Sorption of organic liquids and vapors by rigid PVC
โ Scribed by Alan R. Berens
- Publisher
- John Wiley and Sons
- Year
- 1989
- Tongue
- English
- Weight
- 662 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0021-8995
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๐ SIMILAR VOLUMES
Immersion experiments with Aflas (I), poly(tetrafluoroethylene-co-propylene), and Fluorel (II) [poly(vinylidene fluoride-co-perfluoropropylene)], showed greater swelling of I in nonpolar liquids and much higher swelling of II in polar liquids: over 100% (wt/wt) in two ketones and a phosphate ester.
The effect of penetrant diffusion on the barrier properties of PVC geomembranes have been determined for the following organic environmental contaminants: benzene, dichloromethane, and trichloroethylene. The membranes experienced swelling to a degree which depends on the type of penetrant used. Some
During supposedly isothermal sorption/desorption of gases or vapors by solid polymers, latent heat effects alter local temperatures with the result that diffusion behavior may appear to be non-Fickian. Even when sorption curves are seemingly Fickian, spurious values of the diffusion coefficient, D,