Abstract

The adherence of epoxyphenolic coatings on electrolytic tinplates through mechanical-electrochemical trials, determination of the contact angle (CA) and work of adhesion was studied. The performance and degradation of the coated tinplate was evaluated by polarization tests and Attenuated Total Reflection (ATR) vibration spectroscopy. The micro-and ultra-structural characterization of the epoxyphenolic films was made by scanning electron microscopy (SEM) and transmission electron microscopy (TEM) techniques. The results showed that the existence of pores and surface defects influenced the quality of the adherence of the coating and that the citric-citrate solution does not degrade this type of sanitary lacquer under the tested conditions.