Polyamides containing Oxadiazole ring moiety as corrosion inhibitor for Aluminium in acid solution.
Keywords:Corrosion, Polyamides, Oxadiazole, acid medium, Aluminium
Corrosion control of metals is an important activity of technical, economic, environmental, and aesthetical importance. The use of inhibitors is one of the best options for protecting metals and alloys against corrosion. This study involves the investigation of new and effective polymeric material for the application of corrosion inhibition on aluminium in the acid medium using chemical and electrochemical methods. Results obtained from weight loss and potentiodynamic and impedance methods confirm that polyamides containing oxadiazole rings in their backbone can act as effective corrosion inhibitors. The adsorption behaviour of this polymer on aluminium in 1N HCl was found to obey Langmuir adsorption isotherm. SEM studies confirmed the protective film formed on aluminium by the adsorption of Polyamides.
Shukla S.K., Quraishi M.A. and Prakash R., A Self Doped Conducting Polymer Polyanthranilic Acid”: An efficient corrosion inhibitor for mild steel in acidic solution, Corros. Sci., 50, 2867-2872 (2008)
James A. O. and Akaranta O., Inhibition of Corrosion ofZinc in Hydrochloric Acid Solution by Red Onion Skin Acetone Extract, Res.J.Chem.Sci., 1 (1), 31-37 (2011)
Manimaran N., Rajendran S., Manivannan M and John Mary S., Corrosion Inhibition of Carbon Steel by Polyacrylamide, Res.J.Chem.Sci., 2 (3), 52-57 (2012)
Kumar Harish and Sunita, ADS, ALS, AHDS and ADDBS Surfactants as Corrosion Inhibitors for Carbon Steel in acidic Solution, Res.J.Chem.Sci., 2 (7), 1-6 (2012)
Sribharathy V. and Susai Rajendran, Influence of Melonic acid on the Corrosion Inhibition of Sodium Metavanadate in Chloride Medium, Res.J.Chem.Sci., 2 (6), 72-81 (2012)
Tripathi R., Chaturvedi A. and Upadhayay R.K. Corrosion Inhibitory Effects of Some Substituted Thiourea on Mild Steel in Acid Media, Res.J.Chem.Sci., 2 (2), 18-27 (2012)
Moretti G., Quartarone G., Tassan A. and Zingales A.,Some derivatives of indole as mild steel corrosion inhibitors in 0.5 M sulphuric acid, British Corros. J., 31 (1), 49-54 (1996)
Stankovic Z.D. and Vukovic M., The Influence of thiourea on kinetic parameters on the cathodic and anodic reaction at different metals in H2SO4 solution, Electrochim. Acta, 41, 2529-2535 (1996)
Sing A. and Chaudhary, R.S., Dithizone and Thiosemicarbazide as Inhibitors of Corrosion of Type 304 Stainless Steel in 1.0 M Sulfuric Acid Solution, British Corros. J., 31(4), 300-304 (1996)
Sitaram S.P., Stoffe J.O. and Okeefe T.J., Application of conducting polymers in corrosion protection, Journal of Coating Technology, 69 (866), 65-69 (1997)
Subramania A., Sundaram N.T.K., Sathiya Priya R. and Muralidharan, V.S., Vasudevan T., Polymeric corrosion inhibitors -an overview, Bull. Electrochem., 20 (2), 49 -58 (2004)
S. Zaromb, The use and behavior of aluminum anodes in alkaline primary batteries, J. Electrochem. Soc. 109 (1962) 1125.
K.F. Blurton, A.F. Sammells, Metal/air batteries: Their status and potential – a review, J. Power Sour. 4 (1969) 263.
D.D. Macdonald, C. English, Development of anodes for aluminium/air batteries – solution phase inhibition of corrosion, J. Appl. Electrochem. 20 (1990) 405.
A.J. Bard, R. Parsons, J. Jordan, in: Standard Potentials in Aqueous Solution, Marcel Dekker, Inc., New York, 1985, p. 566.
Subramania A., Sathiya Priya R., Saminathan K. and Muralidharan, V.S., Vasudevan, T., Aldimines-effective corrosion inhibitors for mild steel in hydrochloric acidsolution, J. Applied Electrochem., 34 (7), 693-696 (2004)
Saithya Priya R., Muralidharan V.S. and Subramania A.,Development of Novel Acidizing Inhibitors for Carbon Steel Corrosion in 15% Boiling Hydrochloric Acid, Corrosion, 64 (6), 541-552 (2008)