Ultra-filtration membranes based on electrospun poly(vinylidene fluoride) (PVDF) fibrous composite membrane scaffolds
writer：Wuyi Zhou,*ab Addie Bahi,b Yingjie Li,b Heejae Yangb and Frank Ko*b
keywords：Electrospinning; Ultro-filtration membranes; PVDF
source：期刊
specific source：RSC Advances, 2013, 3, 11614–11620
Issue time：2013年
In this study, electrospun TiO2–PVDF composite scaffolds coupled with different polymeric coatings werefabricated. TiO2 nanoparticles with an average diameter of 20 nm were used to improve the mechanicalproperties of the scaffold. It was found that the physical properties of ultrafiltration (UF) membranes couldbe adjusted by varying the type of polymeric coating used. The electrospun TiO2–PVDF membranescoupled with a thin PVDF coating showed benign mechanical properties but a low water permeability.
Contrarily, the filter possessed good water permeability but weak mechanical properties when it wascovered by two layers of coatings including both pure PVDF and chitosan–PEO. The breaking mechanismof the UF membrane coupled with different polymer coatings was analysed in detail, and correspondingmodels for this mechanism were provided.