Experimental and Numerical Investigation for Simulation of Thermophysical Properties for Polypropylene 575 Polymer Melts in Single Screw Extruder. alkej [Internet]. 2018 Dec. 1 [cited 2024 Nov. 22];14(4):72-8. Available from: https://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/60