Transfer of liquids between plasticized PVC and acetic acid. Model and experiment
| Autor: | J.M. Vergnaud, J.L. Taverdet, A. Manoussaki-Grigorakakis |
|---|---|
| Rok vydání: | 1985 |
| Předmět: |
chemistry.chemical_classification
Polymers and Plastics Chemistry Diffusion Organic Chemistry Kinetics Plasticizer General Physics and Astronomy Polymer Thermal diffusivity Acetic acid chemistry.chemical_compound Chemical engineering Scientific method Polymer chemistry Materials Chemistry medicine Swelling medicine.symptom |
| Zdroj: | European Polymer Journal. 21:967-972 |
| ISSN: | 0014-3057 |
| DOI: | 10.1016/0014-3057(85)90183-1 |
| Popis: | When plasticized PVC is in contact with acetic acid, there is simultaneous diffusion of the liquid into, and the plasticizer out of the polymer. These transfers are controlled by diffusion in the unsteady state, with concentration-dependent diffusivity for both liquids. The transfer process is complicated for acetic acid, because the amount transferred rises quickly to a maximum with a resulting swelling of polymer, and then decreases to the equilibrium value. A model is used for calculating the amount of the liquids transferred at various times, as well as the profiles of concentration developed through the PVC. Short tests help to give information on the kinetics of these transports. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|