Morphological and rheological study of TPS biocomposites blended in an original mixer based on elongational flows

Morphological and rheological study of TPS biocomposites blended in an original mixer based on elongational flows

Ragoubi, M. Terrié, C. Leblanc, N. 

Unité de Recherche agri'Terr-UniLaSalle Campus de Rouen, 3 rue du Tronquet, Mont Saint Aignan Cedex, 76 130, France

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This study describes the elaboration and characterization of plasticized starch composites based on lignocellulosic fibres. The transformation of native to plasticized starch and the preparation of TPS blends were done with a new lab-scale mixer based on an original concept. Firstly, the impact of process parameters (temperature, speed screw) on the quality and the structural properties of plasticized starch were examined by MEB and DRX. After that, we focused on the elaboration of various formulations based on plasticized starch matrix by varying TPS formulation, filler content and fibres length. The morphological and rheological properties of TPS/flax blends have been analyzed by TGA, MEB and DMTA. © Lavoisier 2016.


Extrusion, Lignocellulosic flax, Rheological and microstructural properties, RMX process, Starch biopolymer

Extended abstract
1. Introduction
2. Matériaux et procédure expérimentale
3. Résultats et discussion
4. Conclusion et perspectives

Les auteurs tiennent à remercier la région Normandie pour le soutien financier et Messieurs Nicolas Couvrat (Laboratoire SMS, université de Rouen), Sébastien Alix, Stéphane Buet (IFTS, Université de Reims) pour leurs apports techniques et scientifiques pour réaliser les analyses en DRX et DMA.


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