Korean Chemical Engineering Research

The Korean Institute of Chemical Engineers (한국화학공학회)
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Anti-Corrosion Performance of the Novel Pigment, Ion-Exchanged Zeolite for the Protection of Galvanized Steel

아연도금강판의 방식을 위한 새로운 방청안료인 이온 교환된 제올라이트의 방청 성능

  • Published : 2011.12.01
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Abstract

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.

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 기여함을 확인할 수 있었다.

Keywords

References

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