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Article dans une revue
Modelling of the Plastisol Knife Over Roll Coating Process
Abstract : The knife-over-roll coating process of plastisol formulations for flooring applications has been investigated. The coexistence of smooth spherical PVC particles and rough calcium carbonate aggregates in a Newtonian plasticizer makes this suspension a more complex system than those encountered in the literature. The shear viscosity has been measured with Couette and capillary devices in the wide range of shear rates encountered in the process, resulting in a non-monotonous viscosity curve. A numerical model based on the lubrication approximation theory allows accounting for this non-monotonous behavior. It predicts the deposited thickness, the pressure field between roll and knife and the separating force as a function of the plastisol rheology and the coating parameters.
https://hal-mines-paristech.archives-ouvertes.fr/hal-01649127
Contributeur : Magalie Prudon <>
Soumis le : lundi 27 novembre 2017 - 11:37:24
Dernière modification le : jeudi 24 septembre 2020 - 17:22:58
Contributeur : Magalie Prudon <>
Soumis le : lundi 27 novembre 2017 - 11:37:24
Dernière modification le : jeudi 24 septembre 2020 - 17:22:58