| Catalog Number |
ACMA00045091 |
| Description |
PFSA membrane performs as a solid polymer electrolyte in fuel cells and other applications in electrochemistry and separation technology for a variety of electrochemical process and devices including chlor-alkali cells.The membrane is located between the cathode and anode and transports protons formed near the catalyst at the hydrogen electrode to the oxygen electrode thereby allowing the current to be drawn from the cell.
PFSA-M20C membrane is a reinforced membrane based on chemically stable perfluorosulfonic acid (PFSA) copolymer. Incorporation of the porous reinforcement such as PTFE improves the mechanical property of the composite membrane and allows the membrane to restrict its swelling. The membrane shows significant improvements in features such as better resistance to chemical attack and longer operating durability in fuel cells. |
| Application |
It is widely used in fuel cells. |
| Storage |
Prior to opening the original shipping box, the membrane does not require environmentally controlled storage. Membrane should be kept sealed in its original packaging until needed. After opening the package, store the material in a temperature and humidity controlled environment(temperature 25.0±5.0°C and humidity 45±5.0%RH). Acclimatize the membrane to the manufacturing environment for at least 48 hours prior to use.
Once opened and exposed to the environment, the membrane will equilibrate to the ambient relative humidity, and change in dimensions accordingly. |
|
Appendix
| PFSA membrane for fuel cells |
|---|
| Items | TPD-M20C-15 | TPD-M20C-25 | | MD | TD | MD | TD | | Thickness(microns) | 15 | 25 | | Weight(g/cm3) | 30 | 50 | | Physical Properties meastured at 50% RH, 23°C | | | Tensile Strength, max., MPa | 22 | 29 | 25 | 32 | | Tensile Modulus, MPa | 25 | 28 | 30 | 32 | | Elongation at Break, % | 150 | 180 | 220 | 230 | | Conductivity(at 100% RH, 23°C), S/cm | 0.085 | 0.085 | | Hydrogen Crossover, (ml/min·cm2) | <0.010 | <0.010 | | Water Content, % water (50% RH, 23°C) | 8.0±3.0% | 8.0±3.0% | | Water Uptake, % water (50% RH, 100°C,1h) | 15.0±5.0% | 15.0±5.0% | | Linear expansion, % increase | | | from 50% RH, 23°C to water soaked, 23°C | 2% | 5% | 2% | 10% | | from 50% RH, 23°C to water soaked, 100°C | 3% | 10% | 3% | 13% |
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| Packaging |
The standard product specifications for membrane pieces include:
Width: 0.20m(max.)
Length: 0.20m(min)-5.0m(max.)
The membrane for cut pieces will depend on the size and quantity of the customers' order requirements. All the flatted membranes are shipped on a roll. Flat membranes are directly wound into a small roll. The membranes are protected with a polyethylene wrap and inner packaging, then placed in shipping hard cartons.
The standard product specifications for membrane rolls include:
Width: 200mm and 600mm standard widths; other widths are available from 200mm to 400mm in 100mm increments on special order.
Length: 100-meter standard roll length, other non-standard lengths are feasible to meet orders of the customer.
There is a 50m2 minimum order requirement for non standard roll widths and lengths. Membrane pieces or rolls can be cut to non standard sizes, and special packaging provided at additional cost. Please contact our sales staff for details and availability.
Membrane dimensions are based on dry product conditioned at 23°C and 50% relative humidity(RH) before cutting. The moisture content of the membranes will have an influence on their size changes including in the length, width, and thickness directions. Once the coversheet is removed, the membrane will adjust to the environment conditions. The membrane typically adheres to the coversheet, to the extent that it reduces the dimensions. |
※ Please kindly note that our products are for research use only.
