Results 21 to 30 of about 2,504 (152)

Modelling the Interaction between Carboxylic Acids and Zinc Oxide: Insight into Degradation of ZnO Pigments

open access: yesMolecules, 2022
Computational modelling applied to cultural heritage can assist the characterization of painting materials and help to understand their intrinsic and external degradation processes.
Jihan Lubani   +4 more
doaj   +1 more source

The influence of commercial primed canvases in the manifestation of metal soaps protrusions in Georgia O’Keeffe’s oil paintings

open access: yesHeritage Science, 2020
During a routine condition survey in 2007 at the Georgia O’Keeffe Museum in Santa Fe, micro-protrusions were found scattered across the surfaces of the artist’s oil paintings produced between 1920 and 1950. In many of her works, including Pedernal (1941)
Annette S. Ortiz Miranda   +2 more
doaj   +1 more source

Technical examination of Liu Kang’s Paris and Shanghai painting supports (1929–1937)

open access: yesHeritage Science, 2021
This article presents an overview of Liu Kang’s (1911–2004) canvas painting supports from his early artistic phases, Paris (1929–1932) and Shanghai (1932–1937).
Damian Lizun   +2 more
doaj   +1 more source

Oleochemicals I: Studies on the preparation and the structure of lithium soaps.

open access: yesGrasas y Aceites, 1999
Lithium stéarate, palmitate, myristate, laurate, caprate and caprylate were prepared by means of fusion method. Elementary analysis and the infrared absorptions spectra of the prepared lithium soaps as well as their X-ray diffractions and the ...
Zein E. Shoeb   +2 more
doaj   +1 more source

Combined Use of Non-Invasive and Micro-Invasive Analytical Investigations to Understand the State of Conservation and the Causes of Degradation of I Tesori del Mare (1901) by Plinio Nomellini

open access: yesMethods and Protocols, 2022
In this study, the investigation of the oil painting on canvas I Tesori del Mare made by Plinio Nomellini in 1901 is presented. The aim of the research was threefold: the examination of the state of conservation in view of the restoration treatment ...
Andrea Macchia   +8 more
doaj   +1 more source

Metal Soap Membranes for Gas Separation [PDF]

open access: yesAdvanced Functional Materials, 2020
AbstractMetal soaps or metal alkanoates are metal–organic complexes held together with metal cations and the functional groups of hydrocarbon chains. They can be synthesized at a high yield by simply mixing the metal and organic sources, forming crystalline frameworks with diverse topology, and have been studied in the past because of their rich ...
Liu, Qi   +5 more
openaire   +2 more sources

Zinc oxide grounds in 19th and 20th century oil paintings and their role in picture degradation processes

open access: yesCeROArt : Conservation, Exposition, Restauration d'Objets d'Art, 2013
When zinc oxide is the main constituent of a ground layer, its stiffness and brittle behavior could affect the whole paint system, producing damages to upper pigmented layers.
Elena Pratali
doaj   +1 more source

Infrared spectroscopic and conductometric analysis of the structural and electrochemical properties of cobalt and neodymium caprate

open access: yesNext Materials
This study investigates the structural and conductive properties of cobalt and neodymium caprates in mixed solvent systems. Using infrared spectroscopy, we found that metal-carboxylate complexes form, with metal oxygen bonds affecting the behavior of ...
Suchi Singh, Kavita Poonia, R.K. Shukla
doaj   +1 more source

Driers

open access: yesCHIMIA, 2002
Paints and other coating systems form a solid layer during the film-forming process where different physical and chemical processes are important.Oxidative drying is a process in which the evaporation of solvents is followed by an oxidation ...
Johan H. Bieleman
doaj   +1 more source

Solvent-mediated extraction of fatty acids in bilayer oil paint models: a comparative analysis of solvent application methods

open access: yesHeritage Science, 2019
The impact of solvent exposure on oil paintings and the differences between solvent application methods are longstanding topics in cleaning studies. Solvent exposure is ideally kept to a minimum, because solvent swelling can lead to the extraction and ...
Lambert Baij   +10 more
doaj   +1 more source

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