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

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388980%3A_____%2F20%3A00524433" target="_blank" >RIV/61388980:_____/20:00524433 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461446:_____/20:N0000045

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0026265X19321848?via%3Dihub#sec0015" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0026265X19321848?via%3Dihub#sec0015</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.microc.2020.104842" target="_blank" >10.1016/j.microc.2020.104842</a>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10402 - Inorganic and nuclear chemistry

Projekt

<a href="/cs/project/GA17-15621S" target="_blank" >GA17-15621S: Tvorba kovových mýdel v malířských dílech jako příčina jejich degradace</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Microchemical Journal

ISSN

0026-265X

e-ISSN

—

Svazek periodika

156

Číslo periodika v rámci svazku

JUL

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

10

Strana od-do

104842

Kód UT WoS článku

000543430700038

EID výsledku v databázi Scopus

2-s2.0-85083745920