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

Year 2021, , 179 - 182, 01.10.2021

Maureen Oisakede

https://doi.org/10.34248/bsengineering.910691

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

References

• Akash GKG, Venkatesha GNS, Sreenivas KVR. 2017. A study on flammability and moisture absorption behavior of sisal/coir fiber reinforced hybrid composites, IOP Conf. Series: Materials Sci and Eng, 191: 012003.
• Ayman M, Atta HAA, Ashraf ME, Ahmed MT, Mohamed HW. 2017. Effect of titanium dioxide nanogel surface charges and particle size on anti-corrosion performances of epoxy coatings. Int J Electrochem Sci, 12: 959-974.
• Bagherzadeh MR, Mahdavi F. 2007. Preparation of epoxy- clay nanocomposite and investigation on its anti-corrosive behavior in epoxy coating. Prog in Organic Coating, 60(2): 117-120.
• Chanadee T, Chaiyarat S. 2016. Preparation and characterization of low cost silica powder from sweet corn cobs (Zea mays saccharata L.), J Mater Environ Sci, 7(7): 2369-2374.
• Dagwa IM, Builders PF, Achebo J. 2012. Characterization of palm kernel shell powder for use in polymer matrix composites. Int J Mechanical and Mechatronics Eng, 12(4): 88-93.
• Ehsan B, Ali J, Zahra R, Sarah S, Mohammad RS. 2014. Anti-corrosion hybrid coatings based on epoxy–silicanano-composites: Toward relationship between the morphology and EIS data. Prog in Organic Coatings, 77(7): 1169-1183.
• Hussain M, Dendena TL, Yusup S, Zabiri H. 2019. Thermochemical behavior and characterization of palm kernel shell via TGA/DTG technique. Materials Today: Proceedings, 16: 1901–1908. DOI: 10.1016/j.matpr.2019.06.067.
• Lu CH, Jagannathan R. 2002. Cerium-ion-doped yttrium aluminum garnet nanophosphors prepared through sol-gel pyrolysis for luminescent lighting. App Physics Lett, 80(19): 3608-3610.
• Nwaobakata C, Agunwamba JC. 2014. Effect of palm kernel shells ash as filler on the mechanical properties of hot mix asphalt. Archives of App Sci Res, 6(5): 42-49.