Highly transparent poly(2-ethyl-2-oxazoline)-TiO<sub>2</sub>nanocomposite coatings for the conservation of matte painted artworks

Colombo, A; Gherardi, Francesca; Goidanich, Sara; Delaney, John K.; Rie, E. René de la; Ubaldi, Maria Chiara; Toniolo, Lucia; Simonutti, Roberto

doi:10.1039/c5ra10895k

Cited by 33 publications

(21 citation statements)

References 43 publications

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“…Paint layers prepared with Aquazol 500 without pigments did not show significant modifications during artificial ageing, in agreement with the data reported in the literature [23]. This thus confirms its potential for use as a binder for retouching paints in the restoration of works of art.…”

Section: Discussionsupporting

confidence: 91%

“…Aquazol 500 is now being used to retouch paintings. This study highlights that the stability of the polymer, as shown in a previous study limited to TiO2 nanoparticles [23], is affected by the presence of pigments. This is particularly the case of organic lakes containing an inorganic fraction in the formulation, leading to different physico-chemical phenomena, depending on the nature of the pigment.…”

Section: Discussionsupporting

confidence: 73%

“…In the spectra of the aged material, a band appears at 1734 cm -1 , and in addition the absorption band at 3267 cm -1 has increased in intensity while the band at 3480 cm -1 has decreased compared to the unaged material. The bands at 1734 cm -1 and at 3267 cm -1 are characteristic of the hydroxyl group stretching and carbonyl group stretching of carboxylic acids, respectively [23] ( Table 2). The formation of carboxylic acids indicates that a certain degree of photo-oxidation of Aquazol 500 has occurred during ageing.…”

Section: Characterization Of the Paint Layers Based On Aquazol 500 Anmentioning

confidence: 99%

“…However, to date it has only been tested on a few painted surfaces [22]. Several potential applications of Aquazol as a conservation material are currently under investigation, such as its use as a consolidant for unvarnished painted surfaces, in combination with TiO2 nanoparticles [23].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Aquazol as a binder for retouching paints. An evaluation through analytical pyrolysis and thermal analysis

Nasa

Marco

Bernazzani

et al. 2017

Polymer Degradation and Stability

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Aquazol poly (2-ethyl-oxazoline) is a tertiary aliphatic amide, with physical and chemical properties that are exploited in a variety of ways, from pharmaceutical applications to the conservation of cultural heritage. In this study, we evaluated the use of Aquazol as a new binder for retouching paint in the restoration of artworks. Aquazol 500 admixed with various formulations of organic red pigments was used to prepare paint replicas which were artificially aged and investigated by a multi-analytical approach based on analytical pyrolysis coupled with gas chromatography and mass spectrometry (Py-GC/MS), and thermogravimetry (TG), complemented by FTIR and LIBS spectroscopy. This is the first study on the ageing phenomena of Aquazol 500 using analytical pyrolysis and thermogravimetric analysis. The influence of the pigments' components on the pyrolysis behavior of Aquazol was also investigated. The paint replicas did not show significant modifications during artificial ageing. This thus highlights the optimal properties of Aquazol 500 as a binder for retouching, in addition to its already established suitability as a filler or consolidant in the restoration of artifacts. Interestingly, when Aquazol 500 is used in formulations containing organic pigments, Aquazol-pigment interactions are observed, strongly depending on the pigment used

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Section: Discussionsupporting

confidence: 91%

Section: Discussionsupporting

confidence: 73%

Section: Characterization Of the Paint Layers Based On Aquazol 500 Anmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Aquazol as a binder for retouching paints. An evaluation through analytical pyrolysis and thermal analysis

Nasa

Marco

Bernazzani

et al. 2017

Polymer Degradation and Stability

View full text Add to dashboard Cite

show abstract

“…Furthermore, due to its low cytotoxicity and “living polymerization” characteristic, PEOX has been applied in electronic devices [ 14 , 15 ] biomedical applications including drug delivery [ 16 ], anti-fouling coatings individually or as a monomer of block copolymers [ 17 , 18 , 19 ]. PEOX can also be adopted as a coating material because of its good light stability and re-solubility [ 20 , 21 ]. However, up to now, the environment-friendly material PEOX has seldom been reported and evaluated as a consolidant for wall paintings.…”

