Measuring temperature-dependent water vapor and gas permeation through high barrier films
- Fraunhofer Institute for Solar Energy Systems (ISE), Heidenhofstr. 2, 79110 Freiburg (Germany)
A new test device for temperature-dependent permeation measurement, existing of a mass spectrometer and sample holders inside a climatic chamber was developed. The front face of a sample is loaded with the atmosphere in the cabinet or a test gas mixture, respectively. The permeated species are accumulated in a cell behind the sample. The increasing partial pressures of the permeants are measured by the mass spectrometer and than transferred into a transmission rate. The time-lag technique enables the determination of the diffusion coefficient. Results are given for atmospheric components as O{sub 2}, N{sub 2}, and water vapor permeated through different barrier films and laminates at temperatures from 23 to 80 deg. C. The limits of the detection of the transmission rates are in the range of 10{sup -6} g/m{sup 2} d.
- OSTI ID:
- 22051087
- Journal Information:
- Review of Scientific Instruments, Vol. 80, Issue 11; Other Information: (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
- Country of Publication:
- United States
- Language:
- English
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