甘肃拉卜楞寺壁画表面涂层材质分析

发布时间：2018-06-04 07:29

本文选题：西藏壁画 + 表面涂层　；参考：《文物保护与考古科学》2017年04期

【摘要】：西藏壁画表面大多刷有保护涂层。据记载,其材质主要是桐油、牛胶或清漆等。但目前,对该涂层材质科学的研究却较少,不利于后期保护修复。为配合拉卜楞寺壁画保护修复项目,本研究以衰减全反射红外光谱法(ATR-FTIR)、核磁共振氢谱法(~1H-NMR)、热裂解-气相色谱-质谱联用(Py-GC-MS)技术等分析手段,对甘肃夏河拉卜楞寺弥勒佛殿、时轮学院主殿壁画的涂层进行了分析。结果表明,两处佛殿壁画涂层可确定是一种干性油,种类与桐油较接近。但由于西藏壁画在材料和工艺上的独特性,材料老化等因素,拉卜楞寺壁画涂层在组成和结构上,与现代桐油有一定差别,表现出一定的丰富性和复杂性。后期修复,可采用性质与西藏传统涂层材料接近的干性油,例如桐油,作为新的壁画表面涂层材料。
[Abstract]:Tibetan murals are mostly painted with protective coatings. According to records, its material is mainly tung oil, cattle gum or varnish and so on. However, at present, the scientific research on the coating material is less, which is not conducive to the later protection and restoration. In order to cooperate with the project of protecting and repairing the murals of Labran Temple, the Maitreya Temple of Shahe River, Gansu Province, was analyzed by means of attenuated total reflectance infrared spectroscopy (ATR-FTIRN), 1H-NMR-NMR, pyrolysis-gas chromatography-mass spectrometry (GC-MS), etc. The coating of the mural of the main hall of the time wheel college was analyzed. The results show that the coating of the two frescoes can be identified as a kind of dry oil, which is similar to tung oil. However, due to the unique material and technology of Tibetan murals, the aging of materials and other factors, the composition and structure of the painting coating of Labran Temple are different from those of modern tung oil, showing a certain richness and complexity. The dry oil, such as tung oil, which is similar in nature to the traditional Tibetan coating material, can be used as the new surface coating material for the fresco.
【作者单位】：敦煌研究院保护研究所;国家古代壁画与土遗址保护工程技术研究中心;电子科技大学微电子与固体电子学院应用化学系;
【基金】：国家文物局拉卜楞寺壁画保护修复项目资助(201504)
【分类号】：K879.41

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