Improvement of photo-stability of LLDPE-based nanocomposites

Research output: Contribution to journalArticle

52 Citations (Scopus)

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 UVabsorber yield synergistic effects.
Original languageEnglish
Pages (from-to)3208-3213
JournalPolymer Degradation and Stability
Volume91
Publication statusPublished - 2006

Fingerprint

Linear low density polyethylenes
Photooxidation
photooxidation
Nanocomposites
nanocomposites
Metals
Organoclay
Photodegradation
deterioration
metals
tensile strength
elongation
Metal ions
Deterioration
Elongation
metal ions
absorbers
induction
Tensile strength
Physical properties

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Materials Chemistry
  • Polymers and Plastics
  • Mechanics of Materials

Cite this

Improvement of photo-stability of LLDPE-based nanocomposites. / La Mantia, Francesco Paolo; Dintcheva, Nadka Tzankova; Pagani; Malatesta.

In: Polymer Degradation and Stability, Vol. 91, 2006, p. 3208-3213.

Research output: Contribution to journalArticle

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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 UVabsorber yield synergistic effects.",
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AU - Dintcheva, Nadka Tzankova

AU - Pagani, null

AU - Malatesta, null

PY - 2006

Y1 - 2006

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AB - 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 UVabsorber yield synergistic effects.

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