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http://dx.doi.org/10.5806/AST.2011.24.5.336

A study on aging characteristics of epoxy resins for conservation treatment of cultural heritage by adding UV stabilizer  

Jeong, Se-Ri (Restoration Technology Division, National Research Institute of Cultural Heritage)
Cho, Nam-Chul (Department of Cultural Heritage Conservation Science, Kongju National University)
Publication Information
Analytical Science and Technology / v.24, no.5, 2011 , pp. 336-344 More about this Journal
Abstract
The study attempted to find out any effect to prevent photo aging of epoxy resin used for conservation by way of adding UV stabilizer, one of plastic additives. Specimens were made by adding HALS and UVA UV stabilizer as each concentration to 3 kinds of epoxy resin, which are most frequently used for artifacts joining and restoration process, and aging effects were investigated through Color change, SEM, contact angle, FTIR analysis during UV aging experiments. Last, usage suitability was checked when UV stabilizer was added through Universal Tensile strength tester. In result, it is impossible to prevent decomposition of chemical structure in spite of adding UV stabilizer but in the case of epoxy A and R, it is believed that photo aging such as yellowing or crack can be minimized without giving a big influence to adhesive strength of epoxy resin through adding less than 0.1% of UVA. It is expected that above will solve photo aging problem of epoxy resin used for joining and restoration of artifacts and will extend its life as joining and restoration materials.
Keywords
artifacts refitting and restoration; epoxy resin; UV stabilizer; photo aging;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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