Crystallinity and degradation of silk: correlations between analytical signatures and physical condition on ageing
Crystallinity and degradation of silk: correlations between analytical signatures and physical condition on ageing
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DOI：
10.1007/s00339-007-4218-z
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发表时间：
2007-08
期刊：
影响因子：
--
通讯作者：
P. Garside;P. Wyeth
中科院分区：
文献类型：
--
作者：
P. Garside;P. Wyeth
在考虑适当的保护、展示和储存策略时，准确地描述历史纺织品的物理状况，并了解这些材料中发生的微观结构变化是至关重要的。我们的工作集中在开发非破坏性或微破坏性的方法，这将使这一最重要的历史纤维之一，丝绸。我们已经能够证明，在蚕丝样品的物理变质和某些可测量的光谱、色谱和化学特征之间可以得出相关性。了解这些签名出现的方式，然后允许纤维的结晶和非晶含量内的微观结构变化进行研究和更充分的解释。我们小组和该领域其他研究人员开发的技术包括偏振FTIR-ATR（Pol-ATR）和近红外（NIR）光谱，HPLC微量取样分析和pH测量。这些分析的结果与可测量的机械性能相关，因此表明，历史悠久的丝织物的物理状态可能会被充分表征为保护目的，通过这种间接的微观方法。
Adequately characterising the physical condition of historic textiles, and understanding the microstructural changes that occur in these materials, is essential when considering appropriate conservation, display and storage strategies. Our work has concentrated on developing non-destructive or micro-destructive methodologies that will permit this for one of the most important historic fibres, silk. We have been able to demonstrate that correlations can be drawn between the physical deterioration of silk samples and certain measurable spectroscopic, chromatographic and chemical signatures. Understanding the way in which these signatures arise then allows the microstructural changes within the crystalline and amorphous content of the fibres to be investigated and more fully interpreted. The techniques developed by our group and by other researchers in the field include polarised FTIR-ATR (Pol-ATR) and near infrared (NIR) spectroscopy, HPLC microsampling analyses and pH measurements. The results of these analyses correlate to measurable mechanical properties and thus suggest that the physical state of historic silk fabrics might be adequately characterised for conservation purposes by such indirect micromethodology.