New lignocellulosic fibres-reinforced composite materials: A stepforward in the valorisation of the Posidonia oceanica balls

In this work, new lignocellulosic particles obtained from Posidonia oceanica were studied to reinforce a commercial biodegradable thermoplastic matrix. First, these reinforcing fillers were characterised by Fourier-transform infrared (FT-IR) and X-ray photoelectron (XPS) spectroscopies. Then, they were used to prepare several composite films using BIOPLAST GF 106 matrix. Different P. oceanica fragment loadings, namely 0%, 10%, 20% and 30% (w/w with respect to the matrix) were investigated. The morphology of the ensuing materials was assessed by scanning electron microscopy (SEM), whereas their thermal and mechanical properties were studied by differential scanning calorimetry (DSC), dynamic mechanical analysis (DMA) and tensile tests. The obtained results showed that P. oceanica-based particles enhanced the thermo-mechanical properties of the thermoplastic matrix.