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Soarnol Data

Various Gases Barrier Property of "Soarnol®"

Various gases barrier property of "Soarnol®" is shown in the following.
Permeability for various gases is expressed by the following formula.

P=D·S

 Here P : Permeability coefficient, D : Diffusion coefficient, S : Solubility coefficient By comparison of N2, O2 and CO2, the difference of each gas permeability is due to the difference of solubility between gas molecule and "Soarnol®" for each gas.
 On the other hand, by comparison of He and other gases, the difference of gas permeability is due to the difference of diffusion between He molecule and other gas molucule for "Soarnol®".

Condition : 20deg C, Dry atmosphere
Dry film, with Differential Pressure Method
Sample Gas Permeability（cc 20µm/m2 day atm）
N2 O2 CO2 He
Soarnol 29mol% 0.018 0.23 0.49 110
Soarnol 32mol% 0.024 0.3 0.62 120
Soarnol 38mol% 0.041 0.53 1.3 180
Soarnol 44mol% 0.1 1.2 4.4 320
ONy 11 24 180 1,700
PET 7.8 30 96 2,600
OPP 600 1,400 10,500 25,000

Data Prepared : 1 Sep. 2003

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