Industrial scrap of WPC profiles was collected for this study. The profiles for
floor and deck applications were extruded from PVC filled with 20 phr of wood
flour. The collected scrap consisted mainly of waste from the start-up process
and the profiles rejected during quality inspection. The scrap of PVC/wood flour
profiles was ground to sizes close to that of the freshfeed pellets, ranging from
about 3–5 mm. The experimental work on recycling wood plastic profiles of PVC/
wood flour composites consisted of two parts as detailed below.