Description
Overview
Nafion™ D520, D1020 and D2020 are industry-recognized PFSA polymer dispersions widely used in fuel cells, water electrolyzers, catalyst inks, membrane surface coatings, sensors and other electrochemical applications. These dispersions contain chemically stabilized perfluorosulfonic acid (PFSA) polymer in acid form and are supplied in different polymer contents and solvent systems to support a wide range of coating and processing requirements. D520 is a 5 wt% alcohol/water-based dispersion, D1020 is a 10 wt% water-based dispersion, and D2020 is a 20 wt% alcohol/water-based dispersion. Together, they provide flexible options for laboratory development, pilot-scale process optimization and industrial production.
Key Features
- Industry-standard PFSA polymer dispersion material
- Available in multiple solid contents for different coating requirements
- High proton-conducting ionomer for electrochemical applications
- Suitable for catalyst ink formulation and membrane or electrode coating
- Widely used in PEM fuel cells, water electrolyzers and sensors
- Available in water-based or alcohol/water-based solvent systems
- Suitable for laboratory, pilot-scale and industrial processing
Technical Specifications
| Property | D520 | D1020 | D2020 | Unit |
|---|---|---|---|---|
| Dispersion Type | PFSA dispersion | PFSA dispersion | PFSA dispersion | — |
| Polymer Content | 5.0–5.4 | 10.0–12.0 | 20.0–22.0 | wt% |
| Water Content | 45 ± 3 | 87–90 | 34 ± 2 | wt% |
| VOC Content | 50 ± 3 | <1 | 46 ± 2 | wt% |
| Main Solvent System | Water + 1-propanol | Water-based | Water + 1-propanol | — |
| Specific Gravity | 0.92–0.94 | 1.05–1.07 | 1.01–1.03 | — |
| Available Acid Capacity (H+ polymer basis) | >1.00 | >1.00 | >1.00 | meq/g |
| Total Acid Capacity (H+ polymer basis) | 1.03–1.12 | 1.03–1.12 | 1.03–1.12 | meq/g |
| Viscosity at 25 °C | 10–40 | 2–10 | 50–500 | cP |
Applications
- PEM fuel cell catalyst inks
- PEM water electrolysis catalyst coatings
- Membrane surface coating and thin-film fabrication
- MEA and CCM processing
- Electrochemical sensors
- Research, pilot production and industrial electrochemical systems
Commercial Note
Prices shown on this page are indicative reference prices and may vary depending on quantity, packaging format and market conditions. Listed prices exclude VAT, shipping and any custom repacking or handling services. Bulk orders, customized packaging and long-term supply cooperation are available upon request. Please contact us for detailed quotations, availability and technical support.
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