The protective efficiency of 3-mercapto-propyl-trimethoxy-silane (PropS-SH) was evaluated towards bare and aged bronze. The wet & dry (stagnant rain) and dropping (runoff) techniques were used both for producing pre-patinated surfaces representative of real artefacts and for performing accelerated tests to verify PropS-SH protection efficiency. The surface corrosion products and the metal release were analyzed through spectroscopic techniques. The role of alloying metals in the corrosion/inhibition process was assessed through electrochemical analyses performed on bare and prefilmed alloying elements. The results showed good protective efficiency of the silane coating on bare and pre-patinated samples, both in stagnant and runoff conditions.

Protective silane treatment for patinated bronze exposed to simulated natural environments

C. Chiavari
Primo
;
BALBO, Andrea
Secondo
;
C. Martini;ABBOTTONI, Marco
Penultimo
;
MONTICELLI, Cecilia
Ultimo
2013

Abstract

The protective efficiency of 3-mercapto-propyl-trimethoxy-silane (PropS-SH) was evaluated towards bare and aged bronze. The wet & dry (stagnant rain) and dropping (runoff) techniques were used both for producing pre-patinated surfaces representative of real artefacts and for performing accelerated tests to verify PropS-SH protection efficiency. The surface corrosion products and the metal release were analyzed through spectroscopic techniques. The role of alloying metals in the corrosion/inhibition process was assessed through electrochemical analyses performed on bare and prefilmed alloying elements. The results showed good protective efficiency of the silane coating on bare and pre-patinated samples, both in stagnant and runoff conditions.
Chiavari, C.; Balbo, Andrea; Bernardi, E.; Martini, C.; Bignozzi, M. C.; Abbottoni, Marco; Monticelli, Cecilia
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/1818100
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