Contact Angle on rough surfaces

WolanskyG, Marmur A. (1999) Apparent contact angles on rough surfaces the wenzel equation revisited. Colloids Surf A 156 381-388. 

DETTRE AND JOHNSON Contact Angles on Rough Surfaces 141... 

Patankar, N.A., On the modeling of hydrophobic contact angles on rough surfaces, Langmuir, 19, 1249, 2003. 

Patankar, N. A. 2003. On the Modehng of Hydrophohic Contact Angles on Rough Surfaces. Langmuir 19 1249. 

Fig. 4.4 Schematic of the free energy relationship between Wenzel angle 0 and the equilibrium contact angle on rough surface...

Rusanov AI, Prokhorov VA (1996) Interfiicial tensiometry, vol. 3. In Mobius D, Miller R (eds) Studies in interface science, vol 3. Elsevier, Amsterdam/ Lausanne/New York/Oxford/Shannon/Tokyo Schulze RD, Possart W, Kamusewitz H, Bischof C (1989) Young s equilibrium contact angle on rough solid surfaces - I. An Empirical Determination. J Adhes Sci Technol 3 39- 8... 

Figure 1 Contact angles on structured surfaces in the classic Wenzel (W) and Cassie-Baxter (C-B) states, respectively, where r is the physical amplification of surface area due to roughness and fs is the fractional area in contact with a L Adapted from Shirtdiffe etal.(2010).

Long J, Hyder MN, Huang RYM, Chen P (2005) Thermodynamic modeling of contact angles on rough heterogeneous surfaces. Adv Colloid Interface Sci 118 173-190... 

Lin et al. [70, 71] have modeled the effect of surface roughness on the dependence of contact angles on drop size. Using two geometric models, concentric rings of cones and concentric conical crevices, they find that the effects of roughness may obscure the influence of line tension on the drop size variation of contact angle. Conversely, the presence of line tension may account for some of the drop size dependence of measured hysteresis. 

Gain, J. B., Erancis, D. W., Venter, R. D., and Neumann, A. W. Dynamic contact angles on smooth and rough surface. Journal of Colloid and Interface Science 1983 94 123-30. 

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