مدل سازي فيزيكي جريان كامپوزيتهاي زمينه پليمري و الياف چوب در اكسترودر دوماردونه همسوگرد جهت تعيين كمترين طول المان مخلوط كننده

Physical Modeling of Mixing Phenomenon in Polymer/Wood-Fibers to Obtain Minimum Length of Mixing Zone in a Co-Rotating Twin Extruder

A physical modeling of mixing phenomenon for polymer/wood-fiber composites in twin extruder, is presented. An analytical method for obtaining length of mixing zone least-length is proposed. Experimental verification was conducted using a modeled twin-extruder with transparent polycarbonate cylinder and polyamide screws. Mixing phenomenon was visualized and photographed with various mixing zone lengths. Visual observations were shown to be in good agreement with the analytical results.