Extreme Wetting-Resistant Multiscale Nano-/Microstructured Surfaces for Viscoelastic Liquid Repellence

Figure 4

Droplet roll-off angle measurements of (a) water, (b) latex 35%, and (c) latex 60% on tilted substrates with precedent coatings of chemically surface-modified silica aggregates of varied functionalization time and FDTS-silanol mole ratio, . The insets show typical samples of droplet rolling on surface with = 1 : 1, at day 3 of reaction, and with an inclined angle .

(a)

(b)

(c)