The Simulation Of Dispersive Performance Of The Intermeshing Co-Rotating Twin-Extruders

Intermeshing co-rotating twin-screw extruders are widely used for compounding and blending in polymer processing. Its screw is usually made in modular design. The screw is made of a variety of elements that slide over a common shaft, whereas the barrel is assembled from barrel elements bolted together. This allows the geometry of the machine to be altered depending on the requirement of the specific process, resulting in a large degree of flexibility. Among the main screw elements used in the co-rotating twin-screw extruders are the common screw elements and the kneading blocks that are served as conveying elements and mixing element respectively. To investigate the mixing efficiency of the common screw element, kneading blocks and the screw configuration composed of the two elements not only helps the designers to determine the configuration of the screw and the operating conditions, but also help to simplify the experiment and design the composition of the blends.In the present thesis Three-dimensional non-Newtonian isothermal...