Volume 6, Issue 3, June 2018, Page: 102-125
Nano Composite Polymer Resin Coating to Control Mild Steel Corrosion in Marine Environment
Athira Rajendran, Department of Sciences, Amrita School of Engineering, Coimbatore, India
Thenmozhi Sivalingam, Department of Chemistry, PSG College of Technology, Coimbatore, India
Poongothai Narayanan, Department of Sciences, Amrita School of Engineering, Coimbatore, India
Salem Chandrasekaran Murugavel, Department of Chemistry, PSG College of Technology, Coimbatore, India
Received: May 22, 2018;       Accepted: Jun. 12, 2018;       Published: Jul. 27, 2018
DOI: 10.11648/j.ajac.20180603.14      View  458      Downloads  34
Abstract
The present study was carried out to analyze the performance of anti-corrosion property for the combination of PMMA, resin and ZnO nano particle coating on mild steel in 3.5% NaCl medium at 3hrs, 6hrs and 12hrs exposure. The synthesized nano particle was characterized by FTIR, XRD and SEM analysis. The Polymer +Resin +ZnO (PRZn) combination was coated on MS by dip and spin coating methods. The optimized concentration analyses were verified by visual observation and gravimetric method which were also confirmed by electrochemical studies such as Tafel, AC impedance studies and cyclic voltammetry studies and 10% PMMA and 10% PMMA-resin combination was identified as optimum concentration. So, 10% PMMA-resin combined with 0.1g ZnO was used for further studies and coated on MS and PRZn coating offered almost cent percent corrosion protection of MS upto 12hrs exposure in 3.5% NaCl. PRZn coating was characterized by using FTIR, XRD, Zeta potential measurements and thermal stability was analyzed by thermo gravimetric methods. The high I.E offered by the coating material was due to the presence of major constituents that forms a passive film on the metal surface that protects mild steel from corrosion was identified. Profilometer analysis shows that the thickness and roughness of polymer coated specimen is less than paint coated one. Zeta potential and contact angle measurements of the combination coating material shows a protection against corrosion due to more interfacial tension and reduced size of the particles on the metal surface.
Keywords
PMMA, Resin, ZnO Nano Particle, Mild Steel, Inhibition Efficiency
To cite this article
Athira Rajendran, Thenmozhi Sivalingam, Poongothai Narayanan, Salem Chandrasekaran Murugavel, Nano Composite Polymer Resin Coating to Control Mild Steel Corrosion in Marine Environment, American Journal of Applied Chemistry. Vol. 6, No. 3, 2018, pp. 102-125. doi: 10.11648/j.ajac.20180603.14
Copyright
Copyright © 2018 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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