Valorisation de coproduits agricoles dans des panneaux composites biosourcés
Résumé
In the aim of agricultural byproduct valorization and wood resource preservation, composites particleboards have been elaborated from two agricultural residues: flax shives and sunflower bark. The particleboards have been processed by two different ways: with addition of classical synthetic glue (urea-formaldehyde) or without any extern binder. The boards show variable mechanical responses to the process (with or without glue) depending on their flax shives or sunflower bark proportions. The process and the binder used must be adapted to the type of agroresource used to perform these particleboards. All the studied composite materials show good thermal insulation properties. A 100 % biobased particleboard with good cohesion has been obtained from flax shives.