Preparation and Characterization of PVDF-DMAc-Nano SiO2 Distillation Membrane

Polyvinylidene fluoride (PVDF) membranes were prepared with different compositions of SiO2 nanoparticles. PVDF is one of the most widely used in membrane technology. The molecular structure of PVDF fluoropolymer provides high chemical resistance, good mechanical properties and thermal stability. It also can be used as composites with inorganic nanoparticles such as SiO2 to improve the performance and properties of the membrane. In this study, Dimethylacetamide (DMAc) was used as solvent. The prepared membranes were characterized using contact angle measurements with water, atomic force microscope (AFM) and scanning electron microscope (SEM) for the structures of the membranes and mechanical strength. The experimental results showed that additional of nanoSiO2 will exhibit different characteristic on the microstructure and mechanical strength of the membrane.