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首页> 外文期刊>Applied Surface Science >Surface analysis characterisation of gum binders used in modern watercolour paints
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Surface analysis characterisation of gum binders used in modern watercolour paints

机译：现代水彩涂料中胶基粘合剂的表面分析表征

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Conducting this study has demonstrated that not only SEM-EDX but also XPS can be an efficient tool for characterising watercolour paint surfaces. We find that surface effects are mediated by water. Once the powdered components in the watercolour come into contact with water they dramatically transform their chemical structures at the surface and show the presence of pigment components with a random dispersion within the gum layer. Hence the topmost surface of the paint is confirmed as being composed of the gum binder components. This result is difficult to confirm using just one analytical technique (either XPS or SEM-EDX). In addition, peak fitting of C1s XPS spectra suggests that the gum binder in the commercial watercolour paints is probably gum arabic (by comparison with the reference materials). This identification is not conclusive, but the combination techniques of XPS and SEM shows the surface structure with material distribution of the gum binder and the other ingredients of the watercolour paints. Therefore as a unique technique, XPS combined with SEM-EDX may prove a useful method in the study of surface structure for not only watercolour objects but also other art objects; which may in future help in the conservation for art. (C) 2016 Elsevier B.V. All rights reserved.
机译：进行这项研究表明，不仅SEM-EDX，而且XPS均可成为表征水彩颜料表面的有效工具。我们发现表面效应是由水介导的。一旦水彩中的粉状成分与水接触，它们就会在表面上显着改变其化学结构，并显示出在胶层中存在随机分散的颜料成分。因此，可以确认涂料的最上表面是由树胶粘合剂成分构成的。仅使用一种分析技术（XPS或SEM-EDX）很难确认该结果。此外，C1s XPS光谱的峰拟合表明，商用水彩涂料中的胶基粘合剂可能是阿拉伯胶（与参考材料相比）。这种鉴定不是结论性的，但是XPS和SEM的结合技术显示了表面结构以及树胶粘合剂和水彩颜料其他成分的材料分布。因此，XPS与SEM-EDX结合作为一种独特的技术可能被证明是研究水彩对象和其他艺术品的表面结构的有用方法。将来可能会有助于保护艺术品。 （C）2016 Elsevier B.V.保留所有权利。

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