Anodic protection obtained by applying Smart Paint in Carbon Steel

Anodic protection obtained by applying Smart Paint in Carbon Steel

SILVA, R. S.; MAGGI, V.; FERREIRA, J. Z.; MENEGUZZI, A.

Artigo:

This work search introduce of a new alternative of organic coating without the presence of hazardous metals and replacement of commercial rectifiers used for protection of oxidized metals by the method of anodic protection. From this, was produced of a Smart Paint (SP), basically composed of a Paint Polyurethane Commercial (PPC) mixed with a 1% of binder de base PAni EB and plasticizer chemically inert 4-chloro-3-methylphenol. After, the SP and PPC were applied in plates of carbon steel, with the use of dip coat technique. SP was characterized by thermal analyzes and physicochemical beyond perform electrochemical tests of Cyclic Voltammetry (CV) and Open Circuit Potential (OCP), in aqueous solution 2 mol.L-1 H2SO4. The results obtained allow us to state that the application of the binder to the PPC not significantly alters their physicochemical properties, and that the binder adds the ability to induce the formation or maintenance of protective oxides in oxidized metals exposed to harsh environments.

This work search introduce of a new alternative of organic coating without the presence of hazardous metals and replacement of commercial rectifiers used for protection of oxidized metals by the method of anodic protection. From this, was produced of a Smart Paint (SP), basically composed of a Paint Polyurethane Commercial (PPC) mixed with a 1% of binder de base PAni EB and plasticizer chemically inert 4-chloro-3-methylphenol. After, the SP and PPC were applied in plates of carbon steel, with the use of dip coat technique. SP was characterized by thermal analyzes and physicochemical beyond perform electrochemical tests of Cyclic Voltammetry (CV) and Open Circuit Potential (OCP), in aqueous solution 2 mol.L-1 H2SO4. The results obtained allow us to state that the application of the binder to the PPC not significantly alters their physicochemical properties, and that the binder adds the ability to induce the formation or maintenance of protective oxides in oxidized metals exposed to harsh environments.

Palavras-chave:

DOI: 10.5151/chemeng-cobeq2014-0411-25637-144668

Referências bibliográficas

• [1] AKBARINEZHAD, E.; EBRAHIMI, M; FARIDI, H. R. Corrosion inhibition of steel in sodium chloride solution by undoped polyaniline epoxy blend coating. Prog. in Org. Coat., v. 64, n. 4, p. 361-364, 2009.
• [2] ALEMÁN, C.; FERREIRA, C. A.; TORRAS, J.; MENEGUZZI, A.; CANALES, M.; RODRIGUES, M. A. S.; CASANOVAS, J. On the molecular properties of polyaniline: a comprehensive theoretical study. Pol., v. 49, n. 23, p. 5169-5176, 2008.
• [3] Área temática: Engenharia de Materiais e Nanotecnologia 7ALVES, W.; VENANCIO, E. C.; LEITE, F. L.; KANDA, D. H. F.; MALMONGE, L. F.; MALMONGE, J. A.; MATTOSO, L. H. C. Thermo-analyses of polyaniline and its derivatives. Thermochim. Act., v. 502, n. 1-2, p. 43-46, 2010.
• [4] AMO, B.; ROMAGNOLI, R.; DEYÁ, C.; GONZÁLEZ, J. A. High performance water-based paints non-toxic anticorrosive pigments. Prog. in Org. Coat., v. 45, n. 4, p. 389-397, 2002.
• [5] BALDISSERA, A. F.; FERREIRA, C. A. Coatings based on electronic conducting polymers corrosion protection of metals. Prog. in Org. Coat., v. 75, n. 3, p. 241-247, 2012.
• [6] CHATTOPADHYAY, D. K.; WEBSTER, D. C. Thermal stability and flame retardancy of polyurethanes. Prog. in Pol. Scien., v. 34, p. 1068-1133, 2009.
• [7] PANOSSIAN, Z. Corrosão e proteção contra corrosão em equipamentos e estruturas metálicas. São Paulo: Instituto de Pesquisas Tecnológicas, v. 1, 1993.
• [8] ROBERGE, P. R. Corrosion Engineering: principles and practice. New York: McGraw-Hill Companies, 2008.
• [9] SILVA, R. S.; CARDOZO, H. M.; FERREIRA, J. Z.; FERREIRA, C. A.; MENEGUZZI, A. Filme Autosuportado de Polianilina Desdopada para Aplicações Anticorrosivas. Pol., v. 22, n. 3, p. 288-294, 2012.
• [10] WICKS Jr., Z. W.; JONES, F. N.; PAPPAS, S. P.; WICKS. D. A.; Organic Coatings: science and technology. New Jersey: John Wiley Andamp; Sons, 2007.

Como citar:

SILVA, R. S.; MAGGI, V.; FERREIRA, J. Z.; MENEGUZZI, A.; "Anodic protection obtained by applying Smart Paint in Carbon Steel", p-13415-13422. In: Anais do XX Congresso Brasileiro de Engenharia Química - COBEQ 2014 [= Blucher Chemical Engineering Proceedings, v.1, n.2]. São Paulo: Blucher, 2015.
ISSN 23591757, DOI 10.5151/chemeng-cobeq2014-0411-25637-144668