Membrane processing

The Fraunhofer IGB uses different processes for the production of different membrane types up to pilot scale. Hollow fibers are produced by wet spinning, flat membranes by casting and capillary membranes by melt spinning. To further improve the separation properties of membranes, they can be modified by various coating techniques, such as wet chemical coating, plasma treatment, interfacial polymerization, sol-gel process or electroless deposition. We have the equipment for continuous roll-to-roll coating for both hollow fiber and flat membranes.

Wet-spinning of hollow fiber membranes

Casting of flat membranes

Melt-spinning of capillary membranes

Wet chemical modification

Plasma modification