• Title/Summary/Keyword: artifacts refitting and restoration

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A study on aging characteristics of epoxy resins for conservation treatment of cultural heritage by adding UV stabilizer (자외선 안정제 첨가에 따른 문화재 보존처리용 에폭시계수지의 노화특성 연구)

  • Jeong, Se-Ri;Cho, Nam-Chul
    • Analytical Science and Technology
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    • v.24 no.5
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    • pp.336-344
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    • 2011
  • 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.