[article]
| Titre : |
Investigating Nineteenth Century Gel Mediums: From Historical Recipes to Model Systems |
| Type de document : |
texte imprimé |
| Auteurs : |
Université Paris-Sorbonne (Paris), Auteur |
| Année de publication : |
2023 |
| Article en page(s) : |
Pages 357-364 |
| Langues : |
Anglais (eng) |
| Catégories : |
Colloïdes
Fourier, Spectroscopie infrarouge à transformée de
Gélification -- Teneur en plomb
Liants -- 19e siècle -- Formules et recettes
Peinture -- Matériaux -- 19e siècle -- Composition chimique
Vernis
|
| Mots-clés : |
Megilp Métal-résine Gumtion |
| Index. décimale : |
7.025 Dommages. Conservation. Protection |
| Résumé : |
ABSTRACT
Gelled mediums were widely used during the nineteenth century, added to paint on the palette to modify its rheological, optical, and drying properties. Many variations of gelled mediums exist in the literature, all with the common basis of mastic resin or varnish, drying oil, and a lead compound. With the aim of unveiling the chemistry of such systems, reconstructions were carried out not only following the historical recipes, but in addition, exploring variations and simplifications to get a better understanding of the key ingredients and interactions inducing gelation. Different parameters were tested to establish whether these have an impact on the gelation mechanisms, particularly the influence of the nature and proportions of the ingredients and the preparation process. These reconstructions and their FTIR characterisation reveal the formation of metal-resin soaps, but also underline the specific role of lead in the gelation. |
in Studies in conservation > Vol.68 N°3-4(2023; April-May) (2023-04-03) . - Pages 357-364
[article] Investigating Nineteenth Century Gel Mediums: From Historical Recipes to Model Systems [texte imprimé] / Université Paris-Sorbonne (Paris), Auteur . - 2023 . - Pages 357-364. Langues : Anglais ( eng) in Studies in conservation > Vol.68 N°3-4(2023; April-May) (2023-04-03) . - Pages 357-364
| Catégories : |
Colloïdes
Fourier, Spectroscopie infrarouge à transformée de
Gélification -- Teneur en plomb
Liants -- 19e siècle -- Formules et recettes
Peinture -- Matériaux -- 19e siècle -- Composition chimique
Vernis
|
| Mots-clés : |
Megilp Métal-résine Gumtion |
| Index. décimale : |
7.025 Dommages. Conservation. Protection |
| Résumé : |
ABSTRACT
Gelled mediums were widely used during the nineteenth century, added to paint on the palette to modify its rheological, optical, and drying properties. Many variations of gelled mediums exist in the literature, all with the common basis of mastic resin or varnish, drying oil, and a lead compound. With the aim of unveiling the chemistry of such systems, reconstructions were carried out not only following the historical recipes, but in addition, exploring variations and simplifications to get a better understanding of the key ingredients and interactions inducing gelation. Different parameters were tested to establish whether these have an impact on the gelation mechanisms, particularly the influence of the nature and proportions of the ingredients and the preparation process. These reconstructions and their FTIR characterisation reveal the formation of metal-resin soaps, but also underline the specific role of lead in the gelation. |
|
Ouvert du lundi au vendredi de 9h à 17h.
Ajouter le résultat dans votre panier Affiner la recherche Interroger des sources externesInvestigating Nineteenth Century Gel Mediums: From Historical Recipes to Model Systems / Université Paris-Sorbonne (Paris) in Studies in conservation, Vol.68 N°3-4(2023; April-May) (2023-04-03)
n°27 (2023:printemps) - 2023-05-01 (Bulletin de Actuel de l'estampe contemporaine)
