Figure 6

The hydrophobic performances (CAs) of the E-DA-TiO2 (Ag)@PC coatings depending on the varying testing conditions of (A) pH values, (B) temperature, (C) ion strengths (NaCl concentrations) and (D) storage time, where the CAs were recorded for the E-DA-TiO2 (Ag)@PC coatings created on the glue-patterned glass substrates and further immersed overnight into the testing solutions, expect for the ones with the storage time for one year (insert: the photographs of corresponding water droplets for measuring CAs).