Consolidation tests on the graffiti of the Steri’s prison with nanotechnological Ca(OH)2 dispersed in iso-propanol

Risultato della ricerca: Other


The combination of weathering and human activities often induce pyhisicochemical alterationon the surface of wall paintings. One of the most still largely used restoration techniquesfor these works of art, is based on the application of organic polymers. Due to theirability to stick detached and powdered pigments,these products provide an immediate consolidatingeffects. Unfortunately, both their aging and their pyhisicochemical incompatibilitywith the inorganic support can have serious consequences also causing further damageto the work of art. In this paper a new technological approach is presented based on the useof Ca(OH)2 nanoparticles dispersed in isopropanol. Some applicative test have been carriedout onto the graffiti in the Steri’s prison in Palermo. After the application of thenanoparticles, SEM/EDX and water absorption tests indicate that the transpiration of thewall was maintained and that the open pores were not completely clogged, confirming thatthe nanolime dispersions is a good chemically compatible consolidant for wall paintings.
Lingua originaleEnglish
Numero di pagine8
Stato di pubblicazionePublished - 2009


Cita questo