Preparation of Superhydrophobic Coatings on Zinc as Effective Corrosion Barriers

被引:271
作者
Liu, Hongqin [1 ,2 ,3 ]
Szunerits, Sabine [1 ,2 ,4 ]
Xu, Wenguo [3 ]
Boukherroub, Rabah [1 ,2 ]
机构
[1] CNRS, IRI, USR 3078, F-59652 Villeneuve Dascq, France
[2] CNRS, IEMN 8520, F-59652 Villeneuve Dascq, France
[3] Beijing Inst Technol, Inst Chem Phys, Sch Sci, Beijing 100081, Peoples R China
[4] UJF, INPG, CNRS, LEPMI, F-38402 St Martin Dheres, France
关键词
superhydrophobic coating; zinc; corrosion inhibition; PROTECTION; SURFACES; DELAMINATION; INHIBITION; COPPER; STEEL; FILMS;
D O I
10.1021/am900100q
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Stable superhydrophobic films with contact angle of 151 +/- 2 degrees were prepared on zinc substrates by a simple immersion technique into a methanol solution of hydrolyzed 1H, 1H, 2H, 2H perfluorocyltrichlorosilane (CF3(CF2)(5)(CH2)(2)SiCl3, PFTS] for 5 days at room temperature followed by a short annealing at 130 degrees C in air for 1 h. The superhydrophobic film provides an effective corrosion-resistant coating for the zinc interface when immersed in an aqueous solution of sodium chrloride (3% NaCl) for up to 29 days. The corrosion process was investigated by following the change of the water contact angle over time and by electrochemical means. The results are compared to those of unprotected zinc interfaces.
引用
收藏
页码:1150 / 1153
页数:4
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