摘要

Mechanical operation is a promising attempt to develop superhydrophobic surfaces. But at present many methods are dependent on ultra-precision processing equipment and technology which increase the fabrication cost and limit their practical application. This paper discusses a simple and effective method to prepare superhydrophobic surfaces by a combination of milling operation on a common milling machine and stearic acid modification. By adjusting the rotational speed and feed rate, regular groove-like microstructures are fabricated on the machined aluminium alloy surfaces. The surfaces are superhydrophobic with water contact angles higher than 150 degrees and sliding angles about 10 degrees after the modification. The sample surfaces were characterized by scanning electron microscopy (SEM), Fourier transformed infrared (FTIR) spectroscopy and water contact angle measurements. The present method can have a good prospect in future industrial application due to its great efficiency, low cost and simple fabrication.

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