Encouragement of Graphite and Graphene Oxide Particles on Corrosion Protection Properties for Polyurethane Palm Oil Based UV Curable Coating

Abstract

This research explores the impact of derivative graphite additives in enhancing the corrosion prevention system of UV curable polyurethane coatings based on palm oil. UV irradiation technique was used in this study to produce cured protection coating. Two types of particles, respectively graphite and graphene oxide were used to understand the differential of both particles in physicomechanical behaviour of the curable coating. The study delves into the formulation and characterization of these coatings, assessing their effectiveness in preventing corrosion. The polymerisation effect by UV irradiation and influence of filler (graphene oxide and graphite) on physical properties of coating were studied by using Fourier Transform Infrared Spectroscopy (FTIR) and gel content together with hardness test. Besides that, X-ray Diffraction (XRD) and Field emission scanning electron microscopy (FESEM) were used to investigate the morphology of curable coating. Meanwhile Electro impedance spectroscopy (EIS) and contact angle measurement were carried out to investigate the related behaviour on corrosion protection properties. All the results were concluded to explain the role of graphite and graphene oxide in curable coating crosslink network. The finding in this study indicates that tortuosity structured which formed by graphite and graphene oxide in UV curable coating matrix were successfully retard corrosion rate per year on mild steel from 31.24 mpy to 43.91 x 10-6 mpy. This work aims to provide valuable insights into the development of eco-friendly and efficient corrosion protection solutions in the realm of coatings and materials science.