Abstract
Impact of Intensive Mixing and Shearing Elements on the Effectiveness of Extrusion of Wood Polypropylene Composites
Highlights
Polymer processing techniques are rapidly developing these days
Results were used to establish relationships between the extrusion process parameters, such as power supplied to the extruder, extrudate temperature, screw rotation speed, extrusion speed, mass flow rate, unit energy consumption, mass flow rate and Barus effect, as well as natural filler content and employed intensive mixing and shearing elements
The results demonstrate that the addition of the filler to the propylene and the use of different mixing and shearing elements affect thermal phenomena occurring in the conventional extrusion process
Summary
The extrusion and injection molding process plays a very important role in polymer processing and are the most widely used methods for processing polymers [1,2,3]. Technological conditions of the extrusion process and the design of the extruder plasticizing system play a key role in polymer extrusion, too. Research on the improvement of single-screw plasticizing systems predominantly focuses on new design solutions for the barrel and screw. This is due to the fact that these elements have a crucial impact on the flow rate of a polymeric material, energy consumption of the extrusion process, and the desired quality of the extrudate. Polymer mixing is a key operation in extrusion [3].
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