Fabrication of superhydrophobic CuO/polystyrene nanocomposite coating with variation concentration

Abstract

Copper oxide (CuO) from Solok District has been successfully purified and can be reduced in size to nanode order. CuO and polystyrene powder is combined into a hydrophobic coating. The purpose of this study was to determine the effect of concentration variation on the coating of CuO / polystyrene composite in the form of contact angle between ait and the surface of the test layer. The results showed that for concentrations of 0.0 M, 0.4 M, 0.5 M, 0.6 M, 0.7 M, 0.8 M, 0.9 M, 1.0 M, and 1.1 M increased the contact angle of the CuO / polystyrene layer to the limit stability of the test layer. The water contact angles at the surface of the CuO / polystyrene composite coating for each CuO concentration are 54°, 75°, 80°, 96°, 105°, 122°, 133°, 162°, and 100°. The maximum contact angle obtained at 162° indicates that the surface is superhydrophobic.