Optimizing the incorporation of silica nanoparticles in polysulfone/poly(vinyl alcohol) membranes with response surface methodology

摘要: The addition of silica nanoparticles and poly(vinyl alcohol) (PVA) to polysulfone (PSF) membranes was used modify the membrane morphology enhance performance. central composite design response surface methodology predict maximum permeability real salt rejection (Rreal) PSF membranes. factors affecting Rreal values were (0–12 wt % PSF) PVA (0–2 contents. optimized responses, permeability, obtained experimentally 61.9260 L m−2 h−1 bar−1 97.5850%, respectively, with deviation from predicted 34.72 15.84%, respectively. In further characterization, contact angle results showed that important in stabilizing nanoparticle surfaces prevent agglomeration polymeric matrix. tensile strength test confirmed improved mechanical However, had a weakening effect on affected typical asymmetric structures less, as shown scanning electron micrographs. This may have been due good incorporation additives membranes, observed energy-dispersive X-ray Fourier transform infrared spectroscopy results. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, Liver Transpl, 2011. AASLD.