3M™ DuraPES™ Flat Sheet Membrane
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Eigenschaften
- 3M™ DuraPES™ flat sheet membranes made from Polyethersulfone are characterized by the asymmetrical distribution of pores over the cross section
- 3M™ DuraPES™ membranes are completely synthetic
- 3M™ DuraPES™ flat sheet membranes possess good thermal welding ability
- 3M™ DuraPES™ can be processed with common pleating processes
- 3M™ DuraPES™ flat sheet membranes can be sterilized by steam, ethylene oxide, beta- and gamma-irradiation
- Members of the 3M™ DuraPES™ flat sheet membrane family, sterilized by ETO, beta- and gamma-irradiation passed the following tests: a) Systemic Injection Test acc. ISO 10993-11, b) Intracutaneous Test acc. ISO 10993-10, c) Cytotoxicity acc. ISO 10993-5, d) Hemolysis acc. ISO 10993-4, e) Skin Sensitization acc. ISO 10993-10, f) Pyrogenic properties acc. ISO 10993-11
- 3M™ DuraPES™ flat sheet membranes are compliant with EU Food Contact Regulation 1935/2004
- All grades of 3M™ DuraPES™ membranes achieve log reduction values of at least 7 with specific microorganisms
3M™ DuraPES™ Series microporous Polyethersulfone (PES) Filtration Membrane offers high throughput performance because of the asymmetric pore structure. The evenly distributed pores form an asymmetrical structure with excellent depth filtration characteristic along the thickness of the membrane. The highly asymmetric pore structure of our 3M™ DuraPES™ flat sheet membrane offers a high dirt loading capacity, increasing the filtration performance to give higher throughputs and higher flow rates than membranes with symmetrical pore structure.
The patented pore structure in the cross-section of the 3M™ DuraPES™ Series counteracts rapid clogging in high dirt load applications. This is largely due to the unique pore structure and polymer blend of sulfonated and unsulfonated PES that allows it to remain permanently hydrophilic.
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