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AIST TODAYNo.20 Spring 2006 [ PDF:3.4MB ]

Contents List Message:The autonomy of research units andthe mission of AIST Feature:The 4th AIST Advisory Board meeting Research Hot Line In Brief

Superhydrophobic surface fabricated from hydrophilic materials

Super-hydrophobic surface (contact angle : 178 degrees) has been fabricated from hydrophilic material through a nano-structure control technique. Nanometer-sized pins, which align perpendicular to surface, were grown from Co aqueous solution, and the pins were coated with lauric acid, subsequently. The surface with the pins of 6.5nm diameter showed super-hidrophobicity even the pins were hydrophilic.
Figure 1
Figure 1: (top-left,top-right) FE-SEM images of the nano-pin films observed from the top and side, respectively. (bottom-left) TEM images of the nano-pin films (bottom-right) Simple model of the film with the fractal structure.

Figure 2
Figure 2: (Left) the image of the water on the nano-pin film. (Center,Right) E-SEM images of the water on the nano-pin films observed from the top and side, respectively.

Figure 3
Figure 3: The stability of the Superhydrophobic surface fabricated from the nano-pin.

Relational Information

AIST TODAY Vol.6 , No.1 (2006) p.26-27

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