Graphene coating on mild steel by spin coating method

Abstract

Mild steel is one of the main construction resources used in the industries as it consists of light weight. It has a young modulus of 200GNm-2. Mild steel consist of low content of carbon approximately 0.05% to 0.25% carbon. It consists of low quantity of carbon percentage it is corroded easily by exposing corroding atmosphere. In this work graphene derived products were produced after synthesizing graphene oxide via modified Hummers method by using natural graphite. The obtained graphene after reduction (RGO) was dispersed in DMF (di-methyl formaldehyde) to get a coating solution sometimes solutions with binders for good adherent film onto the substrate surface. In this study I use the binder like polyvinyl alcohol (PVA) coated solution for coating the substrate. The substrate material properties remain the same as coatings of grapheme. They are extremely thin whether they form mono or multi layers on it. The inertness of graphene in various atmospheres makes it strong and is a good barrier to movement of gases through it. Hence graphene films inhibit corrosion. In the present investigation the mild steel substrates were coated with graphene using spin coating techniques. Prepared graphene oxide and reduced graphene oxide is characterized by using X-ray diffraction and Raman spectroscopy and FESEM analysis .The coated mild steel is analysed by SEM analysis.