Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7824090 | Polymer Degradation and Stability | 2018 | 6 Pages |
Abstract
The effects of γ-irradiation and thermal drying treatments at an industrial level, and accelerated ageing on the properties of pure cellulose paper are investigated with a multi-disciplinary approach. Viscometry is used for measuring the degree of polymerisation, visible reflectance spectroscopy for colour changes, tensile strength and tearing resistance tests for mechanical properties, Fourier transform IR spectroscopy and scanning electron microscopy for possible chemical or physical modifications of the surface. The results indicate that γ-rays (5 and 10â¯kGy) cause a sizeable reduction of the degree of polymerisation, but only small colour changes, while larger effects on the colour are caused by the synergetic effect of ageing. In spite of the large degree of polymerisation decrease, γ-irradiation is found to only slightly affect the mechanical properties, as well as thermal and ageing treatments. No clear evidence for changes in the FTIR spectral features due to the treatments employed is found.
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Physical Sciences and Engineering
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Organic Chemistry
Authors
Floriana Coppola, Flavia Fiorillo, Alberto Modelli, Matteo Montanari, Mariangela Vandini,