Nanodispersions of TiO2 in Water for Removing Acrylic Films Used in Conservation

Nanodispersions of TiO2 in Water for Removing Acrylic Films Used in Conservation

The influence of a nanodispersion of TiO2 in water (nanoparticle size: 40 nm, polydispersity index: 0.25), brushed on a Paraloid film and subjected to UV–Vis irradiation was evaluated. The TiO2 nanodispersions showed a tendency to reduce the molecular weight of Paraloid due to its photocatalytic pro...

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Veröffentlicht in:Polymers 2021-11, Vol.13 (22), p.3966
Hauptverfasser: Giuntoli, Giulia, Bini, Marta, Ciuffi, Benedetta, Salvadori, Barbara, Baldi, Giovanni, Rosi, Luca
Format: Artikel
Sprache:eng
Schlagworte:
Communication
Conservation
Cultural heritage
Marble
Molecular weight
Morphology
Nanoparticles
Photocatalysis
Pollutants
Polydispersity
Polymer films
Polymers
Radiation
Titanium dioxide
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Zusammenfassung:The influence of a nanodispersion of TiO2 in water (nanoparticle size: 40 nm, polydispersity index: 0.25), brushed on a Paraloid film and subjected to UV–Vis irradiation was evaluated. The TiO2 nanodispersions showed a tendency to reduce the molecular weight of Paraloid due to its photocatalytic properties. FTIR and GPC analyses and SEM images suggested the degradation of the polymer, while chromatic variations of the films were scarcely detected. This study is very remarkable in the perspective of using this material for the removal of polymeric films used in conservation.
ISSN:2073-4360
2073-4360
DOI:10.3390/polym13223966