A Cost-Effective Method for Preparing Robust and Conductive Superhydrophobic Coatings Based on Asphalt

Figure 6

Self-cleaning process on the as-prepared superhydrophobic surface: (a) the surface contaminated by the soil powder; (b, c) the contaminated surface dropped with water droplets; (d) the contaminated surface after the water dropping process.

(a)

(b)

(c)

(d)