本文選題：西藏壁畫 + 表面涂層��； 參考：《文物保護(hù)與考古科學(xué)》2017年04期

【摘要】：西藏壁畫表面大多刷有保護(hù)涂層。據(jù)記載,其材質(zhì)主要是桐油、牛膠或清漆等。但目前,對該涂層材質(zhì)科學(xué)的研究卻較少,不利于后期保護(hù)修復(fù)。為配合拉卜楞寺壁畫保護(hù)修復(fù)項目,本研究以衰減全反射紅外光譜法(ATR-FTIR)、核磁共振氫譜法(~1H-NMR)、熱裂解-氣相色譜-質(zhì)譜聯(lián)用(Py-GC-MS)技術(shù)等分析手段,對甘肅夏河拉卜楞寺彌勒佛殿、時輪學(xué)院主殿壁畫的涂層進(jìn)行了分析。結(jié)果表明,兩處佛殿壁畫涂層可確定是一種干性油,種類與桐油較接近。但由于西藏壁畫在材料和工藝上的獨特性,材料老化等因素,拉卜楞寺壁畫涂層在組成和結(jié)構(gòu)上,與現(xiàn)代桐油有一定差別,表現(xiàn)出一定的豐富性和復(fù)雜性。后期修復(fù),可采用性質(zhì)與西藏傳統(tǒng)涂層材料接近的干性油,例如桐油,作為新的壁畫表面涂層材料。
[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.
【作者單位】： 敦煌研究院保護(hù)研究所;國家古代壁畫與土遺址保護(hù)工程技術(shù)研究中心;電子科技大學(xué)微電子與固體電子學(xué)院應(yīng)用化學(xué)系;
【基金】：國家文物局拉卜楞寺壁畫保護(hù)修復(fù)項目資助(201504)
【分類號】：K879.41

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