SiO 2 -PDMS-PVDF hollow fiber membrane with high flux for vacuum membrane distillation
Abstract(#br)In this study, hydrophobic asymmetric SiO 2 -PDMS-PVDF hollow fiber membranes were prepared for the vacuum membrane distillation (VMD). To make PVDF dope solution, hydrophobic nano-fumed silica (SiO 2 ) and polydimethylsiloxane (PDMS) were used. The effects of SiO 2 concentration on membrane parameters such as membrane morphology, hydrophobicity, porosity, thickness, pore size, liquid entry pressure, burst pressure, Fourier transformed infrared spectroscopy, thermal property, mechanical property and permeability were investigated.