Journal
POLYMER DEGRADATION AND STABILITY
Volume 93, Issue 7, Pages 1364-1369Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.polymdegradstab.2008.03.026
Keywords
PHBV; PDLLA; PEG; mechanical properties; degradation properties
Categories
Ask authors/readers for more resources
The mechanical, thermal and biodegradable properties of poly(d,l-lactide) (PDLLA) poly(3-hydroxyybutyrate-co-3-hydroxyvalerate) (PHBV) and poly(ethylene glycol) (PEG) blends were studied. The influence of PEG on the tensile and impact strengths of the blends was investigated. The results showed that the toughness and elongation at break of the PDLLA/PHBV (70/30) blends were greatly improved by the addition of PEG, and the notched Izod impact strength increased about 400% and the elongation at break increased from 2.1% to 237.0%. The thermal and degradation properties of the blends were investigated by differential scanning calorimeter (DSC) and thermogravimetric analyzer (TGA), it was found that the thermal stability of PHBV in the presence of PDLLA was improved. The degradation test showed that the addition of PEG could notably accelerate the biodegradation of the blends in the soil at room temperature, and the mass loss is about 20% after 30 days of the storage. (C) 2008 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available