Direct measurement of permeabilities at high pressures
| Autor: | J. F. Roach, D. R. Wiff |
|---|---|
| Rok vydání: | 2001 |
| Předmět: |
chemistry.chemical_classification
Measurement method Materials science Polymers and Plastics business.industry chemistry.chemical_element General Chemistry Polymer Polyethylene Pressure difference chemistry.chemical_compound Permeability (earth sciences) chemistry Natural gas Polymer chemistry Materials Chemistry Permeability measurements Composite material business Helium |
| Zdroj: | Polymer Engineering & Science. 41:2200-2205 |
| ISSN: | 1548-2634 0032-3888 |
| DOI: | 10.1002/pen.10915 |
| Popis: | A new procedure for measuring the peermeability of a high pressure gas (10.34 MPa) through a polymeric material has been developed. The procedure employs a vacuum system on the low-pressure side of the material. Although it gives a pressure difference of seven orders of magnitude during testing, the real purpose of the vacuum system is to allow the permeability measurements to be made rapidly for a small amount of transported material. The permeability of several commercial polymers to either natural gas or helium has been measured and is reported. |
| Databáze: | OpenAIRE |
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