Performance of nanocomposites for preservation of artistic stones

Journal Article · Thu Jun 19 00:00:00 EDT 2014 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4883046· OSTI ID:22311377

Giancristofaro, Cristina; Pilloni, Luciano; Rinaldi, Antonio; Persia, Franca ^[1]; D'Amato, Rosaria; Caneve, Luisa ^[2]

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1. ENEA-UTTMAT, CR Casaccia, v. Anguillarese 301,00123 Rome (Italy)
2. ENEA-UTAPRAD, CR Frascati, v. Enrico Fermi 45, 00044 Frascati (Rome) (Italy)

In this work, the effectiveness of nanocomposite surface treatments as protective systems for artistic stones was evaluated. Pyrolitic silica and titania nanoparticles were dispersed in a commercial silicon-based polymer and applied on marble and travertine samples. Artificial aging processes, both in climatic chamber and in solar box, were carried out to simulate real degradation processes in terms of photo-thermal effects and physical-chemical damage. The performances of the nanocomposites used as consolidant were evaluated comparatively by means of diverse diagnostic techniques, namely: scanning electron microscopy (SEM), laser induced fluorescence (LIF), ultrasonic technique, colorimetry, total immersion water absorption and contact angle. The results show that some properties of conservation materials can be improved by the presences of nanoparticles because they induce substantial changes of surface morphology of the coating layer and counter the physical damage observed during artificial weathering.

• OSTI ID: 22311377
• Journal Information: AIP Conference Proceedings, Vol. 1603, Issue 1; Conference: Nanoforum 2013, Rome (Italy), 18-20 Sep 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ABSORPTION SPECTROSCOPY
AGING
COMPOSITE MATERIALS
FLUORESCENCE
LASER RADIATION
LITHIUM FLUORIDES
MARBLE
MORPHOLOGY
NANOPARTICLES
NANOSTRUCTURES
PERFORMANCE
SCANNING ELECTRON MICROSCOPY
SILICA
SILICON
SURFACE TREATMENTS
TEMPERATURE DEPENDENCE
TITANIUM OXIDES