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Received March 9, 2011
Accepted April 4, 2011
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아연도금강판의 방식을 위한 새로운 방청안료인 이온 교환된 제올라이트의 방청 성능
Anti-Corrosion Performance of the Novel Pigment, Ion-Exchanged Zeolite for the Protection of Galvanized Steel
포항공과대학교 철강대학원, 790-784 경북 포항시 남구 효자동 산 31 1포스코강판, 790-705 경북 포항시 남구 장흥동 470 2부경대학교 공업화학과, 608-739 부산시 남구 용당동 산 100
Graduate Institute of Ferrous Technology, Postech, San 31, Hyoja-dong, Nam-gu, Pohang, Gyeongbuk 790-784, Korea 1POSCO Coated & Color Steel Co., Ltd., 470 Janghung-dong, Nam-gu, Pohang, Gyeongbuk 790-705, Korea 2Department of Industral Chemistry, Pukyong National University, San 100, Yongdang-dong, Nam-gu, Busan 608-739, Korea
jongpark@postech.ac.kr
Korean Chemical Engineering Research, December 2011, 49(6), 745-751(7), NONE Epub 25 November 2011
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Abstract
내부식성이 강화된 새로운 방청안료를 개발하기 위한 연구의 일환으로, 본 연구에서는 높은 내부식성을 제공하는 아연 및 세륨 이온 교환된 제올라이트를 도입하였다. 그리고 이온교환 제올라이트를 이용하여 프라이머 도료 제조 및 도장을 수행한 후, 그것의 방식성능을 측정하였다. 도장을 위한 금속 기재는 아연도금(galvanized, GI) 강판이었고, 도장된 강판의 방식성능은 electrochemical impedance spectroscopy(EIS)와 scanning vibrating electrode technique(SVET)으로 측정되었다. EIS 및 절단면의 내부식성을 확인하기 위한 SVET 측정으로부터 세륨이온 교환된 제올라이트가 가장 높은 효율을 제시하였고, 아연 및 세륨 이온 교환된 제올라이트의 경우 GI 강판에 대하여 cathodic 부식 방지제로 기_x000D_
여함을 확인할 수 있었다.
In this study, zinc or cerium exchanged zeolite was introduced to develop a novel anti-corrosion pigment. The primer paint was made using them and was coated on galvanized(GI) steel. The anti-corrosion performance was measured using electrochemical impedance spectroscopy(EIS). And scanning vibrating electrode technique(SVET) was employed to observe the cut-edge corrosion process of the coated GI steel. From EIS and SVET results, it could be confirmed that Ce ion-exchanged zeolite showed the anti-corrosion performance higher than Shieldex C303 and Zn ionexchanged zeolite. Finally, it was found that metal ion-exchanged zeolite may provide new possibility as the smart cathodic corrosion inhibitor delivery systems on galvanized steels.
Keywords
References
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Bohm S, McMurray HN, Powell SM, Worsley DA, Mater. Corros., 52, 896 (2001)
Simoes AM, Torres J, Picciochi R, Fernandes JCS, Electrochim. Acta, 54(15), 3857 (2009)
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Deflorian F, Felhosi I, Rossi S, Fedrizzi L, Bonora PL, Macromol. Symp., 187, 87 (2002)
Williams G, McMurray HN, Loveridge MJ, Electrochim. Acta, 55(5), 1740 (2010)
Powell SM, McMurray HN, Worsley DA, Corrosion., 55, 1040 (1999)
Williams G, McMurray HN, Worsley DA, J. Electrochem. Soc., 149(4), B154 (2002)
Cheng XL, Wang ZB, Yan YS, Electrochem. Solid State Lett., 4(5), B23 (2001)
Mitra A, Wang ZB, Cao TG, Wang HT, Huang LM, Yan YS, J. Electrochem. Soc., 149(10), B472 (2002)
Beving DE, McDonnell AMP, Yang WS, Yan YS, J. Electrochem. Soc., 153(8), B325 (2006)
Cai R, Yan Y, Corrosion., 64, 271 (2008)
Lew CM, Cai R, Yan Y, Acc. Chem. Res., 43, 210 (2010)
Haron MJ, Rahim FA, Abdullah AH, Hussein MZ, Kassim A, Mater. Sci. Eng., B., 149, 204 (2008)
Fedrizzi L, Deflorian F, Boni G, Bonora PL, Pasini E, Prog. Org. Coat., 29, 89 (1996)
Mansfeld F, Tsai CH, Corrosion., 47, 958 (1991)
Aldykiewicz AJ, Davenport AJ, Isaacs HS, J. Electrochem. Soc., 143(1), 147 (1996)
