电焊机2026，Vol.56Issue(9)：81-92,12.DOI:10.7512/j.issn.1001-2303.2026.09.09
可规模化超疏水表面的简易构建及其防腐-减阻双功能调控
A Facile Method for Constructing Scalable and Low-Cost Superhydro-phobic Coating with Anti-Corrosion and Drag-Reduction Properties
摘要
Abstract
Through the reasonable design of the microstructure of superhydrophobic coatings,the solid-liquid contact area between the substrate and the liquid can be reduced,the penetration of corrosive media can be inhibited,and the flow resis-tance can be lowered.In this paper,a biomimetic superhydrophobic composite coating on an aluminum substrate was pre-pared by spraying KH550 coupling-agent-modified silica(KH550@SiO2)and stearic-acid-modified titanium dioxide(STA@TiO2)mixed with waterborne polyurethane.The performance was evaluated by water contact-angle measurements,drag-reduction tests,and electrochemical analysis.The composite coating exhibited a droplet contact angle of 163.4° and a rolling angle of 4°,demonstrating excellent superhydrophobicity.The synergistic effect of the air layer and the dense coating structure resulted in excellent corrosion inhibition in a 3.5 wt.%NaCl solution.In addition,the composite-coated spheres formed a continuous air cavity during water entry,which is essential for extending the drag-reduction capability of the coat-ing in liquids.The design and preparation of the superhydrophobic composite coating show promising applications in large-area metal corrosion protection and navigation drag reduction.关键词
超疏水/复合涂层/仿生/减阻/防腐蚀Key words
superhydrophobic/biomimetic/drag reduction/anticorrosion分类
矿业与冶金引用本文复制引用
张迎康,邓远婷,殷祚炷,张体明..可规模化超疏水表面的简易构建及其防腐-减阻双功能调控[J].电焊机,2026,56(9):81-92,12.基金项目
江西省自然科学基金(20224BAB204046,20232BAB211018) （20224BAB204046,20232BAB211018）
哈尔滨工业大学先进焊接与连接国家重点实验室项目(AWJ-23M26) （AWJ-23M26）
江西省研究生创新专项资金(YC2023-013,YC2023-018). （YC2023-013,YC2023-018）
