A note on the origin of turbidity in films of an artists' acrylic paint medium

Whitmore, Paul M.; Colaluca, Val G.; Farrell, Eugene

doi:10.1179/sic.1996.41.4.250

Cited by 14 publications

(5 citation statements)

References 12 publications

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“…This effect related to the C-O stretching bands and to the C-H rocking band may suggest the loss of an ester group in agreement with the reduction of C=O absorption and to the fast oxidative chain scission of the polyethoxylated surfactants when exposed to UV light [34,35].…”

Section: Accepted Manuscriptmentioning

confidence: 88%

Accelerated UV ageing studies of acrylic, alkyd, and polyvinyl acetate paints: Influence of inorganic pigments

Pintus

Wei

Schreiner

2016

Microchemical Journal

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Section: Accepted Manuscriptmentioning

confidence: 88%

Accelerated UV ageing studies of acrylic, alkyd, and polyvinyl acetate paints: Influence of inorganic pigments

Pintus

Wei

Schreiner

2016

Microchemical Journal

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“…Irene Cárdaba López, Álvaro Solbes García Sistemas de limpieza gelificados para pinturas acrílicas en emulsión: una revisión de la literatura científica pp. 337-351 asociados con la presencia de ciertos aditivos hidrófilos como agentes humectantes y dispersantes (Whitmore, Colaluca y Farrell 1996;Agarwal y Farris 1999;.…”

Section: Ge-conservación Conservação | Conservationunclassified

“…Estas macromoléculas presentan una estructura amorfa helicoidal que tiene la capacidad de aumentar hasta 1000 veces su tamaño y absorber agua en función del pH de una solución. Aunque los PAA mantienen un bajo estado de hidratación con la acidez, al exponerlos a un ambiente alcalino se ionizan rápidamente pasando a un estado expandido y sensible a la absorción (Dillon, Lagalante y as wetting and dispersing agents (Whitmore, Colaluca and Farrell 1996;Agarwal and Farris 1999;).…”

Section: Ge-conservación Conservação | Conservationunclassified

Sistemas de limpieza gelificados para pinturas acrílicas en emulsión: una revisión de la literatura científica

López

García

2021

GEC

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Las pinturas acrílicas en emulsión acuosa se han utilizado en el arte de forma masiva desde los años 60. Sus propiedades ópticas y versatilidad posibilitaron su rápida incorporación al ámbito artístico, convirtiéndola en una de las técnicas más reconocibles a nivel internacional. Desde entonces, muchos artistas se han servido de estos productos sintéticos y sus derivados para realizar sus obras, conformando un gran acervo en fondos y colecciones que hoy en día presenta problemas de conservación. Lo más grave de esta situación es que los problemas identificados están intrínsecamente relacionados con su composición y propiedades de envejecimiento. En general, las películas acrílicas son muy sensibles a los solventes orgánicos y el agua, por lo que los métodos de limpieza tradicional no son adecuados para su intervención. Esta publicación pone en contexto parte relevante de la literatura científica referente a los nuevos métodos de limpieza basados en sistemas acuosos y gelificados.

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“…Fourier-transformed infrared spectroscopy (FTIR) and attenuated total reflectance-FTIR spectroscopy (ATR-FTIR) have been used to detect POE type additives in acrylic paints and binding media [10,[13][14][15][18][19][20][21][22][23]. Non-ionic alkylaryl-POE type surfactants have been successfully identified in acrylic paint films by combining FTIR with size-exclusion chromatography (SEC-FTIR) [24].…”

Section: Introductionmentioning

confidence: 99%

Characterization of additives of PVAc and acrylic waterborne dispersions and paints by analytical pyrolysis–GC–MS and pyrolysis–silylation–GC–MS

Silva

Doménech‐Carbó

Osete-Cortina

2015

Journal of Analytical and Applied Pyrolysis

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a b s t r a c tCommercial formulations of poly(vinyl acetate) (PVAc) and acrylic dispersions and paints commonly used by artists include a number of additives such as surfactants, coalescing agents, defoamers and thickeners, which are designed for improving shelf-life, as well as chemical and physical properties of the resulting product. Recent studies have shown that additives present in paints play an important role in the alteration processes undergone by the painting during ageing and further in cleaning tasks planed in conservation interventions. However, the identification of additives is a difficult task due to the elusive character of these substances present at low concentration in the paint.In this context, a four-step approach is proposed that includes analysis of paint samples together with analysis of their water extracted products by pyrolysis-gas chromatography-mass spectrometry (Py-GC-MS) and pyrolysis-silylation-gas chromatography-mass spectrometry (Py-silylation-GC-MS). This analytical strategy enables a better characterization of common additives present in commercial PVAc and acrylic paints and dispersions. In particular, the analysis of water soluble extracts, which are mainly composed by paint additives, avoids the interference of the major polymer pyrolizates. Experimental conditions concerning sample preparation and instrumental working conditions of both Py-GC techniques are optimized.Both acrylic and PVAc paints presented poly(ethylene oxide) (POE) type fragments dominating the background of their pyrograms, especially when derivatized by means of hexamethyldisilazane (HMDS). For the first time, additives such as alkyl sulfate and alkyl ether sulfate with C 10 and C 12 alkyl chains, poly(ethoxylate) fatty alcohol and octylphenyl poly(ethoxylate) surfactants were identified, as well as polyvinyl alcohol (PVOH) protective colloids, hydrophobically modified ethoxylated urethane (HEUR) thickeners an defoamers. Their major fragments and corresponding mass spectra are discussed.

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A note on the origin of turbidity in films of an artists' acrylic paint medium

Cited by 14 publications

References 12 publications

Accelerated UV ageing studies of acrylic, alkyd, and polyvinyl acetate paints: Influence of inorganic pigments

Accelerated UV ageing studies of acrylic, alkyd, and polyvinyl acetate paints: Influence of inorganic pigments

Sistemas de limpieza gelificados para pinturas acrílicas en emulsión: una revisión de la literatura científica

Characterization of additives of PVAc and acrylic waterborne dispersions and paints by analytical pyrolysis–GC–MS and pyrolysis–silylation–GC–MS

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