Cailiao Baohu (May 2023)
Preparation of Superhydrophobic Coating on Magnesium Alloy Substrate and Its Anti-Fouling and Anti-Corrosion Properties
Abstract
In order to prolong the service life of magnesium alloy, a stable superhydrophobic coating was prepared on AZ31b magnesium alloy substrate by spraying method. Firstly, an epoxy resin bonding layer was coated on the surface of substrate, and micron SiO2 particles were sprayed on the epoxy resin bonding layer to construct a micron framework. Subsequently, nano polytetrafluoroethylene particles were sprayed to provide hydrophobic particles. The prepared superhydrophobic coating had a contact angle of ~157.40° and sliding of only 2°. Results showed that the superhydrophobic coating had excellent chemical and mechanical stability, good corrosion resistance, self-cleaning and anti-fouling properties.
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