PTFE Battery Separator Base Film 0.22μm, 90 mm Diameter, 100 Sheets
Product Overview
Hydrophilic PTFE separator membrane supplied as Φ90mm/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, 90 mm Diameter, 100 Sheets |
| Source specification | Φ90mm/100sheets 0.22um |
| Process / coating side | Uncoated membrane; no coating specified |
| Material | Polytetrafluoroethylene (PTFE) |
| Coating | None specified |
| Diameter | 90 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.
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| Compare nearby specifications | PTFE Battery Separator Base Film 0.22μm, 80 mm Diameter, 100 Sheets | Same PTFE separator membrane family for direct specification comparison. |
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| Check alternate thickness | PTFE Battery Separator Base Film 0.22μm, 60 mm Diameter, 100 Sheets | Same PTFE separator membrane family for direct specification comparison. |
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TAILORED SOLUTIONS FOR RESEARCH
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EMAIL: inquiry@atomfair.com
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Manufacturer: Atomfair LLC
Brand: ATOMFAIR®
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This hydrophilic PTFE membrane is chemically compatible with a pH range of 1–14 and resists strong acidic and alkaline solutions. The uncoated expanded PTFE substrate requires no pre-wetting and exhibits broad organic solvent compatibility.
- pH tolerance: The membrane maintains structural integrity across a pH range of 1 to 14.
- Chemical resistance: The material is resistant to degradation by strong acids and strong alkali solutions.
- Wetting behavior: The hydrophilic surface enables spontaneous wetting in aqueous media without prior ethanol or isopropanol treatment.
What is the maximum pH range and chemical resistance of the PTFE Battery Separator Base Film 0.22μm, 90 mm Diameter?
The PTFE membrane is resistant to strong acid and strong alkali solutions, with a pH range of 1–14. It offers broad chemical compatibility, making it suitable for use with many organic solvents and aqueous solutions in battery research.
Is the PTFE Battery Separator Base Film 0.22μm, 90 mm Diameter hydrophilic or hydrophobic, and how does that affect its use in aqueous filtration?
This membrane is hydrophilic, as stated in the product specifications. However, the source notes that hydrophobic PTFE used for aqueous filtration must first be wetted with ethanol or isopropanol; for this hydrophilic version, no such pre-wetting is required, but the handling note should be reviewed for specific applications.
What are the key specifications and handling requirements for the PTFE Battery Separator Base Film 0.22μm, 90 mm Diameter?
The membrane is an uncoated expanded PTFE film with a nominal pore size of 0.22 μm, supplied as 100 sheets of 90 mm diameter. It is white, smooth, and hydrophilic. The source indicates that slight variations may occur between production lots, but performance is guaranteed to comply with specifications.
This 0.22 μm hydrophilic PTFE separator membrane in a 90 mm disc format offers broad chemical resistance and pH 1-14 compatibility, making it suitable for aggressive battery electrolyte and aqueous filtration applications. Its expanded PTFE structure requires pre-wetting with ethanol or isopropanol for aqueous use, and lot-to-lot variations are possible, so performance verification is recommended.
Positive
- Broad chemical and pH resistance: The PTFE membrane withstands strong acids, strong alkalis, and many organic solvents across a pH range of 1-14, enabling use in aggressive chemical environments typical of battery and filtration applications.
- Hydrophilic wettability for aqueous use: The membrane is supplied in a hydrophilic form, allowing direct wetting with water for aqueous filtration without the need for pre-treatment, simplifying handling in standard lab workflows.
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 performance variation: Slight variations may occur between production lots, and while performance indicators are guaranteed to meet specifications, users should 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).
