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Fumasep FS-9100-PK membrane is perfluorinated cation exchange membrane – PK-reinforced with low resistance, high mechanical stability, high selectivity and high chemical / oxidative stability.
Fumasep FS-9100-PK membrane comes in either a 10cm x 10cm or 20cm x 30cm size sheet.
Fumatech membranes are highly sensitive to differences in humidity and moisture content. Therefore the membranes can vary +/- 0.5cm from the original cut sizes. Also due to this sensitivity the manufacturer expects wrinkles to form, however soaking the membranes in deionized water will return the membranes to the full size planar state according to the manufacturer.
• Applications: Electrochemical processes requiring cation exchange membranes with high oxidative stability such as water electrolysis, fuel cells, redox-flow batteries etc.
• Cation Exchange Membrane
• Thickness (dry): 85 – 100 micrometers (3.3 - 3.9 mil)
• Sizes: 10cm x 10cm, 20cm x 30cm
The membrane is trans-illuminant, but not fully transparent having color of yellow to beige. The membrane is delivered without any backing or protection foil.
Keep membrane package closed / sealed when unused. Store, handle and process the membrane in a clean and dust-free area. Use only new and sharp knives or blades, when cutting the membrane. Always wear protective gloves when handling the membrane. Handle with care, be sure not to puncture, crease or scratch the membrane, otherwise leaks will occur. All surfaces in contact with the membrane during handling, inspection, storage and mounting must be smooth and free of sharp projections. Membranes will expand and contract based on water / electrolyte content.
The membrane is delivered in H-form and activated dry form. No further treatment is required. Membranes will expand and contract based on moisture content. If you have any concerns about storage, chemical stability, and pre-treatment please feel free to contact us for further information.
Please note that a current lead time of four to six weeks is to be expected.
|Membrane||Cation Exchange Membrane|
|Thickness||85 – 100 µm (microns)|
|Appearance / Color||Trans-illuminant, but not fully transparent / yellow to beige|
|Tensile Strength - max. (MPa)||33 – 40 MPa|
|Elongation to Break (%)||38 – 42|
|Area Specific Resistance (ohm cm²)||< 0.45|
|Young’s modulus at 23 °C / 50 % r.h.||> 700 MPa|
|Counter Ion||H+ form|
|Ion Exchange Capacity||1.08 - 1.15 meq.g^-1|
|Selectivity||> 95% (0.1 / 0.5 mol/kg KCl at T = 25 °C)|
|Weight Per Unit Area||19 – 21 g cm^-2|
|Bubble Point Test in Water at 25°C||> 3 bar|
|Conductivity (mS/cm)||> 80|
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