Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5204954 | Polymer Degradation and Stability | 2006 | 6 Pages |
Abstract
LLDPE-based nanocomposites undergo faster photo-oxidation than the unfilled matrix and the extent of their physical properties deterioration, namely elongation at break and tensile strength, is dependent on the organo-nanoclay loading. The observed acceleration is not due to faster photo-oxidation but rather due to a reduction of the oxidation induction time. The presence in the organoclays of trace amounts of metal ions may be promoting catalytic photodegradation. While UV absorbers provide useful protection, use of a metal deactivator has been found to greatly enhance the photo-stability of the LLDPE-based nanocomposites. Combinations of a metal deactivator and UV absorber yield synergistic effects.
Related Topics
Physical Sciences and Engineering
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Authors
F.P. La Mantia, N. Tzankova Dintcheva, V. Malatesta, F. Pagani,