Korean Journal of Mineralogy and Petrology (광물과 암석)

The Petrological Society of Korea & The Mineralogical Society of Korea (한국암석학회 & 한국광물학회)
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Material Scientific Properties and Effects on Atmospheric Environment of Copper Rust Pigments

동록안료의 재료과학적 특성 및 대기환경 영향 평가

  • Park, Ju Hyun (Restoration Technology Division, National Research Institute of Cultural Heritage) ;
  • Kim, Myoung Nam (Restoration Technology Division, National Research Institute of Cultural Heritage) ;
  • Park, Se Rin (Conservation Science Division, National Research Institute of Cultural Heritage) ;
  • Yu, Ji A (Conservation Science Division, National Research Institute of Cultural Heritage) ;
  • Kim, Su Kyoung (Conservation Science Division, National Research Institute of Cultural Heritage) ;
  • Lee, Sun Myung (Restoration Technology Division, National Research Institute of Cultural Heritage)
  • 박주현 (국립문화재연구소 복원기술연구실) ;
  • 김명남 (국립문화재연구소 복원기술연구실) ;
  • 박세린 (국립문화재연구소 보존과학연구실) ;
  • 유지아 (국립문화재연구소 보존과학연구실) ;
  • 김수경 (국립문화재연구소 보존과학연구실) ;
  • 이선명 (국립문화재연구소 복원기술연구실)
  • Received : 2020.09.10
  • Accepted : 2020.11.20
  • Published : 2020.12.31
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Abstract

Atacamite and Verdigris were studied material scientific properties and durability that are used for traditional green pigment in traditional art painting work and Dancheong. As a result of ingrediant analysis, K-AA and K-VA identified Atacamite and Hoganite (or Verdigris) respectively. In order to find a factor of depressing the stability of pigment, we examined UV radiant exposure test, CO2/NO2 gas corrosion test and salt spray test. Salt spray test damaged both samples which were formed salt particle on the surface of the samples and it makes color disability. Furthermore, the results of gas corrosion test that both pigments change color enough to be perceived by the naked eyes showed that an air pollutant NO2 gas is also considered to be a major damage factor. In the case of K-VA, Hoganite that is main component of sample changes Tenorite with turn black after accelerated UV radiant exposure test. The consequences of the atmospheric environment effect test of the two pigments, K-VA showed relatetively weaker than K-AA.

전통 회화 및 단청용 채색 안료 중 녹색을 표현하기 위해 사용된 동록안료의 재료과학적 특성 및 안정성을 알아보기 위하여 염화동(Atacamite), 초산동(Verdigris) 2종의 안료를 이용하여 평가를 진행하였다. 구성광물 분석 결과, K-AA는 아타카마이트(Atacamite)가 주요 구성광물로 천연 광물성 재료로 확인되고 K-VA는 호가나이트(Hoganite)로 확인되었다. 동록안료의 안정성을 저해하는 요인을 찾고자 UV 노출, CO2/NO2 가스부식 및 염수분사 시험 등의 분석을 실시하였다. 색상 안정성을 가장 크게 저해하는 요인은 두 안료 모두 염수분사 시험으로 시료 표면에 염생성물이 생성되어 변질되는 등 손상이 가중되었다. 또한 대기오염물질인 NO2의 영향도 두 안료 모두 육안으로 인지될 정도로 색이 변하여 주요 손상 요인으로 작용되는 것으로 판단된다. 특히 K-VA의 경우 K-AA와는 달리 UV 노출 평가 후 녹색에서 흑색으로 변하면서 본래의 색상을 완전히 잃어리는 것으로 K-VA의 주성분인 Hoganite가 UV 노출 후 Tenorite로 물질이 변했기 때문으로 판단된다. 두 안료의 대기환경 영향 평가 결과, K-AA에 비해 K-VA이 대기환경 영향에 상대적으로 취약한 모습을 보였다.

Keywords

Acknowledgement

본 연구는 문화재청 국립문화재연구소 문화유산 조사연구(R&D)사업의 지원을 받아 수행되었습니다.

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