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

被引:0
|
作者
Lisinska-Kusnierz, M [1 ]
机构
[1] Cracow Univ Econ, Fac Commod Sci, Dept Packaging Educ, PL-30033 Krakow, Poland
关键词
regenerated cellulose films; adsorption properties; water vapour permeability;
D O I
暂无
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
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 wafer 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 (C) 1999 John Wiley & Sons, Ltd.
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页码:179 / 183
页数:5
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