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자료유형
학술저널
저자정보
정혜영 (국립문화재연구소) 강영석 (국립문화재연구소) 고인희 (국립문화재연구소) 양은정 (국립문화재연구소) 최경화 (강원대학교)
저널정보
한국펄프·종이공학회 펄프·종이기술 펄프·종이기술 제46권 제6호
발행연도
2014.12
수록면
56 - 62 (7page)

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This study aims to investigate the applicability of supercritical fluid extraction as a dewaxing technique to restore the beeswax-treated volume of the Annals of the Joseon Dynasty in various deterioration and damage conditions. Thus, this study analyzed the dewaxing efficiency and changes in physical and morphological properties before and after dewaxing, by applying the optimal supercritical fluid extraction dewaxing condition (70℃, 40 MPa, CO₂, Co-solvent 20% DCM, 2 hour) to 3 kinds of beeswax-treated paper with different deterioration rates (dry artificial aging of 10, 20 and 30 days at 120℃).
After dry artificial aging at 120℃ for 30 days, the average molecular weight of the beeswax-treated specimen was 1.856×105 g/mol, showing deterioration about 80% of the beeswax-treated paper before dewaxing. It was a similar level to the molecular weight of the bees-waxed volume of the Annals of the Joseon Dynasty that has a higher degree of damage. As a result of analyzing the dewaxing efficiency through FT-IR analysis, this study discovered that it was possible to effectively dewax beeswax-treated paper in the range of deterioration 20 to 80% with this supercritical fluid extraction dewaxing technique applied. As a result of analyzing changes in the physical and morphological properties before and after dewaxing, the viscosity tended to decrease to a slight degree, and since no morphological deformation or damage of stencil fibers was found, it was concluded possible to conduct stable dewaxing through this supercritical fluid extraction technique.

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ABSTRACT
1. 서론
2. 재료 및 방법
3. 결과 및 고찰
4. 결론
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UCI(KEPA) : I410-ECN-0101-2016-586-001054320