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Details for article 4 of 15 found articles
| Title: |
Determination of permeation parameters of experimental PET films coated with SiO x to ethyl acetate, oxygen and water vapour |
| Author: |
Adamantiadi, A. Badeka, A. Kontominas, M. G. |
| Appeared in: |
Food additives and contaminants. Pt. A, Chemistry, analysis, control, exposure & risk assessment |
| Paging: | Volume 18 (2001) nr. 11 pages 1046-1054 |
| Year: |
2001-11-01 |
| Contents: |
The permeation parameters of conventional PET films, films coated with SiO x and SiO x -coated films laminated to LDPE were determined for ethyl acetate using the permeation cell/gas chromatography method. Permeation to O 2 and water vapour was also determined to monitor overall changes in the barrier properties of the experimental films. Coating of the PET film was achieved by a 'directed evaporation' method that increased the yield of the coating process from 30-35 to > 70%. It was shown that the SiO x coating increased the film barrier to ethyl acetate by ~ 20-30 times. Permeation values showed low reproducibility, indicating the need for further development and standardization of the 'directed evaporation' web-coating process. The barrier to oxygen and water vapour increased by 20-25 and 12-14 times respectively after coating. The web-coating speed did not seem to influence the barrier properties of the films. Permeation coefficients, diffusion coefficients and solubility coefficients were calculated for all samples. |
| Publisher: |
Taylor & Francis |
| Source file: |
Elektronische Wetenschappelijke Tijdschriften |
Details for article 4 of 15 found articles
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