The Synthesis Of New Organic Polymers With Anticorrosive And Antiscaling Action For Protection Of Industrial Cooling Water Systems

摘要

Using microwave energy new organic polymers were synthesised by radical polymerization. These new organic compounds have anticorrosive and antiscale properties and for this reason, were used for cooling water systems protection. We presume that these new organic polymers inhibit corrosion of carbon steel by a protective mechanism, forming insoluble iron complexes and repairing the porous oxide layers. The methods employed were potentiodynamic polarization, electrochemical impedance spectroscopy and metallurgical microscopy techniques. The addition of the organic inhibitors led in all cases to inhibition of the corrosion rate. The corrosion parameters obtained from polarization curves and from EIS spectra are in good concordance and point out the inhibitory action of these new organic polymers. The adsorptions of the organic compounds on the carbon steel surface obeyed Langmuirs isotherm. Using Fourier transform infrared spectroscopy (FT-IR) the adsorption of organic inhibitors and the formation of corrosion products on the carbon steels surface was demonstrated.