FN Archimer Export Format
PT J
TI Seawater ageing of flax/poly(lactic acid) biocomposites
BT 
AF LE DUIGOU, A.
   DAVIES, Peter
   BALEY, C.
AS 1:2;2:1;3:2;
FF 1:;2:PDG-DOP-DCB-ERT-MS;3:;
C1 IFREMER, Mat & Struct Grp, Ctr Brest, F-29280 Plouzane, France.
   Equipe Polymeres & Composites, LIMATB Lab Ingn Mat Bretagne, F-56321 Lorient, France.
C2 IFREMER, FRANCE
   UBS, FRANCE
SI BREST
SE PDG-DOP-DCB-ERT-MS
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-univ-france
IF 2.154
TC 152
UR https://archimer.ifremer.fr/doc/2009/publication-6639.pdf
LA English
DT Article
DE ;Mechanical properties;Hygrothermal ageing;Biopolymer;Natural fibre;Composites
AB Natural fibre reinforced biopolymer composites, or biocomposites, are an alternative to the glass fibre reinforced thermoset composites widely used today in marine applications. Biocomposites offer good mechanical properties and total biodegradability, but if they are to be adopted for marine structures their durability in a seawater environment must be demonstrated. In the present study unreinforced PLLA (Poly(L-Lactic acid)), injected and film stacked flax composites with the same PLLA matrix have been examined. All the samples were aged in natural seawater at different temperatures in order to accelerate hygrothermal ageing. Changes to physico-chemical and mechanical behaviour have been followed by weight measurements, thermal and gel permeation chromatography (GPC) analyses, and tensile testing, completed by acoustic emission recording and scanning electron microscopy (SEM) examination. The matrix tensile stiffness is hardly affected by seawater at temperatures to 40 degrees C but the composite loses stiffness and strength. Fibre/matrix interface weakening is the main damage mechanism induced by wet ageing, but both matrix and fibre cracks also appear at longer periods. (C) 2009 Elsevier Ltd. All rights reserved.
PY 2009
PD JUN
SO Polymer Degradation and Stability
SN 0141-3910
PU Elsevier
VL 94
IS 7
UT 000267815700016
BP 1151
EP 1162
DI 10.1016/j.polymdegradstab.2009.03.025
ID 6639
ER

EF