In this paper the photo-oxidation behaviour of polyolefin/clay nanocomposite films was studied; in particular, the effect of the amount of organo-modifier and the matrix polarity on the photo-oxidation was investigated. Two different organo-modified clays and compositions of LDPE/EVA blend films were used and the photo-oxidation was followed by mechanical and spectroscopic analyses. The organoclay and matrix type strongly influence the photo-oxidative behaviour of nanocomposite films. The films filled with CL15A show a faster loss of mechanical performance and higher carbonyl formation with respect to the films filled with the CL20A. Additionally, the LDPE based nanocomposite undergoes photo-oxidation more rapidly than the EVA based one.
Botta, L., Dintcheva, N.T., La Mantia, F.P. (2009). The role of organoclay and matrix type in photo-oxidation of poliolefin/clay nanocomposite films. POLYMER DEGRADATION AND STABILITY, 94(4), 712-718 [10.1016/j.polymdegradstab.2008.12.017].
The role of organoclay and matrix type in photo-oxidation of poliolefin/clay nanocomposite films
BOTTA, Luigi;DINTCHEVA, Nadka Tzankova;LA MANTIA, Francesco Paolo
2009-01-01
Abstract
In this paper the photo-oxidation behaviour of polyolefin/clay nanocomposite films was studied; in particular, the effect of the amount of organo-modifier and the matrix polarity on the photo-oxidation was investigated. Two different organo-modified clays and compositions of LDPE/EVA blend films were used and the photo-oxidation was followed by mechanical and spectroscopic analyses. The organoclay and matrix type strongly influence the photo-oxidative behaviour of nanocomposite films. The films filled with CL15A show a faster loss of mechanical performance and higher carbonyl formation with respect to the films filled with the CL20A. Additionally, the LDPE based nanocomposite undergoes photo-oxidation more rapidly than the EVA based one.File | Dimensione | Formato | |
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