Biomimetic surfaces with hierarchical structure using microsized texture and nanosized Cu particles for superhydrophobicity

Qin, L., Yang, H., Feng, X., Hafezi, M., Jules, M. F., Liu, B., Zhang, H., Dong, G. and Zhang, Y. (2019) Biomimetic surfaces with hierarchical structure using microsized texture and nanosized Cu particles for superhydrophobicity. Advanced Materials Letters, 10(8), pp. 569-573. (doi: 10.5185/amlett.2019.2252)

Abstract

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.

• Item Type: Articles
• Additional Information: This work was supported by “the Fundamental Research Funds for the Central Universities”. The authors acknowledge the joint financial support from the National Natural Science Foundation of China (51605370 and 51475358), Postdoctoral Science Foundation of Shaanxi Province (2017BSHEDZZ122), China Postdoctoral Science Foundation funded project (2016M602802) and the Natural Science Fund of Shaanxi Province (2017JQ5009).
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Hafezi, Dr Mahshid
• Authors: Qin, L., Yang, H., Feng, X., Hafezi, M., Jules, M. F., Liu, B., Zhang, H., Dong, G., and Zhang, Y.
• College/School: College of Science and Engineering > School of Engineering > Systems Power and Energy
• Journal Name: Advanced Materials Letters
• Publisher: International Association of Advanced Materials
• ISSN: 0976-3961
• ISSN (Online): 0976-397X