Abstract
Superhydrophobic surfaces have been extensively studied for their unique low water adhesion. However, surface robustness and manufacturing difficulties are barriers to widespread use of superhydrophobic surfaces. In this study, a simple and fast surface modification of short-pulse laser-textured surface is developed for a robust superhydrophobic surface. Normally, short-pulse laser-textured surfaces can become superhydrophobic, but require toxic chemical coating, prolonged aging in air, or heat treatment for several hours. In our method, with only 10 minutes of heat treatment with non-toxic silicone oil, the nanosecond-pulse laser-textured stainless steel surface becomes superhydrophobic and shows good robustness.
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