Nafion™ 212

Nafion™ 212
Nafion™ 212
Brand: Dupont
Product Code: N212
Availability: In Stock
Price: $24.00

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Untreated Nafion™ 212 is 50.8 micrometers (2 mil) thick. The membrane is positioned between a backing film and a coversheet.

Chemours' Nafion™ 212 membranes are based on chemically stabilized perfluorosulfonic acid/PTFE copolymer in the acid (H+) form, and 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.

View the Nafion™ product data sheets below for more information on each type:

Properties
Thickness 50.8 micrometers (2 mil)
Basic Weight (g/m²) 100
Tensile Strength - max. (MPa) 32 (MD), 32 (TD) - Method: ASTM D 882
Non-Std Modulus (MPa) 266 (MD), 251 (TD) - Method: ASTM D 882
Elongation to Break (%) 343 (MD), 352 (TD) - Method: ASTM D 882
Hydrogen Crossover (ml/min·cm²) < 0.010
Specific Gravity (23 °C, 50% RH) 1.97
Available Acid Capacity (meq/g) 0.92 min.
Total Acid Capacity (meq/g) 0.95 to 1.01
Hydrolytic Properties
Water content (% water) 5.0 ± 3.0% - Method: ASTM D 570
Water uptake (% water) 50.0 ± 5.0% - Method: ASTM D 570
Linear Expansion % increase - 50% RH, 23°C to water soaked 23°C 10 - Method: ASTM D 570
Linear Expansion % increase - 50% RH, 23°C to water soaked 100°C 15 - Method: ASTM D 570