Computer Modeling for Single-Screw Extrusion of Wood–Plastic Composites
Experimental and theoretical studies have been performed on the single-screw extrusion of wood–plastics composites. Experimental research has been carried out on the flow and melting of polypropylene (PP)-based composites with different wood flour (WF) content in the single-screw extruder. Based on...
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doaj-e6539d0c0b9b422891f09caff28e2f412020-11-25T00:49:45ZengMDPI AGPolymers2073-43602018-03-0110329510.3390/polym10030295polym10030295Computer Modeling for Single-Screw Extrusion of Wood–Plastic CompositesKrzysztof Wilczyński0Kamila Buziak1Krzysztof J. Wilczyński2Adrian Lewandowski3Andrzej Nastaj4Polymer Processing Department, Faculty of Production Engineering, Warsaw University of Technology, 02-524 Warsaw, PolandPolymer Processing Department, Faculty of Production Engineering, Warsaw University of Technology, 02-524 Warsaw, PolandPolymer Processing Department, Faculty of Production Engineering, Warsaw University of Technology, 02-524 Warsaw, PolandPolymer Processing Department, Faculty of Production Engineering, Warsaw University of Technology, 02-524 Warsaw, PolandPolymer Processing Department, Faculty of Production Engineering, Warsaw University of Technology, 02-524 Warsaw, PolandExperimental and theoretical studies have been performed on the single-screw extrusion of wood–plastics composites. Experimental research has been carried out on the flow and melting of polypropylene (PP)-based composites with different wood flour (WF) content in the single-screw extruder. Based on these experimental observations, elementary models of the process phenomena have been proposed and a global model of the process has been developed. This global computer model includes the models of solid conveying, melting dependent on the wood flour content, melt flow in the screw, and melt flow in the die. 3-D non-Newtonian finite element method (FEM) screw pumping characteristics have been applied to model the melt flow in the metering section of the screw. The model predicts the extrusion output, pressure and temperature profiles, melting profile, and power consumption. The model has been validated experimentally. An effect of material slip on the extruder operation has been discussed including both slipping in the screw/barrel surfaces and in the extruding die.http://www.mdpi.com/2073-4360/10/3/295modelingextrusionwood–plastic composites |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Krzysztof Wilczyński Kamila Buziak Krzysztof J. Wilczyński Adrian Lewandowski Andrzej Nastaj |
spellingShingle |
Krzysztof Wilczyński Kamila Buziak Krzysztof J. Wilczyński Adrian Lewandowski Andrzej Nastaj Computer Modeling for Single-Screw Extrusion of Wood–Plastic Composites Polymers modeling extrusion wood–plastic composites |
author_facet |
Krzysztof Wilczyński Kamila Buziak Krzysztof J. Wilczyński Adrian Lewandowski Andrzej Nastaj |
author_sort |
Krzysztof Wilczyński |
title |
Computer Modeling for Single-Screw Extrusion of Wood–Plastic Composites |
title_short |
Computer Modeling for Single-Screw Extrusion of Wood–Plastic Composites |
title_full |
Computer Modeling for Single-Screw Extrusion of Wood–Plastic Composites |
title_fullStr |
Computer Modeling for Single-Screw Extrusion of Wood–Plastic Composites |
title_full_unstemmed |
Computer Modeling for Single-Screw Extrusion of Wood–Plastic Composites |
title_sort |
computer modeling for single-screw extrusion of wood–plastic composites |
publisher |
MDPI AG |
series |
Polymers |
issn |
2073-4360 |
publishDate |
2018-03-01 |
description |
Experimental and theoretical studies have been performed on the single-screw extrusion of wood–plastics composites. Experimental research has been carried out on the flow and melting of polypropylene (PP)-based composites with different wood flour (WF) content in the single-screw extruder. Based on these experimental observations, elementary models of the process phenomena have been proposed and a global model of the process has been developed. This global computer model includes the models of solid conveying, melting dependent on the wood flour content, melt flow in the screw, and melt flow in the die. 3-D non-Newtonian finite element method (FEM) screw pumping characteristics have been applied to model the melt flow in the metering section of the screw. The model predicts the extrusion output, pressure and temperature profiles, melting profile, and power consumption. The model has been validated experimentally. An effect of material slip on the extruder operation has been discussed including both slipping in the screw/barrel surfaces and in the extruding die. |
topic |
modeling extrusion wood–plastic composites |
url |
http://www.mdpi.com/2073-4360/10/3/295 |
work_keys_str_mv |
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