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Abstract In this paper, superhydrophobic (SH) copper surfaces were prepared by an oxidation process with NaClO2, NaOH and Na3PO4·12H2O and modification with 1-Octadecanethiol as a modifier. Effects of oxidation time,… Click to show full abstract
Abstract In this paper, superhydrophobic (SH) copper surfaces were prepared by an oxidation process with NaClO2, NaOH and Na3PO4·12H2O and modification with 1-Octadecanethiol as a modifier. Effects of oxidation time, modifier concentration, and modification time were examined. Results showed that the oxidation time 30 min, modifier concentration 2.5 mM, and modification time 5 h gave the optimal condition where contact angle (CA) and sliding angle were 161.1°, and 2.2° respectively. As well as, surface durability was examined by immersing acquired surfaces in de-ionized water and subjecting to open air for several days. Results showed the CA reduced to 119° for immersing in water after one week while it did not degrade in the air even after 45 days.
Journal Title: Materials Letters
Year Published: 2017
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