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http://dx.doi.org/10.12925/jkocs.2014.31.4.635

A Study on the Dimensional Stability of Archaeological Waterlogged Salix koreensis Andersson Treated with Recycled PEG  

Yang, Seok-Jin (GaYa National Research Institute of Cultural Heritage)
Lee, Soo (Department of Chemical Engineering, Changwon National University)
Kim, Jong-Hwa (Department of Chemical Engineering, Changwon National University)
Publication Information
Journal of the Korean Applied Science and Technology / v.31, no.4, 2014 , pp. 635-641 More about this Journal
Abstract
Archaeological waterlogged woods require a process of dimensional stabilization for their conservation. PEG is the most widely used in the conservation of archaeological waterlogged wood. One of the easiest and commonly used methods is the impregnation of 40% polyethylene glycol followed by vacuum freeze drying. However, the waste fluid produced from the PEG treatment is black in color and has a severe odor due to the organic matter extracted from the wood. Thus It cannot be recycled and it was just thrown out. Color of waste fluid can be decolored with oxidation reaction by hydrogen peroxide. Properties of PEG before and after preservation treatment, and after oxidation with $H_2O_2$ were not changed. Dimensional stability of archaeological waterlogged Salix koreensis Andersson was studied with pure or recycled PEG. The ratio of impregnation solutions were 10:0, 7:3, 5:5, 3:7, 0:10 (pure PEG : recycled PEG). Impregnation process was carried out by putting the wood specimens 10% PEG solution for 5days, 20% for 5 days, 30% for 5 days finally 40% for 5 days. All of the specimens showed the weight change rate of 25%. SEM results provided that the dimensional change of were less than 4% PEG impregnated specimens. Comparing with pure PEG impregnation system, conservation precess mixed PEG also showed no significant changes. Conclusively, the recycled PEG can be used for archeological waterlogged wood conservation precess.
Keywords
archaeological waterlogged wood; hydrogen peroxide; Salix koreensis Andersson; conservation treatment; dimensional stability;
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Times Cited By KSCI : 1  (Citation Analysis)
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1 R. Endo, K. Kamei, I. Iida and Y. kawahara, Dimensional stability of waterlogged wood treated with hydrolyzed feather keratin. Archaeological Science, 35, 1240 (2008).   DOI
2 S. C. Kim, Compressive strength of waterlogged archaeological wood after PEG treatment with concentration and solvent", J. of Conservation Science, 28(2), 95 (2012).
3 I. J. Kim, "Characteristics and PEG-treatment of ancient wrecked woods excavated in Korea", Doctor's thesis of Graduate School of Chonnam National university, (2004).
4 Y. S. Kim, K. N. Choi, Micro morphological aspects of hardwoods deteriorated in the sea-water from wrecked ship's timer, Conservation Studies, 7, 276 (1986).
5 S. O. Jung, A. R. Jung and S. J. Yang, An investigative report on excavating the fortress of seongsan IV, GaYa National Research Institute of Cultural Heritage, Changwon, 2, p384-385, (2011).
6 S. Y. Baek, "Study on the dimensional stabilization of archaeological waterlogged wood using cetyl alcohol treatment", Master's thesis of Graduate School of Kyungpook National University, (2012).
7 Y. H. Yi, Conservation of waterlogged wooden finds excavated in wet-site, J. of the Kor. Soc. of Conservation sci. for Cultural Properties, 6, 126-140 (1997).
8 Y. S. Kim, J. W. Bang, I. J. Kim, and K. N. Choi, Chemical composition of archaeological woods submerged in the seawater, J. Korean Wood Sci. & Tech., 18(2), 3 (1990).
9 Y. S. Jin, A study on the investigation and removal the cause of blacken effect of waterlogged archaeological woods, Munhwaje, 40, 414 (2007).
10 S. C. Kim, W. K. Park, and Y. H. Yi, Dimensional Change of PEG-Freeze Dried Waterlogged Woods Exposed at Various Humidity Conditions, J. of Conservation Science, 16, 110 (2004).
11 S. J. Yang, "A study on the treatment method for the conservation of waterlogged camphor tree artifacts and the recovering process of waste fluids", Doctor's thesis of Graduate School of Changwon National University, (2005).