期刊
PACKAGING TECHNOLOGY AND SCIENCE
卷 20, 期 4, 页码 293-297出版社
WILEY
DOI: 10.1002/pts.766
关键词
hydrophilicity; plasma deposition; chitosan; HMDS; barrier properties
This study evaluated the effects of the deposition of a thin hydrophobic silicon coating onto a polysaccharide film's surface. The goal was to improve the water vapour barrier of the hydrophilic film in order to increase the film's usefulness in packaging applications. A cold-plasma technique was used to create a thin hexamethyldisilazane deposition on a chitosan film surface. The modification was investigated using Fourier transform infrared. The effect on the surface was characterized through contact angle measurements and degree of swelling. A significant reduction in hydrophilicity and water vapour permeability was observed. Gas barrier measurements indicated that there were no substantial differences in O-2 and CO2 permeabilities under the conditions used in this investigation. Copyright (c) 2007 John Wiley & Sons, Ltd.
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