Simulation of the Melt Conveying Zone of a Single-Screw Extruder for Mixed Polymer Materials Using an Isothermal Analytical Flat Plate Model Article Swipe
Emil Wagner
,
Christian Kneidinger
,
Christoph Burgstaller
,
Gernot Zitzenbacher
,
Emil Wagner
,
Christian Kneidinger
,
Christoph Burgstaller
,
Gernot Zitzenbacher
·
YOU?
·
· 2025
· Open Access
·
· DOI: https://doi.org/10.3390/polym17233145
YOU?
·
· 2025
· Open Access
·
· DOI: https://doi.org/10.3390/polym17233145
An optimized extrusion process is desired for both an environmentally friendly and economically sustainable recycling process. The aim of this study is to simulate the melt conveying zone of a single-screw extruder when using contaminated polymers instead of commonly used pure materials, to optimize a mechanical recycling process, and to reduce the number of measurements needed for rheological input data by using mixing rules. Polypropylene (PP) is blended with a polyamide 12 (PA 12) grade and another PP grade to introduce polymer impurities into the material. The blends are subjected to extrusion experiments in a lab-scale single-screw extruder with pressure and temperature sensors along the barrel. An isothermal analytical simulation model is proposed using representative shear rate values and rheological mixing rules to calculate the pressure distribution along the screw channel throughout the melt conveying zone. The rheological input data for the simulation is taken from high-pressure capillary rheometric measurements, but also substituted with values derived from mixing rules. The results show that the application of the shear viscosity through mixing models yields simulated pressure values similar to those measured in the experiments. With the introduction of representative viscosity into the model, relative deviations of around 5% at certain screw speeds can be achieved.
Related Topics
Concepts
Plastics extrusion
Materials science
Mixing (physics)
Rheology
Extrusion
Polypropylene
Composite material
Shear rate
Isothermal process
Viscosity
Polymer
Polyamide
Shear (geology)
Die (integrated circuit)
Mechanics
Capillary action
Flow (mathematics)
Shear flow
Reactive extrusion
Extrusion moulding
Polymer blend
Volumetric flow rate
Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.3390/polym17233145
- https://www.mdpi.com/2073-4360/17/23/3145/pdf?version=1764157617
- OA Status
- gold
- References
- 28
- OpenAlex ID
- https://openalex.org/W7106663012
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
-
https://openalex.org/W7106663012Canonical identifier for this work in OpenAlex
- DOI
-
https://doi.org/10.3390/polym17233145Digital Object Identifier
- Title
-
Simulation of the Melt Conveying Zone of a Single-Screw Extruder for Mixed Polymer Materials Using an Isothermal Analytical Flat Plate ModelWork title
- Type
-
articleOpenAlex work type
- Language
-
enPrimary language
- Publication year
-
2025Year of publication
- Publication date
-
2025-11-26Full publication date if available
- Authors
-
Emil Wagner, Christian Kneidinger, Christoph Burgstaller, Gernot Zitzenbacher, Emil Wagner, Christian Kneidinger, Christoph Burgstaller, Gernot ZitzenbacherList of authors in order
- Landing page
-
https://doi.org/10.3390/polym17233145Publisher landing page
- PDF URL
-
https://www.mdpi.com/2073-4360/17/23/3145/pdf?version=1764157617Direct link to full text PDF
- Open access
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YesWhether a free full text is available
- OA status
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goldOpen access status per OpenAlex
- OA URL
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https://www.mdpi.com/2073-4360/17/23/3145/pdf?version=1764157617Direct OA link when available
- Concepts
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Plastics extrusion, Materials science, Mixing (physics), Rheology, Extrusion, Polypropylene, Composite material, Shear rate, Isothermal process, Viscosity, Polymer, Polyamide, Shear (geology), Die (integrated circuit), Mechanics, Capillary action, Flow (mathematics), Shear flow, Reactive extrusion, Extrusion moulding, Polymer blend, Volumetric flow rateTop concepts (fields/topics) attached by OpenAlex
- Cited by
-
0Total citation count in OpenAlex
- References (count)
-
28Number of works referenced by this work
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