Exploring sheath-core yarns technology to optimise bio-composite performances

Exploring sheath-core yarns technology to optimise bio-composite performances

QUEREILHAC Delphine, FEMERY Jules, MOREL Guillaume, KORYCKI Adrian, DE LUYCKER Emmanuel, OUAGNE Pierre, CHABERT France

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Abstract. This work focuses on the design and fabrication of a continuous filament made of flax yarn and bio-based thermoplastic polymer. For this purpose, the sheath-core process has been explored by using an extrusion laboratory line equipped with a wire coating die to manufacture a flax core coated with PLA. The polymer properties were investigated (thermal transition, mechanical properties, melt viscosity) to link the polymer properties, the process and the properties of the resulting filament. The filament diameter decreases and surface defects appear when the pulling speed increases. The mechanical characterization of flax/PLA filaments demonstrates a higher elastic modulus, higher stress at break and lower strain at break as compared with pure PLA filaments. Such PLA coated flax filaments are a relevant option to widespread the use of biobased composites.

Flax, Biocomposite, Extrusion, Sheath-Core, 3D Printing

Published online 4/19/2023, 10 pages
Copyright © 2023 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: QUEREILHAC Delphine, FEMERY Jules, MOREL Guillaume, KORYCKI Adrian, DE LUYCKER Emmanuel, OUAGNE Pierre, CHABERT France, Exploring sheath-core yarns technology to optimise bio-composite performances, Materials Research Proceedings, Vol. 28, pp 1809-1818, 2023

DOI: https://doi.org/10.21741/9781644902479-196

The article was published as article 196 of the book Material Forming

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

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