Nafion membranes are often used to separate the anodes from cathodes in electrolysis reactors or fuel cells. The thickness of the cation exchange membrane makes Nafion™ 117 ideal for methanol fuel cells (DMFC). Nafion™ 117 is 183 μm thick.
Chemours™ (formerly DuPont™) Nafion™ 117 membranes are unreinforced films based on chemically stabilized perfluorosulfonic acid / PTFE copolymer in its acid form (H+). The physical properties remain the same for the chemically stabilized membranes. Compared to the unstabilized polymer, these have a much lower fluoride ion release. This means improved chemical resistance. Nafion™ PFSA membranes are widely used for proton exchange membrane (PEM) in fuel cells and electrolysis reactors. The membrane acts as a separator and solid electrolyte in a variety of electrochemical cells. Typically, such cells require that the membrane selectively carry cations across the cell boundary. The polymer is chemically resistant and durable.
Membrane properties
| Characteristic | Value | Unit | Min | Max |
| Average Thickness | 178 | µm | ≥165.1 | ≤190.5 |
| 7.0 | Mils | ≥6.5 | ≤7.5 | |
| Expansion MD | 11.6 | % | ≥5.0 |
|
| Expansion TD | 17.6 | % |
|
≤28.0 |
|
Maximum Thickness |
188 | µm |
|
≤203.2 |
| 7.4 | Mils |
|
≤8.0 | |
|
Minimum Thickness |
168 | µm | ≥152.4 |
|
| 6.6 | Mils | ≥6.0 |
|
|
| Weight caliper | 0.22 | g/in² | ≥0.20 | ≤0.26 |
| Available Acid Capacity | 0.92 | meg/g | ≥0.90 |
|
| Total Acid Capacity | 0.96 | meg/g | ≥0.95 | ≤1.01 |
| Complete Hydrolysis | Pass |
|
PASS TEST |
|
| Visual Qality | Pass |
|
PASS TEST |
|
We offer different versions of Nafion membranes. Please ask for an quote.
Nafion™ 117 Membrane
- Brands DuPont
- Product Code: FE010603
- Availability: In Stock
-
107.10€
- Ex Tax: 90.00€
Available Options
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Tags: Nafion, perfluorosulfonic acid, PTFE, membrane, cation exchange membrane, proton exchange membrane, PFSA, DuPont, Chemours