Influence of the amount and position of cellulose in plant stems on the behavior of plant stem reinforced-polymer composites

Lucie Chupin (1) , Thi To Loan Vo (1) , Erika Di Giuseppe (1) , Jordi Girones (1) , Sylvie Jaffuel , Jean-Luc Verdeil (2) , Anne Clément-Vidal (2) , Armelle Soutiras (2) , David Pot (2) , Denis Bastianelli (2) , Laurent Bonnal (2) , Emilie Gineau (3) , Grégory Mouille (3) , Stéphanie Arnoult (4) , Maryse Brancourt Brancourt-Hulmel (5) , Patrick Navard (1)

1 CEMEF - Centre de Mise en Forme des Matériaux
2 UMR AGAP - Amélioration génétique et adaptation des plantes méditerranéennes et tropicales
3 IJPB - Institut Jean-Pierre Bourgin
4 GCIE - Unité Expérimentale Grandes Cultures Innovation Environnement - Picardie
5 AgroImpact - Agroressources et Impacts environnementaux

Polymer composites prepared with a polymer matrix reinforced by elongated, broken fragments of plant stems can in some cases favorably compete with the same composite reinforced by glass fibers. However, the mechanical properties of the final composite are directly related to the properties of the stem fragments. Cellulose is the main polymer controlling the mechanical strength of these fragments. Two plants will be studied, miscanthus and sorghum. We will show that amount of cellulose in the stem fragments depends on the preparation methods of these fragments. We will report the correlations which exists between the amount of cellulose and its location within the different tissues of the stem and the mechanical properties of the final composite product.

Mots clés: Cellulose; Polymer composite

Domaines: Sciences de l'ingénieur [physics]; Matériaux

Lucie Chupin, Thi To Loan Vo, Erika Di Giuseppe, Jordi Girones, Sylvie Jaffuel, et al.. Influence of the amount and position of cellulose in plant stems on the behavior of plant stem reinforced-polymer composites. 7th Workshop on Cellulose, Regenerated Cellulose and Cellulose Derivatives, Nov 2016, Örnsköldsvik, Sweden. ⟨hal-01513561⟩