Estudos de sorção do corante vermelho dianix em filmes de pet através dos processos convencional e CO2 supercrítico - DOI: 10.4025/actascitechnol.v25i1.2234

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

doi:10.4025/actascitechnol.v25i1.2234

Comparison between conventional and supercritical CO2 processes in pet films sorption with dianix red dye - DOI: 10.4025/actascitechnol.v25i1.2234

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

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). Comparison between conventional and supercritical CO2 processes in pet films sorption with dianix red dye - DOI: 10.4025/actascitechnol.v25i1.2234. Acta Scientiarum. Technology, 25(1), 27-31. https://doi.org/10.4025/actascitechnol.v25i1.2234

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Issue

Vol 25 No 1 (2003)

Section

Chemical Engineering

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