Abstract
The aim of this study was to obtain a superhydrophobic coating by modifying anodized aluminum using polydimethylsiloxane (PDMS). In order to obtain a superhydrophobic coating on an aluminum substrate, a multistage treatment was implemented. Specimens of aluminum were treated by abrasive blasting, anodization in sulfuric acid, impregnation by PDMS, rinsing in toluene to remove excess of PDMS, and curing. A rough surface with an additional low free energy layer on it resulted in a superhydrophobic effect. The coating obtained has an average contact angle of 159°. The specimens were tested in terms of durability in natural conditions. Additionally, anti-icing and anti-fouling properties were evaluated. The coating was compared with anodized aluminum obtained by a basic process.
Highlights
In the case of the superhydrophobic coating, the aluminum surface was treated by abrasive blasting, anodization, impregnation by PDMS, and curing
Series obtained by impregnation of anodized aluminum oxon the top PDMS
The coating was obtained during an interesting process that changed the nature of the aluminum surface from hydrophobic to superhydrophilic that changed the nature of the aluminum surface from hydrophobic to superhydrophilic and superhydrophobic
Summary
The aim of this study was to obtain a superhydrophobic coating by modifying anodized aluminum using polydimethylsiloxane (PDMS). The aim of this study was to obtain a superhydrophobic coating on aluminum using three consecutive methods: abrasive blasting, anodization of aluminum
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