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论文类型：期刊论文

发表时间：2020-04-05

发表刊物：COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS

收录刊物：EI、SCIE

卷号：590

ISSN号：0927-7757

关键字：Superhydrophobic; Anti-corrosion; Anti-icing; Electrochemical machining; Iron materials

摘要：Iron materials have the extremely widespread applications and they are common in all kinds of frame structures, such as iron tower. However, it is well known that ironwork is easy to rust. Besides, in cold environment the freezing rain adhered to the iron facility can also bring huge potential security problems. Herein, we present a modified electrochemical machining (ECM) method by applying a mixed aqueous solution of Na2MoO4 and NaCl to fabricate superhydrophobic film on iron materials followed by fluoroalkylsilane (FAS) modification. The proposed ECM method can not only generate rough microstructures very rapidly even at low electrical parameters, but also reduce the pollution of the electrolyte by recycling the corrosion products. The sandpaper abrasion and knife scratch tests were utilized to demonstrate the mechanical strength of the obtained superhydrophobic surfaces. Good self-cleaning properties were also showed by using several kinds of contaminants and corrosive solutions. Furthermore, we demonstrated the good anti-fogging property by using atomizer and the anti-icing property by static and dynamic anti-icing tests in a cold environment to show the practical applications of the prepared film. We believe that the modified ECM method has broad application prospects.