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Journal of Conservation Science Vol.30 No.2 pp.181-187

도자기 복원용 저황변 Epoxy 수지의 개발 및 물성에 대한 연구

김우현,정다솜,배진수,지주연,위광철

A Study on the Development and Physical Properties of Low Yellowing Epoxy for Ceramic Preservation

Woo Hyun Kim,Da Som Cheong,Jin Soo Bae,Joo Yeon Jee,Koang Chul Wi

Abstract

AThe studies on ceramic preservation have been conducted widely in various institutions such as national/ public museums and research labs as well as the excavation institutions and university museums. Although there are some differences in preservation methodologies and materials used across the institutions, the variation is minimal. Specifically, epoxy resin is mostly used for ceramic restoration for its high cohesiveness, low contraction and high strength although there are some variations in for Ceramic Preservation. The synthetic resin type used according to the type of damage in the ceramic. However, the yellowing or the change of color across the time after the restoration is the weakness of epoxy resin. In this study, we aim to develop a material which minimizes this yellowing of epoxy resin while enhancing its cohesiveness and strength as well as other physical properties. We made the new material to have similar properties with those used widely for the ceramic restoration, such as EPO-TEK301Ⓡ, L30Ⓡ, XTR-311Ⓡ through comparative experiments. The cohesiveness of the newly developed resin was improved to 2.51(MPa), which is similar level of XTR-311Ⓡ of the 2.30(MPa) but about 2x higher than the other resins EPO-TEK301Ⓡ, L30Ⓡ (1.21 and 1.81 (MPa), respectively). Especially, the experiment on yellowing shows that the existing resins show the range of color change at 10~25(△E*ab), but the new low yellowing epoxy resin has the color change value at 8.3 (△E*ab), the value lowering the yellowing effect to 1 to 3 times of the existing epoxy resin, thereby solving the issue of generating sense of differences due to change of color or yellowing.

Vol. 40 No. 4 (2022.12)

Journal of Conservation Science Journal Abbreviation J. Conserv. Sci.
Frequency Quarterly
Doi Prefix 10.12654
Publisher The Korean Society of Conservation Science for Cultural Heritage
Indexed/Tracked/Covered By