Stability studies of materials applied in the restoration of a baroque oil painting

Vizárová, Katarína; Reháková, Milena; Kirschnerová, Soňa; Peller, András; Šimon, Peter; Mikulášik, Radoslav

doi:10.1016/j.culher.2011.01.001

Cited by 15 publications

(7 citation statements)

References 9 publications

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“…The facts demonstrate that RT-silica has better reinforcement performance on SBR matrix. Aer aging for the same time, this gap in mechanical property is more evident for SBR/ RT 30 and SBR/silica 30 . As the ller contents are less than 10 phr, namely, low content of llers, both RT-silica and silica have well dispersity in SBR matrix, whereas neither of them can form effective ller network, which results in that the tensile strength of SBR/RT 10 and SBR/silica 10 are basically similar.…”

Section: The Changes Of Mechanical Properties Of Sbr Composites Durinmentioning

confidence: 93%

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Effect of nanosilica-based immobile antioxidant on thermal oxidative degradation of SBR

et al. 2015

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A new kind of nanosilica-based immobile antioxidant (RT-silica) consisting of nanosilica, antioxidant intermediate p-aminodiphenylamine (RT) and silane coupling agent 3-glycidoxypropyltrimethoxysilane (KH-560) was successfully synthesized via a grafting reaction in our laboratory. It was revealed that the anti-oxidation performance of the SBR/RT-silica composite was far superior to that of the SBR/silica composite, especially at high temperature, based on the results of non-isothermal oxidation induction time (OIT) tests. The calculation of protection factors (PFs) based on two non-Arrhenius temperature functions showed that silica possessed an acceleration effect on the aging of the SBR matrix. According to the results of tensile tests, the SBR/RT-silica composites exhibited more preeminent mechanical properties and residual rates during accelerated aging, in comparison with the SBR/silica composites. The affections of RT-silica on the cross-linking network of the SBR matrix were investigated via a tube model, demonstrating that RT-silica can't change the cross-linking density, but can induce the chain entanglement of rubber molecular chains. Moreover, the calculated values of degradation activation energy of SBR composites via the Kissinger-Akahira-Sunose (KAS) method and Friedman method showed that RT-silica changed the thermal-oxidative aging mechanism of the SBR matrix.

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Section: The Changes Of Mechanical Properties Of Sbr Composites Durinmentioning

confidence: 93%

“…In terms of non-isothermal DSC measurement which is performed at constant heating rate, the relation between the oxidation onset temperature (T i ) and heating rate (b) can be described by the following equations: [27][28][29][30]…”

Section: Determination Of Non-isothermal Oxidation Induction Timementioning

confidence: 99%

Effect of nanosilica-based immobile antioxidant on thermal oxidative degradation of SBR

et al. 2015

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“…BWS samples underwent accelerated aging under the same conditions as ink model samples. The degree of stability of the studied samples was assessed using the method described by Vizarova et al [30] Results are summarized in the Table 1. All inks, except bistre, were more stable in light than in thermal aging (at the studied aging times).…”

Section: Resultsmentioning

confidence: 99%

Study of stability of brown-gray inks on paper support

et al. 2015

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Research into paper artworks and the identification of drawing techniques dating from the 15th to the 19th century from the collection of Slovak National Gallery revealed that the most frequently used means of writing was a set of brown-gray inks. This set includes bistre, sepia, and iron-gall inks (IGI). The light fastness of these organic compounds is not considered very high. Moreover, iron gall inks attack paper support by the processes commonly known as iron gall ink corrosion. In the experimental part of the research, the stability of three different brown-gray inks was studied. Model inks, i.e. bistre, sepia and IGI with two molar ratios Fe : gallic acid were prepared according to historical recipes. Whatman paper was used as a support material. Samples were submitted to accelerated aging in closed vessels at 100°C with and without the presence of NO 2 in concentration of 100 ppm as well as to the light aging in a light chamber. Changes of mechanical, optical and chemical properties of the samples as well as spectra in the IR region were studied. The observed changes allowed an evaluation of the effect of particular inks on paper support and effect of various external factors of aging (temperature, light, pollutants) on the model systems. Simultaneous thermal analysis (DTA/TG) was carried out in order to study the thermo-oxidative stability of the materials. Sepia and bistre inks have been assessed as generally more stable than iron-gall inks.

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“…To analyze the influence of temperature on fiber properties Thermogravimetry/Derivative Thermogravimetry (TG/DTG), 79 Differential Scanning Calorimetry (DSC), 80 and Differential Thermal Analysis (DTA) 81 can be utilized. These methods can be particularly useful for quick and easy checks during ageing experiments.…”

Section: Methods For Analyzing Historical Textile Materialsmentioning

confidence: 99%

Historical textiles – a review of microbial deterioration analysis and disinfection methods

Gutarowska

Pietrzak

Machnowski

et al. 2016

Textile Research Journal

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All historical textile materials, due to their chemical composition (cellulose, protein), under conditions of high humidity are potentially exposed to microbial degradation. Numerous examples of microbial deterioration of archaeological textile materials demonstrate the need for the use of modern analytical methods for examination of diversity of organisms inhabiting them, as well as an analysis of their behavior. It is recommended that objects with a high degree of microbiological contamination are disinfected before being incorporated to a collection. Today, due to the progress in research on the effects of disinfection on historical material, risks to health and the environment, new methods of disinfection are still being developed. The presented literature review describes the testing methods of microbial deterioration of historical textile materials, including the latest methods for assessing biodiversity (called Next Generation Sequencing) and properties of historical textiles (chemical, microscopic, mechanical). It is particularly suitable for conservators and scientists who are interested in biodeterioration, disinfection technology, and maintenance problems of this type. Characteristics of test methods and disinfection include their application to historical objects, description, advantages, and disadvantages, as well as directions for future studies that aim to even better protect cultural heritage using the latest scientific and technical innovations.

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Stability studies of materials applied in the restoration of a baroque oil painting

Cited by 15 publications

References 9 publications

Effect of nanosilica-based immobile antioxidant on thermal oxidative degradation of SBR

Effect of nanosilica-based immobile antioxidant on thermal oxidative degradation of SBR

Study of stability of brown-gray inks on paper support

Historical textiles – a review of microbial deterioration analysis and disinfection methods

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