Photo- and Bio-Degradation Processes in Polyethylene, Cellulose and their Blends Studied by ATR-FTIR and Raman Spectroscopies
| Autor: | Halina Kaczmarek, Thierry Buffeteau, Dagmara Ołdak, Claude Sourisseau |
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| Přispěvatelé: | Bergeret, Bernadette |
| Rok vydání: | 2005 |
| Předmět: |
Materials science
Mechanical Engineering technology industry and agriculture Biodegradation Polyethylene [CHIM.THEO] Chemical Sciences/Theoretical and/or physical chemistry chemistry.chemical_compound symbols.namesake chemistry Chemical engineering Mechanics of Materials symbols Organic chemistry Degradation (geology) General Materials Science Polymer blend Cellulose Fourier transform infrared spectroscopy Photodegradation Raman spectroscopy |
| Zdroj: | Journal of Materials Science. 40:4189-4198 |
| ISSN: | 1573-4803 0022-2461 |
| DOI: | 10.1007/s10853-005-2821-y |
| Popis: | Polyethylene, cellulose and their blends with different compositions (5–30% cellulose content) were exposed to UV radiation or composted in soil for bio-degradation. Both types of degradation were carried out under laboratory conditions (room temperature, air atmosphere). The course of degradation processes has been studied using ATR-FTIR and Raman spectroscopies. There are practically no changes in spectra of photo- or bio-degraded pure PE films and cellulose powders. In contrast, the PE/cellulose blends are less stable than pure components and the processes of photodegradation seem to depend on blend composition and irradiation time. Prolonged UV exposure (100 h) leads to efficient photo-oxidation of blends studied. Biodegradation effect was also pronounced in PE films containing 30% cellulose. |
| Databáze: | OpenAIRE |
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