BROWSE ARTICLES / Article View

Article View

Journal Search Engine

Download PDF Export Citation Metrics Korean Bibliography
Journal of Conservation Science Vol.31 No.1 pp.37-46

가역성이 우수한 도자기 복원용 Urethane resin의 개발 및 물성에 대한 연구

오승준,박기정,위광철

Study on the Development and Properties of Ceramics Restoration Purpose Urethane resin with Excellent Reversibility

Seung Jun Oh,Gi Jung Park,Koang Chul Wi

Abstract

In the case of adhesives & restoration agents currently being used for the preservation treatment of ceramics and earthenware, epoxy type, cellulose type and cellulose type are mainly being used. However, they are showing various problems such as re-detachment from severe contraction, color change from yellowing, work inconvenience of staining on tools and hand during usage and irreversibility. For the purpose of solving the issues of yellowing and irreversibility of epoxy resin being used to restore ceramics, urethane synthetic resin with low yellowing excellent reversibility has been developed in this study. The adhesive strength of urethane resin that has been developed has excellent properties with 2.07MPa for undiluted solution, which is 1.5 times higher than that of existing material EPO-TEK301Ⓡ 1.21MPa. The result of workability measurement showed that the wear rate of urethane resin (in Talc 50wt%) was 1.09%, which was somewhat higher than that of existing material Quick WoodⓇ (1.02%). In addition, its wear rate is two times higher than that of EPO-TEK301Ⓡ (0.41%) and L30Ⓡ (0.39%), thereby showing an advantage in its forming process compared to existing materials. As for the advantage of urethane resin of reversibility experiment, 12 hours after acetone, ethyl alcohol deposition, urethane resin and filler talc were dissolved 100% while showing powdering phenomenon. Compared to 0% reversibility of existing epoxy resin, it has much superior reversibility. The result of UV rays experiment to evaluate its durability showed that △E*ab color change value based on undiluted solution of urethane resin was 2.76 before & after UV rays exposure, which was a decrease by about 7-20 times compared to that of existing resin, thereby minimizing the issue of heterogeneity.

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