The influence of phosphonic acid pretreatment on the bronze corrosion protection by waterborne coating

Kapitanović, Angela; Ćurković, Helena Otmačić

doi:10.1007/s10008-023-05490-1

J Solid State Electrochem

2023

DOI: 10.1007/s10008-023-05490-1

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The influence of phosphonic acid pretreatment on the bronze corrosion protection by waterborne coating

Angela Kapitanović

Helena Otmačić Ćurković

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2024

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Cited by 2 publications

References 56 publications

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Bronze corrosion protection by bilayer systems: Self-assembled monolayers of phosphonic acid/waterborne acrylic coating

Kapitanović,

Kokot,

Otmačić Ćurković

2024

Progress in Organic Coatings

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Bronze corrosion protection by bilayer systems: Self-assembled monolayers of phosphonic acid/waterborne acrylic coating

Kapitanović,

Kokot,

Otmačić Ćurković

2024

Progress in Organic Coatings

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Phosphonic Acids as Corrosion Inhibitors and Adhesion Promoters for Organic Coatings and Bronze

Mikić,

Radovanović-Perić,

Otmačić Ćurković

2024

Materials

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Currently used organic coatings for the protection of bronze sculptures have a relatively short lifespan as a consequence of strict requirements of conservation ethics, which limit the selection of coatings. For that reason, enhancement of the corrosion protection level and durability of appropriate coatings is needed. The aim of this work was to examine if corrosion protection of bronze by selected acrylic and polyurethane coatings could be improved by using two phosphonic acids, 16-phosphonohexadecanoic acid (COOH-PA) and 12-aminododecylphosphonic acid (NH2-PA). Electrochemical measurements (linear polarization and electrochemical impedance spectroscopy, EIS) were performed to gain an insight into the influence of these phosphonic acids on the performance of the coatings during a two-week exposure to artificial acid rain and a three-month outdoor exposure. Besides the influence on the corrosion protection level, the influence on the coating adhesion was examined as well. A pull-off test clearly confirmed that the studied phosphonic acids act as adhesion promoters of both polyurethane and acrylic coatings, while electrochemical studies revealed improvements in corrosion protection levels, especially in the case of the acrylic coating Paraloid B72.

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The influence of phosphonic acid pretreatment on the bronze corrosion protection by waterborne coating

Cited by 2 publications

References 56 publications

Bronze corrosion protection by bilayer systems: Self-assembled monolayers of phosphonic acid/waterborne acrylic coating

Bronze corrosion protection by bilayer systems: Self-assembled monolayers of phosphonic acid/waterborne acrylic coating

Phosphonic Acids as Corrosion Inhibitors and Adhesion Promoters for Organic Coatings and Bronze

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