The effect of the hydration degree on the hydrothermal and thermo-oxidative stability of some collageneous matrices |
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Authors: | Budrugeac P Trandafir Viorica Albu Madalina Georgiana |
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Institution: | (1) 1ICPE-CA-Research and Development Institute for Electrical Engineering, 313 Splaiul Unirii, Sector 3, 74204 Bucharest, Romania;(2) Leather and Footwear Research Institute, 93 Ion Minulescu, Sector 3, 74259 Bucharest, Romania |
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Abstract: | The methods of the thermal analysis (TG, DTG and DTA) were used in order to investigate the effect of the hydration degree
on the thermal behaviour of some collageneous matrices. It was pointed out that the degradation of hydrated collagen in the
temperature range 20-400°C occurs through two successive processes accompanied by mass losses. The first process, consisting
in the collagen dehydration, is endothermic and takes place in the temperature range ≈25 - ≈125°C. The second process is exothermic
and consists in the decomposition and/or thermo-oxidation of dry collagen. The thermal parameters of both processes depend
on the hydration degree of collagen. The observed dependencies show that the hydrothermal and thermo-oxidative stability of
collagen are strongly correlated with its water content.
This revised version was published online in July 2006 with corrections to the Cover Date. |
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Keywords: | hydrothermal stability collageneous matrices thermo-oxidative stability |
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