Effect of proteinaceous binder on pollution-induced sulfation of lime-based tempera paints

Herrera, Agustín; Cardell, Carolina; Pozo-António, J.S.; Burgos-Cara, Alejandro; Elert, Kerstin

doi:10.1016/j.porgcoat.2018.06.017

Cited by 8 publications

(13 citation statements)

References 32 publications

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“…In the E-based paints, the detected trend was opposite to that reported by Herrera et al [10] for paints prepared with egg yolk mixed with either calcite or gypsum exposed to SO 2 .…”

Section: Resultscontrasting

confidence: 89%

“…This indicates that the paints became greener, although these changes were not noticeable in the stereomicroscope images. In calcite-and gypsum-based paints mock-ups prepared with either egg yolk or rabbit glue exposed to SO 2 , a* increases were negligible, as reported by Herrera et al [10].…”

Section: Resultssupporting

confidence: 71%

“…Note that for E-based paints with the exceptions of AZ-EF-E and MAL-E paints, the b* increase showed a tendency to yellowish coloration, while for R-based paints, with the exceptions of AZ-C-R, AZ-EC-R, and MAL-R paints, the b* increases show a tendency to bluish color after the SO 2 ageing. Herrera et al [10] also found that yellowing after outdoor exposure to an urban environment was more intense in the case of egg yolk-based temperas than rabbit glue-based temperas. Table 1 for more information about the paint labeling If we look at the gloss value before and after the SO2 accelerated aging test (Table 3), although gloss values were less than 2.5 GU, E-based paints showed higher values than R-based paints.…”

Section: Resultsmentioning

confidence: 94%

“…In order to design preventive conservation strategies to protect polychrome artworks and historical paintings, paint mock-ups are used to evaluate the damage caused by different agents such as relative humidity, (solar/artificial) irradiation, and atmospheric gases including pollutants (ozone, nitrogen oxides, carbon dioxide, and sulfur dioxide) among others [1][2][3][4][5][6][7][8][9][10]. In the specific field of atmospheric contaminants, artificial aging tests have produced important findings regarding the interaction between model tempera paints and gases such as ozone, nitric acid, and nitrogen [8,11,12].…”

Section: Introductionmentioning

confidence: 99%

“…Although some research has been conducted on aged tempera paint mock-ups mainly exposed to artificial UV light and outdoor atmosphere, including direct sunlight radiation, very little work has been done on the effects of impurities and pigment grain size on their weathering processes [21,25,26]. Herrera et al [10] examined accelerated lime-based paint mock-ups and reported the importance of the mineralogical composition of the pigments (including impurities) and the specific surface area of the paint related to the binder. They also noted the role of pigment grain size in the susceptibility of the paint to sulfation, such that pigments containing portlandite-Ca(OH 2 )-sulfated faster than pigments only containing calcite (CaCO 3 ).…”

Section: Introductionmentioning

confidence: 99%

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Effect of a SO2 Rich Atmosphere on Tempera Paint Mock-Ups. Part 2: Accelerated Aging of Azurite- and Malachite-Based Paints

et al. 2020

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In order to improve our knowledge of the weathering response of tempera paints exposed to an industrial atmosphere, azurite- and malachite-based paint mock-ups prepared with either rabbit glue or egg yolk binders were artificially aged in an SO2 rich atmosphere. The aim was to identify the different alteration mechanisms and forms of degradation in the paints by observing their physical (color, gloss, reflectance, and roughness), mineralogical, chemical, and micro-textural characteristics. Superficial physical changes were evaluated by stereomicroscopy, spectrophotometry, gloss measurement, hyperspectral imaging, and roughness measurements. Chemical and mineralogical changes were evaluated by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy with microanalysis (SEM-EDS), which was also used to evaluate the micro-texture of the paints. The differences between the fresh temperas were due mainly to the binder (egg yolk or rabbit glue) used in the paint mixture, which also played a crucial role in the different deterioration patterns in the artificially aged paint mock-ups. Thus, the egg yolk-based paints remained physically quite intact after SO2 exposure, although they suffered more significant chemical degradation, above all in the form of copious precipitation of Cu and Ca-rich sulfate salts and the subsequent yellowing of the egg yolk binder. The SO2 aged rabbit glue-based mock-ups showed microscopically important crack formation and binder loss and fewer sulfated salts precipitated on the surface of the paints.

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“…In the E-based paints, the detected trend was opposite to that reported by Herrera et al [10] for paints prepared with egg yolk mixed with either calcite or gypsum exposed to SO 2 .…”

Section: Resultscontrasting

confidence: 89%

Section: Resultssupporting

confidence: 71%

Section: Resultsmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Effect of a SO2 Rich Atmosphere on Tempera Paint Mock-Ups. Part 2: Accelerated Aging of Azurite- and Malachite-Based Paints

et al. 2020

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Sustainable Development of Pine Biocarbon Derived Thermally Stable and Electrically Conducting Polymer Nanocomposite Films

Saleheen

Zaidi

Mehtab

et al. 2022

Renewable Energy for Sustainable Growth Assessment

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Characterization of black crusts developed on historic stones with diverse mineralogy under different air quality environments

Pozo-António

Cardell

Comite

et al. 2021

Environ Sci Pollut Res

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Black crusts (BCs) are one of the most critical alteration forms found on stones belonging to architectural heritage. Since they could be considered as passive samplers of atmospheric pollution, it would be plausible to establish relations between the air contamination and the BCs. With this aim, we have characterized BCs collected on historic buildings from two Spanish cities (Granada and Vigo) with different polluted atmospheres, as well as formed on stone substrates of varied mineralogy and texture. Likewise, in order to assess the impact of the atmospheric pollutants on the growth of BCs, quartz fiber filters were used as surrogate substrates and placed nearby the studied buildings to collect and analyze the aerosol particulate matter (PM). To this end, an array of complementary analytical techniques was used to evaluate the mineralogy, chemical composition, and texture of the BCs and to establish the correlation with the ions, OC (organic carbon), and EC (elemental carbon) detected in the PM on the quartz fiber filters. As result, BCs developed on carbonate substrates from Granada show more complex structure than those from Vigo, which are thinner because of frequent rain episodes. In both cities, NaCl, Pb-Cl, and Ca-Cl-rich particles, Ca-phosphate particles and clusters of Ba-sulfate-rich particles were detected. However, metal-rich rounded particles were more abundant in Granada’s BCs, including soot particles. BCs from Granada were richer in carbonaceous components (OC and EC) than the Vigo’s BCs. Although in the filters PM did not show EC—mainly due to traffic—, in the BCs from both locations OC and EC were detected. Therefore, this different composition was related to the mineralogy of the stones and the higher pollution of Granada in contrast to the industrial and sea-exposed city of Vigo.

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Effect of proteinaceous binder on pollution-induced sulfation of lime-based tempera paints

Cited by 8 publications

References 32 publications

Effect of a SO2 Rich Atmosphere on Tempera Paint Mock-Ups. Part 2: Accelerated Aging of Azurite- and Malachite-Based Paints

Effect of a SO2 Rich Atmosphere on Tempera Paint Mock-Ups. Part 2: Accelerated Aging of Azurite- and Malachite-Based Paints

Sustainable Development of Pine Biocarbon Derived Thermally Stable and Electrically Conducting Polymer Nanocomposite Films

Characterization of black crusts developed on historic stones with diverse mineralogy under different air quality environments

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