화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korea-Australia Rheology Journal, Vol.28, No.3, 167-174, August, 2016
DOI10.1007/s13367-016-0016-5  Export Citation
Rheometry of polymer melts using processing machines
Walter Friesenbichler†, Andreas Neunhäuserer, and Ivica Duretek1
  • Department Polymer Engineering and Science, Institute of Injection Molding of Polymers, Montanuniversitaet Leoben, Leoben A-8700, Austria
  • 1Department Polymer Engineering and Science, Institute of Polymer Processing, Montanuniversitaet Leoben, Leoben A-8700, Austria, Australia
E-mail:
The technology of slit-die rheometry came into practice in the early 1960s. This technique enables engineers to measure the pressure drop very precisely along the slit die. Furthermore, slit-die rheometry widens up the measurable shear rate range and it is possible to characterize rheological properties of complicated materials such as wall slipping PVCs and high-filled compounds like long fiber reinforced thermoplastics and PIM-Feedstocks. With the use of slit-die systems in polymer processing machines e.g., Rauwendaal extrusion rheometer, by-pass extrusion rheometer, injection molding machine rheometers, new possibilities regarding rheological characterization of thermoplastics and elastomers at processing conditions near to practice opened up. Special slit-die systems allow the examination of the pressure-dependent viscosity and the characterization of cross-linking elastomers because of melt preparation and reachable shear rates comparable to typical processing conditions. As a result of the viscous dissipation in shear and elongational flows, when performing rheological measurements for high-viscous elastomers, temperature-correction of the apparent values has to be made. This technique was refined over the last years at Montanuniversitaet. Nowadays it is possible to characterize all sorts of rheological complicated polymeric materials under process-relevant conditions with viscosity values fully temperature corrected.
Keywords:applied rheometry;slit-die;temperature correction;pressure dependency;rubber compound
  1. Agassant JF, Avenas P, Sergent JP, Carreau PJ, 1991, Polymer Processing: Principles and Modelling, Hanser Gardner Publications, Cincinnati.
  2. Bagley EB, J. Appl. Phys., 28, 624 (1957)
  3. Brinkman HC, Appl. Sci. Res., A2, 120 (1951)
  4. Cox HW, Macosko CW, AIChE J., 20, 785 (1974)
  5. Daryanani R, Janeschitz-Kriegl H, van Donselaar R, van Dam J, Rheol. Acta, 12, 19 (1973)
  6. Duretek I, Friesenbichler W, 1994, Rheologische Messungen mit einem neuentwickelten Extrusionsrheometer, 13. Leobener Kunststoff Kolloquium - Aktuelle Forschungsarbeiten in den Bereichen Spritzgießen, Extrusion, Rheologie und Messtechnik, 1-28.
  7. Duretek I, Friesenbichler W, Schuschnigg S, Rajganesh J, 2006, Viskositatsmessungen bei extrem hohen Schergeschwindigkeiten unter Berucksichtigung von Schererwarmung und Druckeinfluss, 19. Leobener Kunststoff Kolloquium - Spritzgieß- und Extrusionstechnik-Innovationen aus Industrie und Forschung, 1-20.
  8. Eisenschitz R, Rabinowitsch B, Weissenberg K, 1929, Zur Analyse des Formanderungswiderstandes, Mitteilungen der deutschen Materialprufungsanstalten, Springer, Berlin, 91-94.
  9. Eswaran R, Janeschitz-Kriegl H, Schijf J, Rheol. Acta, 3, 83 (1963)
  10. Friesenbichler W, 1992, Ermittlung von rheologischen Kenndaten fur wandgleitende PVC-U Mischungen und ihre Anwendung fur Dusenberechnungen beim Extrudieren, Dissertation Thesis, Montanuniversitaet Leoben.
  11. Friesenbichler W, Langecker GR, Duretek I, Schuschnigg S, 2005, Polymer melt rheology at high shear rates using a new micro-rheology technique, 21th Polymer Processing Society Annual Meeting, Leipzig, Germany.
  12. Friesenbichler W, Duretek I, Rajganesh J, Kumar SR, Polimery, 56, 58 (2011)
  13. Friesenbichler W, Rajganesh J, Lucyshyn T, Filz P, Webelhaus K, 2010, Measurement of pressure dependent viscosity and its influence on injection molding simulation, 4th International PMI Conference, Ghent, Belgium, 215-219.
  14. Gornik C, Kunstst.-Plast Eur., 95(4), 88 (2005)
  15. Hay G, Mackay ME, Awati KM, Park Y, J. Rheol., 43(5), 1099 (1999)
  16. Holzer C, 1996, Messverfahren zur praxisnahen rheologischen Charakterisierung von Kautschuken, Dissertation Thesis, Montanuniversitaet Leoben.
  17. Holzer CH, Langecker GR, Kautsch. Gummi Kunstst., 50(9), 648 (1997)
  18. Knappe W, Krumbock E, Rheol. Acta, 25, 296 (1986)
  19. Krumbock E, 1984, Zum Wandgleiten von PVC-hart Mischungen im fließfahigen Zustand, Dissertation, Montanuniversitaet Leoben.
  20. Laun HM, Rheol. Acta, 22, 171 (1983)
  21. Laun HM, Rheol. Acta, 42(4), 295 (2003)
  22. Mitsoulis E, Perko L, Friesenbichler W, 2014, Capillary flow behavior of a rubber compound, Polymer Processing Society Regional Conference Europe-Africa, Tel Aviv, Israel.
  23. Mooney M, J. Rheol., 2, 210 (1931)
  24. Offermann H, 1972, Die Rheometrie wandgleitender Kunststoffschmelzen, untersucht am Beispiel von Hart-PVC, Dissertation Thesis, RWTH Aachen University.
  25. Perko L, Fasching M, Friesenbichler W, Polym. Eng. Sci., 55, 701 (2014)
  26. Rauwendaal C, Fernandez F, Polym. Eng. Sci., 25, 765 (1984)
  27. Schuschnigg S, 2004, Rheologische Untersuchungen bei hohen Schergeschwindigkeiten mit Hilfe eines Mikrorheologie-Schlitzdusen Messsystems, Master Thesis, Montanuniversitaet Leoben.
  28. Wales JLS, den Otter JL, Janeschitz-Kriegl H, Rheol. Acta, 4, 146 (1965)
  29. Winter HH, Adv. Heat Transf., 13, 205 (1977)