作者
Hongqin Liu, Sabine Szunerits, Wenguo Xu, Rabah Boukherroub
发表日期
2009/6/24
期刊
ACS applied materials & interfaces
卷号
1
期号
6
页码范围
1150-1153
出版商
American Chemical Society
简介
Stable superhydrophobic films with a contact angle of 151 ± 2° were prepared on zinc substrates by a simple immersion technique into a methanol solution of hydrolyzed 1H,1H,2H,2H-perfluorooctyltrichlorosilane [CF3(CF2)5(CH2)2SiCl3, PFTS] for 5 days at room temperature followed by a short annealing at 130 °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 chloride (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.
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