Novel Electrochemical Behavior of Organic Polymer Coating in Alkaline Solution

Abstract:

The semiconducting behavior of No.20 carbon steel coated with different polymer coating in 5% sodium hydroxide solution was studied by utilizing potential-capacitance and Mott-Schottky analysis. Results showed that the phenol aldehyde resin and alkyd resin behaved as bipolar film, showed p-type semiconducting behavior at the potential range of -0.3V ~ -0.1V vs. SCE and as an n-type semiconductor at the potential range of 0V ~ 0.4V vs. SCE in 5% sodium hydroxide, whereas for the epoxy resin, it showed as an insulator in 5% sodium hydroxide solution at the same condition.

• Periodical: Advanced Materials Research (Volumes 399-401)
• Pages: 1962-1966
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.399-401.1962
• Online since: November 2011
• Authors: Long Biao Zhu, Wei Dong Liu, Qing Dong Zhong
• Keywords: Alkaline, Corrosion, Polymer Coatings, Semiconducting, Steel

References

[1] Grundmeier G, Schmidt W, Stratmann M, Corrosion protection by organic coatings: electrochemical mechanism and novel methods of investigation, Electrochimica Acta, 2000, 45(15-16): 2515-2533

DOI: 10.1016/s0013-4686(00)00348-0

[2] Stromberg C, Thissen P, Klueppel I, Fink N, Grundmeier G, Synthesis and characterisation of surface gradient thin conversion films on zinc coated steel, Electrochimica Acta, 2006, 52(3): 804-815

DOI: 10.1016/j.electacta.2006.06.014

[3] Wielant J, Goossens V, Hausbrand R, Terryn H, Electronic properties of thermally formed thin iron oxide films, Electrochimica Acta, 2007, 52(27): 7617-7625

DOI: 10.1016/j.electacta.2006.12.041

[4] Klimow G, Fink N, Grundmeier G, Electrochemical studies of the inhibition of the cathodic delamination of organically coated galvanised steel by thin conversion films, Electrochimica Acta, 2007, 53(3): 1290-1299

DOI: 10.1016/j.electacta.2007.05.045

[5] Herlem G, Monney S, Blondeau-Patissier V, Fahys B, Gharbi T, Electrocatalyzed synthesis of polypeptides on platinum surface in concentrated glycine electrolytes and ab initio calculations coupled to spectroscopic analysis, Electrochimica Acta, 2009, 54(27): 6797-6802

DOI: 10.1016/j.electacta.2009.06.051

[6] Zhong Qing-dong, Potential variation of a temporarily protective oil coating before its degradation, Corrosion Science, 2001, 43(2): 317-324.

DOI: 10.1016/s0010-938x(00)00073-1

[7] Zhong Qing-dong, Xu Nai-xin, Zhou Guo-Ding, Rohwerder M, Electronic-ionic conducting transition of temporarily protective oil coating in salt solution, Werkstoffe und Korrosion, 2003, 54(2): 97-105.

DOI: 10.1002/maco.200390028

[8] Zhong Qing-dong, Rohwerder M, Zhang Zhao, Zheng Jin, Semiconducting behavior of temporarily protective oil coating on the surface of AISI 304 Stainless Steel in 5% Na2SO4 solution during its degradation, J. Electrochem. Soc., 2004, 151(7): B446-B452.

DOI: 10.1149/1.1756889

[9] Wang Chao, Sheng Min-qi, Zhong Qing-dong, Chou Kuo-chih, Lu Xiong-gang. Ionization behavior of deep level donors in passive film formed on surface of stainless steel in 5% salt solution, J. Cent. South Univ. Technol., 2010, 17: 295-299.

DOI: 10.1007/s11771-010-0045-z

[10] Zhong Qing-dong, Wang Chao, Lu Xiong-gang, Shi Li-Yi, Chou Kuo-Chih, Semiconducting Behavior of Carbon Steel in Electrolyte Solution, The Open Corrosion Journal, 2008, 1: 1-5.

DOI: 10.2174/1876503301009010001