The synergistic effect of an imidazolium salt and benzotriazole on the protection of bronze surfaces with chitosan-based coatings

Posted on 22.04.2020 - 03:35
Abstract The class of imidazolium salts contains effective anticorrosion additives for metal substrates. This study evaluated the potential of 1-carboxymethyl-3-methylimidazolium bis (trifluoromethylsulfonyl) imide (HO2CC1MImNTf2) for application in cultural heritage, exploring it as anticorrosion additive in chitosan-based coatings for the protection of copper-based alloys. Under accelerated corrosion conditions with HCl vapor, the chitosan coating with HO2CC1MImNTf2 was less effective than the one with benzotriazole. The coating with a combination of HO2CC1MImNTf2 and benzotriazole resulted in the optimal protective efficacy of the bronze surface, and it also maintained high transparency without changing the bronze appearance.

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Silva da Conceição, Debora Kelen; Nunes de Almeida, Kauana; Nhuch, Elsa; Raucci, Maria Grazia; Santillo, Chiara; Salzano de Luna, Martina; et al. (2020): The synergistic effect of an imidazolium salt and benzotriazole on the protection of bronze surfaces with chitosan-based coatings. figshare. Collection. https://doi.org/10.6084/m9.figshare.c.4947516.v1
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AUTHORS (13)

Debora Kelen Silva da Conceição
Kauana Nunes de Almeida
Elsa Nhuch
Maria Grazia Raucci
Chiara Santillo
Martina Salzano de Luna
Luigi Ambrosio
Marino Lavorgna
Chiara Giuliani
Gabriella Di Carlo
Maria Paola Staccioli
Tiago Falcade
Henri Stephan Schrekker
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