Blucher Chemistry Proceedings

Junho 2014, vol.2, num.3 - 1st International Seminar on Industrial Innovation in Electrochemistry
Artigo Completo - Open Access Idioma principal | Segundo principal

Corrosion protection of AA-7075 aluminum alloy surface by poly(o-methoxyaniline)

Corrosion protection of AA-7075 aluminum alloy surface by poly(o-methoxyaniline)

Moraes, Sandra R.; Bisanha, Leandro D.; Mattenhauer, Fábio A.; Motheo, Artur J.

Artigo Completo:

This work analyzes the corrosion protection of the aluminum alloy AA-7075-T6 by poly-o-methoxyaniline (POMA) films, deposited by casting solution. The potentiodynamic polarization curves obtained in 0.6 mol L-1 NaCl solution indicate protective characteristics of POMA compared to polyaniline (PAni), indicating superior barrier properties. Open circuit potential measurements in NaCl solution and salt spray tests also confirm the efficiency of POMA films in the protection of alloy. POMA films demonstrate appreciable corrosion resistance during the exposition in salt spray, protecting the metallic surface for up to 200 h.

This work analyzes the corrosion protection of the aluminum alloy AA-7075-T6 by poly-o-methoxyaniline (POMA) films, deposited by casting solution. The potentiodynamic polarization curves obtained in 0.6 mol L-1 NaCl solution indicate protective characteristics of POMA compared to polyaniline (PAni), indicating superior barrier properties. Open circuit potential measurements in NaCl solution and salt spray tests also confirm the efficiency of POMA films in the protection of alloy. POMA films demonstrate appreciable corrosion resistance during the exposition in salt spray, protecting the metallic surface for up to 200 h.

Download (PDF)

Palavras-chave:

DOI: 10.5151/chempro-s3ie-11

Referências bibliográficas
  • [1] Z Szklarska-Smialowska, Corr. Sci. 41, 9, (1999) 1743.
  • [2] Z Szklarska-Smialowska, Corr. Sci. 44, 5, (2002) 1143.
  • [3] Comotti, IM, M Trueba, SP,Trasatti, Surf. Interface Anal., 45,10, (2013) 1575.
  • [4] F Andreatta, H Terryn, JHW Wit, Electrochim. Acta. 49, 17-18, (2004) 2851.
  • [5] P Hidalgo-Manrique, CM Cepeda-Jimenez, A Orozco-Caballero, OA Ruano, F Carreno. J Mater Sci, 49, (2014) 833.
  • [6] S Sathiyanarayanan, SK Dhawan, DC, Trivedi, K. Balakrishnan, Corros. Sci. 33, 12, (1992), 1831.
  • [7] WK, Lu, RL, Elsenbaumer, B Wessling, Synth. Met. 71, 1-3, (1995) 2163.
  • [8] BD Mert, B Yazici, SB Lyon, Corros. Eng., Sci. Technol., 48, 7, (2013), 506.
  • [9] M Fahlman, S Jasty, AJ Epstein, Synth. Met. 85, 1-3, (1997) 1323.
  • [10] JR Santos Junior, LHC Mattoso, AJ Motheo, Electrochim. Acta, 43, 3-4, (1998) 309.
  • [11] DE Tallman., Pae Y, Bierwagen G.P. Corrosion, 55, 8, (1999) 779.
  • [12] PJ Kinlen, DC Silverman., CR. Jeffers, Met. 85, 1-3, (1997) 1327.
  • [13] S Chaudhari, AB Gaikwad, PP Patil, Curr. Appl. Phys., 9, 1, (2009) 206.
  • [14] SK Dhawan., DC Trivedi, J. Appl. Polym. Sci., 58, 4, (1995) 815
  • [15] R Vera, H Romero, YE Ahumada, J. Chil. Chem. Soc., 48, 1, (2003) 35.
  • [16] PA Kilmartin, L Trier, GA Wright, Synth. Met., 131, 1-3, (2002) 99.
  • [17] S Chaudhari, AB Mandale, KR Patil, SR Sainkar, PP Patil, Surf. Coat. Technol. 200, 18-19, (2006) 5557.
  • [18] S Chaudhari, KR Sainkar, PP Patil. J, Phys. D. Appl. Phys. 40, 2, (2007) 520.
  • [19] MG Wankhede, SA Gangal, PP Patil, Corros. Eng., Sci. Technol. 40, 2, (2005) 121.
  • [20] K Shah, J Iroh, Adv. Polym. Techn, 23, 4, (2004) 291.
  • [21] RL Twite, GP Bierwagen, Prog. Org. Coat., 33, 2, (1998) 91.
  • [22] D Huerta-Vilca,. SR Moraes, AJ Motheo, J. Solid State Electrochem. 9, 6, (2005) 416.
  • [23] D Huerta-Vilca,. SR Moraes, AJ Motheo, Synth. Met. 140, 1, (2004) 23.
  • [24] D Huerta-Vilca, SR Moraes, AJ Motheo, J. Appl. Electrochem. 33, 5, (2003) 355.
  • [25] D Huerta-Vilca, SR., Moraes, AJ Motheo, J. Appl. Polymer Sci. 90, 3, (2003) 819.
  • [26] D Huerta-Vilca, SR Moraes, AJ Motheo,. J. Braz. Chem. Soc. 14, 1, (2003) 52.
  • [27] AJ Epstein, JAO Smallfield, H Guam, M Fahlman, Synth. Met. 102, 1-3, (1999) 1374.
  • [28] SK Manohar, AG MacDiarmid, Synth. Met. 41, 1-2, (1991) 711.
  • [29] ABNT Tintas. Determinação de aderência NBR 11003. ABNT (1990), Rio de Janeiro
  • [30] XG Li, LX, Wang, MR Huang, YQ Lu, MF Zhu, A Menner, Springer, J. Polymer, June, 42, 14, (2001) 6095.
  • [31] MJ Rahman, AH Bhuiyan, Thin Solid Films, 534, (2013) 132.
  • [32] J Tang, X Jing, B Wang, F Wang, Infrared spectra of soluble polyaniline. Synth. Met. 24, 3, (1988) 231.
  • [33] AJ Motheo, MF Pantoja, EC. Venancio, Solid State Ionics, 171, 1-2, (2004) 91.
  • [34] HS Nalwa, Handbook of organic conductive Molecules and Polymers, vols.1-4, New York, Wiley, (1997).
  • [35] A Sankar, V Ragunathan, K Mohankumar, Asian J. Chem., 23, 6 (2011) 2673.
  • [36] X Wang, S Ray, M Gizdavic-Nikolaidis, AJ Easteal, J. Polym. Sci., Part A: Polym. Chem., 50, 2 (2012) 353.
  • [37] D Huerta-Vilca,. B Siefert, SR Moraes, MF Pantoja, AJ Motheo, Mol. Cryst. Liq. Cryst. 415, (2004) 387.
  • [38] GO Ilevbare, JR Scully, J Yuan, RG. Kelly, Corrosion, 56, 3, (2000) 227.
Como citar:

Moraes, Sandra R.; Bisanha, Leandro D.; Mattenhauer, Fábio A.; Motheo, Artur J.; "Corrosion protection of AA-7075 aluminum alloy surface by poly(o-methoxyaniline)", p-97-108. In: In Proceedings of the 1st International Seminar on Industrial Innovation in Electrochemistry [=Blucher Chemistry Proceedings]. São Paulo: Blucher, 2014. São Paulo: Blucher, 2014.
ISSN 23184043, DOI 10.5151/chempro-s3ie-11

últimos 30 dias

148
downloads

228
visualizações

834
indexações