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对丝织品保存现状进行评估,是寻找丝织品文物保护方法所必须做的先期工作。为此,采用扫描电子显微镜、红外光谱仪、差热分析仪、氨基酸分析等现代仪器分析方法,从宏观到微观对新疆阿斯塔纳出土的唐代米色绢袜进行保存现状评估。将之与现代丝绸进行对比研究,可知唐代绢袜的形貌和分子结构都发生了明显变化,纤维表面粗糙、结构疏松,热分解温度明显降低,氨基酸含量发生明显变化,其中天冬氨酸和酪氨酸降低了约30%,丝织品失去了原有的强度。分析结果表明绢袜的保存现状堪忧,急需保护。
The evaluation of the status quo of the preservation of silk fabrics is a preliminary work that must be done in search of silk cultural relics protection methods. To this end, the status quo of the preservation of the beige silk stockings in the Tang Dynasty unearthed in Astana, Xinjiang from macro to micro is evaluated by modern instrumental analysis methods such as scanning electron microscopy, infrared spectroscopy, differential thermal analysis and amino acid analysis. Compared with modern silk, we can see that the morphology and molecular structure of silk stockings changed obviously in the Tang Dynasty. The fiber surface was rough, the structure was loose, the thermal decomposition temperature was obviously decreased, and the content of amino acid changed obviously. Aspartic acid and cheese About 30% of the amino acid is lost, and the silk fabric loses its original strength. Analysis shows that silk stockings preservation status worries, in urgent need of protection.