Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5205169 | Polymer Degradation and Stability | 2006 | 10 Pages |
Abstract
LDPE and its blend with cellulose, obtained by extrusion, were UV-irradiated with different doses or biodegraded in soil up to 1 year. Simultaneously, the same samples were 1 year biodegraded after 20Â h UV pre-irradiation in the same conditions. The course of photo- and biodegradation was monitored by estimation of average molecular weights and polydispersity, gel amount, changes of PE crystallinity and mechanical properties. Moreover, the biodegradation degree was calculated on the basis of carbon dioxide evolved and surface morphological changes were observed by SEM. It was found that biodegradation of PEÂ +Â cellulose is hampered by intermolecular crosslinking of both components. Although, the rate of decomposition of PEÂ +Â cellulose blends is low it is enough for disintegration of such materials in the natural environment.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Halina Kaczmarek, Dagmara OÅdak,