Novel Sustainable Polymeric Coatings for Protection of Copper and Steel Alloys from Metal Deterioration

Abdullatef, Ossama; Megahed, Mohamed; Kamal, Mohamed; Esmail, Ghada; Anwar, Shereen

doi:10.21608/ejchem.2024.310747.10164

Novel Sustainable Polymeric Coatings for Protection of Copper and Steel Alloys from Metal Deterioration

Document Type : Original Article

Authors

¹ Alexandria University

² Head of Restoration and Conservation of Archaeology, Faculty of Archaeology, Fayoum University

³ Professor at Conservation Department, Faculty of Archaeology, Fayoum University

⁴ Lecturer, Chemistry Department, Faculty of Science, Damnhour University

⁵ Conservation Department, Faculty of Archaeolgy, Fayoum University

10.21608/ejchem.2024.310747.10164

Abstract

New protective transparent polymeric coatings were used in this study based on the presence of 3-(Trimethoxysilyl)propyl methacrylate (TMSPMA); Vinyl chloride vinyl acetate copolymer (VCVACO); Ormocer; Nitrosal (Hydroxy ethyl cellulose HEC) as polymers, to protect copper and iron alloys from corrosion. The protection efficiency of these polymeric coatings on copper and iron alloys, was measured by electrochemical impedance spectroscopy (EIS) technique. The electrochemical results were confirmed by scanning electron microscopy (SEM) technique. The results showed that vinyl chloride-vinyl acetate copolymer and trimethoxysilyl-propyl methacrylate can be used as protective coatings for copper alloys due to their high protection efficiency 98 and 92 %, respectively. While, ormocer polymeric coating showed mild protection efficiency for copper alloys, with protection efficieny 57.7 %. Vinyl chloride vinyl aetate copolymer showed the highest protection efficiency for iron alloys, 91.6 %. While, 3-(trimethoxysilyl)propyl methacrylate showed only 75.9 % protection efficiency. On the other hand, nitrosal did not show any protection behavior against corrosion for both copper and iron alloys.

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