2017 Fiscal Year Final Research Report
Deterioration of Acrylic Resin used to Conservation of Excavated Bronze Cultural Properties
| Project/Area Number |
26282072
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Cultural assets study and museology
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| Research Institution | Gangoji Institute for Research of Cultural Property |
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Principal Investigator |
Ueda Naomi 公益財団法人元興寺文化財研究所, 研究部, 研究員 (10193806)
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| Co-Investigator(Kenkyū-buntansha) |
山口 繁生 公益財団法人元興寺文化財研究所, 研究部, 研究員 (00752370)
川本 耕三 公益財団法人元興寺文化財研究所, 研究部, 研究員 (10241267)
塚本 敏夫 公益財団法人元興寺文化財研究所, 研究部, 研究員 (30241269)
難波 洋三 独立行政法人国立文化財機構奈良文化財研究所, 埋蔵文化財センター, 客員研究員 (70189223)
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| Co-Investigator(Renkei-kenkyūsha) |
YAMADA Takashi 公益財団元興寺文化財研究所, 研究部, 研究員 (30435903)
TANAKA Yuri 公益財団元興寺文化財研究所, 研究部, 研究員 (70611614)
YAMAOKA Namie 公益財団元興寺文化財研究所, 研究部, 研究員 (90372169)
YOSHIDA Hiroshi 愛媛大学, ミュージアム, 准教授 (30263057)
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| Project Period (FY) |
2014-04-01 – 2018-03-31
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| Keywords | アクリル樹脂 / 劣化 / 出土青銅製品 / 化学分析 |
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| Outline of Final Research Achievements |
Changes in the molecular structure of the acrylic resin for impregnation used for conservation treatment of bronze artifacts excavated from Kojindani site were analyzed by infrared spectroscopy, pyrolysis-gas chromatograph/mass spectrometry, gel permeation chromatography, etc.. As a result, it was changed of the molecular structure compared with the fresh resin.
It was confirmed whether these changes were deterioration which degrades the function. As a result, contamination of adhesives and the like used at the time of conservation treatment was observed in addition to the impregnating resin. For that reason, we did not reach the evaluation of functionality at the present time.In addition, as a result of forcibly deteriorating the fresh resin by heating or addition of moisture, it was found that changes were caused by heating under high humidity. However, it was also found that no change was observed in the presence of solvent even in high temperature and high pressure environment.
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| Free Research Field |
保存科学
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