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Conference papers
Technological solutions to reduce the geometrical defects during the cast film process
Abstract : The polymer cast film process induces some geometrical defects : the width reduction (neck-in defect) and the inhomogeneous decrease of the thickness distribution (edge bead defect). These defects prevent from predicting the film final dimensions and thus from a high industrial productivity. In this paper, a numerical model developed by the authors is used to test and optimize two technological solutions, aimed at reducing the geometrical defects : a localized air cooling on the edges of the film at the die exit and an "encapsulation die" which enables the extrusion of a high melt strength polymer along the outer edge of a core polymer. Numerical results are confronted with experimental investigations
Cited literature [4 references]
https://hal-mines-paristech.archives-ouvertes.fr/hal-00851358
Contributor : Magalie Prudon Connect in order to contact the contributor
Submitted on : Tuesday, August 13, 2013 - 4:36:28 PM
Last modification on : Wednesday, November 17, 2021 - 12:28:16 PM
Long-term archiving on: : Friday, November 15, 2013 - 9:25:42 AM
Contributor : Magalie Prudon Connect in order to contact the contributor
Submitted on : Tuesday, August 13, 2013 - 4:36:28 PM
Last modification on : Wednesday, November 17, 2021 - 12:28:16 PM
Long-term archiving on: : Friday, November 15, 2013 - 9:25:42 AM
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G05-17.pdf
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