Micro-structural Evolutions of Polyimide Composite Films with Graphenes

• DOI: 10.4313/jkem.2014.27.1.56
• Publication Date: 2014-02-18T06:09:28Z
• Authors: Seong Eun Shim; Jungsoo Kim; Dae-Geun Nam; Weontea Oh
• Keywords: Phase inversion

The polyimide composite membranes were prepared with solutions including graphenes by using the phase inversion method. morphologies of these significantly changed according to graphene loadings in and solvent systems solutions. finger-like macro-voids formed hollow fiber which NMP system a small amount ethanol. As increasing content viscous alcohols such as glycerol or 1,3-propanediol solution, however, sponge-like types. In case flat membranes, increase composites causes that their change from macro-porous morphologies.