Nafion™ membranes are often used to separate the anodes from the cathodes in electrolysis reactors or fuel cells. The thickness of the cation exchange membrane makes Nafion™ 212 ideal for hydrogen fuel cells. Nafion™ 212 is 50.8 µm thick.
Chemours® (formerly DuPont®) Nafion™ NR212 membranes are unreinforced films based on chemically stabilized perfluorosulfonic acid / PTFE copolymer in its acid form (H+). The physical properties of the chemically stabilized membranes remain the same. Compared to the unstabilized polymer, these have a significantly lower fluoride ion release. That means improved chemical resistance. Nafion™ PFSA membranes are widely used for proton exchange membranes (PEM) in fuel cells and electrolysis reactors. The membrane acts as a separator and solid electrolyte in a large number of electrochemical cells. Typically, such cells require that the membrane selectively transport cations across the cell boundary. The polymer is chemically resistant and durable. We give a discount when purchasing 5, 10 or 20 pieces.
The standard size is 15 x 15 cm. Other dimensions are available on request.
|Thickness||50.8 microns (5 mil)|
|Weight (g / m²)||250|
|Tensile Strenght - max. (MPa)||32 (MD), 32 (TD) - method: ASTM D 882|
|Non-Standard-Module (MPa)||266 (MD), 251 (TD) - method: ASTM D 882|
|Elongation at Break (%)||225 (MD), 310 (TD) - method: ASTM D 882|
|Hydrogen crossover (ml/minxcm²)
|Specific Weight (23 °C, 50% RH)||1,97|
|Available Acid Capacity (meq / g)||0.92 min|
|Total Acid Capacity (meq / g)||0.95 bis 1.01|
|Water Content (% Water)||5.0±3.0% - method: ASTM D 570|
|Swelling (% Water)||50.0±5.0% - Methode: ASTM D 570|
|Linear Expansion % Increase - 50% RH, 23 °C||10.0 - method: ASTM D 756|
|Linear Expansion % Increase - 50% RH, 23 °C to 100 °C||15.0 - method: ASTM D 756|
Nafion™ NR212 Membrane
- Brands DuPont
- Product Code: FE010753
- Availability: In Stock
- Ex Tax: 55.00€