Evaluation of the Thermal properties of Epoxy-Agro waste (Egg shell and Palm kernel shell) Nanoparticle coating for Mild Steel

Abstract

Epoxy has been widely used as a coating material to protect the steel reinforcement in concrete structures, because of its outstanding processability, excellent chemical resistance, good electrical insulating properties, and strong adhesion/affinity. The major disadvantage raised from exothermic curing reaction of highly crosslinked epoxy matrix is brittleness and microcracks that change the epoxy coating performances. The barrier performance of epoxy coatings can be enhanced by the incorporation of inorganic filler particles at nanometer scale which can be dispersed within the epoxy resin matrix to form an epoxy nanocomposite. The parametric addition of eggshell ash nanoparticles (ESAnp) and palm kernel shell ash nanoparticle (PKSAnp) in epoxy for the coating of mild steel was studied. Thermal decomposition was observed in terms of global mass loss by using a TGA Q50 thermogravimetric analyzer. Improvement of 78.05% and 82.56% thermal properties were obtained for the epoxy-4wt%ESAnp and epoxy-5wt%PKSAnp at 1000°C. This work showed that epoxy-4wt%ESAnp and epoxy-5wt%PKSAnp have best properties for thermal applications.

Keywords

• Mild Steel
• Epoxy
• Nanoparticles
• Palm kernel shell ash
• Egg shell ash
• Thermal properties

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