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A Study on Corrosion Inhibitors for applying to Iron objects

철제유물의 부식억제를 위한 부식억제제에 관한 연구

  • Kim, Hye Sun (Gyeore Institute of Cultural Heritage) ;
  • Hur, Yoon Hyun (Conservation Science Lab, Incheon Metropolitan City Museum) ;
  • Kim, Soo Ki (Department of Cultural Properties, Yong-in University)
  • 김혜선 ((재)겨레문화유산연구원) ;
  • 허윤현 (인천광역시립박물관 보존과학실) ;
  • 김수기 (용인대학교 문화재학과)
  • Received : 2013.10.16
  • Accepted : 2013.12.26
  • Published : 2014.03.20

Abstract

Stabilization of iron artifacts is focused on desalination than corrosion inhibitors. However artifacts are not condition of desalination treatment must be applied to corrosion inhibitors. But iron artifacts is not representative of inhibitors which drug is most effective qualities have not been identified. Therefore in this study validates the effectiveness of existing inhibitors and its purpose is to suggest corrosion inhibitors for iron artifacts. In this study, Comparative experiment of corrosion inhibitors is selected BTA, DAN and MEA, TEA. This study was studied using Corrosion resistance test, Contact angle, XPS. As a result, all the samples treated with corrosion inhibitors was formed hydrophobic coating and was rising corrosion resistance. Also, the concentration of corrosion inhibitors was 3% better than 0.3%. BTA in the XPS experiment, the corrosive material to block the CH bond of the peak concentration was highly. This is considered corrosion potential is very high to see out the effect in the polarization experiment. Ethanolamine was superior to the MEA rather than in the TEA. MEA is likely to be appropriate in an outdoor iron artifacts seem to be suitable as corrosion inhibitors.

철제유물의 안정화처리는 부식인자 용출 처리하는 방법에 중점을 두고 있으나 탈염 처리 등 부식인자의 제거여건이 안 갖춰진 경우 부식억제제를 투입하여야 한다. 하지만 철제유물에 적용하는 대표적인 부식억제제가 없으며 이에 대한 연구도 부족한 실정이다. 따라서 본 연구에서는 철제유물의 부식억제제의 실효성을 검증하고 이에 접합한 부식억제제를 제시하는데 그 목적이 있다. 본 연구에서 부식억제제는 BTA, DAN과 MEA, TEA를 선정하였고 분극시험, 접촉각, XPS 등의 분석기기를 이용하여 비교 실험을 하였다. 그 결과 분극시험과 접촉각 실험에서 모든 시편이 소수성의 피막을 형성하며 부식저항성이 높아지는 현상을 통해 부식억제제의 실효성을 검증하였다. 또한 부식억제제의 농도가 높을수록 부식억제 효과가 좋아지는 것을 확인할 수 있었다. BTA는 XPS실험에서 부식성물질을 차단하는 성분인 C-H 결합 peak의 함량이 높게 검출되었으며 분극시험에서 부식전위가 매우 높게 측정되어 철제에도 부식억제 효과를 보이는 것으로 판단된다. 에탄올아민에서 TEA보다는 MEA가 더욱 우수하였으며 MEA는 소수성 피막을 형성하여 야외 철제유물의 부식억제제로 제시할 수 있다.

Keywords

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