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Degradation of rubber to metals bonds during its cathodic delamination, validation of an artificial ageing test ArchiMer
Nakache, Maryline; Aragon, Emmanuel; Belec, Lenaik; Perrin, Francois-xavier; Roux, Gerard; Le Gac, Pierre-yves.
Rubber-metal assemblies used for submarine applications are often associated to cathodic protection which can lead to cathodic disboncling of the polymer/metal interface. The degradation mechanisms of polychloroprene/epoxy adhesive/copper-aluminium substrate systems associated to an accelerated ageing test are compared to the degradations resulting from natural ageing conditions in the Mediterranean sea. From destructives tests, a kinetic in four steps is identified for both ageing conditions. This kinetic is confirmed by Electrochemical Impedance Spectroscopy data during ageing. In order to further identify the failure mode, the disbondecl surfaces on polymer and steel sides are analyzed using SEM and FTIR. Both ageing conditions present the same type of...
Tipo: Text Palavras-chave: Ageing; Rubber to metal systems; Cathodic delamination; FTIR.
Ano: 2011 URL: http://archimer.ifremer.fr/doc/00056/16697/14370.pdf
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