Biodegradation of the Films of PP, PHBV and Its Blend in Soil
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Data
2009-12-01
Autores
Goncalves, S. P. C. [UNESP]
Martins-Franchetti, S. M. [UNESP]
Chinaglia, D. L. [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Springer/plenum Publishers
Resumo
Films of poly(hydroxybutyrate-co-hydroxyvalerate) (PHBV) and poly(propylene) (PP), PP/PHBV (4:1), blends were prepared by melt-pressing and investigated with respect to their microbial degradation in soil after 120 days. Biodegradation of the films was evaluated by Fourier transform infrared spectroscopy, scanning electron microscopy, differential scanning calorimetry, and X-ray diffraction. The biodegradation and/or bioerosion of the PP/PHBV blend was attributed to microbiological attack, with major changes occurring at the interphases of the homopolymers. The PHBV film was more strongly biodegraded in soil, decomposing completely in 30 days, while PP film presented changes in amorphous and interface phase, which affected the morphology.
Descrição
Palavras-chave
Biodegradation, Blend, FTIR, DSC, X-Ray
Como citar
Journal of Polymers and The Environment. New York: Springer/plenum Publishers, v. 17, n. 4, p. 280-285, 2009.