Transformation of a Simple Plastic into a Superhydrophobic Surface

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Science  28 Feb 2003:
Vol. 299, Issue 5611, pp. 1377-1380
DOI: 10.1126/science.1078365

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Superhydrophobic surfaces are generally made by controlling the surface chemistry and surface roughness of various expensive materials, which are then applied by means of complex time-consuming processes. We describe a simple and inexpensive method for forming a superhydrophobic coating using polypropylene (a simple polymer) and a suitable selection of solvents and temperature to control the surface roughness. The resulting gel-like porous coating has a water contact angle of 160°. The method can be applied to a variety of surfaces as long as the solvent mixture does not dissolve the underlying material.

  • * To whom correspondence should be addressed. E-mail: yerbil{at} (H.Y.E); ldemirel{at} (A.L.D.)

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