Journal of Conservation Science (보존과학회지)

The Korean Society Of Conservation Science For Cultural Heritage (한국문화재보존과학회)
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Study on Qualitative Analysis for Lacquer Mixed with Some Additives by Pyrolysis‐Gas Chromatography/Mass Spectrometry

Py-GC/MS 분석법을 이용한 첨가물 혼합 옻칠 접착제의 정성분석

  • Kim, Ji Eun (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)
  • 김지은 (한국전통문화대학교 문화유산융합대학원 수리복원학과) ;
  • 유지아 (한국전통문화대학교 문화유산융합대학원 수리복원학과) ;
  • 정용재 (한국전통문화대학교 문화유산융합대학원 수리복원학과)
  • Received : 2017.01.24
  • Accepted : 2017.02.14
  • Published : 2017.02.20
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Abstract

Lacquer has been used as a natural paint or adhesive in Korea since 2nd century B.C. It has been found to have been used as an adhesive as mentioned in old records and as seen in excavated relics, It was also mixed with flour, animal glue, or fish glue to produce lacquer adhesives. Qualitative analysis and evaluation of the applicability of lacquer and additives was performed in this study. The results of EGA analysis for lacquer additives confirmed that the pyrolysis temperature of lacquer, glucose glue, and animal glue. On the basis of this result, raw lacquer sample was checked that pyrolysis product that originated from urushiol side chain (R group). Components originating from glucose and amino acid were detected in glutinous rice paste and animal glue samples. In this study, the optimum pyrolysis temperature for each lacquer and additive mixture was determined from basic qualitative analysis data. By performing the qualitative analysis of each mixture, the applicability of this technique for analyzing real relics was evaluated.

옻칠은 천연도료로써 기원전 1~2세기부터 한반도에서 사용되었으며 접착제로도 활용되었다. 이러한 접착제로써의 기능은 고문헌과 실제 출토되는 유물에서 찾을 수 있으며, 아교, 밀가루, 어교 등을 혼합하여 사용했다는 사실을 확인할 수 있다. 본 연구는 첨가물을 혼합한 칠의 정성분석을 통하여 칠분석 및 혼합재료에 대한 분석가능성을 확인해보고자 하였다. 첨가물을 혼합한 칠에 대한 정성분석 결과, EGA분석을 통해 옻, 찹쌀풀, 아교의 열분해 온도를 확인하였다. 이를 바탕으로 Py-GC/MS 분석을 통해 생칠 시료의 경우 우루시올 곁사슬(R기)에서 유래된 열분해 산물을 확인하였으며, 찹쌀풀과 아교 각각 글루코오스와 아미노산에서 유래된 물질로 추정되는 성분이 검출되었다. 본 연구를 통해 옻과 첨가물별 최적의 열분해 온도를 확인하였으며, 열분해 산물에 대한 기초 정성분석 값을 제시하였다. 첨가물 혼합 비율별 정성분석을 실시하여 실제 유물에서 관찰되는 칠 접착제 분석 가능성을 확인하였다.

Keywords

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