Composite Interfaces, Vol.25, No.9, 785-808, 2018
A smart coating established with encapsulation of Zinc Molybdate centred nanocontainer for active corrosion protection of mild steel: release kinetics of corrosion inhibitor
In the current work smart coating of corrosion inhibitive nanocontainer was developed based on the encapsulation of ultrasonically synthesized Zinc Molybdate (ZM) nanoparticles. The ZM nanoparticles were doped ultrasonically with the layers of Myristic acid (MA), Polyaniline layer (PANI), benzotriazole layer and polyacrylic acid layer respectively to prepare layer by layer assembled nanocontainer. Results of XRD, PSD, FTIR, zeta potential and TEM analysis proves the successful formation of the layered structure of ZM nanocontainer particles. The release rate of benzotriazole at various experimental pH values was estimated using UV-vis spectroscopy. Different semi-empirical models were examined to predict the release mechanism of the benzotriazole. The corrosion inhibitive performance of ZM nanocontainers has been evaluated by incorporating 1wt % ZM nanocontainer in the epoxy based coating formulations and assessing by DC polarization measurement and Bode plots. The results from corrosion potential and Bode plots suggest the successful use of ZM nanocontainer in the multifunctional anticorrosion coating formulations. [GRAPHICS] .