Simulation of the Corrosion Inhibition Behavior of Ionic Liquids on Q235 Carbon Steel in Seawater Environment
This article explores the corrosion inhibition effects of two ionic liquid corrosion inhibitors(1-ethyl-3-methylimidazole chloride and 1-dodecyl-3-methylimidazole chloride)on Q235 carbon steel in a simulated seawater environment.The corrosion inhibition effect of corrosion inhibitor on Q235 carbon steel under different concentration conditions was tested using electrochemical impedance spectroscopy and Tafel polarization curve technology.The experimental results show that when the number of branched carbon atoms in the imidazole salt ionic liquid corrosion inhibitor is 2,the corrosion inhibition effect is not significant;When the number of branched carbon atoms in the corrosion inhibitor is 12,the corrosion inhibition efficiency of the inhibitor will increase with the increase of the concentration of the inhibitor;The main reason is the growth of molecular chains,which enhances the blocking effect of the formed organic film,thereby increasing the corrosion inhibition efficiency.
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