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Abstract
The aim of this study was to analyze the effect of interfacial covalent bonds on the adhesive behavior of an elastomer, a crosslinked polydimethylsiloxane, and a glass substrate. These covalent bonds were created by applying to both materials an appropriate surface treatment by means of plasma polymerization. Adhesion measurements were carried out by analyzing the contact area between a rubber hemisphere and a flat rigid glass plate. The contact was forced under a given compressive loading for different times tc, then the load was removed and the fracture propagation at the interface was recorded as a function of relaxation time tr. Finally, adhesion energies were also determined by means of a probe test using a tensile testing machine.
ACKNOWLEDGMENTS
The French Ministère de l'Enseignement Supérieur et de la Recherche is gratefully acknowledged for the Ph.D. grant assigned to M. Palmieri. The authors want to thank also G. Schrodj from IS2 M for his help in dynamic mechanical analysis of rubber materials. The society Bluestar Silicones (Saint-Fons, France) is gratefully thanked for the kind providing of PDMS elastomers.
Notes
One of a Collection of papers honoring Wulff Possart, the recipient in February 2012 of The Adhesion Society Award for Excellence in Adhesion Science, Sponsored by 3M.