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Simple universal permeation apparatus
Author(s) -
AlAti Tareq,
Garza Jorge,
Hotchkiss Joseph H.
Publication year - 2003
Publication title -
packaging technology and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.365
H-Index - 50
eISSN - 1099-1522
pISSN - 0894-3214
DOI - 10.1002/pts.632
Subject(s) - vapours , permeation , process engineering , thermal diffusivity , solubility , permeability (electromagnetism) , moisture , organic chemicals , materials science , chemistry , chemical engineering , thermodynamics , engineering , organic chemistry , membrane , physics , environmental chemistry , biochemistry , neuroscience , biology
A number of methods and commercial apparatuses for measuring the permeability of polymeric films and sheet materials have been successfully developed. Generally, the equipment is complex, expensive and specific to certain permeants, but all operate on similar basic principles. Because of our interest in a wide range of permeants, including fixed gases and organic vapours, we have built an inexpensive apparatus that can measure permeation to gas, moisture and organic vapours. We also require outputs that can provide not only permeability data but also proved solubility and diffusion coefficients. The apparatus is built around a commercially available thermal conductivity detector. Copyright © 2003 John Wiley & Sons, Ltd.