|Copyright||2011 A. Le Duigou et al.|
|Author(s)||Le Duigou A.1, Deux J. M.1, Davies Peter2, Baley C.1|
|Affiliation(s)||1 : LIMATB, Equipe Polymeres & Composites, Lab Ingn Mat Bretagne, F-56321 Lorient, France.
2 : IFREMER, Ctr Brest, Mat & Struct Grp, F-29280 Plouzane, France.
|Source||International Journal Of Polymer Science (1687-9422) (Hindawi Publishing Corporation), 2011 , N. 235805 , P. 1-8|
|WOS© Times Cited||1|
|Abstract||Biocomposites are sensitive to water, and previous work on flax reinforced PLLA showed a large drop in mechanical properties after immersion (Le Duigou et al. 2009). Unreinforced PLLA was much less sensitive. This paper presents a strategy to reduce the influence of wet ageing by adding extra layers of PLLA on the biocomposite surface. Weight gain measurements show that a PLLA coating 350 um thick reduces weight gain by half, and biocomposite stiffness and strength after ageing are improved by 100% compared to uncoated composite behaviour. Thermal analysis and microscopic examination are used to show damage mechanisms with and without protection. Property changes are shown to be quasilinearly related to weight gain.|
Le Duigou A., Deux J. M., Davies Peter, Baley C. (2011). Protection of Flax/PLLA Biocomposites from Seawater Ageing by External Layers of PLLA. International Journal Of Polymer Science, (235805), 1-8. Publisher's official version : http://doi.org/10.1155/2011/235805 , Open Access version : http://archimer.ifremer.fr/doc/00044/15511/