A Model of Polymer Melt Flow in Spiral Mandrel Dies

Author:

Mavridis Harry1

Affiliation:

1. Equistar Chemicals, LP, 11530 Northlake Drive, Cincinnati, OH 45249

Abstract

This work describes a model of polymer melt flow in spiral mandrel dies that attempts to account for the viscoelastic behavior of the polymer melt. The model is of the control-volume type currently available in the literature and includes simple, yet essential, modifications that improve the model predictions. The improved accuracy is demonstrated by comparison to three-dimensional calculations for Newtonian fluids and experimental results on LDPE blown films.

Publisher

SAGE Publications

Subject

Materials Chemistry,Polymers and Plastics,Mechanical Engineering,Mechanics of Materials,Ceramics and Composites

Reference8 articles.

1. An experimental evaluation of flow distribution models for spiral mandrel dies

2. 3. D. J. Coyle and J. Perdikoulias, SPE ANTEC Tech. Papers, 2445-2447 (1991).

3. 4. H. Mavridis. TAPPI PLC Conf. Proc., 657-666 (1997).

4. Correlation of low density polyethylene rheological measurements, with optical and processing properties

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1. Flow analysis of conical spiral mandrel dies;Journal of Plastic Film & Sheeting;2020-10-29

2. Thickness uniformity of HDPE blown film: Relation to rheological properties and density;Polymer Engineering and Science;2004

3. Flow Analyses in a Spiral Mandrel Die Assuming Wall Slip;International Polymer Processing;2003-12-01

4. Effect of wall slip on blown film thickness distribution;Polymer Engineering & Science;2003-11

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