30 research outputs found
The egg binding medium and its interactions with organic solvents and water
a cura di L. Campanella e C. Picciol
Studio analitico dei solventi organici impiegati nella rimozione di adesivi sulle plastiche
Recenti studi scientifici hanno dimostrato come la plastica, il cui uso nella produzione di opere contemporanee é sempre più diffuso, sia soggetta a specifici fenomeni di degrado.
Questo progetto di ricerca si interessa della rimozione di residui adesivi da cinque polimeri plastici, attraverso l'uso di solventi organici e contemporaneamente della costruzione delle aree di solubilità sia delle plastiche che dei polimeri adesivi al fine di comprendere quale comportamento è più adeguato quando ci si trova a lavorare con questi materiali
INDAGINI DI LABORATORIO SVELANO I MATERIALI E LA TECNICA PITTORICA DI GIORGIO VASARI NELLA PALA ALBERGOTTI
Il soffitto ligneo policromo della chiesa di san Sebastiano a Venezia. Le indagini scientifiche per lo studio dei materiali e della tecnica pittorica
Il soffitto ligneo policromo della chiesa di san Sebastiano a Venezia. Le indagini diagnostiche
The chemistry of the egg binding medium and its interactions with organic solvents and water
Assessing the (In)Stability of Urban Art Paints: From Real Case Studies to Laboratory Investigations of Degradation Processes and Preservation Possibilities
Urban art as a shared expression of street art between artists, citizenship and municipalities has always had an important role in the social life and appearance of modern cities. However, the durability of urban and street artworks is susceptible to the degradation processes that the employed commercial paint formulations undergo once outdoors. These are complex mixtures of compounds, differently sensitive to environmental agents according to their chemical nature. Starting from the colorimetric analysis of murals created in 2010, 2011 and 2018 in Reggio Emilia, Italy, documenting their degradation already after a few months, this study aimed at understanding the stability of the most unstable paints used by the artists in these artworks. A multi-analytical approach evaluated the commercial products under the chemical point of view, after natural and accelerated ageing. Additionally, two manufactured anti-UV varnishes were evaluated for their possible use as coatings. The results pinpointed the weaknesses of the selected paints and highlighted how the application of an anti-UV coating might slightly affect the visual aspect of the artwork, though ensuring a greater resistance to the outdoor conditions due to their minor chemical sensitivity to environmental agents
Dal progetto al restauro di un manoscritto polimaterico Il caso dell’Erbario Casapini (secolo XVIII)
Casapini’s Herbarium is an 18th century manuscript, belonging to the Palatina Library in
Parma and currently stored at the Botanical Garden of Parma University. The Herbarium collects nearly
200 samples of dried plant specimens that have been severely affected by physical, biological and
chemical degradation. In 2016 the Inner Wheel Club Italia-Parma Est, an international female association,
decided to fund the conservation of this Herbarium in order to preserve it and allow its study.
A large team of professionals, including conservators, chemists, physicists and a botanist, has been
working on the project to secure this unique but very fragile object. This paper discusses the condition
assessment, the identification of degradation processes and the first conservation approach to the
Casapini Herbarium. Issues related to the treatment of heavily corroded areas, the resewing of the sections
and the future storage of the manuscript are also identified and highlighted for further research
