Thermal analysis on parchments I: DSC and TGA combined approach for heat damage assessment

Ancient, new and artificially aged parchments were investigated with both differential scanning calorimetry (DSC) and thermogravimetry (TGA). Criteria to define a quantitative ranking of the damage experienced by the bulk collagen of historical parchments were assessed. A damage-related correlation...

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Bibliographic Details
Published in:Thermochimica acta 2006-08, Vol.447 (1), p.30-35
Main Authors: Fessas, D., Signorelli, M., Schiraldi, A., Kennedy, C.J., Wess, T.J., Hassel, B., Nielsen, K.
Format: Article
Language:English
Subjects:
Applied sciences
Damage assessment
DSC
Exact sciences and technology
Paper, paperboard, non wovens
Parchments
Polymer industry, paints, wood
SAXS
TGA
Wood. Paper. Non wovens
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Summary:Ancient, new and artificially aged parchments were investigated with both differential scanning calorimetry (DSC) and thermogravimetry (TGA). Criteria to define a quantitative ranking of the damage experienced by the bulk collagen of historical parchments were assessed. A damage-related correlation was found between the collagen denaturation temperature and the moisture content of the parchment. Qualitative rules for the evaluation of the damage at the nano-and mesoscopic level were achieved on the basis of peculiarities of the shape and width of the DSC signals and confirmed by small angle X-ray scattering patterns.
ISSN:0040-6031
1872-762X
DOI:10.1016/j.tca.2006.04.007