Corrosion Performance of Nano-ZrO(2) Modified Coatings in Hot Mixed Acid Solutions

A nano-ZrO(2) modified coating system was prepared by incorporation of nano-ZrO(2) concentrates into phenolic-epoxy resin. The corrosion performance of the coatings was evaluated in hot mixed acid solution, using electrochemical methods combined with surface characterization, and the effects of nano...

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Detalles Bibliográficos
Autores principales: Xu, Wenhua, Wang, Zhenyu, Han, En-Hou, Wang, Shuai, Liu, Qian
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6024964/
https://www.ncbi.nlm.nih.gov/pubmed/29865164
http://dx.doi.org/10.3390/ma11060934
Descripción
Sumario:A nano-ZrO(2) modified coating system was prepared by incorporation of nano-ZrO(2) concentrates into phenolic-epoxy resin. The corrosion performance of the coatings was evaluated in hot mixed acid solution, using electrochemical methods combined with surface characterization, and the effects of nano-ZrO(2) content were specially focused on. The results showed that 1% and 3% nano-ZrO(2) addition enhanced the corrosion resistance of the coatings, while 5% nano-ZrO(2) addition declined it. The coating with 3% nano-ZrO(2) presented the minimum amount of species diffusion, the lowest average roughness (5.94 nm), and the highest C/O ratio (4.55) and coating resistance, and it demonstrated the best corrosion performance among the coating specimens.

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