Anti-corrosive superhydrophobic coatings fabricated by a simple dipping method

Abstract

The two-step dipping technique was used to fabricate anti-corrosive fluorocarbon paint (FP)/ SiO 2 superhydrophobic coatings on the surfaces of aluminium alloy substrates. In order to characterise the surface microtopography, chemical element and groups, hydrophobicity, and corrosion performance of these prepared coatings, we employed a scanning electron microscope (SEM) and X-ray photoelectron spectrometer (XPS) as well as performing electrochemical experiments. Coating adhesion was reflected by the scotch-tape test. The coatings had a micron-nanometre hierarchical structure, and their surface morphologies were strongly dependent on the silica nanoparticle concentration. The superhydrophobicity of the coating was correlated with its microstructure and composition. The electrochemical experiments revealed that the obtained coating could enhance the corrosion performance of the underlying Al alloy substrates.

Super‐liquid‐repellent thin film materials for low temperature latent heat thermal energy storage: A comprehensive review of materials for dip‐coating

“…Hybrid organic-inorganic materials (HYB) containing nanoparticles, inorganic or organic powders, and nano/micro fibres are frequently investigated under this theme. Topical themes, that is, weather/chemical/corrosionresistance, 96,132,192,196,199,201,203,205,206,[211][212][213][214][215][216] wear/abrasion-resistant/adhesion strength 132,190,191,193,194,[197][198][199][200]204,207,208,[217][218][219] and long-term thermal stability 157,171,189,196,207,209,211,213,214,217,[219][220][221][222] were found. Recent research is optimistic about realising robust, reliable, easily reparable 216,223 and long-lasting STFs for a wide range of engineering applicati...…”

Green and Abrasion-Resistant Superhydrophobic Coatings Constructed with Tung Oil/Carnauba Wax/Silica for Wood Surface

“…Superhydrophobic surfaces typically exhibit extreme water repellency, possessing high contact angles (>150°) and low roll-off angles (<10°) [ 7 , 8 ]. Superhydrophobic coatings have been widely used in applications such as self-cleaning [ 9 ], corrosion protection [ 10 ], anti-icing [ 11 ], and water–oil separation [ 12 ]. In recent years, numerous methods to construct superhydrophobic coatings on wood surfaces have been proposed.…”