1Key Laboratory of Education Ministry for Modern Design & Rotary-Bearing System, Xi'an Jiaotong University, Xianning West Road, Xi'an, 710049
2Xi'an Jiaotong University, Institute of Design Science and Basic Component, Xianning West Road, Xi'an, 710049
3Xi'an Jiaotong University, Institute of Robotics & Intelligent Systems, Xianning West Road, Xi'an, 710049
4Xi'an Jiaotong University, Key Laboratory of Biomedical Information Engineering of Ministry of Education, Xianning West Road, Xi'an, 710049
Adv. Mater. Lett., 2019, 10 (8), pp 569-573
DOI: 10.5185/amlett.2019.2252
Publication Date (Web): Feb 19, 2019
Copyright © IAAM-VBRI Press
E-mail: liguoqin@xjtu.edu.cn, yalee@163.com
Currently, there is a huge demand for the application of superhydrophobic surface in industrial and marine equipment. In this investigation, the hydrophobicity of Q235 steel surface was achieved by implementing micro-patterns on the substrate using laser surface texturing and deposition of nano-copper particles. By controlling the movement of the laser spots, different controlled textures at microscale were fabricated. Via the chelation between the copper species and the catechol moieties on polydopamine (PDA), nano copper was decorated to form the multi-level structure. The surface microstructure, topographies, chemical component and wettability of as-prepared superhydrophobic surface were analyzed systematically. Based on the models built by Wenzel and Cassie–Baxter, the effect of micro texture on contact angle was discussed. This method is expected to have many potential applications including antibacterial materials for the protection of marine equipment. © VBRI Press.
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