| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5205679 | Polymer Testing | 2017 | 6 Pages |
Abstract
Different polyethylene terephthalate films were investigated as to the permeation and diffusity for water vapour and as to structure-property correlations. Water vapour transmission rate, permeability and diffusion coefficient were measured at temperatures 23, 38, 60 and 80 °C using a special test device with a mass spectrometer detection unit. While the permeability was significantly dependent on temperature and specimen thickness, the effect of TiO2 white pigmentation was negligible. Based on the empirical data a model for the temperature and film thickness dependency of the water vapour permeability was established and validated.
Related Topics
Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
P. Hülsmann, G.M. Wallner,