Thermal degradation study of vegetable tannins and vegetable tanned leathers
نویسندگان
چکیده
منابع مشابه
Tannin fingerprinting in vegetable tanned leather by solid state NMR spectroscopy and comparison with leathers tanned by other processes.
Solid state ¹³C-NMR spectra of pure tannin powders from four different sources--mimosa, quebracho, chestnut and tara--are readily distinguishable from each other, both in pure commercial powder form, and in leather which they have been used to tan. Groups of signals indicative of the source, and type (condensed vs. hydrolyzable) of tannin used in the manufacture are well resolved in the spectra...
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vegetable tannins are the main factor of tanning in historical leathers. the identification of tannins in vegetable tanned leathers is not only importantin determining chemical characterization, production technology and structural nature of the leather, but it is also efficient at the evaluation of new vegetable tannins for conservation purposes. previous studies have also shown that chemical ...
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ژورنال
عنوان ژورنال: Journal of Analytical and Applied Pyrolysis
سال: 2019
ISSN: 0165-2370
DOI: 10.1016/j.jaap.2018.12.022