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Theoretical and Electrochemical Studies of the Coating Behavior of a New Epoxy Polymer: Hexaglycidyl Ethylene of Methylene Dianiline (HGEMDA) on E24 Steel in 3.5% NaCl

Rachid HsissouLaboratory of Agro Resources, Polymers and Process Engineering (LAPPE), Team of Organic and Polymer Chemistry (TOCP), Department of Chemistry, Faculty of Sciences, Ibn Tofail University, P.O. Box 133, 14000, Kenitra, MoroccoAtiqa BekhtaLaboratory of Agro Resources, Polymers and Process Engineering (LAPPE), Team of Organic and Polymer Chemistry (TOCP), Department of Chemistry, Faculty of Sciences, Ibn Tofail University, P.O. Box 133, 14000, Kenitra, MoroccoAhmed ElharfiLaboratory of Agro Resources, Polymers and Process Engineering (LAPPE), Team of Organic and Polymer Chemistry (TOCP), Department of Chemistry, Faculty of Sciences, Ibn Tofail University, P.O. Box 133, 14000, Kenitra, MoroccoBouchra BenzidiaLaboratory of Materials, Electrochemistry and Environment, Team of Corrosion, Protection and Environment, Department of Chemistry, Faculty of Sciences, Ibn Tofail University, P.O. Box 133, 14000, Kenitra, MoroccoNajat HajjajiLaboratory of Materials, Electrochemistry and Environment, Team of Corrosion, Protection and Environment, Department of Chemistry, Faculty of Sciences, Ibn Tofail University, P.O. Box 133, 14000, Kenitra, Morocco

2018en

ABI

Annotatsiya

The objective of our work is to study, develop, characterize and apply a new epoxy macromolecular matrix in coatings, and their optimization for the conservation of marine heritage. Epoxy resins are technologically and nano-technologically compatible thermosetting macromolecule matrices that are easy to implement, according to their structures, viscosimetric and rheological properties, for the protection of the heritage possibly subject to atmospheric corrosion. In this sense, we have tested the new macromolecular binder, hexaglycidyl ethylene of methylene dianiline (HGEMDA), crosslinked and formulated for studying the behavior of steel coatings in a marine environment. In order to evaluate HGEMDA coating performance, we have studied its adsorption behavior onto the surface of corroded steel, and explained the interactions between the coating macromolecule and the steel surface. The coating effect on E24 steel was studied by quantum chemical calculations. The adsorption of HGEMDA onto the surface of E24 steel has been well described by the Quantitative Structure of Relation Property model (QSPR). The stationary and transient electrochemical studies are very interesting, since the prediction of the coating behavior was performed by the semi-empirical PM6, DFT methods and the method of three Becke compounds of parameter (UB3LYP), based on 6-311 G. All our calculations were performed using Gaussian software (03).

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Identifikatorlar

DOI: 10.4152/pea.201802101

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