Iranian Chemistry and Chemical Engineering Research Center

Tehrān, Iran

Iranian Chemistry and Chemical Engineering Research Center

Tehrān, Iran
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Abbasi J.,University of Tehran | Samanian K.,University of Tehran | Afsharpor M.,Iranian Chemistry and Chemical Engineering Research Center
International Journal of Conservation Science | Year: 2017

Consolidation of degraded wooden artifacts by natural and synthetic polymers in a solution is an important step in the treatment process of wooden heritage. This treatment is basically depended on the penetration, distribution and retention of the consolidate in the wood structure. One of the most frequently used consolidate for wooden material is polyvinyl butyral (PVB). Present research aims to evaluate polyvinyl butyral and zinc oxide as consolidate of old dried wooden material and investigate the efficiency of zinc oxide as a supplement on the distribution, penetration and retention of the consolidate in the "patanus orientalts-L" wood samples. Samples used for this research all belong to Qajar period. They were obtained from the same artifact and had the same, relatively sound condition. Cross sections were cut and obtained in a chamber with controlled temperature and relative humidity and weighted afterwards. Zinc oxide was used in 0.5, 1.0 and 1.5 concentrations in the polyvinyl butyral matrix of 10% concentration. Efficiency of consolidate was evaluated by weighting, distribution and penetration in the wood and were examined by Fe-SEM and EDX. Concentrations 0.5 and 1% of Nano- zinc oxide increased the penetration of consolidate and all three concentrations of zinc oxide increased the retention. Penetration of Nano- zinc oxide in the lumen as well as uniform distribution of it in the wood structure was also observed by microscopic observation.

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