TY - JOUR T1 - Main criteria of sustainable natural fibre for efficient unidirectional biocomposites A1 - Bourmaud,Alain A1 - Mérotte,Justin A1 - Siniscalco,David A1 - Le Gall,Maelenn A1 - Gager,Victor A1 - Le Duigou,Antoine A1 - Pierre,Floran A1 - Behlouli,Karim A1 - Arnould,Olivier A1 - Beaugrand,Johnny A1 - Baley,Christophe AD - Univ. Bretagne Sud, UMR CNRS 6027, IRDL, 56100 Lorient, France AD - IFREMER Centre Bretagne, Marine Structures Laboratory, 29280 Plouzané, France AD - EcoTechnilin SAS, ZA Caux Multipôles, 76190 Valliquerville, France AD - LMGC, Université de Montpellier, CNRS, UMR 5508, Montpellier, France AD - UMR FARE, INRA, Université de Reims Champagne-Ardenne, 2 Esplanade Roland-Garros, 51100 Reims, France AD - UR1268 Biopolymères Interactions Assemblages, INRA, 44316 Nantes, France UR - https://doi.org/10.1016/j.compositesa.2019.105504 DO - 10.1016/j.compositesa.2019.105504 KW - Natural fibers KW - Biocomposite KW - Microstructures KW - Mechanical properties N2 - This paper investigates biochemical, morphological and mechanical properties of a large range of plant fibres explored with the same methods. Biochemical results clearly exhibit strong differences between gelatinous, i.e. flax and hemp, and xylan type, i.e. jute and kenaf, cell walls. These differences into parietal composition have an impact on cell wall stiffness, highlighted through nanoindentation and atomic force microscopy measurements, but also on fibre individualisation, due to variations into fibre bundles cohesion. In addition, the morphology and particularly the lumen size induces apparent density differences. Moreover, the influence of fibre morphology and properties is demonstrated on UD materials. Finally, longitudinal Young’s modulus of each plant fibre batches is back-calculated from UD stiffness by an inverse method; the results obtained are in accordance with the values in the literature values, proving the interest of this method to estimate longitudinal Young’s modulus of short plant fibres. Y1 - 2019/09 PB - Elsevier BV JF - Composites Part A-applied Science And Manufacturing SN - 1359-835X VL - 124 ID - 61621 ER -