Nano white carbon black particles filled PDMS/PVDF composite membranes were prepared

and FT-IR

TGA and contact angle were used to characterize the physical and chemical characteristics of the composite membranes. By using soybean/hexane miscellas

the separation performance of the composite membranes was systematically investigated. The results indicated that by filling white carbon black to PDMS

the crosslinking density was promoted

and the hydrophobicity

thermal stability and solvent resistance were improved. The permeate flux was declined with increasing filling content of white carbon black

while the oil retention was risen from 96% to 98%. With the increase of oil concentration

both of the permeate flux and oil retention were declined. With increasing feed temperature

the permeate flux was risen while the oil retention was declined. Mass transfer characteristics of soybean oil and hexane through the membrane can be described by the solution-diffusion with imperfections model

and the experimental values of the micelle osmotic pressure were well in accordance with calculated values.