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Luftfilter und chemische Filtration
ePTFE Membran HEPA Filtermedien
A microporous expanded-PTFE membrane laminated to a stable support web for clean, chemically resistant HEPA and ULPA filter conversion.
- Microporous ePTFE Layer
- Low Fibre Shedding
- Chemical Resistance
- High-Cleanliness Laminate
Produkteinführung
The media combines a thin expanded-polytetrafluoroethylene membrane with a stronger nonwoven or synthetic support. The ePTFE node-and-fibril structure provides fine particle retention at the surface, while the carrier protects the membrane through pleating and pack assembly. The laminate is naturally hydrophobic and resistant to many chemicals, making it attractive for sensitive microelectronics, pharmaceutical and aggressive-air applications. Finished performance is established after the media is pleated and sealed into a complete filter.
Key Features
Hydrophobic ePTFE resists moisture penetration during normal service.
The support layer provides tensile strength for pleating and conversion.
Broad chemical resistance suits selected corrosive process environments.
Kunden Produktbedenken
Ultra-clean processes need high particle retention without glass-fibre shedding or moisture sensitivity.
Glass-fibre fragments are undesirable near sensitive products.An ePTFE surface layer provides particle capture without an exposed microglass face.
Condensation changes the resistance of a hydrophilic medium.The hydrophobic membrane limits wetting by liquid water droplets.
The thin membrane tears during pleating.A bonded support web carries handling loads through conversion and pack assembly.
Aggressive process vapours degrade ordinary fibre binders.PTFE chemistry offers broad resistance to many acids, bases and solvents.
Typische Anwendungen
Semiconductor cleanroom filtrationPharmaceutical terminal HEPA filtersBattery manufacturing dry roomsCorrosive process airLow-shedding clean equipment
Technische Parameter
Typical physical ranges for an ePTFE membrane air-filter laminate are listed below.
| Core Material | Microporous expanded PTFE membrane laminated to spunbond polyester or polypropylene support |
|---|---|
| Panel Dicke | 0.15–0.45 mm total laminate thickness |
| Effektive Breite | 500–1500 mm usable roll width |
| Maximale Länge | Up to 50000 mm roll length depending on laminate basis weight |
| Stahl facing Dicke | 0.20–0.40 mm stainless-steel support screen when the laminate is assembled into a protected HEPA pack |
| Kerndichte | 120–350 kg/m³ apparent laminate density |
| Thermische Leitfähigkeit | 0.04–0.08 W/(m·K) through the porous laminate |
| Oberfläche Finish | Smooth white hydrophobic ePTFE membrane face on a clean support web |
| Gemeinsamer Typ | Thermal or adhesive laminate supplied in rolls for mini-pleating and pack edge sealing |
| Customisierung | Verfügbar je nach beabsichtigter Anwendung und Betriebsumgebung. |
Verfügbare Optionen
Polyester or polypropylene backingHEPA and ULPA retention gradesDifferent basis weightsCustom roll widths and winding direction
Planning a ePTFE Membrane HEPA Filter Media specification?
Senden Sie uns Ihre Abmessungen, Installationsbedingungen, Leistungsziele und gewünschte Oberflächenveredelung.
