Development of model of polymer melt movement in extruder

Authors

  • Виталий Валерьевич Леваничев East-Ukrainian National University named after V. Dahl, Kv. Molodegnyi, 20а, Lugansk, Ukraine, 91034, Ukraine

DOI:

https://doi.org/10.15587/1729-4061.2015.51338

Keywords:

non-Newtonian fluid, extrusion, screw, flow model, melt friction

Abstract

The analysis of current approaches to the extrusion process intensification was performed. A model of the polymer melt movement in the metering zone of a single screw extruder, which suggests that the melt moves in the form of a "slug" was developed. The equations for calculating the metering zone, considering the near-wall viscosity (adhesion) of the melt to the surface of the screw and the cylinder, taking into account the total rheological curve of the melt flow were proposed. A comparative analysis with the classical extrusion equation of the Newtonian fluid was carried out. Identity conditions of models (shear and slug) for the slot channel were calculated. The advantages of the model of "slug" flow - a more general nature, the simplicity of perception, consideration of new process parameters were shown.

Increased melt friction on the extruder cylinder walls while reducing the friction on the screw allows to improve the performance of the metering zone of the extruder by 2.2 times.

Author Biography

Виталий Валерьевич Леваничев, East-Ukrainian National University named after V. Dahl, Kv. Molodegnyi, 20а, Lugansk, Ukraine, 91034

Candidate of Technical Sciences, docent Department of Systems Engineering

References

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Published

2015-10-24

How to Cite

Леваничев, В. В. (2015). Development of model of polymer melt movement in extruder. Eastern-European Journal of Enterprise Technologies, 5(5(77), 7–13. https://doi.org/10.15587/1729-4061.2015.51338

Issue

Vol. 5 No. 5(77) (2015): Applied physics. Materials Science

Section

Applied physics

License

Copyright (c) 2015 Виталий Валерьевич Леваничев

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