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Fumasep FAPQ-375-PP is a Fluorinated PP Reinforced Anion Exchange Membrane (AEM) with low resistance, high blocking capability of vanadium ions and high stability in acidic environment.
The membrane is the transcluent to white colored component inside the sealed bag. The membrane is ready for use.
Operation range: Acidic environment pH < 4. The material is not stable in caustic environment (pH > 11).
Important remark: the membrane can be operated also at pH 6-8 as it features anion-exchange conductivity also in neutral environment.
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: Redox-Flow Battery (e.g. Vanadium Redox Flow Battery), using aqueous acidic conditions
• Anion Exchange Membrane (AEM)
• Thickness: 68 - 82 micrometers (2.67 - 3.22 mil)
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.
The membrane does not need any pretreatment and is ready for use. Please assemble the membrane in dry state.
If you have any concerns about storage, chemical stability, pre-treatment or before proceeding, please feel free to contact us for further information.
The membrane can be stored dry for an unlimited amount of time. However, the membrane has to be conditioned (washed and rinsed) prior to use.
|Membrane||Anion Exchange Membrane|
|Thickness||68 - 82 µm (microns)|
|Appearance / Color||Translucent to white|
|Tensile Strength - max. (MPa)||35 - 45 MPa|
|Density||8.5 - 10 mg•cm-2|
|Non-Std Modulus (MPa)||400 - 550 MPa|
|Yield Strength at 23°C / 50 % R.H.||15 - 22 MPa|
|Elongation to Break (%)||22 - 35 %|
|Specific Area Resistance||< 1.5 (in Cl- form) Ω•cm2|
|Selectivity||> 90 %|
|Uptake in H2O at 25°C||25 wt %|
|Dimensional Swelling in H2O at 25°C||< 3 %|
|Proton Transfer Rate||> 500 µmol•min-1•cm-2|
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