Sustainability in art conservation: a novel bio-based organogel for the cleaning of water sensitive works of art

Year: 2018

Authors: Prati S., Volpi F., Fontana R., Galletti P., Giorgini L., Mazzeo R., Mazzocchetti L., Samori C., Sciutto G., Tagliavini E.

Autors Affiliation: Microchemistry and Microscopy Art Diagnostic Laboratory (M2ADL), University of Bologna, Via Guaccimanni 42, Ravenna, 48123, Italy; CNR National Institute of Optics, Largo E. Fermi 6, Florence, 50125, Italy; Department of Chemistry G. Ciamician, University of Bologna, Via Selmi 2, Bologna, 40126, Italy; Department of Industrial Chemistry Toso Montanari, University of Bologna, Viale Risorgimento 4, Bologna, 40136, Italy

Abstract: Organo- and hydrogels have been proposed in the restoration field to treat different types of surfaces. The possibility to retain solvents and to have a controlled and superficial action allowed to use these materials for the removal of very thin layers applied on ancient historical objects, when the under paint layers are particularly delicate and water sensitive. In the last years, an increased attention has been devoted to the proposal of more healthy products to guarantee the safeguard of the operators. Few attention has been devoted to the development of green methods which foresee the use of renewable and biodegradable materials. The aim of this paper is to test a green organo-gel for the cleaning of water sensitive surfaces like varnished egg tempera paintings. The gel has been tested experimented on mock ups varnished with natural and synthetic materials and has been validated on a small portion of a Cimabue painting for the removal of two varnishes applied on two different test areas of the painting.


Volume: 90 (2)      Pages from: 239  to: 251

KeyWords: Chemical engineering; Chemistry, Art conservation; Green chemistry; ICGC-6; Organogels; Polyhydroxyalkanoates, Water conservation
DOI: 10.1515/pac-2017-0507

Citations: 25
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