Investigation of Various Coating Resins for Optimal Anticorrosion and Mechanical Properties of Mild Steel Surface in NaCl Solution

Abstract

The primary objective of the research was to investigate the ideal resin coating on the mild steel surface among various resin coatings which are in use. These resin coatings are used as an anti-corrosive material for mild steel surfaces with enhanced mechanical properties. The resins (epoxy, polyurethane, polyester, and phenolic) on mild steel surface were applied by the pneumatic spray coating method. In addition, immersion test and salt spray test methods were followed using sodium chloride (NaCl) solution. Furthermore, the rate of corrosion and mechanical properties of mild steel coated with different resins was evaluated by conducting various experiments (immersion test, salt spray test, tensile strength test, and scratch hardness test) and was compared with a bare mild steel surface. The results of the current research showed that the mild steel surface coated with epoxy resin was found to be the most effective corrosion resistance material with better mechanical properties compared to other tested mild steel resin-coated surfaces.

Analytical Review of Conductive Coatings, Cathodic Protection, and Concrete

“…Secondly, the epoxy coating functions as a highresistance coating, decreasing corrosion by raising electrical resistance between nearby coated steel sites where cathodic reactions can occur [33].…”

“…Gujjar SV et al [33] looked into the best resin coating among the ones currently in use for mild steel surfaces. The resins such as polyurethane, epoxy, phenolic, and polyester) were applied to the mild steel surface using pneumatic spray coating.…”

“…A polyamide hardener is used to cure the two-component epoxy clear lacquer known as FINECOAT-EP 200. Epoxy resin is considered the ideal resin used for coating mild steel surfaces to block corrosion and improve mechanical properties [33].…”

A State-of-the-Art Review of Graphene-Based Corrosion Resistant Coatings for Metal Protection

“…Corrosion is a principle challenge to industries as it causes structural weakness, reduced bond strength, ductility, and shear capacity of metal [16]. According to international studies, the reports indicates that overall cost of corrosion that happens interms of loss of metal as a result of corrosion is at least four to five percent of the gross national product (GNP), and out of this 20 to 25 % loss can be saved using efficient and correct corrosion prevention technology [17].…”

Revealing the Impact of Micro-SiO2 Filer Content on the Anti-Corrosion Performance of Water-Borne Epoxy Resin

“…Epoxy networks have been widely used in coatings among different thermosetting networks, and approximately 90% of metallic materials are protected by organic coatings to provide physical barriers against corrosion [ 9 , 10 ]. At present, polyurethane, phenolic resin, acrylic acid, and epoxy resin are commonly used anticorrosive coatings [ 11 , 12 , 13 , 14 , 15 ]. It is important to note that anticorrosive pigments are composed of various volatile organic compounds (VOCs) which may ingress into the environment during the production, application, or curing of the solvent-based coating formulations [ 16 ].…”