Titre :

One step production from the monomer of poly(L-lactide)/flax biocomposites by thermoplastic resin transfer molding: mechanical properties and aging.

Auteur(s) :

Miranda Campos, Bernard [Auteur]
Beauvois, Jordan [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Fontaine, Gaelle [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Bourbigot, Serge [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Stoclet, Gregory [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Bonnet, Fanny [Auteur correspondant]
Unité Matériaux et Transformations (UMET) - UMR 8207

Titre de la revue :

Polymer Composites

Date de publication :

2024-07

Discipline(s) HAL :

Chimie/Matériaux
Chimie/Polymères

Résumé en anglais : [en]

Development of biocomposites is becoming a necessity due to environmental concerns. Polylactide is a matrix of choice, regarding its bio-sourced and compostable nature along with its mechanical properties. In this study, ...
Lire la suite >Development of biocomposites is becoming a necessity due to environmental concerns. Polylactide is a matrix of choice, regarding its bio-sourced and compostable nature along with its mechanical properties. In this study, poly(L-lactide)/flax biocomposites were produced using thermoplastic resin transfer molding (TP-RTM) in one step process from the monomer, affording sustainable and fully compostable composite materials. The polymerization of L-lactide (L-LA) monomer was promoted by tin octoate, affording poly(L-lactide) (PLLA) matrices displaying monomer conversions superior to 96 % and mass-average molar masses above 140,000 g/mol. Flax fibres were used as received without any functionalization which is usually conducted to prevent the hydroxyl groups to conduct side reactions. Mechanical testing revealed bending modulus of 9.3 GPa and bending strength of 177 MPa comparable to existing literature values for PLLA/flax composites produced by other techniques. Digital microscopy analysis provided insights into impregnation quality and void characterization within the composites. In addition, the durability of these biocomposites was also evaluated via accelerated aging tests.Lire moins >

Langue :

Anglais

Comité de lecture :

Oui

Audience :

Internationale

Vulgarisation :

Non

Autre(s) projet(s) ou source(s) de financement :

Région Hauts de France

Établissement(s) :

Université de Lille
CNRS
INRAE
ENSCL

Collections :

• Unité Matériaux et Transformations (UMET) - UMR 8207

Équipe(s) de recherche :

Ingénierie des Systèmes Polymères

Date de dépôt :

2024-07-03T09:27:01Z
2024-07-05T07:46:37Z
2024-07-05T07:51:47Z
2024-07-09T12:21:26Z
2024-07-10T07:12:22Z