An introduction to inorganic non-metallic anti-corrosion coatings for pipelines

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Inorganic non-metallic coatings exhibit superior corrosion resistance, aging resistance, and thermal and cold resistance compared to organic coatings; their service life is significantly extended. The main types include ceramic coatings, enamel coatings, and glass coatings. Ceramic coatings possess high chemical stability, as well as resistance to corrosion, oxidation, and high temperatures. Various methods for preparing ceramic coatings have been developed, including self-propagating high-temperature synthesis, thermal spraying, and chemical reactions. The enamel coating possesses excellent corrosion resistance; it can withstand organic and inorganic acids of various concentrations, as well as various bases and salts, offering outstanding overall anti-corrosion performance. Glass coatings exhibit excellent density, corrosion resistance, and wear resistance; their smooth surface helps to reduce drag. Their key advantages include an advanced manufacturing process, no aging over time, safety in use, superior corrosion resistance, wear resistance, good fluidity, strong weather resistance, being non-toxic, harmless, and pollution-free, low cost, standardized installation procedures, and a wide range of applications.