Image from Google Jackets

The effect of UV-irradiation on composting of polyethylene modified by cellulose

Tipo de material: TextoTextoSeries ; Polymer Degradation and Stability, 91, p.2282-2291, 2006Trabajos contenidos:
  • Kaczmarek, H
  • Oldak, D
Tema(s): Recursos en línea: Resumen: LDPE and its blend with cellulose, obtained by extrusion, were UV-irradiated with different doses or biodegraded in soil up to 1 year. Simul-taneously, the same samples were 1 year biodegraded after 20 h UV pre-irradiation in the same conditions. The course of photo- and biodegra-dation 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 PEþcellulose is hampered by intermolecular crosslinking of both components.Although, the rate of decomposition of PEþcellulose blends is low it is enough for disintegration of such materials in the natural environment.
Tags from this library: No tags from this library for this title. Log in to add tags.
Star ratings
    Average rating: 0.0 (0 votes)
Holdings
Item type Current library Collection Call number Status Date due Barcode
Documentos solicitados Documentos solicitados CICY Documento préstamo interbibliotecario Ref1 B-14811 (Browse shelf(Opens below)) Available

LDPE and its blend with cellulose, obtained by extrusion, were UV-irradiated with different doses or biodegraded in soil up to 1 year. Simul-taneously, the same samples were 1 year biodegraded after 20 h UV pre-irradiation in the same conditions. The course of photo- and biodegra-dation 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 PEþcellulose is hampered by intermolecular crosslinking of both components.Although, the rate of decomposition of PEþcellulose blends is low it is enough for disintegration of such materials in the natural environment.

There are no comments on this title.

to post a comment.