New adapter for testing 25 mm membrane discs in the HP4750

We have observed a growing need in the research community for a high pressure stirred cell to test 25 mm membrane discs. The Membrane Area Reducer was developed in collaboration with Christopher M. Stafford, PhD. and Chris Amigo, Machinist, at the National Institute of Standards and Technology, to add more versatility to our standard HP4750 high pressure stirred cell. Researchers are now able to test 25 or 47 mm discs in the cell with relative ease.

A smaller membrane disc diameter is ideal in the following research applications:

Fabrication of new membranes

Researchers may prefer to test the membranes in a cell with small membrane active area initially. Casting large areas of homogenous membranes at lab-scale production is challenging, whereas testing smaller disks ensure membrane homogeneity across the active area.

Membrane surface modifications

Researchers who modify the membrane surface using plasma, UV radiation, vapor deposition, or one of the many other techniques with lab-size devices usually can only modify a small section of the membrane at a time.

Fouling studies

Utilizing a 25 mm disk compared to a 47 mm disk allows researchers to run tests for twice as long.

To learn more about the Membrane Area Reducer, please see the product page or get in touch with one of our membrane process specialists