Journal
TRIBOLOGY INTERNATIONAL
Volume 123, Issue -, Pages 17-25Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.triboint.2018.02.036
Keywords
Superhydrophobic; Self-cleaning; Anti-fogging; Water-repellent
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In this work, superhydrophobic coatings on brass surfaces were prepared by two-step (chemical etching with a mixture of hydrochloric and nitric acids, followed by treatment with lauric acid) and one-step (treatment with lauric acid). The surface morphology shows the presence of rough microstructures on treated brass surfaces. Superhydrophobicity with high water static contact (>173 degrees)and low sliding angles (<4 degrees) is achieved by both processes. Besides, the dynamics of water droplets on the coated samples also were studied. Additionally, the durability of the coatings also was examined by performing thermal, chemical, and mechanical stability tests. Along with, these coatings are also found to be excellent regeneration ability as verified experimentally. Further, coatings exhibit self-cleaning and anti-fogging properties.
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