Title :

Continuous additive manufacturing of hemp yarn-reinforced biocomposites with improved impregnation method

Author(s) :

Ginoux, G. [Auteur]
Wu, X. K. [Auteur]
Laqraa, Chaimae [Auteur]
Génie des Matériaux Textiles - ULR 2461 [GEMTEX]
École nationale supérieure des arts et industries textiles [ENSAIT]
Soulat, Damien [Auteur]
Génie des Matériaux Textiles - ULR 2461 [GEMTEX]
Paux, J. [Auteur]
Ferreira, Manuela [Auteur]
Génie des Matériaux Textiles - ULR 2461 [GEMTEX]
Labanieh, Ahmad Rashed [Auteur]
Génie des Matériaux Textiles - ULR 2461 [GEMTEX]
École nationale supérieure des arts et industries textiles [ENSAIT]
Allaoui, S. [Auteur]

Journal title :

Composites Science and Technology

Abbreviated title :

Compos. Sci. Technol.

Volume number :

251

Pages :

-

Publication date :

2024-06-08

ISSN :

0266-3538

English keyword(s) :

A. polymer-matrix composites (PMCs)
A. Natural fiber composites
B. Mechanical properties
D. X-ray micro-computed tomography
E. Additive manufacturing

English abstract : [en]

This study was motivated by the development of new additively manufactured bio-based materials with high performance. Hemp yarn was used in continuous material extrusion additive manufacturing to produce novel hemp ...
Show more >This study was motivated by the development of new additively manufactured bio-based materials with high performance. Hemp yarn was used in continuous material extrusion additive manufacturing to produce novel hemp yarn-reinforced biocomposites. The hemp yarn was compared to an original hemp/poly(lactic acid) hybrid yarn prepared by commingling before printing as an improved impregnation method. In X-ray micro-computed tomography, the hybrid yarn-based biocomposite exhibited a higher impregnation rate accompanied by a reduced void content, more aligned fibers, and a more homogeneous distribution of the different constituents, resulting in significantly higher mechanical properties during tensile loading with a more brittle behavior compared to the additively manufactured biocomposite based on pure hemp yarn. In addition, superior mechanical performance was obtained while having lower fiber fraction with the use of hybrid yarns, raising awareness about the importance of improving the impregnation of the plant fibers as well as the fiber volume fraction. This original preparation method can provide bio-based materials with enhanced quality and performance, close to those obtained with conventional manufacturing techniques, while making the most of additive manufacturing for sustainable, lightweight, and high-end applications in health or aerospace.Show less >

Language :

Anglais

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

Université de Lille
ENSAIT
Junia HEI

Collections :

• Génie des matériaux textiles (GEMTEX) - ULR 2641

Submission date :

2024-09-05T21:01:39Z
2024-10-01T07:13:58Z