보존과학회지 (Journal of Conservation Science)
- 제17권
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- Pages.19-32
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- 2005
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- 1225-5459(pISSN)
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- 2287-9781(eISSN)
도막의 기계적 성질과 포수방법이 단청의 내후성에 미치는 영향
Influence of Mechanical Properties of Painting Layers and Priming Methods to Weathering Resistance of Danchung
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Oh, Joon suk
(Conservation Laboratory, The National Folk Museum of Korea) ;
- Kawanobe, Wataru (National Research Institute for Cultural Properties, Tokyo)
- 발행 : 2005.07.01
초록
전통목조건축물의 단청에서 발생하는 도막의 박리현상을 개선시키기 위해, 목재의 친수성으로 인해 목재와 도막간의 팽윤수축률의 차이에 의해 발생되는 응력이 도막의 내후성에 미치는 영향을, 도막의 기계적 성질(인장성질과 응력완화)과 교착제(아교, 아크릴에멀젼(Primal AC-3444), 아크릴수지 (Paraloid B-72))에 의한 포수방법으로부터 평가하였다. 아크릴에멀젼 도막은, 아크릴에멀젼의 유리전이온도가 상온 이하
The exterior of Korean traditional wooden buildings have been painted with Danchung of painting method using glue and pigments. However because of losing traditional techniques and materials through the period of colonization and industrialization, many problems are occurring today. Especially after several years from painting, occurrence of scalings and flakings in painting layer is a serious problem. To improve weathering resistance of painting layer caused by stress from the difference of swelling and shrinkage between painting layer and wood plate, was examined by weathering tests. The stress is due to the hydrophilic property of wood, mechanical properties(tensile property and stress relaxation) of painting layer, and priming methods by various binders such as glue, acrylic emulsion(Primal AC-3444), acrylic resin(Paraloid B-72). Because stress relaxation of acrylic emulsion of which glasf transition temperature is below room temperature
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