The effect of a paraffinic and a vegetable plasticizer on the mechanical and thermal
properties of sawdust reinforced toughened polypropylene (PP/EPDM/talc) was studied,
employing two different methods of plasticizer incorporation. The first method is based on
pre-mixing all components in a tumble mixer, extrusion in a co-rotational twin-screw extruder
and injection molding. In the second method the plasticizer was added in the injection
molding hopper, after extrusion of the other components. The addition of 10wt% paraffinic …