Résumé
Tree bark is an abundant by-product of forestry, but its potential as a filler in thermoplastic composites remains largely unexplored. Incorporating bark powder into polymer matrices offers a sustainable alternative to conventional fillers, potentially reducing both the cost and the environmental impact of final product. However, the influence of bark particle size and shape on composite behavior is still poorly understood. This study investigates polypropylene (PP) composites loaded with bark particles from different tree species, with a particular focus on understanding the relationship between the filler morphology and the mechanical properties of the resulting biocomposites through a multi scale approach.