Synthesis and Corrosion Resistance Study of Anion-Doped Salicylate Polypyrrole Films on Carbon Steel Substrates
Main Article Content
Abstract
Polypyrrole (PPy) films were synthesized by electrochemical methods using a stabilization technique in a 0.1M sodium salicylate solution and a 0.1M pyrrole monomer. Scanning electron microscopy was used to observe the film's morphology. The films appeared homogeneous and adhered well to the low-carbon steel substrate. FTIR (Flash Infrared) spectroscopy showed that the salicylate-doped PPy film formed on the steel exhibited typical polypyrrole and sodium salicylate spectra. Thermogravimetric analysis (TGA) supported the thermal properties of PPy. The improved corrosion protection of PPy was demonstrated by the polarization and electrochemical impedance spectra.
Keywords
Polypyrrole, corrosion protection, low-carbon steel.
Article Details
References
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[10] S.A. Umoren and M.M. Solomon, “Protective polymeric films for industrial substrates: A critical review on past and recent applications with conducting polymers and polymer composites/nanocomposites”, Prog. Mater. Sci., 104, 380-450, 2019. DOI:
10.3390/cmd4010004.
[11] D. Sazou and P.P. Deshpande, “Conducting polyaniline nanocomposite-based paints for corrosion protection of steel”, Chem. Pap., 71 (2), 459-487, 2017. DOI: 10.1007/s11696-016-0044-0.
[12] Yunxiao Liu, Guoshuai Liu, Han Wang, Peng Wu, Qun Yan and Dimitris V.Vayenas, “Elongation the duration of steel anode with polypyrrole modification during the electrocoagulation treatment process of electroplating wastewater”, Journal of Environmental Chemical Engineering, Volume 9, Issue 2, 104969, 2021. DOI: 10.1016/j.jece.2020.104969.
[13] Ha Manh Hung, Duong Khanh Linh, Nguyen Thuy Chinh, Le Minh Duc and Vu QuocTrung, “Improvement of the corrosion protection of polypyrrole coating for CT3 mild steel with 10-camphorsulfonic acid and molybdate as inhibitor dopants”, Progress in Organic Coatings, Volume 131, 407-416, 2019. DOI: 10.1016/j.porgcoat.2019.03.006.
[14] Maryam Kahvazi Zadeh, Mahdi Yeganeh, Mohammadrez, Tavakoli Shoushtari and Amirhossein Esmaeilkhanian, “ Corrosion performance of polypyrrole-coated metals: A review of perspectives and recent advances”, Synthetic Metals, 274, 116723, 2021. DOI: 10.1016/j.mtcomm.2022.103502.
[15] Y Yin, M Prabhakar, P Ebbinghaus, CC da Silva and M Rohwerder, “Neutral inhibitor molecules entrapped into polypyrrole network for corrosion protection”, Chemical Engineering Journal, Volume 440, 135739, 2022. DOI: 10.1016/j.cej.2022.135739.
[16] Lại Thị Hoan và Trần Thúy Nga, “Nghiên cứu sự ảnh hưởng của dung môi đến quá trình tổng hợp nano composite SiO2/PP”, Tạp chí Khoa học Giao thông vận tải, T72 (3), 251-263, 2021. DOI: 10.47869/tcsj.72.3.2.
[17] Ryu, H, Sheng, N, Ohtsuka, T, Fujita, S and Kajiyama, H, “PPy film on 55% Al-Zn-coated steel for corrosion prevention”, Corros Sci, 56, 67-77, 2012. DOI: 10.1016/j.corsci.2011.10.012.
[18] Plieth, W, Bund, A, Rammelt, U, Neudeck, S and Duc, LM, “The role of ion and solvent transport during the redox process of conducting polymers”, Electrochim Acta, 51 (11), 2366–2372, 2006. DOI: 10.1016/j.electacta.2005.03.087.
[19] P.J. Kinlen, D.C. Silverman and C.R. Jeffreys, “Corrosion protection using polyanujne coating formulations”, Synth. Met., 85 (1-3), 1327-1332, 1997. DOI: 10.1016/S0379-6779(97)80257-3.
[20] G. Paliwoda-Porebska, M. Stratmann, M. Rohwerder, K. PotjeKamloth, Y. Lu, A.Z. Pich and H.-J. Adler, “On the development of polypyrrole coatings with self-healing properties for iron corrosion protection”, Corros. Sci., 47 (12), 3216-3233, 2005. DOI: 10.1016/j.corsci.2005.05.057.
[21] M. Rohwerder and A. Michalik, “Conducting polymers for corrosion protection: What makes the difference between failure and success?”, Electrochim. Acta, 53, 1300-1313, 2007. DOI: 10.1016/J.PMATSCI.2019.04.002.