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- ItemMembrane Functionalization in Pilot Scale: Roll‐to‐Roll Electron Beam System with Inline Contact Angle Determination(Weinheim : Wiley-VCH, 2021) Schulze, Agnes; Drößler, Lutz; Weiß, Steffen; Went, Marco; Abdul Latif, Amira; Breite, Daniel; Fischer, KristinaTo increase the permeation performance and antifouling properties of polymer membranes, a one-step reaction using electron irradiation was developed. This process combines the surface activation of the membrane polymer and the simultaneous permanent immobilization of hydrophilic molecules. This technology can be applied to various polymers, flat sheet/hollow fiber membranes and all pore ranges. The roll-to-roll system developed for this enables all process steps including inline analysis for quality control of the membrane surface in a continuously operated system. © 2021 The Authors. Chemie Ingenieur Technik published by Wiley-VCH GmbH
- ItemPolymeric Membranes With Sufficient Thermo‐Mechanical Stability to Deploy Temperature Enhanced Backwash(Weinheim : Wiley-VCH, 2021) Aumeier, Benedikt M.; Vollmer, Fabian; Lenfers, Simon; Yüce, Süleyman; Wessling, MatthiasThe alternative membrane cleaning method Temperature Enhanced Backwash exploits elevated temperatures of typically 125 °C to realize high shear rate. This exceeds usual operating temperatures by far. Therefore, the thermo-mechanical properties of polymeric membranes were investigated. A repeated load cycle testing was suited and sensitive to detect the failure of membrane material and potting. All tested PES membranes showed to be stable during the repeated load cycle testing. The potting adhesive may be decisive, thus, a tensile test at 125 °C is proposed. © 2021 The Authors. Chemie Ingenieur Technik published by Wiley-VCH GmbH