Anticorrosion Properties of Superhydrophobic Copper Surface Coatings Obtained by Electrodeposition

被引：0

作者：

Knyazeva L.G. ^{[1
]}

Tsygankova L.E. ^{[2
]}

Curyato N.A. ^{[1
]}

Dorokhov A.V. ^{[1
]}

Uryadnikov A.A. ^{[2
]}

Dorokhova A.N. ^{[2
]}

机构：

[1] All-Russian Research Institute of Machinery and Petroleum Products Management in Agriculture, Tambov

[2] Tambov State University named after G. R. Derzhavin, Tambov

来源：

Steel in Translation | 2023年 / 53卷 / 05期

关键词：

100% humidity; copper; corrosion promoters; superhydrophobic coating; temperature-humidity chamber; wetting angle;

D O I：

10.3103/S096709122305008X

中图分类号：

学科分类号：

摘要：

Abstract: Superhydrophobic coating is obtained by cathodic deposition of copper from a solution of 0.25 M CuSO4 + 0.5 M H2SO4 at a current density of 0.25 A/cm2 for 30 s on copper foil, followed by exposure to 0.01 M ethanolic solution of stearic acid for 1 h. The wetting angle of the water-formed coating is 155°–157°. Corrosion testing of copper samples with the resulting coating is carried out in a temperature-humidity chamber for 40 days, in an atmosphere with 100% humidity for 186 days and under conditions typical for livestock buildings, at 100% humidity and in the presence of CO2 corrosion accelerators, H2S and NH3 in pairs and simultaneously all three in maximum permissible concentrations for 46–56 days. In all cases, the coatings retain their superhydrophobicity, the wetting angle either remained almost unchanged or decrease by 2°–3°, and there is no corrosion damage on the samples. The influence of the copper electrodeposition mode from the solution of 0.25 M CuSO4 + 0.5 M H2SO4 on the wetting angle of the resulting coating is evaluated. © 2023, Allerton Press, Inc.

引用

页码：393 / 399

页数：6

共 15 条

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