Hydrophobic Silicon-Based Coatings on Metal Surfaces: Development viaSol-Gel Process and Characterization

For the corrosion resistance of protective coatings on metal surfaces, an important characteristic istheir hydrophobicity. A surface with a water contact angle greater than ۹۰ degrees is consideredhydrophobic. Generally, hydrophobic coatings can be obtained by depositing a low-surface-energylayer that generates surface roughness. Silicon-based compounds, after fluorine compounds, have thelowest surface energy; they form a siloxane (Si-O-Si) structure on the substrate to imparthydrophobicity. The sol-gel process is currently recognized as a leading technology for thin films andcoatings. It serves as a suitable alternative to other deposition methods. This research aims to developa hydrophobic silicon-based coatings using the sol-gel process and precursors such asTetraethylorthosilicate (TEOS) and Trimethoxymethylsilane (MTMS). The silane based coatingswere examined using FTIR and water contact angle analysis. FTIR results confirmed the formationof silicon-based coatings, and water contact angle measurements indicated the hydrophobicity ofthese coatings.

کلیدواژه ها:

Silicone Coatings ، Sol-gel ، Inorganic-organic hybrid coatings ، Hydrophobicity