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Article dans une revue
Effect of die surface on the onset of stick-slip transition in the flow of molten linear polymers
Abstract : We develop a relationship to describe the effect of surface roughness on the stick-slip transition for linear polymers. Using the Brochard-de Gennes slip model and including molecular chain dynamics at the wall, we develop an expression for the critical shear stress for the onset of wall slip as a function of the wettability of the polymer on the die surface or, more precisely, as a function of the apparent contact angle between polymer and die surface. The surface roughness can be also accounted for using additional parameters.
https://hal-mines-paristech.archives-ouvertes.fr/hal-00647830
Contributeur : Magalie Prudon <>
Soumis le : vendredi 2 décembre 2011 - 17:01:43
Dernière modification le : mercredi 14 octobre 2020 - 03:42:04
Contributeur : Magalie Prudon <>
Soumis le : vendredi 2 décembre 2011 - 17:01:43
Dernière modification le : mercredi 14 octobre 2020 - 03:42:04