Preparation of ETFE-ZrO2 superhydrophobic composite coating on Q345 steel surface and its performance study

被引:0
作者
Han, Xiao [1 ]
You, Ziqi [1 ]
Liu, Yufeng [1 ]
Ma, Ruina [1 ,2 ]
Fan, Yongzhe [1 ,2 ]
Du, An [1 ,2 ]
Zhao, Xue [1 ,2 ]
Yang, Mingxu [1 ,2 ]
机构
[1] Hebei Univ Technol, Sch Mat Sci & Engn, Tianjin 300130, Peoples R China
[2] Hebei Key Lab New Funct Mat, Tianjin 300130, Peoples R China
基金
中国国家自然科学基金;
关键词
Superhydrophobic; Corrosion resistance; Spraying; Q345; CORROSION; FABRICATION; RESISTANCE; FACILE; ALLOY;
D O I
10.1016/j.porgcoat.2024.108977
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
In this study, superhydrophobic coatings characterized by micro- and nanostructures were fabricated using a simple spraying method. The water contact angle of the ETFE-ZrO2 composite coating achieved a maximum of 157.3 degrees after three spraying applications, with a mass ratio of ethylene-tetrafluoroethylene copolymer (ETFE) to modified ZrO2 particles established at 1:1. This coating had good corrosion resistance, as demonstrated by a reduction in corrosion current density to 2.162 x 10(-6) A/cm(2), which is an order of magnitude lower than that of Q345 steel. Following immersion in a 3.5 wt% NaCl solution for 72 h, the superhydrophobic coatings retained their hydrophobic properties. Furthermore, these coatings demonstrated good chemical stability, maintaining a water contact angle >150 degrees across a pH range of 3 to 12. Additionally, the coatings exhibited effective self-cleaning properties and photocatalytic effects. The rapid fabrication of these coatings presents significant advantages for the development of large-area, superhydrophobic, and self-cleaning surfaces, as they do not require complex modifications or reactions.
引用
收藏
页数:15
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