Chemical compatibility testing of geomembranes – sorption/desorption, diffusion, permeation and swelling phenomena
| Autor: | H. G. Naik, Tejraj M. Aminabhavi |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
Arrhenius equation
Materials science Diffusion Sorption Permeation Geotechnical Engineering and Engineering Geology Condensed Matter::Soft Condensed Matter Linear low-density polyethylene symbols.namesake Low-density polyethylene Geomembrane symbols General Materials Science High-density polyethylene Composite material Civil and Structural Engineering |
| Zdroj: | Geotextiles and Geomembranes. 16:333-354 |
| ISSN: | 0266-1144 |
| DOI: | 10.1016/s0266-1144(98)00017-x |
| Popis: | The laboratory test results of 14 organic liquids (widely varying in nature) for high density polyethylene, linear low density polyethylene, very low density polyethylene and polypropylene geomembranes are presented at 25, 50 and 70°C. The partition coefficients have been calculated by monitoring the increase in mass of geomembrane immersed in the fluid of interest from its initial value until the mass of geomembrane becomes constant. From such data, diffusion and permeation coefficients have been calculated using Fick’s equation from the initial linear portions of the sorption curves. Swelling of the geomembranes has also been studied from a measurement of an increase in volume, thickness and diameter. From a temperature dependence of sorption, diffusion and permeation coefficients, the Arrhenius parameters have been calculated. |
| Databáze: | OpenAIRE |
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