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Title: Performance of nanocomposites for preservation of artistic stones

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.
Authors:
; ; ;  [1] ; ;  [2]
  1. ENEA-UTTMAT, CR Casaccia, v. Anguillarese 301,00123 Rome (Italy)
  2. ENEA-UTAPRAD, CR Frascati, v. Enrico Fermi 45, 00044 Frascati (Rome) (Italy)
Publication Date:
OSTI Identifier:
22311377
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1603; Journal 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)
Country of Publication:
United States
Language:
English
Subject:
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