Modeling the Temperature Development of Wall-slipping Polymers in Single-screw Channels
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M. Kurte-Jardin
Abstract
Wall-slipping materials show lower melt temperature increase than wall-adhering materials on account of the reduced dissipated power component in the system, as is set out in Potente and Kurte-Jardin (2005) and Potente et al. (2005a). Up until now, however, there have not been any models for describing the development of the melt temperature in a single-screw channel when wall-slipping polymers are being processed. For this reason, a methodology of predicting the melt temperature is described. The new model is based on an existing analytical procedure that has been extended by numerical flow simulation results of isothermal 2,5D FE calculations. A comparison of the predicted mean melt temperatures with non-isothermal 3D FE flow simulation results leads to good agreement, what justifies further investigations.
References
Brochard, F., de Gennes, P. G., “Shear-Dependent Slippage at a Polymer/Solid Interface”, Langmuir8, 3033–3037(1992)10.1021/la00048a030Suche in Google Scholar
Hatzikiriakos, S. G., “A Slip Model for Linear Polymers based on Adhesive Failure”, Int. Polym. Proc., 8, 135–142(1993)Suche in Google Scholar
Kurte-Jardin, M., „Einfluss des Wandgleitens auf das Prozessverhalten wandgleitender Kunststoffe bei der Verarbeitung mit Einschneckenmaschinen“, Thesis University of Paderborn, Paderborn(2007)Suche in Google Scholar
Meijer, H. E. H., Verbraak, C. P. J. M.: “Modeling of Extrusion with Slip Boundary Conditions”, Polym. Eng. Sci., 28, 758–772(1988)10.1002/pen.760281108Suche in Google Scholar
Mitterfellner, H.: „Vergleich verschiedener Lösungen zur Analyse der Schmelzetemperaturentwicklung im Schneckenkanal von Einschneckenextrudern“, Thesis Diploma, University of Paderborn, Paderborn(1991)Suche in Google Scholar
Mooney, M., “Explicit Formulas for Slip and Fluidity”, J. Rheol., 2, 210–222(1931)10.1122/1.2116364Suche in Google Scholar
Pohl, T. C., „Entwicklung schnelldrehender Einschneckensysteme für die Kunststoffverarbeitung auf Basis theoretischer Grundlagenuntersuchungen“, Thesis University of Paderborn, Paderborn(2003)Suche in Google Scholar
Potente, H., et al., “Influence of Model Simplifications on the Accuracy of Simulation Results in Single Screw Extrusion”, Annual Meeting Polymer Processing Society, s-Hertogenbosch, Netherlands (1999)Suche in Google Scholar
Potente, H., et al., “Influence of Non-Newtonian Behaviour on the Processing Characteristics of Wall-slipping Materials”, Int. Polym. Proc.18, 115–121(2003)10.3139/217.1730Suche in Google Scholar
Potente, H., et al., “Modeling and Simulation of the Extrusion Process Chain”, Annual Meeting Polymer Processing Society, Leipzig, Germany (2005a)Suche in Google Scholar
Potente, H., et al., “Numerical Analysis on the Kinematic Reversal Conditions of Non-isothermal Flows in Single-Screw Extruders”, Annual Meeting Polymer Processing Society, Leipzig, Germany (2005b)Suche in Google Scholar
Potente, H., et al., “Two Dimensional Description of Pressure-Throughput Behaviour of Newtonian Materials Considering Wall Slippage Effects”, Int. Polym. Proc., 20, 312–321(2005c)10.3139/217.1893Suche in Google Scholar
Potente, H., et al., “Description of the Pressure/Throughput Behavior of a Single-screw Plasticating Unit in Consideration of Wall Slippage Effects for Non-Newtonian Material and 1-D flow”, Int. Polym. Proc., 21, 272–282(2006)Suche in Google Scholar
