Comparison of Recycled ABS Composite Filaments Prepared by Different Blending Routes

This work reports the peak strength (PS)-based comparative analysis of composite filaments prepared with reinforcement of wood dust (WD), bakelite powder (BP), and Fe powder, respectively, through three different blending routes (mechanical, mechanical-hybrid (secondary (2°) recycling), and chemically assisted mechanical blending (tertiary (3°) recycling), by altering the twin-screw extruder (TSE) processing parameters for addressing issues related to recycling and self-assembly. Experimental results illustrated that the combination of blending route and processing parametric levels influences the filament porosity along with the bonding characteristics between the base matrix and reinforced material and thus affects the PS of composite filaments.