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Lecturer(s)
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Zatloukal Martin, prof. Ing. Ph.D., DSc.
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Course content
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1. Rheology, tensor shear flow analysis. 2. Rheological characteristics for shear flow. 3. Tensor extensional flow analysis, rheological characteristics for extensional flow. 4. Flow analysis in simple flow domains, practical examples. 5. Flow analysis in complex flow domains, finite difference and finite element methods. 6. Extrusion principles, process modeling and optimization. 7. Effect of screw design on polymer extrusion. 8. Undesired phenomena during extrusion process, troubleshooting and practical examples. 9. Flat and profile dies, design optimization, flow modeling. 10. Annular extrusion dies, spiral mandrel and flat spiral dies, design optimization, flow modeling. 11. Coextrusion principles, undesired flow phenomena and troubleshooting, process modeling and optimization. 12. Thermoforming/blow molding, undesired flow phenomena and troubleshooting, process modeling and optimization. 13. Injection moulding, fountain and jetting flow analysis, process modeling and optimization. 14. Multicomponent/gas/water injection moulding, process modeling and optimization.
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Learning activities and teaching methods
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Lecturing, Dialogic (Discussion, conversation, brainstorming), Demonstration, Projection (static, dynamic), Exercises on PC, Practice exercises
- Preparation for examination
- 210 hours per semester
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| learning outcomes |
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| Knowledge |
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| The student understands rheological behaviour of polymer melts. |
| The student understands rheological behaviour of polymer melts. |
| The student identifies and quantifies the basic types of flows, including their characteristics. |
| The student identifies and quantifies the basic types of flows, including their characteristics. |
| The student will demonstrate knowledge of equations and their solution methods in the analysis of flow problems. |
| The student will demonstrate knowledge of equations and their solution methods in the analysis of flow problems. |
| The student will demonstrate knowledge of polymer transport mechanisms in the extrusion machine. |
| The student will demonstrate knowledge of polymer transport mechanisms in the extrusion machine. |
| The student will describe the mechanisms of flow instabilities during the processing of polymers and demonstrate knowledge of the criteria rules for their detection. |
| The student will describe the mechanisms of flow instabilities during the processing of polymers and demonstrate knowledge of the criteria rules for their detection. |
| The student will explain the principles of optimizing the design of extruders, extrusion dies and process conditions. |
| The student will explain the principles of optimizing the design of extruders, extrusion dies and process conditions. |
| Skills |
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| The student evaluates the rheological data from the measurements on the high-pressure capillary rheometer, identifies the parameters of the constitutive equations for their subsequent insertion into the material database of the simulation program. |
| The student evaluates the rheological data from the measurements on the high-pressure capillary rheometer, identifies the parameters of the constitutive equations for their subsequent insertion into the material database of the simulation program. |
| The student interprets rheological data in relation to the molecular structure of polymers. |
| The student interprets rheological data in relation to the molecular structure of polymers. |
| The student can define a geometric model, calculation grid and project within the simulation program. |
| The student can define a geometric model, calculation grid and project within the simulation program. |
| The student correctly interprets the calculated results and identifies flow instabilities. |
| The student correctly interprets the calculated results and identifies flow instabilities. |
| The student will propose the optimal design of extrusion machines and extrusion dies, including optimal process conditions for the given types of polymer materials. |
| The student will propose the optimal design of extrusion machines and extrusion dies, including optimal process conditions for the given types of polymer materials. |
| teaching methods |
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| Knowledge |
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| Dialogic (Discussion, conversation, brainstorming) |
| Dialogic (Discussion, conversation, brainstorming) |
| Demonstration |
| Demonstration |
| Projection (static, dynamic) |
| Projection (static, dynamic) |
| Lecturing |
| Lecturing |
| Skills |
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| Exercises on PC |
| Exercises on PC |
| Practice exercises |
| Practice exercises |
| assessment methods |
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| Knowledge |
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| Analysis of works made by the student (Technical products) |
| Oral examination |
| Oral examination |
| Analysis of works made by the student (Technical products) |
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Recommended literature
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AGASSANT, J.F., AVENAS, P., CARREAU, P., VERGNES, B., VINCENT, M. Polymer Processing: Principles and Modeling. 2nd Ed.. Munich: Hanser Publishers, 2017. ISBN 9781569906057.
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BAIRD, D.G., COLLIAS, D.I. Polymer Processing: Principles and Design. 2nd Ed.. Hoboken, New Jersey: Wiley. xv, 393 s., 2014. ISBN 9780470930588.
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DEALY, J.M., WANG, J. Melt Rheology and its Applications in the Plastics Industry. 2nd Ed.. Dordrecht: Springer. xvi, 282 s. Engineering Materials and Processes., 2013. ISBN 9789400763944.
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VLACHOPOULOS, J., POLYCHRONOPOULOS, N.D. Understanding Rheology and Technology of Polymer Extrusion. 1st Ed.. Dundas: Polydynamics, 2019. ISBN 9780995240735.
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VLČEK, J., MAŇAS, M. Aplikovaná reologie. 1. vyd.. Zlín: UTB, 2001. ISBN 8073180391.
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WEIN, O. Úvod do reologie. Brno, 1996. ISBN 8023809288.
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XIAO, K., ZATLOUKAL, M. Multilayer Die Design and Film Structures. In: KANAI, T., CAMPBELL, G.A. (Eds.) Film Processing Advances. Munich: Hanser, 2014. ISBN 9781569905296.
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