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Polymer Bulletin

, Volume 76, Issue 1, pp 291–301 | Cite as

PBAT/organoclay composite films—part 2: effect of UV aging on permeability, mechanical properties and biodegradation

  • Gabriella A. M. Falcão
  • Tatiara G. AlmeidaEmail author
  • Marcelo A. G. Bardi
  • Laura H. Carvalho
  • Eduardo L. Canedo
Original Paper
  • 50 Downloads

Abstract

Biodegradable alternatives are required in order to minimize the environmental impacts caused by inadequate disposal of plastics, especially fast-discharge plastics such as those used in the packaging. This work studied the permeability, mechanical properties and biodegradability of PBAT/organoclay composite films. The materials were melt-mixed in an internal laboratory mixer, and films containing 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 biodegradation depend on filler content and that oxygen and carbon dioxide permeabilities 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 packaging.

Keywords

PBAT Organoclay Films Biodegradability UV aging 

Notes

Acknowledgements

The authors thank the Conselho Nacional de Pesquisa (CNPq) e Coordenação de Aperfeiçoamento de Pessoal Superior (CAPES), Grant # 473622/2013-0, for financial support.

Supplementary material

289_2018_2385_MOESM1_ESM.docx (20 kb)
Supplementary material 1 (DOCX 19 kb)

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Materials EngineeringFederal University of Campina GrandeCampina GrandeBrazil

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