Rheological Modeling of Polymeric Melts in Extruders upon Two-Dimensional Shear Flow

H. Hosseini; V. Aseyev; B. V. Berdyshev; A. A. Borisov

doi:10.3139/217.3131

Article

Rheological Modeling of Polymeric Melts in Extruders upon Two-Dimensional Shear Flow

H. Hosseini , V. Aseyev , B. V. Berdyshev and A. A. Borisov

Published/Copyright: March 2, 2016

Published by

Become an author with De Gruyter Brill

Submit Manuscript Author Information

From the journal International Polymer Processing Volume 31 Issue 1

Abstract

The rheological modeling of a polymer melt in the course of its extrusion through a circular cylindrical channel inside a shaping die equipped with a rotating mandrel and a rotating or stationary nozzle is investigated. This paper attempts to provide a detailed rheological description of the physical processes of a polymer melt based on Leonov model inside the channel of an extruder under its kinematic deformation upon two-dimensional shear flow. Based on the obtained rheological equations of state, the flow process can be described in a form of dependencies reflecting kinematics of complex polymer deformation in the die channel. These expressions allow estimation of the velocity distribution for the flow elements within the channel as well as of the flow-pressure characteristics of the process. A quantitative relation between flow characteristics, rheological properties of polymer, and technical parameters of the channel of an extruder was determined. Comparison of this theoretical model with experimental results validates the suggested model.

*Correspondence address, Mail address: Hossein Hosseini, Laboratory of Polymer Chemistry, Department of Chemistry, A.I Virtasen aukio 1, P.O. Box 55, 00014 University of Helsinki, Finland. E-mail: hossein.hosseini@helsinki.fi

References

Baird, D. G., Collias, D. I.: Polymer Processing: Principles and Design, Butterworth-Heinemann, Boston (1995)Search in Google Scholar

Bashtannik, P. I., Ovcharenko, V. G., Dvornichenko, V. B. and Kabak, A. I., “Modeling Temperature Regimes in Producing Reinforced Thermoplasts by Screw-Disk Extrusion”, Mech. Compos. Mater., 30, 514–517 (1994) 10.1007/BF00616783Search in Google Scholar

Baši, H., Demirdži, I. and Muzaferija, S., “Finite Volume Method for Simulation of Extrusion Processes”, Int. J. Num. Meth. Eng., 62, 475–494 (2005) 10.1002/nme.1168Search in Google Scholar

Berdyshev, B. V., “Deformation Processes for Production of Hollow Polymeric Articles”, PhD Thesis, Moscow State University of Mechanical Engineering, Moscow (1999)Search in Google Scholar

Borisov, A., Berdyshev, B. V., Hosseini, H. and Shirkavand, B., “Rheological Modeling and Dynamic Characteristics of Disc Extruders”, Int. Polym. Proc., 26, 424–428 (2011) 10.3139/217.2453Search in Google Scholar

Campbell, G. A., Tang, Z., Wang, C. and Bullwinkel, M., “Some New Observations Regarding Melting in Single Screw Extruders”, SPE ANTEC Tech. Papers, 213–218 (2003)Search in Google Scholar

Chenoy, A. V., Saini, D. R.: Thermoplastic Melt Rheology and Processing, Marcel Dekker, New York (1996)10.1201/9781482295535Search in Google Scholar

Costa, L. C., Neto, A. T. and Hage, E., “PMMA/SAN and SAN/PBT Nanoblends Obtained by Blending Extrusion Using Thermodynamics and Microrheology Basis”, Exp. Polym. Lett., 8, 164–176 (2014) 10.3144/expresspolymlett.2014.20Search in Google Scholar

Gupta, M., Siegmund, F., Haberstroh, E., Rosenthal, M., Ivanov, D., Martin, W. M. F., Zhu, X. and Möller, M., “Preparation of Polyesteramides in a Reactive Extrusion Process”, Macromol. Mater. Eng., 299, 1343–1351 (2014) 10.1002/mame.201400091Search in Google Scholar

Hongyu, W., Xianghuai, D., Cunliang, Y. and Xueyu, R., “Three Dimension Profile Extrusion Simulation Using Meshfree Method”, Int. J. Adv. Manuf. Tech., 34, 270–276 (2007) 10.1007/s00170-006-0601-8Search in Google Scholar

Leonov, A. I., “Nonequilibrium Thermodynamics and Rheology of Viscoelastic Polymers Media”, Rheol. Acta, 15, 85–98 (1976) 10.1007/BF01517499Search in Google Scholar

Michaeli, W.: Extrusion Dies for Plastics and Rubber, Hanser Publishers, Munich (1992)Search in Google Scholar

Nie, M., Wang, Q. and Bai, S., “Morphology and Property of Polyethylene Pipe Extruded at the Low Mandrel Rotation”, Polym. Eng. Sci., 50, 1743–1750 (2010) 10.1002/pen.21700Search in Google Scholar

Rauwendaal, C.: Polymer Extrusion, Hanser Publishers, Munich (2014) 10.3139/9781569905395Search in Google Scholar

Srinivasa, R., Vaddiraju, M., Kostic, L., Reifschneider, A., Pla-Dalmau, V. and Ryka, A., “Extrusion Simulation and Experimental Validation to Optimize Precision Die Design”, SPE ANTEC Tech. Papers, 76–80 (2004)Search in Google Scholar

Worth, R. A., “Modification to Weld Lines in Extruded Thermoplastic Pipe Using a Rotating Die System”, Polym. Eng. Sci., 20, 551–554 (1980) 10.1002/pen.760200807Search in Google Scholar

Zolfaghari, A., Behravesh, E., Shakouri, H. and Soury, E., “An Innovative Method of Die Design and Evaluation of Flow Balance for Thermoplastics Extrusion Profiles”, Polym. Eng. Sci., 49, 1793–1799 (2009) 10.1002/pen.21421Search in Google Scholar

Received: 2015-06-13

Accepted: 2015-10-09

Published Online: 2016-03-02

Published in Print: 2016-03-02

You are currently not able to access this content.

Articles in the same Issue

https://doi.org/10.3139/217.3131