科研之友
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摘要
An easy approach of rapid dip-coating to superhydrophobic aluminum (Al) surfaces is reported. Dodecylphosphonic acid (DDPA) layers were formed on periodic micro-column-patterned Al surfaces by a rapid dip-coating in a 2 mM DDPA solution in trichloroethylene. It was demonstrated that DDPA layers were derived on Al substrates in a couple of seconds and superhydrophobic Al surfaces were achieved with water static contact and sliding angles of 153 degrees and 5 degrees, respectively. Atomic force microscope and X-ray photoelectron spectroscopy (XPS) measurements showed that multilayer and island structural DDPA layers were formed on Al substrates. XPS analyses demonstrated that DDPA headgroups were connected with Al by P-O-Al bonds which contributed to the excellent durability of the superhydrophobic Al surfaces.
- 出版日期2016-1
- 单位昆明理工大学; 昆明冶金高等专科学校; 大理大学; 昆明物理研究所
