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Fumapem AP-30 is a non-reinforced Polybenzimidazole Copolymer membrane designed for use in High-Temperature Proton Electrolyte Membrane Fuel Cells (HT-PEMFC). The polymer backbone for this HT-PEMFC membrane is categorized as a hydrocarbon polymer material.
Fumapem AP-30 membrane comes in either a 10cm x 10cm or 20cm x 30cm size sheet. The membrane is the brown foil delivered in dry non-doped form.
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: High-Temperature PEM Fuel Cell (HT-PEMFC)
• PBI Copolymer
• Thickness (dry): 25 - 35 micrometers (0.98 - 1.38 mil)
• Sizes: 10cm x 10cm, 20cm x 30cm
The membrane is the brown foil delivered in dry non-doped form.
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 doping shall be done by user. A general non-binding recommendation: Soak the membrane in 85 wt % H3PO4 at room temperature. Rise the temperature up to 130-140 °C and keep it for at least 6 hours. Membranes must be soaked completely in phosphoric acid. Please consider the membrane will expand during the doping process. Good performance of membrane is achieved when doping level reaches at least 280 % since the performance depends strongly on the doping level. Be sure no significant color change of the phosphoric acid is observed at the end of doping procedure. This can happen by over-doping, which has also negative impact on mechanical properties of membrane.
Remark: Fuel Cell Store bears no responsibility for applied doping procedure.
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.
|Thickness||25 - 35 µm (microns)|
|Appearance / Color||Brown, Transparent|
|Weight Per Unit Area||6 - 7.5 mg cm2|
|Residual Solvent / Additive Content||< 5|
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