Adhesion in Polypropylene/Aluminum Laminates Made by Extrusion Coating

Samuel Devisme 1 Jean-Marc Haudin 1 Jean-François Agassant 1 Robert Combarieu 1 Damien Rauline 2 Fabrice Chopinez 2
1 CEMEF - Centre de Mise en Forme des Matériaux
2 CERDATO - Centre de recherche, développement, applications et technique de l'ouest
Abstract : The purpose of this article is to study how processing parameters can promote adhesion in grafted polypropylene/aluminum laminates made by extrusion coating. The density of bonds created at the interface is quantified by Xray spectroscopy after dissolution of the polymer film. dynamic mechanical analysis (DMA) and tensile tests are performed to characterize the mechanical properties of polymer films. They are linked with the crystalline structure, as revealed by optical microscopy and X-ray diffraction. A numerical model of extrusion coating is used to quantify the impact of cooling conditions on adhesion. A good correlation is found between the temperature history, the formation of bonds, and the mechanical properties of the polymer films. High temperature conditions can improve adhesion by increasing the open time for the reaction and the rate of the chemical reaction between grafted polymer chains and aluminum. (C) 2009 Wiley Periodicals, Inc. J Appl Polym Sci 112: 2609-2624, 2009
Keywords : polyolefins crystallization extrusion adhesion coatings
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https://hal-mines-paristech.archives-ouvertes.fr/hal-00435971
Contributeur : Nadine Alziary - Manuel <>
Soumis le : mercredi 25 novembre 2009 - 15:34:36
Dernière modification le : lundi 17 février 2020 - 17:40:30

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Samuel Devisme, Jean-Marc Haudin, Jean-François Agassant, Robert Combarieu, Damien Rauline, et al.. Adhesion in Polypropylene/Aluminum Laminates Made by Extrusion Coating. Journal of Applied Polymer Science, Wiley, 2009, 112 (5), pp.2609-2624. ⟨10.1002/app.29760⟩. ⟨hal-00435971⟩

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