Abstract

LMPAEK/CF laminates collected from scrap waste of Automated Fiber Placement (AFP) manufacturing were recycled obtaining different fiber sizes. The fraction with the smallest average particle size was mixed with different concentrations (5, 10, 20, 30% wt.) of PEKK (60:40). Blends processability was assessed by means of differential scanning calorimetry (DSC) and rotational rheology. Lastly, the mixture with 5%wt of carbon fiber content and PEKK was used for the filament manufacturing. This filament was printed in a robotized cell equipped with a 6-axis robotic arm using a printing head with a 0.8mm nozzle. The mechanical characterization of the printed samples revealed a significant improvement in the mechanical properties compared with neat PEKK or LM-PAEK.