Počet záznamů: 1

Initial stages of metal soaps` formation in model paints: The role of humidity

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, SAI}
Celkový 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