Potente, H., Kurte-Jardin, M., “Influence of Transverse Flow on the Flow Characteristics of Wall-Slipping Materials”, Annual Meeting Polymer Processing Society, Akron, Ohio, USA (2004)Suche in Google Scholar
Potente, H., Kurte-Jardin, M., “Non-isothermal Regard of the Pressure-/Throughput Behaviour of Non-Newtonian Materials in Consideration of Wall Slippage Effects (2D)”, Annual Meeting Polymer Processing Society, Leipzig, Germany (2005)10.3139/217.1893Suche in Google Scholar
Potente, H., Obermann, C., Screw Drive Power of Single Screw Plasticating Units with Smooth Barrels”, Int. Polym. Proc., 14, 21–27(1999)Suche in Google Scholar
Potente, H., Ridder, H., “Pressure/Throughput Behavior of a Single-screw Plasticising Unit in Consideration of Wall Slippage”, Int. Polym. Proc., 17, 102–107(2002)Suche in Google Scholar
Potente, H., WhiteJ. L.: Screw Extrusion, Hanser Publishers, Munich(2003)Suche in Google Scholar
Ramamurthy, J., “Wall Slip in Viscous Fluids and Influence of Materials of Construction”, J. Rheol., 30, 337–357(1986)10.1122/1.549852Suche in Google Scholar
Schofield, R. K., Scott Blair, G. W., “Relationship between Viscosity, Elasticity and Plastic Strength of Soft Materials as Illustrated by some Mechanical Tests”, Proc. Roy. Soc. A, 138, 707–718(1932)10.1098/rspa.1932.0211Suche in Google Scholar
Worth, R. A., et al., “Wall Slip and Its Implications in the Design of Single Screw Melt-fed Extruders”, Polym. Eng. Sci., 17, 257–265(1977)10.1002/pen.760170409Suche in Google Scholar
© 2009, Carl Hanser Verlag, Munich
Artikel in diesem Heft
- Contents
- Contents
- Regular Contributed Articles
- Modeling the Temperature Development of Wall-slipping Polymers in Single-screw Channels
- A Novel Dilatometer for PVT Measurements of Polymers at High Cooling – and Shear Rates
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- Predicting the Yield Stress of Polymer Glasses Directly from Processing Conditions: Application to Miscible Systems
- Numerical Simulation of a Thermoviscoelastic Frictional Problem with Application to the Hot-Embossing Process for Manufacturing of Microcomponents
- A Design to Study Flow Induced Crystallization in a Multipass Rheometer
- Modeling of Melt Conveying in a Novel Screw-Nested Extruder
- Rheological and Thermal Properties of a Model System for PIM
- PPS-News
- PPS News
- Seikei Kakou Abstracts
- Seikei-Kakou Abstracts
Artikel in diesem Heft
- Contents
- Contents
- Regular Contributed Articles
- Modeling the Temperature Development of Wall-slipping Polymers in Single-screw Channels
- A Novel Dilatometer for PVT Measurements of Polymers at High Cooling – and Shear Rates
- Analysis of Heat Transfer in PVC Profiles during the Extrusion Calibration/Cooling Step
- Study on the Bleeding Mechanism of Slip Agents in a Polypropylene Film using Molecular Dynamics
- A Direct 3D Numerical Simulation Code for Extrusion and Mixing Processes
- The Resarch for Asphalt Modified with Phosphorus Trichloride/SBS
- The Effect of Bead Vacuum on Slot Die Coating
- Predicting the Yield Stress of Polymer Glasses Directly from Processing Conditions: Application to Miscible Systems
- Numerical Simulation of a Thermoviscoelastic Frictional Problem with Application to the Hot-Embossing Process for Manufacturing of Microcomponents
- A Design to Study Flow Induced Crystallization in a Multipass Rheometer
- Modeling of Melt Conveying in a Novel Screw-Nested Extruder
- Rheological and Thermal Properties of a Model System for PIM
- PPS-News
- PPS News
- Seikei Kakou Abstracts
- Seikei-Kakou Abstracts