Facile Fabrication of a Hierarchical Superhydrophobic Coating with Aluminate Coupling Agent Modified Kaolin

Figure 4

TEM micrographs of kaolin particles. The scale bars represent (a) 200 nm, (b) 200 nm, (c) 50 nm, and (d) 20 nm, respectively.

(a)

(b)

(c)

(d)