Nafion 117

Brand: Chemours
Product Code: 591239

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Nafion Membrane is used to separate the anode and cathode compartment of Proton Exchange Membrane fuel cells and water electrolyzers. The thickness of this particular cation exchange membrane, Nafion 117 makes it suitable for Direct Methanol Fuel Cells (DMFC). Nafion 117 is 183 micrometers (7.2 mil) thick.

Chemours (formerly DuPont) Nafion® 117 membranes are non-reinforced films 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. Nafion PFSA membranes are widely used for Proton Exchange Membrane (PEM) fuel cells and water electrolyzers. The membrane performs as a separator and solid electrolyte 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.

Nafion 115, 117, and 1110 Membrane Properties Sheet

Handling and Storage of Chemours Nafion Perfluorinated Membranes

Nafion Membrane Technical Bulletin No. 93-01 for "DRY" H+ Membrane Pretreatment

Membrane Properties
Thickness 183 micrometers (7.2 mil)
Basic Weight (g/m²) 360
Tensile Strength - max. (MPa) N/A
Non-Std Modulus (MPa) N/A
Elongation to Break (%) N/A
Tear Resistance - Initial (g/mm) N/A
Tear Resistance - Propagating (g/mm) N/A
Specific Gravity (23 °C, 50% RH) N/A
Available Acid Capacity (meq/g) N/A
Total Acid Capacity (meq/g) N/A
Conductivity (S/cm) N/A
Membrane Hydrolytic Properties
Water content (% water) N/A
Water uptake (% water) N/A
Linear Expansion % increase - 50% RH, 23°C to water soaked 23°C 10.0 - Method: ASTM D 756
Linear Expansion % increase - 50% RH, 23°C to water soaked 100°C 15.0 - Method: ASTM D 756

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