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•Datasheet: Microza Membranes

Polymeric Membrane Morphology
Microza ultrafiltration membranes are unique in their construction. Every membrane has an asymmetric structure,with a membrane layer both on the inside, and on the outside of the fiber, overlaying a core comprising a very open support for excellent flow characteristics, and a central strengthening layer for outstanding fiber durability in long-term service. Microza ultrafiltration membranes are resistant to flow in both directions, so there is no risk of delamination or membrane rupture during accidental back-pressure. In fact, in many installations, backpulsing can be used to maintain flux during extended run times.

Microza micofiltration membranes have smooth inner and outer membrane skins with a highly porous symmetrical support structure giving high-flow rates. These modules can also be backflushed.

All Microza membranes have surfaces that minimize entrapment and facilitate cleaning. All Microza membranes are manufactured in a single step, and are not composed of laminates. Membranes and modules are subjected to rigorous quality control to ensure consistency of performance, durability in service, and module integrity for the most demanding applications.

Membrane Types

Polysulfone (PS)
Polysulfone membranes exhibit excellent resistance to pressure, temperature and aggressive cleaning regimes. Very low affinity and adsorption characteristics results in high product recoveries, and long service life.

Polyacylonitrile (PAN)
PAN membranes are ideally suited to bulk process applications, such as the purification of enzymes. They exhibit high-strength, coupled with high flux rates, minimizing installation size. PAN has a low fouling characteristic for these applications, simplifying cleaning.

Polyvinylidene Fluoride (PVDF)
PVDF membranes are widely used for the filtration of biological solutions. In hollow fiber format, these membranes show excellent retention characteristics, allowing use in critical applications where absolute removal over long periods is required. Lower non-specific binding than many PS membranes used in protein recovery applications ensures excellent results in leading-edge biotechnology processes. PVDF membranes are steamable in situ for additional process security. PVDF exhibits superior chemical resistance to many other polymers used in microfiltration processes.

Polyolefin (P)
Polyolefin membranes are a good choice for bulk clarification processes where sterility is not essential. Nevertheless, P-membranes have good retention characteristics coupled with high flux rates. Availability in fine microfiltration retention ratings ensures protection of downstream processing equipment.

Microza Module Types
Microza hollow fiber modules are available with housings made from polysulfone (native, clear), filled polysulfone (white, opaque), and polyvinylchloride (PVC). Polysulfone modules will withstand autoclaving and in some cases steaming. Clear polysulfone modules are recommended for more critical pharmaceutical applications. Filled polysulfone and PVC modules are ideally suited to long term installations where light might cause biofilm to form, or for bulk processes involving light sensitive materials. PVC modules are ideal for use in feed water systems and bulk processes.

Microza modules are available with industry standard clamp fittings on the feed and retentate side, and some with quick connects. All steamable modules designed for long term use in critical applications such as perfusion have sanitary clamp connections on the feed/retentate and filtrate sides, or filtrate hose barbs on laboratory scale modules.

Click Here To Download:
•Datasheet: Microza Membranes