Resumo

VICHESSI, Raquel B.  e  RUVOLO FILHO, Adhemar C.. Study of the UV ageing effect on water transport through PET films recycled from beverage bottles. Polímeros [online]. 2008, vol.18, n.4, pp.326-333. ISSN 1678-5169.  https://doi.org/10.1590/S0104-14282008000400012.

This work describes a study about the UV ageing effect on water transport through PET film sheets recycled from beverage bottles. Using a thermodynamic formalism based on the Eyring relationship and results of water permeability coefficient, it is possible to determine the entropy and enthalpy of activation for the water transport process. These functions were correlated using the compensation thermodynamic plot and correlations were made between the degradation of the PET samples, measured by FTIR, and transport properties. Also, possible effects from the presence of stabilizers, pigments and processing history were analyzed.

Palavras-chave : PET; recycling; water transport; thermodynamic compensation effect; degradation; FTIR.

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