Superhydrophilicity of a nanofiber-covered aluminum surface fabricated via pyrophosphoric acid anodizing

作者: Daiki Nakajima , Tatsuya Kikuchi , Shungo Natsui , Ryosuke O. Suzuki

DOI: 10.1016/J.APSUSC.2016.06.088

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摘要: Abstract A superhydrophilic aluminum surface covered by numerous alumina nanofibers was fabricated via pyrophosphoric acid anodizing. High-density anodic grow on the bottom of a honeycomb oxide anodizing in concentrated acid. The water contact angle nanofiber-covered decreased with time after 4 μL droplet placed surface, and behavior measuring 2.2° observed within 2 s; this is considerably lower than those for electropolished porous alumina-covered surfaces. There no dependence superhydrophilicity density different constant voltage conditions. property maintained during an exposure test 359 h. quick-drying snow-sliding behaviors were demonstrated.

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