sustainable marine applications.

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