The relation between the moisture vapour permeability and moisture vapour adsorption of regenerated cellulose films
✍ Scribed by Malgorzata Lisińska-Kuśnierz
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 283 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0894-3214
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✦ Synopsis
Hydrophilic, regenerated cellulose ®lms are characterized by certain adsorption properties. These investigations were aimed at determining to what extent the moisture content of a ®lm might decide its barrier capacity against water vapour. The experimental materials were an unlacquered regenerated cellulose ®lm and one varnished on both the sides with nitrocellulose lacquer. The investigations allowed us to propose some models that formally describe the adsorption process of water vapour through ®lms at different values of ambient relative humidity. In addition, we determined the functional relation between the water vapour permeability of the ®lms under investigation and their moisture contents and equilibrium ambient relative humidity values.