松弛法
流变学
蛋黄
介观物理学
流变仪
材料科学
化学工程
高分子科学
纳米技术
化学
复合材料
食品科学
物理
磁共振成像
医学
自旋回波
量子力学
工程类
放射科
作者
Agathe Fanost,Laurence de Viguerie,Guylaine Ducouret,Guillaume Mériguet,Philippe Walter,Helen Glanville,Anne‐Laure Rollet,Maguy Jaber
标识
DOI:10.1002/anie.202112108
摘要
Egg-tempera painting is a pictorial technique widely used in the Middle Ages, although poorly studied in its physico-chemical aspects until now. Here we show how NMR relaxometry and rheology can be combined to probe egg-tempera paints and shed new light on their structure and behavior. Based on recipes of the 15th century, model formulations with egg yolk and green earth have been reproduced to characterize the physicochemical properties of this paint at the mesoscopic and macroscopic scales. The rheological measurements highlight a synergetic effect between green earth and egg yolk, induced by the interactions between them and the structural organisation of the system. 1 H NMR relaxometry emphasizes the presence and the structure of a network formed by the yolk and the pigment.
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