The influence of manufacturing parameters on the properties of macroporous Zirfon (R) separators

The manufacturing of the macroporous Zirfon (R) separator is based on the film casting technique. This film casting technique allows different manufacturing steps to be varied in order to adapt both the composition and the structure of the separator to the specific requirements of the application. The Zirfon (R) separators can be used in alkaline electrochemical cells as a replacement of asbestos. At a temperature of 30 C the ionic resistance of the separator is as low as about 0.01 Omega Bubble-Point (BP) pressures as high as 1 MPa could be obtained.