کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1037844 1483959 2016 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Variation in the sorption properties of historic parchment evaluated by dynamic water vapour sorption
ترجمه فارسی عنوان
تغییر در خواص جذب پوست تاریخی ارزیابی شده توسط جذب بخار آب پویا
کلمات کلیدی
پوست تاریخی؛ جذب بخار آب پویا ؛ چرخه جذب؛ پسماند؛ موازی مدل جنبشی نمایی؛ روند جنبشی سریع و آهسته
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
چکیده انگلیسی

Understanding the hydration of the collagen historic parchments is of great importance to the conservation and restoration processes. In this study, modern and historic (dated 1817 and 1769) parchments were investigated using dynamic water vapour adsorption/desorption (sorption) experiments. The relationship between the equilibrium moisture content against the relative humidity at constant temperature for two consecutive sorption cycles, the hysteresis and kinetic properties were analysed for different parchments from a historic archive. It was found that historical parchment samples exhibited higher equilibrium moisture content levels throughout most of the hygroscopic range and the hysteresis was greater than that of the contemporary sample. The samples were all found to obey parallel exponential kinetics for both adsorption and desorption. By applying the parallel exponential kinetic model, it was observed that the difference in the hysteresis is apparently mostly due to changes in the collagen matrix relaxation processes.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Cultural Heritage - Volume 17, January–February 2016, Pages 87–94
نویسندگان
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