Polym. Bull. https://doi.org/10.1007/s00289-018-2385-z ORIGINAL PAPER PBAT/organoclay composite films—part 2: effect of UV aging on permeability, mechanical properties and biodegradation 1 1 1 Gabriella A. M. Falcão · Tatiara G. Almeida · Marcelo A. G. Bardi · 1 1 Laura H. Carvalho · Eduardo L. Canedo Received: 20 February 2018 / Revised: 25 April 2018 / Accepted: 23 May 2018 © Springer-Verlag GmbH Germany, part of Springer Nature 2018 Abstract Biodegradable alternatives are required in order to minimize the envi- ronmental impacts caused by inadequate disposal of plastics, especially fast-dis- charge plastics such as those used in the packaging. This work studied the perme- ability, mechanical properties and biodegradability of PBAT/organoclay composite films. The materials were melt-mixed in an internal laboratory mixer, and films con - taining 1, 3 and 5% of organoclay were prepared in a chill roll extruder. The samples were subjected to UV radiation, and their properties were evaluated before and after accelerated aging. Results show that tensile properties, gas permeability and biodeg- radation depend on filler content and that oxygen and carbon dioxide permeabili - ties were affected by UV aging. Although the mechanical properties are negatively affected by filler incorporation, oxygen and carbon dioxide permeabilities decreased and biodegradability increased in the composites, making them an interesting option for use in
Polymer Bulletin – Springer Journals
Published: May 29, 2018
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