Journal
POLYMER DEGRADATION AND STABILITY
Volume 94, Issue 10, Pages 1646-1655Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.polymdegradstab.2009.07.001
Keywords
Poly(lactic acid); Nanocomposites; Biodegradation; Microbial degradation
Categories
Funding
- Universita degli Studi di Torino
- NoE NANOFUN-POLY
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PLA nanocomposites based on organically modified montmorillonites at 5% w/w loading were prepared by melt blending using an internal mixer and then degraded in a commercial compost. The addition of nanoclays was found to increase the PLA degradation rate, especially for the highest dispersed clay in the polymer matrix. Biodegradation by microorganisms isolated from the compost showed the bacterium Bacillus licheniformis as one of the responsible for PLA biodegradation in compost. It was also found that clays can influence the polymer bacterial degradation depending on their chemical structure and affinity of the bacterium towards the clay. (C) 2009 Elsevier Ltd. All rights reserved.
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