膜
超滤(肾)
接触角
材料科学
差示扫描量热法
傅里叶变换红外光谱
渗透
化学工程
扫描电子显微镜
氟化物
高分子化学
结垢
色谱法
复合材料
化学
无机化学
物理
工程类
热力学
生物化学
作者
Fu Liu,M.R. Moghareh Abed,K. Li
标识
DOI:10.1016/j.memsci.2010.09.044
摘要
Poly(vinylidene fluoride) (PVDF) based ultrafiltration membranes were prepared from a PVDF/nano γ-Al2O3 complex suspension where the γ-Al2O3 is well dispersed. The effect of nano γ-Al2O3 concentration on the membrane performances was investigated. Surface chemical compositions, surface and cross-section morphologies and hydrophilicity of the membranes were characterized by Fourier transform infrared spectroscopy (FTIR), Differential Scanning Calorimeter (DSC), Scanning Electron Microscopy (SEM) and contact angle measurement, respectively. The mechanical strength of the membranes was also investigated. Permeation experiments were conducted to evaluate the water flux. Both static and dynamic BSA fouling resistance performances were investigated. All the experimental results indicate that the new PVDF ultrafiltration membranes demonstrate better separation performances over the pure PVDF membranes.
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