Hybrid superamphiphobic anti-corrosion coating with integrated functionalities of liquid repellency,self-cleaning,and anti-icing  

作　　者：Binbin Zhang Guang Yang Weichen Xu Jizhou Duan Baorong Hou 

机构地区：[1]CAS Key Laboratory of Marine Environmental Corrosion and Bio-fouling,Institute of Oceanology,Chinese Academy of Sciences,Qingdao 266071,China [2]University of Chinese Academy of Sciences,Beijing 100049,China [3]School of Metallurgy Engineering,Jiangsu University of Science and Technology,Zhangjiagang 215600,China

出　　处：《Journal of Materials Science & Technology》2024年第17期256-268,共13页材料科学技术（英文版）

基　　金：the financial support of the Shandong Provincial Natural Science Foundation(Nos.ZR2022YQ35 and ZR2021LFG004);the Youth Innovation Promotion Association of Chinese Academy of Sciences(No.2021207).

摘　　要：Superhydrophobic materials have shown tremendous potential in various fields.However,the adhesion,wetting,and pinning of low-surface-tension liquids greatly limit their multifunctional applications.Therefore,the creation of superamphiphobic coatings that combine superhydrophobic and superoleophobic properties through a simple preparation strategy is desirable.In this study,we successfully developed an organic-inorganic hybrid superamphiphobic coating on Q235 carbon steel using aluminum oxide nanopar-ticles,organosilanes,and waterborne epoxy resin via a versatile spray-coating technique.The coating ex-hibited high contact angles(>151°)and low sliding angles(<7°)for water and oil liquids,demonstrating excellent superamphiphobic characteristics.Electrochemical tests demonstrated significant improvements in charge transfer resistance and low-frequency modulus for the superamphiphobic coating.The corro-sion potential shifted positively by 590 mV,and the corrosion current density decreased by four orders of magnitude.Additionally,the coating endured 480 h of salt spray and 2400 h of outdoor atmospheric exposure,showcasing superior anti-corrosion capacity.Freezing tests of water droplets at-10℃ and-15℃ confirmed that the coating significantly prolonged the freezing time with reduced ice adhesion strength.We believe that the designed superamphiphobic coating with integrated functionalities of selfcleaning,anti-corrosion,anti-icing,and anti-liquid-adhesion can provide important solutions for extending the lifespan of materials in marine and industrial environments.

关 键 词：SUPERHYDROPHOBIC Superamphiphobic ANTI-CORROSION ANTI-ICING SELF-CLEANING 

分 类 号：TB306[一般工业技术—材料科学与工程]