摘要
A layer of flower-like super-hydrophobic film was fabricated on pure Mg surface by chemical etching in H 2 SO 4 , H 2 O 2 and subsequent immersion in stearic acid (CH 3 (CH 2 ) 16 COOH) ethanol solution. The super-hydrophobic surface showed a static water contact angle of 154° with the sliding angle of about 3°. With scanning electron microscope (SEM), energy dispersive spectroscopy (EDS) and Fourier-transform infrared (FT-IR) spectrometer, the microstructure and composition of the sample were analyzed. Results showed that the flower-like structure and the bonding of the CH 3 (CH 2 ) 16 COO - on Mg surface can be responsible for the superior water-repellent property. Electrochemical impedance spectroscopy revealed that the transfer resistance of super-hydrophobic surface was increased about four times than bare Mg after one-hour immersion in 0.1 mol/L NaCl solution. Crown
源语言 | 英语 |
---|---|
页(从-至) | 3837-3840 |
页数 | 4 |
期刊 | Applied Surface Science |
卷 | 256 |
期 | 12 |
DOI | |
出版状态 | 已出版 - 1 4月 2010 |
已对外发布 | 是 |