Anion exchange membrane Fumasep FAA-3-20 separation membrane
Details
| Model | Fumasep FAA-3-20 | Fumasep FAA-3-50 |
| Physical Properties | ||
| Appearance | Brown Transparent Film | Brown Transparent Film |
| Thickness (um) | 18~22um | 45~55um |
| Backing | Colorless Rigid PET Foil | Colorless Rigid PET Foil |
| Delivery State | Dry, requires self-activation | Dry, requires self-activation |
| Resistance (Ω/cm²) | <2.0 (Chloride form) | Surface resistance 0.6 (Chloride form), 0.10-0.15 (Hydroxide form) |
| Density (mg/cm²) | 7.5~8.3 | |
| Ionic Selectivity | >90% | 95.5% (Chloride form) |
| Characteristics | Low resistance, high selectivity, high acid and alkali stability | |
Usage and Storage Recommendations
Pretreatment Methods (By Application)
| Application Scenario | Recommended Wetting/Activation Method | Notes |
|---|---|---|
| Fuel Cell / Redox Flow Battery | Soak in 0.5 M NaCl, 24–72 h | Promotes swelling and stabilizes dimensional stability |
| Electrodialysis / Acid-Base Recovery | Soak in NaCl or KCl solution, 12–48 h | Avoids bubble entrainment |
| CO₂ Electroreduction / Water Electrolysis | Convert to OH⁻ form: Soak in 0.5–1.0 M NaOH or KOH ≥ 24 h | Operation under inert atmosphere is preferred |
| Long-term Storage | Store in a dry, hermetically sealed, light-proof container | Prevents moisture and CO₂ from degrading performance |
| Short-term Storage | Immerse in neutral saline solution in a sealed container | Suitable for pre-wetted membranes |
Non-product quality problem, no return
Confidentiality requirements regarding the use statement of the diaphragm
Dear Customer:
To avoid potential intellectual property risks, we hereby remind you to pay attention to the following important points:
1. Unauthorized disclosure is prohibited.
Without the formal written authorization from the manufacturer (such as UBE of Japan, Wscope of Korea, Celgard of the United States, etc.) or its parent company, please do not explicitly mention the use of the separators from these manufacturers in any public setting (including but not limited to patent applications, paper publications, product promotions, technical documents, social media, exhibitions, or media reports, etc.).
2. Legal risk warning
If an intellectual property infringement dispute (such as trademark, patent or trade secret issues) occurs due to unauthorized disclosure, all legal responsibilities and economic losses arising therefrom shall be borne by the disclosing party on its own.
Please make sure to pay attention to the above requirements. Avoiding any unnecessary legal disputes caused by negligence is of utmost importance. If you have any questions, please feel free to contact us at any time.
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