SOLUPOR® membranes are highly porous with high gas, air and liquid
permeability. Combined with a controlled pore size this makes SOLUPOR®
suitable for a range of filtration applications. Made from Ultra High
Molecular Weight Polyethylene, using a DSM unique patented proprietary
manufacturing technology, Solupor has outstanding properties such as:
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very good chemical resistance and inertness
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high toughness
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very high abrasion and impact resistance
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biocompatibility
Different than for most other porous membranes, SOLUPOR® has a unique pore
structure, being highly tortuous, with the membrane itself having a fibrilar
structure somewhat similar to nonwovens. This makes these membranes very
suitable for many applications in liquid (e.g. photopolymer) and gas
filtration.
The performance of our filter membranes rely on a combination of collection
mechansisms to remove particles of different sizes. The filtration efficiency
of Solupor is much higher than would be expected on the basis of measure mean
flow pore size ratings (MFP). All SOLUPOR® with MFP <2 microns show a
filtration efficiency for aerosol particles (0.1-0.2 microns) of >99.9%
according to US Military standard test method 209E. SOLUPOR® has a hydrophobic
nature with excellent wetting properties; these films can however also be
treated to make them hydrophylic as is needed in filtration of e.g. waste
and/or process water.
SOLUPOR®'s good mechanical properties combined with its high porosity and
smooth surface makes it an ideal substrate for composite membranes. The
separation efficiency and effectiveness of SOLUPOR® coated with a thin
functional layer can approximate theoretical values.
DSM Solutech has an ongoing effort to further optimise and improve our
products. Please contact us for more
information and to discuss your requirements.
