Influence of reversion on adhesion in the rubber-to-metal vulcanization-bonding process |
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| Institution: | 1. LUNAM Université, IUT de Nantes, CNRS, GEPEA, UMR 6144, 2, avenue du Professeur Jean Rouxel, BP 539, 44475 Carquefou Cedex, France;2. LUNAM Université, CNRS, GEPEA, UMR 6144, CRTT, 37, boulevard de l''Université, 44606 St Nazaire Cedex, France;1. Università di Palermo, Dipartimento di Ingegneria Civile, Ambientale, Aerospaziale, dei Materiali, Viale delle Scienze, 90128 Palermo, Italy;2. Università degli Studi di Enna “Kore”, Facoltà di Ingegneria e Architettura, Cittadella Universitaria, 94100 Enna, Italy;1. FEI University, Brazil;2. UFSCar, Brazil;1. Department of Chemistry, Faculty of Chemistry and Chemical Engineering, Babe?-Bolyai University, Cluj-Napoca, Romania;2. Department of Chemistry and Center for Computational Quantum Chemistry, University of Georgia, Athens, GA 30602, USA;1. Composite Construction Laboratory (CCLab), Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland;2. ISISE/IB-S, Department of Civil Engineering, University of Minho, 4800-058 Guimarães, Portugal |
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| Abstract: | The vulcanization bonding process is used in a growing number of industrial applications where rubber-to-metal bonded assemblies are needed. The complexity of this process lies in the fact that the vulcanization of the rubber and curing of an adhesive previously coated on the metallic surface have to take place simultaneously during a single molding step.In the present work, we present an instrumented molding device allowing the production of adhesion peeling test samples under well controlled curing temperature cycles. Tests performed on a model natural rubber compound with a commercial adhesive system show that, for high cure temperatures, the quality of the rubber-to-metal bonding obtained is significantly reduced. The decrease of the peeling energy appears to be inversely proportional to the reversion undergone by the rubber during cure. Such a result points out the necessity of taking into account this phenomenon for optimization of the vulcanization bonding process. |
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| Keywords: | Rubber Multi-materials Bonding Adhesion Reversion |
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