Abstract
In this study, the effect of green henna as an inhibitor existing in the coating of TMSM-PMMA and its electrochemical study were analyzed. The coating was produced by "sol-gel" method for the corrosion protection of low–carbon steel. TMSM hybrid cell was synthesized by hydrolysis and condensation, Metaacryloxypropyltrimethoxysilane and Tetraetylorthosilicate with 1:1 molar ratio and PMMA hybrid cell was produced by Methylmetaacrylate polymerization. Finally two cells were mixed in 1:1 weight ratio. The carbon steel substrates were prepared by dip coating method. SEM technique was used to evaluate the structure of thin films including different concentrations of henna extract. Adhesion of coating was analyzed by "Pull off" test. Additionally, the experimental results obtained in different concentrations of henna extract using electrochemical methods such as tafel polarization, electrochemical impedance spectroscopy indicating that the concentration of %3 inhibitor in the coating had the maximum inhibition efficiency in 0.1M HCL. In this presentation, the electrochemical performance of the samples will be present.
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