Numerical investigation of the effect of screw geometry on the mixing of a viscous polymer melt | Zendy

Wang C. | Zendy; Bussmann M. | Zendy; Park C. B. | Zendy

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Numerical investigation of the effect of screw geometry on the mixing of a viscous polymer melt

Author(s) -

Wang C.,

Bussmann M.,

Park C. B.

Publication year - 2010

Publication title -

journal of applied polymer science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.575

H-Index - 166

eISSN - 1097-4628

pISSN - 0021-8995

DOI - 10.1002/app.31039

Subject(s) - plastics extrusion , mixing (physics) , extrusion , materials science , die (integrated circuit) , heat transfer , composite material , polymer , flow (mathematics) , extrusion moulding , mechanical engineering , mechanics , engineering , physics , nanotechnology , quantum mechanics

In polymer extrusion processing, mixing enhancement is an important consideration when an extruder screw is being designed. There are a variety of mixing elements used in the extrusion industry, with little consensus about what differentiates a good mixing section from a poor one. However, good mixing is important for homogenizing the material structure and temperature profile in the flow channel. This article presents a numerical analysis of the role of screw geometry in mixing in a cooling extruder. Four geometries, typical of those used by the extrusion industry, are assessed by the study of the polymer melt flow and heat transfer in the screw channels. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010

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