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Functional Textiles for Improved Performance, Protection and Health by G. Sun, N Pan

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15

Improving superhydrophobic textile materials

H.J. Lee,     North Carolina State University, USA

Abstract:

Since the wettability of a solid surface is determined by two parameters, the chemical composition and the geometrical structure of a rough surface, the combination of these two factors are used for the development of superhydrophobic surfaces. In this chapter, the relationships among contact angles, surface tension and surface roughness are reviewed; the physical surface modifications for the design of superhydrophobic surfaces are discussed; the wetting behavior of a rough surface is compared with that of a smooth surface; the relationship between the contact-angle hysteresis and the roll-off angle is analyzed, and the preparation ...

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