Application of polyphenyl-modified titanium dioxide composites in water-based epoxy coatings

In a recently published study, researchers looked at the corrosion protection of Q235 steel in water-based epoxy coatings from polyphenyl-modified TiO 2 composites.
the development of active systems to protect metal substrates from corrosion is a promising approach for many industrial applications. In a new work, a self-healing coating based on polyphenylamine (PANI) modified TiO 2 particles has been developed for corrosion protection of Q235 steel
China
. The TiO 2 / PANI particles are synthesized by in-place polymerization and dispersed into a water-based epoxy coating. Structure and shape of TiO 2 / PANI particles prepared by FTIR, XRD and SEM profiling.
TiO 2 / PNAI particles improve corrosion resistance
the corrosion resistance of coatings is studied through electrochemical impedance spectrum (EIS) and scanning electrochemical microscope (SECM). THE EIS analysis shows improved corrosion resistance in the presence of TiO 2 / PNAI particles. The SECM measurement was performed to monitor the function relationship between the reduction in oxygen processes and the exposure time in the 3.5% NaCl solution. SECM results show that TiO 2 / PANI particles have excellent corrosion resistance compared to blank coatings exposed to corrosion.
the study was published last week: Journal of Coatings Technology and Research January 2019, Volume 16, Issue 1, pp 71-80.