| INORGANIC MATERIALS AND CERAMIC MATRIX COMPOSITES |
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| Construction of Superhydrophobic Sand Surface and Its Properties Based on Chemical Etching |
| REN Yongzhong1,*, SHU Tianhao2, LI Xinlin1, ZHANG Zhenyu1, LIANG Bunv1, LI Tianyi2, JIN Zhihua1
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1 School of Civil Engineering, Lanzhou Institute of Technology, Lanzhou 730050, China
2 School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China |
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Abstract By chemical etching method, the ordinary sand with micro/nano composite hierarchical structure was prepared by sulfuric acid and hydrogen peroxide. And then the etched sand was modified with low surface energy substance octaalkyl trimethoxy-silane to get the superhydrophobic sand. The superhydrophobic sand was tested by SEM, contact angle. The results show that surface of the modified sand presents micro-nano hierarchical roughness, and the static contact angle to water is 154°. In addition, high temperature resistance and evaporation resis-tance of the prepared superhydrophobic sand were explored. Relevant studies provide ideas and methods for sand fixation and desert environmental gover-nance.
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Published: 25 March 2025
Online: 2025-03-24
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