Hydrophilicity, Hydrophobicity, and Superhydrophobicity

In 2011, Samuel, Zhao, and Law [16] reported a systematic study of the wetting and adhesion interactions of water with 20 different surfaces (1-20) using the microbalance in a tensiometer. Details of the study have been provided in Sect. 5.2. Briefly, we found that surface adhesion decreases linearly as the receding angle 

Another term that has been tentatively defined in the literature is superhydro-phobicity. As noted by Roach, Shirtcliffe, and Newton [19], the definition of super- 

In recent years, the term sticky superhydrophobidty, which is a convenient description of a sticky drop that has a large contact angle, appeared. Some Wenzel droplets also exhibit very large contact angle [20]. With the definition described in this chapter, the ad hoc term sticky superhydrophobicity should no longer be in existence. Such surface will be simply hydrophilic as its receding angle is 90°. 

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Y. Wang, B. Bhushan, and A. Maali, Atomic force microscopy measurement of boundary slip on hydrophilic, hydrophobic, and superhydrophobic surfaces, J. Vac. Sci. Technol. A, 27, 754-760 [2009). 

Law KY (2014) Definitions for hydrophilicity, hydrophobicity, and superhydrophobicity getting the basics right. J Phys Chem Lett 5 686-688... 

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