RETRACTED: Effect of PA6 Content on the Mechanical and Tribological Properties of Blending PA6 with PP (Retracted article. See vol. 29, pg. 3297, 2010)

Blending polypropylene (PP) with recycled polyamide-6 (PA6) industrial wastes at different compositions was produced in a corotating twin-screw extruder, where PP acts as the polymer matrix and polyamide as the dispersed phase. The mechanical and tribological properties of these blends were investigated. Results show that with the increasing filler content, the flexural strength and compressive strength of composites increase to the maximum and then decreases. When the filler mass fraction reaches 15%, the flexural strength and compressive strength of samples reach the maximum. The wear rate and the friction coefficient of PP decreased with the addition of PA6. The friction coefficients of PA6/PP composites are lower than those of PP. The main wear mechanisms are the plastic deformation and mechanical microploughing.