Počet záznamů: 1
Initial stages of metal soaps` formation in model paints: The role of humidity
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SYSNO ASEP 0524433 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Initial stages of metal soaps` formation in model paints: The role of humidity Tvůrce(i) Garrappa, Silvia (UACH-T) ORCID, RID, SAI
Kočí, Eva (UACH-T) SAI, RID
Švarcová, Silvie (UACH-T) SAI, RID, ORCID
Bezdička, Petr (UACH-T) SAI, RID, ORCID
Hradil, David (UACH-T) RID, SAICelkový počet autorů 5 Číslo článku 104842 Zdroj.dok. Microchemical Journal. - : Elsevier - ISSN 0026-265X
Roč. 156, JUL (2020)Poč.str. 10 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova FTIR spectroscopy ; Humidity ; Metal soap ; Oil paint ; X-ray diffraction Vědní obor RIV CA - Anorganická chemie Obor OECD Inorganic and nuclear chemistry CEP GA17-15621S GA ČR - Grantová agentura ČR Způsob publikování Open access s časovým embargem (01.06.2022) Institucionální podpora UACH-T - RVO:61388980 UT WOS 000543430700038 EID SCOPUS 85083745920 DOI 10.1016/j.microc.2020.104842 Anotace The presence of metal soaps is well documented in paintings originating from the 15th century onward, and in numerous cases, the soaps`formation is attributed to environmental factors, like relative humidity, light exposure and/or high temperature. Understanding the formation mechanism, involving effects of these particular factors during artwork`s realization, is crucial for the search of suitable conservation and preservation strategies. In the present study, the role of humidity on the formation of metal carboxylates and other secondary products in mixtures of lead-based pigments (i.e., minium, lead-tin yellow and lead white) with linseed oil was described within the experimental drying of model paints. Samples were exposed to various relative humidity conditions and the processes were monitored by Fourier-transform infrared spectroscopy (FTIR) and powder X-ray diffraction (XRD) involving both the hourly measurements for the monitoring of immediate processes and long-term (up to two months) monitoring to evaluate secondary changes. The acquired data clearly demonstrated the influence that the different levels of humidity may have on the formation of lead carboxylates during the painting's drying. The selected methods were efficient in the reaction monitoring and provided new insights leading to a better understanding of factors affecting the metal soaps' formation in paints. Pracoviště Ústav anorganické chemie Kontakt Jana Kroneislová, krone@iic.cas.cz, Tel.: 311 236 931 Rok sběru 2021 Elektronická adresa https://www.sciencedirect.com/science/article/pii/S0026265X19321848?via%3Dihub#sec0015
Počet záznamů: 1