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Micro-FTIR spectroscopy characterization of monumental stones protective coatings

Domenii publicaţii > Chimie + Tipuri publicaţii > Articol în revistã ştiinţificã

Autori: B. Simionescu, M. Olaru, M. Aflori, F. Doroftei

Editorial: E. J. Sci. Theol. , 7(3), p.85-97, 2011.

Rezumat:

Total reflection Fourier transform infrared (ATR-FTIR) spectroscopy was used to assess the effectiveness of four polymeric hydrophobic coatings in the conservation of two monumental stones, originating from Spain and Romania. The selected coatings include three commercially available siloxane-based water repellent products, as well as a new hybrid nanocomposite with silsesquioxane units synthesized via the sol-gel technique. Micro-FTIR analyses were performed in order to chemically monitor the distribution of the chemical treatments within the treated stones by obtaining a chemical map of the siloxane-based water repellent treatments within the limestone’s cross-sections.

Cuvinte cheie: Micro-FTIR, siloxane-based water repellent, limestone, nanocomposite