Characterization and Superhydrophobic Anticorrosive Coating of AA-7475/ZrO₂/Polymer Nanocomposites

Table 2

Mean roughness and WCA of polymer nanocomposites.

Polymer nanocomposites	ZrO2 nanoparticles (wt%)	Avg. roughness (nm)	WCA (°)
PNC-1 (Sample-1)	0.6	11.82	125
PNC-2 (Sample-2)	1.2	15.36	126
PNC-3 (Sample-3)	1.8	25.81	134
PNC-4 (Sample-4)	2.4	29.96	136
PNC-5 (Sample-5)	3.0	60.52	154

WCA, water contact angle.