<b>Comparison between conventional and supercritical CO<sub>2</sub> processes in pet films sorption with dianix red dye</b> - DOI: 10.4025/actascitechnol.v25i1.2234

Authors

  • Aline Aparecida de Oliveira Barbosa UEM
  • Ana Claudia Ueda UEM
  • Juliana Emiko Itako UEM
  • Edvani Curty Muniz UEM
  • Nanci Pinheiro Povh UEM
  • Adley Forti Rubira UEM

DOI:

https://doi.org/10.4025/actascitechnol.v25i1.2234

Keywords:

poli (tereftalato de etileno), N-N-dimetilacrilamida, corante Vermelho Dianix

Abstract

The effects of modifying agents and dyeing conditions of dispersed dyes for PET films have been thoroughly studied. This research reports the dye incorporation processes in non-modified and modified N,N-dimethylacrylamide PET films with supercritical CO2 and with conventional process. The dye uptake was increased 1,6 times, in average, with N,N-dimethylacrylamide modified films. Using a conventional process, the amount of sorbet dye in the modified PET films was 2 times higher when compared to the non-modified ones. The dye incorporated in the PET film was extracted using N,N-dimethylformamide and its amount was determined by UV-VIS spectroscopy at 520nm.

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Published

2008-04-15

How to Cite

Barbosa, A. A. de O., Ueda, A. C., Itako, J. E., Muniz, E. C., Povh, N. P., & Rubira, A. F. (2008). <b>Comparison between conventional and supercritical CO<sub>2</sub> processes in pet films sorption with dianix red dye</b> - DOI: 10.4025/actascitechnol.v25i1.2234. Acta Scientiarum. Technology, 25(1), 27–31. https://doi.org/10.4025/actascitechnol.v25i1.2234

Issue

Vol. 25 No. 1 (2003)

Section

Chemical Engineering

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