Product introduction
This product is made of high-performance polyolefin material, produced by biaxial mechanical stretching/chemical phase separation process, and then processed by hot pressing compounding process. It has high filtration accuracy, High quality, low price, is the most suitable choice to reduce the cost of membrane raw materials.
Process: high performance PO material---super thin sheet---biaxial stretching/chemical phase separation---hot pressing composite support
Pore formation: secondary stretching/chemical phase separation
Composite : Hot pressing, no adhesive
Heat shrinkage: <1.5% @100℃ 1h.
Tensile strength: 1750-2300kgf/cm2
MWCO:500-750KDa. UF Grade.
Material properties: Hydrophobic and oleophobic, capable of hydrophilic/lipophilic modification..


Product Specifications & Performance
Model | type | Thickness (um) | Aperture (um) | Porosity % | Airflow(LMH) @25℃.0.35MPa. | Workingpressure /DP | Use |
HPO-FT01 | puremembrane (Nosupport) | 10-30 | 0.04-0.05 | 35-40
| 25-30 | 3bar | Manufacture of various composite membranes |
HPO-FT02 | Composite (non woven support) | 40-200 | 0.03-0.04 | 33-48 | 20-25 | 3bar | Pleatedfilterelement |
HPO-FP03(PVDFCoated) | Coatedmembrane | 15-50 | 0.03-0.04 | 33-48 | 20-25 | 3bar | CanreplacePVDF/PTFE/PES/PAN |
Comparison of process performance parameters of membranes
Project | PTFE flat membrane | PVDF flat membrane | PES flat membrane | PO flat membrane |
Type | UF | MF | UF | MF | UF | MF | UF | MF |
Manufacturing process | Stretch | Stretch | Coating/Phase Separation |
| Phase separation | Stretch+Phase Separation |
Composite process | Composite non-woven | Composite non-woven | PVC membrane | None | None | Composite non-woven /Coating PVDF |
|
Hole shape difference | Medium | Medium | Small | Small | Small | Medium | Small |
Pore size difference | Medium | Medium | Small | Small | Small | Medium | Small |
Flow channel | long curved | long curved | short straight | short straight | long curved | short straight |
Thickness | 100-200 µm | 100-200 µm | 10-50 µm | 15-40 µm | 15-40 µm | 15-40 µm | 100-200 µm | 10-50 µm |
Strength | High | High | Low | Low | Low | Low | High | Low |
Temperature resistance | <50℃ | <50℃ | <50℃ | <150℃ | <150℃ | <150℃ | <50℃ | <50℃ |
Anti-pollution /back wash recovery | High Fine | High Fine | High Fine | High Fine | Low Medium | Low Medium | High Fine |
Chemical resistance (CIP cleaning) | High Fine | High Fine | High Fine | High Fine | Medium & Generally | Medium General | High Fine |
Resistant to organic solvents | Non-woven materials are limited | PVC materials are limited | Fine | Conventional | Conventional | Conventional | Fine |
Work pressure | <6 bar | <6 bar | <3.5 bar | <6 bar | <3.5 bar | <3.5 bar | <3.5 bar | <3.5 bar |
Hydrophilic | Low | Low | Low | Low | High | High | Low | High |
Oleophobicity | High | High | High | High | Low | Low | Low | Low |
Material Safety | High | High | Low | High | High | High | High | High |
Standard price | High | High | Low | High | High | High | Low | Low |
Applications & advantages:
● For flat membrane: can replace PES/PAN/PVDF/PTFE. Cost saving 30%.

● Used for pleated filter element, higher filtration accuracy than PP/PET meltblown & spunbond material.

● Excellent material, Strong compatibility, can be used for food/pharmaceutical grade precision filtration,
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