Flow characteristics of degraded polypropylene-co-ethylene kaolin composite extruded at different temperatures and extrusion cycles using single-screw extruder

Melt processing is challenging for recycling of mineral-filled polypropylene (PP) composites because the melt flow system, the viscoelasticity and the appearance of the extrudate profile change due to a combination of extensive shear forces and thermal-oxidative degradation. The flow pattern and the swelling behaviour of polypropylene-co-ethylene-kaolin (PP-co-E-kaolin) composite with 20% (by wt) kaolin and 5% (by wt) maleic...