Characterization using X-ray diffraction and study of the crystallinity of the thermoplastic starch/poly(butylene adipate-co-terephthalate) blends irradiated by gamma rays / Caracterização por DRX e estudo de cristalinidade de blendas de amido termoplástico/poli (butileno adipato-co-tereftalato) irradiadas por raios gama

Authors

  • Dione Pereira de Castro Brazilian Journals Publicações de Periódicos, São José dos Pinhais, Paraná
  • Rafael Henrique Lazzari Garcia
  • Leonardo Gondim de Andrade e Silva

DOI:

https://doi.org/10.34117/bjdv6n3-005

Keywords:

Crystallinity, XRD, Blends, TPS, PBAT.

Abstract

The aim of this study was to analyze the changes in the structure and crystallinity of non-irradiated and irradiated thermoplastic starch blends (TPS)/poly (butylene adipate-co-terephthalate) - PBAT and also to evaluate the behavior of castor oil replacing glycerol. In this work, the characterization was performed by using X-ray diffraction (XRD), in which the crystallinity index (IC) of non-irradiated and irradiated blends of TPS/PBAT was calculated, through the software Bruker DIFFRAC.EVA® v4.22. For the plastification of the TPS, glycerol, castor oil and TWEEN® 80 were used to verify their compatibility and establish a comparison among the blends. The samples were prepared by extrusion and irradiated at 25 kGy with gamma rays with a 60Co source. However, the crystallinity indexes of the blends were altered according to the plasticizer used and the use of TWEEN® 80. Thus, it was concluded that replacing glycerol with castor oil is feasible in TPS/PBAT blends.

References

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Published

2020-03-02

How to Cite

Castro, D. P. de, Garcia, R. H. L., & Silva, L. G. de A. e. (2020). Characterization using X-ray diffraction and study of the crystallinity of the thermoplastic starch/poly(butylene adipate-co-terephthalate) blends irradiated by gamma rays / Caracterização por DRX e estudo de cristalinidade de blendas de amido termoplástico/poli (butileno adipato-co-tereftalato) irradiadas por raios gama. Brazilian Journal of Development, 6(3), 9635–9643. https://doi.org/10.34117/bjdv6n3-005

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Section

Original Papers