The relation between the moisture vapour permeability and moisture vapour adsorption of regenerated cellulose films

Hydrophilic, regenerated cellulose films are characterized by certain adsorption properties. These investigations were aimed at determining to what extent the moisture content of a film might decide its barrier capacity against water vapour. The experimental materials were an unlacquered regenerated...

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Bibliographic Details
Published in:Packaging technology & science 1999-07, Vol.12 (4), p.179-183
Main Author: Lisińska-Kuśnierz, Malgorzata
Format: Article
Language:English
Subjects:
adsorption properties
Application fields
Applied sciences
Biological and medical sciences
Exact sciences and technology
Food industries
Fundamental and applied biological sciences. Psychology
Gas adsorption
General aspects
Handling, storage, packaging, transport
Mechanical permeability
Moisture
Plastic films
Polymer industry, paints, wood
regenerated cellulose films
Technology of polymers
water vapour permeability
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Summary:Hydrophilic, regenerated cellulose films are characterized by certain adsorption properties. These investigations were aimed at determining to what extent the moisture content of a film might decide its barrier capacity against water vapour. The experimental materials were an unlacquered regenerated cellulose film 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 films at different values of ambient relative humidity. In addition, we determined the functional relation between the water vapour permeability of the films under investigation and their moisture contents and equilibrium ambient relative humidity values. Copyright © 1999 John Wiley & Sons, Ltd.
ISSN:0894-3214
1099-1522
DOI:10.1002/(SICI)1099-1522(199907/08)12:4<179::AID-PTS469>3.0.CO;2-9