as Mechanical Fragile Microcapsules: Effect of Yeon Remem on Corrosion Resistance Epoxy Coating

In recent years, introduction of self-healing coatings based on microcapsules containing healing agent and green corrosion inhibitor opened a new chapter in the manufacture of organic polymer coatings. In this regard microcapsules based on poly (melamine-formaldehyde) get noticed. In this work, melamineformaldehyde microcapsules containing air-dried alkyd resin with cerium nitrate as a corrosion inhibitor are synthesized by in situ polymerization. Then synthesized microcapsules were used into epoxy resin. Anti-corrosion properties and self-repairing of coating were investigated. Scanning electron microscope, differential scanning calorimetry, Fourier transform infrared spectroscopy (FT-IR) and electrochemical impedance spectroscopy were used to survey. Finally, by selecting a microcapsule, which was synthesized by agitation rate of 800 rpm, and using polyvinyl pyrrolidone as a colloidal stabilizer, in 7.5% by weight with epoxy coating was applied. The results show a better corrosion resistance from 1.44×103 (Ω/cm2) to 2.83×108 (Ω/cm2) and self-repairing coating.