Paper ageing : the effect of paper chemical composition on hydrolysis and oxidation
| Autor: | Dominika Pawcenis, Kamila Przybysz, Joanna Paczkowska, Edyta Małachowska, Jacek Dańczak |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Polymers and Plastics
Cellulose degradation oxidation 02 engineering and technology 010402 general chemistry 01 natural sciences Article lcsh:QD241-441 Hydrolysis chemistry.chemical_compound lcsh:Organic chemistry cellulose degradation Lignin Cellulose Chemical composition crystallinity paper ageing Chemistry food and beverages General Chemistry 021001 nanoscience & nanotechnology 0104 chemical sciences Chemical engineering hydrolysis Ageing cellulose depolymerisation Degradation (geology) 0210 nano-technology Atmospheric humidity |
| Zdroj: | Polymers Volume 13 Issue 7 Polymers, Vol 13, Iss 1029, p 1029 (2021) |
| Popis: | The degradation of cellulose is an important factor influencing its mechanical, optical, physical, and chemical properties and, hence, the lifetime of paper in libraries and archival collections. Regardless of the complexity of the paper material, the main chemical pathways for its degradation are hydrolysis and oxidation. This study presents an overview of the analytical techniques employed in the evaluation of the hydrolysis and oxidation processes these techniques include size-exclusion chromatography, Fourier-transform infrared and ultraviolet–visible spectroscopy, and X-ray diffraction. This paper aims to determine the extent to which these instrumental methods are useful for studying the aforementioned processes and for which lignin contents. It also highlights how atmospheric humidity could affect the cellulose structure in paper containing lignin. It was found that humidity causes significant changes in the cellulose chain lengths and that a high lignin content in paper could suppress some cellulose degradation pathways. This knowledge can be applied to developing strategies and selective chemical treatments preventing the consequences of paper ageing. |
| Databáze: | OpenAIRE |
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