The important of compatibility of polymers with additives can often play a significant role in the physical modification of the membrane polymer. The role of organic and inorganic additives, such as methyl cellulose, glycerin, poly(vinyl pyrrolidone), poly(ethylene glycol) (PEG), water and zinc chloride (ZnCl2) in casting solutions has been used as additive that enhances the permeation properties of membrane polymers. Inorganic salt additives in casting solutions are known to change the solvent properties or the interaction between the macromolecular chains. In this study, effect of LiCl addition on pure PVDF and composite membranes were studied. Different PVDF membranes composition were prepared. Different percent of LiCl were added to PVDF membranes to study their effect on membrane performance. Addition of LiCl will enhance mechanical and physical properties of pure and composite the membrane. The hybrid membranes containing the MWCNTs were characterized by higher rejection value than the polymeric membranes. The rejection values are improved up to 95% when using 1% LiCl. Figure 1 present images of different pure PVDF and composite membranes contain different LiCl percentage.

Preparation and characterization of porous asymmetric polyvinylidene fluoride (PVDF)/multiwall carbon nanotube (MWCNT) mixed matrix membranes

247th National Meeting (2014)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.