The ageing behavior of phenol formaldehyde (PF) foam, a material increasingly used in modern‐contemporary art, was investigated by a multi‐analytical approach. PF foams with open and closed‐cell structures were selected and analyzed in their unaged and naturally indoor‐aged state by employing optical microscopy (OM) and fiber optical reflectance spectroscopy (FORS) for assessing their morphology and color alteration. Micro‐Fourier transform infrared spectroscopy (μ‐ FTIR) was used for determining chemical changes and oxidation processes, and the acidity was monitored by pH measurements. The results clearly showed the extreme sensitivity of both open and closed‐cell PF foams to conditions typically found in indoor museums. OM indicated that the cells of the foams are prone to disrupt, and a tendency towards a red color shift was observed with FORS. μ‐FTIR revealed the formation of quinone groups resulting from oxidation reactions. Finally, a slight decrease in the acidity was found by pH measurements.
The ageing behavior of phenol formaldehyde (PF) foam, a material increasingly used in modern‐contemporary art, was investigated by a multi‐analytical approach. PF foams with open-and closed‐cell structures were selected and analyzed in their unaged and naturally indoor‐aged state by employing optical microscopy (OM) and fiber optical reflectance spectroscopy (FORS) for assessing their morphology and color alteration. Micro‐Fourier transform infrared spectroscopy (μ‐ FTIR) was used for determining chemical changes and oxidation processes, and the acidity was monitored by pH measurements. The results clearly showed the extreme sensitivity of both open-and closed‐cell PF foams to conditions typically found in indoor museums. OM indicated that the cells of the foams are prone to disrupt, and a tendency towards a red color shift was observed with FORS. μ‐FTIR revealed the formation of quinone groups resulting from oxidation reactions. Finally, a slight decrease in the acidity was found by pH measurements.
What about Phenol Formaldehyde (PF) Foam in Modern-Contemporary Art? Insights into the Unaged and Naturally Aged Material by a Multi-Analytical Approach
Anna PiccoloFormal Analysis
;Ligia Maria MorettoMethodology
;
2021-01-01
Abstract
The ageing behavior of phenol formaldehyde (PF) foam, a material increasingly used in modern‐contemporary art, was investigated by a multi‐analytical approach. PF foams with open-and closed‐cell structures were selected and analyzed in their unaged and naturally indoor‐aged state by employing optical microscopy (OM) and fiber optical reflectance spectroscopy (FORS) for assessing their morphology and color alteration. Micro‐Fourier transform infrared spectroscopy (μ‐ FTIR) was used for determining chemical changes and oxidation processes, and the acidity was monitored by pH measurements. The results clearly showed the extreme sensitivity of both open-and closed‐cell PF foams to conditions typically found in indoor museums. OM indicated that the cells of the foams are prone to disrupt, and a tendency towards a red color shift was observed with FORS. μ‐FTIR revealed the formation of quinone groups resulting from oxidation reactions. Finally, a slight decrease in the acidity was found by pH measurements.
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