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BY-NC-ND 3.0 license Open Access Published by De Gruyter Open Access June 12, 2019

Viscoelastic Effects in Multilayer Polymer Extrusion

  • Patrick D. Anderson EMAIL logo , Joseph Dooley and Han E.H. Meijer
From the journal Applied Rheology

Abstract

The effect of viscoelasticity on multilayer polymer extrusion is discussed. In these coextrusion processes predetermined patterns are created with a remarkable breadth of complexity even in geometrically simple dies via elastic rearrangements caused by the second-normal stress differences. A computational method is offered, based on the mapping method, which quantitatively describes the flow-induced patterns. Besides that the results are esthetically beautiful, they are also relevant for practice, since process and die design optimization is now possible. Not only to minimize interface distortion, but potentially also to deliberately create new processes and products based on this flow-induced patterning of polymers.

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Received: 2006-02-25
Accepted: 2006-05-31
Published Online: 2019-06-12
Published in Print: 2006-08-01

© 2006 Patrick D. Anderson et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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