Section: Introductionmentioning

confidence: 99%

Environment-Friendly Poly(2-ethyl-2-oxazoline) as an Innovative Consolidant for Ancient Wall Paintings

Zhang

Wei

2018

Nanomaterials

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The research of innovative materials on the conservation of ancient wall paintings has given rise to increased attention in recent years. One of the most used synthetic organic consolidation material for the wall paintings is the commercial acrylic resin Paraloid B72 (PB 72), which encounters problems of the use of toxic solvents, low water vapor transmission, and poor penetration. Here, the non-toxic, environment-friendly product poly(2-ethyl-2-oxazoline) (PEOX) has been demonstrated as a great potential consolidant for wall paintings to solve these issues. First of all, thanks to the better penetration ability, the simulating plaster sample treated with PEOX shows greater enhanced surface hardness than PB 72. The single-lap joint shear strength test and the scotch tape test revealed the good adhesion of PEOX on inorganic surfaces and effective pigment consolidation. At the same time, the PEOX-treated sample presents less surface gloss. The hydrophilic nature of PEOX merits itself with superior water vapor permeability compared with PB 72. These advantages enable PEOX to be a progressive choice to replace the use of PB 72 in the controlled indoor working environment.

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Advances in polymer‐based matte coatings: A review

Yong

Liu

et al. 2021

Polymers for Advanced Techs

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In modern society, polymer-based matte coatings have gained widespread attention for its low gloss and exquisite texture characteristics, which are capable of providing soft-light environmental atmosphere and pleasant tactile feeling. This paper reports the definition of gloss, the measuring method, and classification of gloss, the mechanism, and method of extinction, as well as the factors that affect the gloss of films.The most significant work of this paper focuses on the research advancements in synthesis methods and matting mechanisms of ultraviolet light-curing matte coatings, powder matte coatings and water-based matte coatings. In general, compared with traditional polymer-based matte coatings, a new-developed chemical matte coating can avoid film defects caused by the addition of matting agents. Meanwhile, it can lower the raw material costs and streamline the production procedures, which are supposed to be the future development trend of matting resin industry.

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Highly transparent poly(2-ethyl-2-oxazoline)-TiO₂nanocomposite coatings for the conservation of matte painted artworks

Abstract: A nanocomposite coating based on TiO2 nanoparticles and poly(2-ethyl-2-oxazoline) is used as consolidant of matte paintings (such as temperas), by exploiting bulk scattering phenomenon to mimic the surface diffusive properties of the painted surface.

Cited by 33 publications

References 43 publications

Aquazol as a binder for retouching paints. An evaluation through analytical pyrolysis and thermal analysis

Aquazol as a binder for retouching paints. An evaluation through analytical pyrolysis and thermal analysis

Environment-Friendly Poly(2-ethyl-2-oxazoline) as an Innovative Consolidant for Ancient Wall Paintings

Advances in polymer‐based matte coatings: A review

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Highly transparent poly(2-ethyl-2-oxazoline)-TiO2nanocomposite coatings for the conservation of matte painted artworks

Abstract: A nanocomposite coating based on TiO2 nanoparticles and poly(2-ethyl-2-oxazoline) is used as consolidant of matte paintings (such as temperas), by exploiting bulk scattering phenomenon to mimic the surface diffusive properties of the painted surface.

Cited by 33 publications

References 43 publications

Aquazol as a binder for retouching paints. An evaluation through analytical pyrolysis and thermal analysis

Aquazol as a binder for retouching paints. An evaluation through analytical pyrolysis and thermal analysis

Environment-Friendly Poly(2-ethyl-2-oxazoline) as an Innovative Consolidant for Ancient Wall Paintings

Advances in polymer‐based matte coatings: A review

Contact Info

Product

Resources

About

Highly transparent poly(2-ethyl-2-oxazoline)-TiO₂nanocomposite coatings for the conservation of matte painted artworks