A stable superhydrophobic surface with self-cleaning property was obtained on AZ31 magnesium alloy via a process combining both electrodeposition and post-modification with stearic acid.
Polyethylene (PE boehmite nanocomposites were prepared by means of metallocene/MAO-catalyzed in-situ polymerization of ethylene in the presence of boehmites, which were rendered organophilic by modification with carboxylic acids such as stearic acid and undecylenic acid.
Followed by modification of stearic acid, a superhydrophobic surface with a water contact angle as high as 167.3 ± 1.3° and an ultra-low sliding angle of about 1° was achieved.
The surface modification of the oxidized MWNTs was achieved by refluxing the MWNTs with stearic acid (SA).
Superhydrophobic surfaces with controlled sliding angles (SAs) on zinc substrates have been fabricated via a simple hydrothermal process as well as the subsequent modification of stearic acid.
Being modified with stearic acid, the surface turned hydrophobicity (contact angle of 109±2°) but superlipophilicity (contact angle of <1°), which means a change of surface wettability, and the surface can recover to its initial superamphiphilic state once remove the modification.
Comparison was made with stearic acid treatment of the composites.
Superhydrophobic copper surfaces are obtained by machine cutting using 60° thread cutters followed by modification using stearic acid solution.
