Berlin 2024 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 21: Poster II
CPP 21.2: Poster
Dienstag, 19. März 2024, 18:00–20:00, Poster E
Enhancement of the Protection Performance of Eco-friendly Polymers and Nanoparticles/Polymers Coated Copper Artifact in Synthesized Marine Environments — •Mai Diab1 and Wafaa Soliman2 — 1National Museum of Egyptian Civilization, Cairo, Egypt — 2National Institute of Laser enhancement Science, Giza, Egypt
Protective coatings based on eco-friendly polymers synthesized from renewable sources (chitosan or glycerol/chitosan polymer) have been prepared for copper artifacts protection from marine corrosion. In addition, the coating efficiency has been improved by adding a protective metal coating for copper as a corrosion inhibitor compound (ZnNi-nanoparticles) to the formulations. An accelerating corrosion test on coated copper substrates was performed to optimize the minimum amount of the inhibitor compound. Dipcoating technique was used to coat the copper specimen's surfaces. Chitosan coating was damaged when it was accelerated under marine corrosive conditions. To solve this problem, ZnNi nanoparticles were added to a chitosan-based solution. It was noticed that the significant addition of ZnNi improved the coating properties. The structural features of the coatings were evaluated by Raman spectroscopy. The surface hydrophobicity was investigated by contact angle measurements. The surface morphology changes of control and coated specimens prior to and after marine aging were evaluated by AFM and SEM. The results show that the 0.2 wt% ZnNi nanoparticles enhanced the efficiency, the mechanical hardness, and the roughness of the specimens.
Keywords: Eco-friendly Polymer; Chitosan; Metal Coatings; Zn Ni nanoparticles; Marine Corrosion