Akademik Veri Yönetim Sistemi
Applications of Chemistry in Nanosciences and Biomaterials Engineering NanoBioMat 2025 – Winter Edition, Bucuresti, Romanya, 26 - 28 Kasım 2025, ss.64, (Özet Bildiri)
In this study, polyvinyl alcohol (PVA), chitosan (CS), and graphene oxide (GO) were used to fabricate the coating solution applied onto ST37 marine steel via the dip coating method. GO contributes to the improvement of mechanical stability and barrier performance due to its layered structure, while chitosan provides biocompatibility and antibacterial activity [1]. PVA, acting as a polymeric binder, ensures film integrity and homogeneity. The synergistic effect of these components was observed during the study. The 5% (w/v) PVA solution was prepared by dissolving PVA in distilled water at 80 °C under continuous magnetic stirring until complete homogenization. Separately, the 2% (w/v) CS solution was prepared in 1% acetic acid. The two polymeric solutions were then blended in different ratios (80:20, 70:30, 60:40, and 50:50), followed by the addition of GO in varying concentrations (0.5%, 1%, 1.5%, and 2% w/v) [2]. The GO amount was carefully adjusted to remain below cytotoxic levels [3,4]. After thorough mixing, the prepared solutions were deposited onto ST37 steel substrates and dried to form uniform thin films. Preliminary evaluations show that the PVA/GO/CS system forms a uniform and adherent coating on ST37, which demonstrates improved durability under marine conditions. This strategy represents a sustainable and effective alternative to conventional coatings that often contain toxic components harmful to marine ecosystems. Consequently, this work highlights the potential application of PVA/GO/CS coatings as next-generation, eco-friendly protective systems for marine steels.