PTFE Micropore Membrane
Product Description
Product Detail
PTFE Micropore Membrane – Two-Way Stretched PTFE Filtration Membrane for Dust and Gas Filtration | Model PTFE Micropore Membrane
PTFE Micropore Membrane is a microporous filtration membrane manufactured from PTFE dispersion resin through a controlled sequence of extrusion, calendering, sintering and two-way stretching, then composited with different base materials to suit the end application. The PTFE Micropore Membrane delivers a combination of high filtration efficiency, wide temperature range and chemical inertness that no other polymer membrane can match in the same operating window.
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How PTFE Micropore Membrane Is Made – Four Controlled Steps
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01
Extrusion PTFE dispersion resin is extruded into a continuous preform with controlled density and thickness.
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02
Calendering The extruded preform is calendered to the target membrane thickness with tight tolerance.
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03
Sintering Sintering locks in the crystalline structure and creates the chemical and thermal stability of the membrane.
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04
Two-Way Stretch Biaxial stretching opens the micropore network to the target pore size and porosity.
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After stretching, the PTFE Micropore Membrane is composited with different base materials (woven or non-woven) according to the specific requirements of the filter — a step that gives the membrane the mechanical support needed for pleating, cartridge assembly and long-term service.
Key Properties of PTFE Micropore Membrane
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Anti-Corrosive
The PTFE Micropore Membrane resists acids, alkalis, solvents and most aggressive industrial media — the same inertness as solid PTFE, extended to a porous structure. |
High and Low Temperature Resistant
The PTFE Micropore Membrane operates from -150°C to +250°C, making it suitable for both cryogenic and high-temperature filtration duties. |
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High Filtration Efficiency
Pore size from 0.05 to 5 μm and aperture ratio ≥ 85% give the PTFE Micropore Membrane high capture efficiency with low pressure drop. |
Custom Composite Base
The PTFE Micropore Membrane can be laminated to different base materials to match pleating, cartridge and bag filter designs. |
Technical Properties – PTFE Micropore Membrane
| Item | Unit | Result |
| Pore size | μm | 0.05 – 5 |
| Aperture ratio | % | ≥ 85 |
| Filtration rate | H | 11 – 14 |
| Temperature | °C | -150 to +250 |
Where PTFE Micropore Membrane Is Used
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Air Purification
The PTFE Micropore Membrane captures fine dust and aerosols in HVAC and industrial ventilation systems. |
Dust Filtration
Used as the surface filtration layer in bag filters and cartridge filters for cement, steel and general dust collection. |
Pharmaceutical
Sterile and aseptic filtration in pharmaceutical manufacturing, where PTFE Micropore Membrane chemical inertness is essential. |
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Automotive & Gas Turbine
Air intake and exhaust gas filtration at the high temperatures that the PTFE Micropore Membrane withstands. |
Electrical Equipment
Ventilation and pressure equalisation membranes in battery packs, enclosures and control cabinets. |
Waste Incineration
Flue gas filtration where acid gases and high temperatures would destroy other filter media. |
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Concrete Industry
Dust collection on cement silos, mixers and bagging lines — the PTFE Micropore Membrane resists alkaline cement dust. |
Steel Industry
Fume and dust filtration in steel mills and foundries where the PTFE Micropore Membrane tolerates high thermal loads. |
Air Conditioning
High-efficiency filtration in commercial and industrial air conditioning systems. |
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Get Your PTFE Micropore Membrane Quotation
Tell us the pore size, aperture ratio, base material and required roll width — we reply within 24 hours with FOB pricing, lead time and a free sample offer.
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Send Inquiry All PTFE Films |
Frequently Asked Questions
Related products: PTFE Micropore Gas Membrane and PTFE Film.