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Abstract
Sufficient mechanical property of ion-exchange membrane is a key factor for its successful implementation to electrodialysis (ED) stack. Although the ED is not a pressure driven process, the membrane need to withstand some small overpressure and also manipulation during stack assembling. In this work, the use of short polypropylene and glass fibers as low cost alternative to common woven or nonwoven fabric was studied. We confirmed that short polypropylene fibers rapidly increase the mechanical strength in machine direction (MD) even at very low concentration.
Acknowledgments
This work was supported by the Ministry of Industry and Trade of the Czech Republic within the framework of the project “Special membrane for the development and intensification of electro membrane technologies” program TIP No. FR-TI4/507, using the infrastructure of the Membrane Innovation Centre (No. CZ 1.05/2.1.00/03.0084).
Notes
Presented at the MELPRO 2014 Conference Membrane and Electromembrane Processes, 18–21 May 2014, Prague, Czech Republic