镁合金超疏水表面的制备技术与应用研究进展

Research Progress in Preparation of Superhydrophobic Coatings on Magnesium Alloys and Its Application

通过制备镁合金超疏水表面,可以有效减少镁合金表面与腐蚀介质的直接接触,从而提高镁合金的耐腐蚀性和防腐涂层稳定性,有助于进一步扩大镁合金在工业等领域中的应用。在简要概述固体表面润湿性的影响因素和相关理论分析的基础上,综述了国内外镁合金超疏水表面制备技术与应用的最新进展,重点归纳了粗糙表面的构建方法,探讨了各种制备方法的特点,总结了镁合金超疏水表面防腐蚀的机理,并提出了镁合金超疏水表面研究的发展方向。

Superhydrophobic coatings on the surface of magnesium alloy can effectively reduce the direct contacting opportunity between the substrate surface and the corrosive medium.This kind of physicochemical effect can enhance the corrosion resistance property and increase the anti-corrosion coating stability,thereby potentiating the application of magnesium alloy in industrial and other fields.Based on a brief introduction to the influences of wettability and the fundamental theories,recent advances of the fabrication and application of super-hydrophobic surfaces on magnesium alloys are reviewed.Here we generalize different methods of constructing rough surface and relevant physicochemical characters,meanwhile the mechanism of superhydrophobic surface for anti-corrosion are concluded.Finally,the prospect of the development of super-hydrophobic surfaces on magnesium alloy is proposed.