Effect of thermal accelerated ageing on the properties of model canvas paintings |
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| Affiliation: | 1. Department of the Built Environment, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands;2. Rijksmuseum, Museumstraat 1, 1071 XX, Amsterdam, The Netherlands;3. Mauritshuis, Plein 29, 2511 CS, The Hague, The Netherlands;4. Van’t Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 WV, Amsterdam, The Netherlands |
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| Abstract: | The aim of this study is to develop a laboratory technique to simulate a natural ageing of canvas paintings adopting artificial ageing methods in air (thermal oxidation), in the absence of light. Four models of canvas paintings aged up to 315 years are considered. Paintings are constituted of oil film on oil ground layer, oil film on tempera ground layer, tempera film on tempera ground layer or by tempera film on oil ground layer. Surface strength and the colour of the paintings and the degree of polymerization (DP) of linen canvas were evaluated at different steps of ageing. The degradative result was estimated as the DP of linen canvas after prefixed times of microbial attack. |
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