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Preparation of a superhydrophobic rough surface

✍ Scribed by Hoon Joo Lee; Stephen Michielsen


Publisher
John Wiley and Sons
Year
2006
Tongue
English
Weight
403 KB
Volume
45
Category
Article
ISSN
0887-6266

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✦ Synopsis


Abstract

The relationship between the contact angles, surface tension, and surface roughness is reviewed. Numerical formulas related to the superhydrophobic rough surfaces of polymers are predicted with two approaches, the Wenzel and Cassie–Baxter models. With these models as a guide, an artificial superhydrophobic surface is created. Rough nylon surfaces mimicking the lotus leaf are created by the coating of a polyester surface with nylon‐6,6 short fibers via the flocking process. Poly(acrylic acid) chains aregrafted onto nylon‐6,6 surfaces, and this is followed by the grafting of 1__H,1__H‐perfluorooctylamine onto the poly(acrylic acid) chains. Water contact angles as high as 178Β° are achieved. Β© 2006 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 45: 253–261, 2007.


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