Proton Exchange Membranes (PEM) are based on chemically stabilized perfluorosulfonic acid/PTFE copolymer in the acid (H+) form. The physical properties remain the same for the chemically stabilized membranes, which exhibit substantially lower fluoride ion release compared to the non-stabilized polymer – a sign of improved chemical durability. Some Proton Exchange Membranes with low thickness are additionally reinforced to maintain mechanical stability.

Application note Proton Exchange Membranes are widely used for PEM fuel cells and water electrolyzers. They perform as a separator and solid electrolytes in a variety of electrochemical cells that require the membrane to selectively transport cations across the cell junction. The polymer is chemically resistant and durable. The membrane may be protected from both or one side by a transparent foil, which should be removed before usage.

average thickness: Nafion N-424 - 380 μm, Nafion N-551 WX - 180 μm, Nafion N-438 - 305 μm, Nafion XL - 22.7 μm, Nafion HP - 22 μm, Nafion NR-212 - 50 μm, Nafion N-117 - 184 μm, Nafion NR-211 – 25.4 μm, Nafion N-115 – 130 μm, Nafion NE-1035 - 89 μm, PFSA D170-U - 170 μm, PFSA D125-U - 125 μm, PFSA D50-U 50 μm, PFSA D50-R ePTFE Reinforced - 50 μm, PFSA D15-R ePTFE Reinforced - 15 μm

Product includes 100 pcs of Proton Exchange Membrane