PTFE Battery Separator Base Film 0.22μm, 80 mm Diameter, 100 Sheets
Product Overview
Hydrophilic PTFE separator membrane supplied as Φ80mm/100sheets 0.22um. The source data highlights chemical resistance, pH compatibility, wettability, and membrane handling requirements.
Product Details
| Product name | PTFE Battery Separator Base Film 0.22μm, 80 mm Diameter, 100 Sheets |
| Source specification | Φ80mm/100sheets 0.22um |
| Process / coating side | Uncoated membrane; no coating specified |
| Material | Polytetrafluoroethylene (PTFE) |
| Coating | None specified |
| Diameter | 80 mm |
| Pack quantity | 100 sheets |
| Nominal pore size | 0.22 μm; source also lists 0.2 / 0.45 μm |
| Wettability | Hydrophilic |
| pH range | 1-14 |
| Color / surface | White / smooth |
| Chemical resistance | Broad chemical compatibility; resistant to strong acid and strong alkali solutions |
| Membrane material | Expanded PTFE |
| Handling note | The source states that hydrophobic PTFE used for aqueous filtration must first be wetted with ethanol or isopropanol. |
Additional Information
PTFE membrane is suitable for many organic solvents and aqueous solutions. The source also notes use in venting or air filtration where hydrophobic PTFE is appropriate.
Important Note
Note: Slight variations may occur between different production lots of the battery separator. The performance indicators are guaranteed to comply with our product specifications.
Related Products
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| Compare nearby specifications | PTFE Battery Separator Base Film 0.22μm, 60 mm Diameter, 100 Sheets | Same PTFE separator membrane family for direct specification comparison. |
| Review same-family format | PTFE Battery Separator Base Film 0.22μm, 90 mm Diameter, 100 Sheets | Same PTFE separator membrane family for direct specification comparison. |
| Check alternate thickness | PTFE Battery Separator Base Film 0.22μm, 50 mm Diameter, 100 Sheets | Same PTFE separator membrane family for direct specification comparison. |
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EMAIL: inquiry@atomfair.com
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Manufacturer: Atomfair LLC
Brand: ATOMFAIR®
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The membrane is designed for use within a pH range of 1-14 to maintain structural integrity. It exhibits broad chemical resistance to strong acids and alkalis.
- pH Range Constraint: Operate the membrane within a pH range of 1-14 to prevent degradation.
- Chemical Resistance: The membrane resists degradation from strong acids and alkalis, ensuring compatibility with aggressive chemical environments.
What is the effective pore size and pH compatibility of the PTFE Battery Separator Base Film 0.22μm, 80 mm Diameter, 100 Sheets?
The membrane has a nominal pore size of 0.22 μm (with 0.2 and 0.45 μm also listed) and is compatible with a pH range of 1–14. This broad pH tolerance, combined with its expanded PTFE construction, makes it suitable for aggressive chemical environments where standard separators may degrade.
Is the PTFE separator membrane hydrophilic or hydrophobic, and how does that affect its use in battery applications?
This membrane is supplied as hydrophilic, which allows direct wetting by aqueous electrolytes without pre-treatment. In contrast, the source notes that hydrophobic PTFE used for aqueous filtration must first be wetted with ethanol or isopropanol, so this hydrophilic version eliminates that extra handling step for aqueous systems.
What handling or pre-treatment is required for this PTFE membrane before use?
No pre-treatment is required for this hydrophilic membrane; it wets directly with aqueous solutions. However, the source explicitly states that hydrophobic PTFE used for aqueous filtration must first be wetted with ethanol or isopropanol—a step not needed for this product. The membrane is uncoated and should be handled with care to avoid contamination or physical damage.
This 0.22 μm hydrophilic PTFE separator membrane in 80 mm discs offers broad chemical resistance (pH 1-14) and compatibility with organic solvents, but requires pre-wetting with ethanol or isopropanol for aqueous filtration due to its hydrophobic nature.
Positive
- Broad chemical and pH resistance: The expanded PTFE membrane withstands strong acids, strong alkalis, and many organic solvents across pH 1-14, enabling use in aggressive chemical environments where other separators fail.
- Hydrophilic wettability for aqueous use: The membrane is supplied hydrophilic, allowing direct wetting with water for aqueous filtration applications, eliminating the need for solvent pre-treatment in standard battery separator protocols.
Trade-offs
- Pre-wetting required for hydrophobic variants: If hydrophobic PTFE is used for aqueous filtration, it must first be wetted with ethanol or isopropanol, adding a preparation step and potential solvent compatibility considerations.
- Lot-to-lot variation possible: Slight variations may occur between production lots, though performance indicators are guaranteed to comply with specifications, requiring users to verify consistency for critical applications.
Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.
To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.
Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD excl. heavy equipment). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).
