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Study on the Prediction of Surface Color Change of Cultural Properties Materials by Fog Occurrence

안개 발생에 따른 문화재 표면의 색 변화 예측 연구

  • Han, Ye Bin (Department of Heritage Conservation & Restoration, Graduate School of Convergence Cultural Heritage, Korea National University of Cultural Heritage) ;
  • Park, Sang Hyeon (Department of Heritage Conservation & Restoration, Graduate School of Convergence Cultural Heritage, Korea National University of Cultural Heritage) ;
  • Yu, Ji A (Department of Heritage Conservation & Restoration, Graduate School of Convergence Cultural Heritage, Korea National University of Cultural Heritage) ;
  • Chung, Yong Jae (Department of Heritage Conservation & Restoration, Graduate School of Convergence Cultural Heritage, Korea National University of Cultural Heritage)
  • 한예빈 (한국전통문화대학교 문화유산융합대학원 수리복원학과) ;
  • 박상현 (한국전통문화대학교 문화유산융합대학원 수리복원학과) ;
  • 유지아 (한국전통문화대학교 문화유산융합대학원 수리복원학과) ;
  • 정용재 (한국전통문화대학교 문화유산융합대학원 수리복원학과)
  • Received : 2016.10.10
  • Accepted : 2016.12.15
  • Published : 2016.12.20

Abstract

Fog is atmospheric in which tiny drops of water vapor are suspended in the air near the ground. Its form, occurrence, etc., change according to the temperature, relative humidity, wind and geographical features of the space around it. In particular, fog tends to occur near a source of water because of temperature and relative humidity difference. These days, climate change is increasingly affecting the occurrence of fog. Therefore the purpose of this study was to investigate how fog affects materials that are part of our cultural properties through outdoor exposure tests and artificial degradation. The degradation evaluation of materials as a function of fog occurrence frequency, showed that the color of metals changed noticeably, whereas dyed silk and Dancheong showed degradation on the surface and color differences but no particular tendencies. Therefore, damage prediction by color differences as a function of fog occurrence frequency was based on metal samples, which showed constant color differences. Through a comparison of the predictive value and color difference by outdoor exposure, the accuracy and applicability of the damage prediction formula was confirmed. If a more complex damage prediction formula is created, it is expected that prediction of the degree of material damage in the field would be possible.

안개는 매우 작은 물방울이 대기 중에 떠다니는 현상으로 주변의 온도, 습도, 바람, 지형 등에 따라 안개의 형태나 발생 여부 등이 달라진다. 특히 안개는 수분을 함유하는 수원(水源) 근처에서 온습도 차이로 인해 발생하기 쉬우며, 오늘날 기후 변화는 안개 발생에 더욱 영향을 미칠 수 있다. 본 연구에서는 다양한 기후요인 중 안개가 문화재에 미치는 영향을 알아보고자 각 재질에 대해 옥외폭로 및 인공열화를 실시하였으며 지속적인 안개 발생으로 인한 재질의 손상정도를 예측하기 위해 색변화를 중심으로 회귀분석을 실시하였다. 금속 표준시편에 대한 옥외폭로 및 인공열화 결과, 표면 변화가 크게 발생하였으며 화견 및 단청류의 경우 표면상 열화된 모습은 관찰되었으나 색차의 경우 일정한 경향성은 확인되지 않았다. 안개 발생빈도에 따라 유의적인 색변화가 발생한 금속 표준시편을 대상으로 안개 발생빈도에 따른 색 변화 예측식을 작성하였으며, 실제 옥외폭로를 통한 색차값의 비교를 통해 색 변화 예측식의 적용 가능성을 확인하였다. 이를 바탕으로 향후 보다 종합적인 손상 예측식을 수립한다면 실제 현장에서 보존환경에 따른 재질의 손상도 예측이 가능할 것으로 기대된다.

Keywords

References

  1. Cho, J.H., 2007, A study on the relationship between fog and air pollution in the Seoul area(2000-2004). Master's thesis, Hanyang University, Seoul. (in Korean with English Abstract)
  2. Do, J.Y., Kim, S.W. and Jo, H.G., 2015, A study on deterioration of stone monuments by acid fog. Journal Miner Society Korea, 28(2), 135-145. (in Korean) https://doi.org/10.9727/jmsk.2015.28.2.135
  3. Gwak, H.I., 2008, Life time prediction of acrylic resin for metal artifacts reinforcement. Master's thesis, Gyeongsang National University, Jinju. (in Korean with English Abstract)
  4. Jeong, S.Y., Jeon, S.Y., Baek, S.R., Jeong, H.S., Lee, J.H. and Kim, H.J., 2015, Studies on the accelerated aging characteristics of paper records by gaseous air pollutions. Journal of Korea TAPPI, 47(4), 151-159. (in Korean with English Abstract)
  5. Jeong, S.H., Kim, S.H., Han, Y.B., Lee, M.Y., Lee, H.J. and Chung, Y.J., 2016, Impact of a large water control on environment of surrounding cultural heritage. Journal of Conservation Science, 32(3), 395-402. (in Korean with English Abstract) https://doi.org/10.12654/JCS.2016.32.3.10
  6. Kim, H.D., Cho, C.B. and Seo, K.W., 2016, On the steam fog in the Gumi reservoir of Nakdong river. Journal of Environmental Science International, 25(1), 163. (in Korean with English Abstract) https://doi.org/10.5322/JESI.2016.25.1.163
  7. Kim, M.N., Lim, B.A. and Lee, S.Y., 2014, Damage characteristics of Korean traditional textiles by formaldehyde. Journal of Conservation Science, 30(4), 353-364. (in Korean with English Abstract) https://doi.org/10.12654/JCS.2014.30.4.04
  8. Kim, Y.S., Park, T.S., Moon, J.S., Lee, S.B. and Lee, Y.H., 2000, A study on the metals corrosion in air. Proceeding of the 31st Meeting of Korean Society for Atmospheric Environment, 279-280. (in Korean)
  9. Lee, S.H. and Heo, I.H., 2003, The impact of the dam construction on the fog characteristics of its surrounding area. Environmental Impact Assessment, 12(2), 109-120. (in Korean)
  10. Lee, K.M. and Seo, M.S., 2011, A study on the characteristics of fog and development of prediction technique in the Chung-cheong area. Journal of Climate Research, 6(3), 200-218. (in Korean with English Abstract)
  11. Moon, S.H, 2013, A study on the change of fog frequency and duration hours in South Korea. Journal of Climate Research, 8(2), 93-104. (in Korean with English Abstract) https://doi.org/10.14383/cri.2013.8.2.93