Technical membranes can be used wherever mixtures of substances need to be separated. The core competences at Fraunhofer IGB are the shaping and the functional coating of membranes. In this innovation field, we develop both hollow-fiber and flat membranes using phase inversion processes, we are furthermore able to manufacture them from laboratory to pilot scale. In addition, we have established a wide range of roll-to-roll coating processes (wet chemical, plasma processes) to optimize the separation or fouling properties of membranes. For the development of new membranes, we also have extensive know-how in material synthesis (polymers, ceramics) and the characterization of materials, surfaces and membranes. With the available test rigs we carry out application studies for our partners in the fields of activity listed below.
Polymer materials offer convincing advantages, like cost, processibility and broad range of applications. Polymers, we are working with, comprise commercially available ones, their modifications and self-made (block-co-) polymers by e.g. radical polymerization. Polymer membranes can be further optimized by adding particle fillers to come to tailor-made mixed-matrix membranes. If the application requires more extreme conditions e.g. regarding temperature we are working with full ceramic membranes.