Factors affecting water vapor transmission through free polymer films
โ Scribed by J. Swarbrick; A. H. Amann; R. E. Lindstrom
- Publisher
- John Wiley and Sons
- Year
- 1972
- Tongue
- English
- Weight
- 352 KB
- Volume
- 61
- Category
- Article
- ISSN
- 0022-3549
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๐ SIMILAR VOLUMES
A novel method for measuring the permeation of water vapor through polymer films is described. A cellulose detector film incorporating cobalt chloride in a blue anhydrous form is sealed between two pieces of test film in a specially designed cell. The cell is placed in a controlled temperature and h
A theoretical equation has been developed justifying the graphical representation of vapor permeation data by l/rate versus film thickness plots. The permeability coefficient for the film may be determined from the slope of this plot and has units in square centimeters per second. The intercept at z