Effect of Thickness on Permeability

  • Sun-Tak Hwang
  • Karl Kammermeyer
Part of the Polymer Science and Technology book series (PST, volume 6)


When the observed permeability changes as a function of membrane thickness, there are two reasons. One is the presence of boundary layers or interfacial resistances. The other is variation of permeability throughout the membrane, as in the case of laminated film composites of different permeability layers. Examples of both cases are presented and analyzed to elucidate internal and external phenomena of the membrane processes. This type of thickness analysis is completely general and can be applied to any membrane process.


Membrane Thickness Critical Thickness Boundary Resistance Intrinsic Permeability Permeation Flux 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Plenum Press, New York 1974

Authors and Affiliations

  • Sun-Tak Hwang
    • 1
  • Karl Kammermeyer
    • 1
  1. 1.Department of Chemical and Materials EngineeringThe University of IowaIowa CityUSA

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