Study on the Influence of Interfacial Polymerization Process on Thin–Film Composite (TFC) Forward Osmosis (FO) Membrane Synthesis

Abstract

In this paper, interfacial polymerization conditions, such as monomer concentrations, interfacial polymerization reaction time and post treat temperature in the process were systematically studied for thin–film composite forward osmosis membrane synthesis and performance. Results show that with the increase of MPD and TMC monomer concentration, FO membrane water flux decline while the selectivity enhance. Interfacial polymerization reaction time and heating temperature both have significant effect on the properties of FO membrane. With the extension of polymerization time, FO composite membrane water flux decreased, selectivity performance reduces at first and improve then. While the FO membrane performance results illustrate the existence of the best processing temperature is 90 ᵒC.