At the moment of the Green Deal and climate change, the industrial use of innovative and high-performance bio-based materials, pushed by societal pressure, must accelerate. The 3D printing of structural composite parts, biobased and/or degradable, and reinforced with high-performance plant fibres is fully in line with these industrial and societal expectations. In this context, through a completed knowledge of the extraction and transformation processes of flax fibres, as well as the mechanisms of creation of defects within these fibres, the FLOEME project aims to optimise the performance of biobased composites reinforced by flax fibres. Thus, the reinforcement properties of flax fibres in the form of dedicated yarns will be maximised in order to offer new and performing solutions to 3D printing processes; long-fibre products with optimised performance will thus be designed and developed. In order to fully exploit the mechanical potential of flax fibres, we propose to study in depth the quality of fibres, all along their transformation chain, from the field to the 3D printing factory, via the extraction processes by scutching/combing and transformation (from specific spinning to the elaboration of composites). Thus, the FLOEME project proposes an integrative approach to study and identify, using advanced investigation techniques (SHG, AFM, DRX, RMN), the defects generated mechanically in flax fibres throughout their life cycle, with the major objective of limiting the appearance of these fragile areas. Thus, FLOEME aims to enhance the efficiency of the technical flax industry by developing knowledge about the link between the emergence of defects and the key stages of the first (scutching) and second transformations (specific spinning for composite reinforcement). By optimising transformation processes, FLOEME will contribute to the development of innovative and efficient solutions such as long-fibre 3D printing to develop an innovative, environmentally responsible and competitive industry 4.0.
Madame Marwa Abida (Laboratoire d'étude des microstructures et de mécanique des matériaux)
The author of this summary is the project coordinator, who is responsible for the content of this summary. The ANR declines any responsibility as for its contents.
LEM3 Laboratoire d'étude des microstructures et de mécanique des matériaux
LGP LABORATOIRE GENIE DE PRODUCTION
CIMAP Centre de recherche sur les Ions, les MAtériaux et la Photonique
BIA Biopolymères, Interactions Assemblages
IRDL Institut de Recherche Dupuy de Lôme
VRF Van Robaeys Frères / Recherche et Développement
Help of the ANR 461,743 euros
Beginning and duration of the scientific project: September 2021 - 42 Months