EIS study of epoxy paints in two different corrosive environments with a new filler: rice husk ash

Journal: Vol.9, No.1, Winter 2016 - Article 6   Pages :  53 Until 60

Article Code:

Mahboobeh Azadi: Semnan University - Faculty of Materials and Metallurgical Engineering
Mohammad javad Olya: Semnan University - Faculty of Materials and Metallurgical Engineering
Mohammad ebrahim Bahrololoom: Shiraz University - Department of Material Science and Engineering,

Article's abstract:

In this paper, the corrosion behavior of the filled epoxy paint with the rice husk ash RHA on steel substrates in two different corrosive environments natural sea water and 2M sulfuric acid has been studied. Electrochemical impedance spectroscopy EIS was used to evaluate protective properties of different organic coating systems due to the different filler composition. RHA was prepared by heating rice husk at 700 º C for 3 hours. By adding RHA, as a new and natural filler, to the epoxy paint, the resistance to penetration of the solution was increased in both environments. The best filler for the sea water was the white RHA contained more silica in 20 wt. due to increasing the corrosion resistance for 3 times with respect to the unfilled epoxy paint. The black RHA contained more carbon- group increased the corrosion resistance of the epoxy paint in sulfuric acid when added in 20 wt.

EIS, epoxy paint, rice husk ash, sea water, acidic solution, corrosion.

[1]M. Azadi, M. E. Bahrololoom F. Heidari, Enhancing the mechanical properties of an epoxy coating with rice husk ash, a green product, J. Coat. Technol. Res., 8 (2011), 117-123. [2] M. Rohwerder, A. Michalik, Conducting polymers for corrosion protection: What makes the difference between failure and success, Electrochim.Acta, 53 (2007), 1300-1313. [3] S. Skale, V. Dolecek, M. Slemnik, Electrochemical impedance studies of corrosion protected surfaces covered by epoxy polyamide coating systems, Prog. Org. Coat., 62 (2008), 387-392. [4] Z. Ranjbar, S. Moradian, M. R. Mohammad Zade Attar, EIS investigation of cataphoretically electrodeposited epoxy coatings having different EEWs, Prog. Org. Coat., 51(2004), 87-90. [5] T. Anh Truc, T. Thi Xuan Hang, V. Ke Oanh, E. Dantras, C. Lacabanne, D. Oquab, N. Pébère, Incorporation of an indole-3 butyric acid modified clay in epoxy resin for corrosion protection of carbon steel, Surf. Coat. Technol., 202 (2008), 4945–4951. [6] X. Hang Yang, W. Zhu, Z. Lin , J. Jin Huo, Aerodynamic evaluation of an internal epoxy coating in nature gas pipeline, Prog. Org. Coat., 54 (2005), 73-77. [7] V.C. Malshe, G. Waghoo, Weathering study of epoxy paints, Progress in Organic Coat., 51(2004),172-180. [8] S. A. Kumar,T. B., M. Alagar , Z. Denchev, Development and characterization of silicone/phosphorus modified epoxy materials and their application as anticorrosion and antifouling coatings, Prog. Org. Coat., 55(2006), 207-217. [9] S. Ahmad, A.P. Gupta, E. Sharmin, M.Alam, S.K. Pandey, Synthesis, characterization and development of high performance siloxane-modified epoxy paints, Prog. Org. Coat., 54(2005), 248-255. [10] P. Chindaprasirt, S. Rukzon, Strength, porosity and corrosion resistance of ternary blend Portland cement, rice husk ash and fly ash mortar, Cons. Building Mater., 22(2008), 1601-1606 [11] P. Chindaprasirt C. Jaturapitakkul, U. Rattanasak, Influence of fineness of rice husk ash and additives on the properties of lightweight aggregate ,Fuel, 88(2009),158-162. [12] M.R.F. Goncalves , C.P. Bergmann , Thermal insulators made with rice husk ashes: Production and correlation between properties and microstructure", Cons. Building Mater., 21(2007), 2059-2065. [13] J.M. Sanchez-Amaya, R.M. Osuna, M. Bethencourt , F.J. Botana, Monitoring the degradation of a high solids epoxy coating by means of EIS and EN, Prog. Org. Coat., 60 (2007), 248-254. [14] E. Akbarinezhad, M. Bahremandi, H.R. Faridi, F. Rezaei, Another approach for ranking and evaluating organic paint coatings via electrochemical impedance spectroscopy, Corr. Sci., 51(2009), 356-363. [15] G. Bierwagen, D. Tallman, J. Li, L. He, C. Jeffcoate, EIS studies of coated metals in accelerated exposure, Prog. Org. Coat., 46 (2003), 148–157. [16] J.B. Bajat , V.B. Miˇskovi ´Stankovi ´, J.P. Popi´, D.M. Draˇzi , Adhesion characteristics and corrosion stability of epoxy coatings electrodeposited on phosphated hot-dip galvanized steel, Prog. Org. Coat., 63(2008), 201-208. [17] Y. Shao, C. Jia, G. Meng, T. Zhang, F.Wang, The role of a zinc phosphate pigment in the corrosion of scratched epoxy-coated steel ,Corr. Sci., 51(2009), 371-379. [18] P.H. Suegama, A.A.C. Recco, A.P. Tschiptschin, I.V. Aoki, Influence of silica nanoparticles added to an organosilane film on carbon steel electrochemical and tribological behavior, Prog. Org. Coat., 60(2007), 90–98. [19] J.Tao Zhang, J.Ming Hu, J.Qing Zhang, C.Nan Cao, Studies of water transport behavior and impedance models of epoxy-coated metals in NaCl solution by EIS, Prog. Org. Coat., 51(2004), 145–151.

Article's file
Page view: 1673
Article's download quantity : 36

Article System Login

Prof. Zahra Ranjbar
Dr. Farahnaz Nourmohammadian
Assistant Editor:
Dr. Mozhgan Hosseinnezhad
ISSN (online):
Institute for Color Science and Technology (ICST)

Quick Access
What is your opinion about the manuscript subscription system of PCCC website?
Website Statistics
Page view:1,674
Online Visitors:35