Monoazo and Isoindoline Yellow reactivity in presence of Pb, Ti, Zn-based white substrates |
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| Agnese De Carlo, Valerio Graziani, Paolo Branchini, Luca Tortora |
- Abstract:
- This work explores the effects of accelerated aging conditions on two yellow synthetic organic pigments with good light fastness: PY 1 and PY 139 also known as Hansa Yellow G (or Monoazo yellow) and Isoindoline Yellow, respectively. The reactivity of PY 1 and PY 139 in presence of reactive inorganic whites such as basic lead carbonate, titanium oxide, and zinc oxide was investigated. The accelerated aging process was achieved through UV irradiation in a home-made climatic chamber for a set of bilayer paint mock-ups. Bilayered samples were realized to simulate the painting technique of superimposing multiple layers of thinly applied paint. Colorimetry, Fourier-Transform Infrared Spectroscopy, and Photoluminescence Spectroscopy were adopted to reveal physico-chemical changes occurred in such samples.
- Download:
- IMEKO-MetroArchaeo-2023-092.pdf
- DOI:
- 10.21014/tc4-ARC-2023.092
- Event details
- IMEKO TC:
- TC4
- Event name:
- TC4 MetroArchaeo 2023
- Title:
IMEKO TC4 International Conference on Metrology for Archaeology and Cultural Heritage
- Place:
- Rome, ITALY
- Time:
- 19 October 2023 - 21 October 2023