Surface Modification of Poly(Vinylidene Fluoride) Microporous Membrane by Ferric Hydroxide Sol-Gel

Ya Jie Xie; Wan Peng Hu; Zhuan Wang; Song Xu

doi:10.4028/www.scientific.net/AMR.343-344.637

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 343-344Surface Modification of Poly(Vinylidene Fluoride)...

Surface Modification of Poly(Vinylidene Fluoride) Microporous Membrane by Ferric Hydroxide Sol-Gel

Abstract:

Surface modification of poly(vinylidene fluoride) (PVDF) membrane was accomplished by the adsorption of ferric hydroxide sol to impove its hydrophilicity. The adsorption curves of the membranes were analyzed by weight measurements, and the typical results showed a two-platform character in low concentration. The effects of the adsorption time, the ferric hydroxide sol concentration, the test temperature, as well as the water cleaning time on the adsorption amount were observed. Attenuated total reflection-Fourier transform infrared spectroscopy (ATR/ FTIR) analysis showed that the adsorption of ferric hydroxide sol on poly(vinylidene fluoride) microporous membranes (PVDFMM) is effective. The membranes hydrophilic performance was represented by water contact angle measurements. The water contact angles changes from the virgin 128^°to the lowest value 81.90^° in the range of 0~0.10 mol/L ferric hydroxide aqueous solution. The results indicated that ferric hydroxide sol can be immobilized on the PVDF films by adsorption, and the membrane hydrophilic performence increases with the increase of the adsorption amount of the ferric hydroxide sol onto the PVDF membrane surface.

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Periodical:

Advanced Materials Research (Volumes 343-344)

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637-642

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https://doi.org/10.4028/www.scientific.net/AMR.343-344.637

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Online since:

September 2011

Authors:

Ya Jie Xie, Wan Peng Hu, Zhuan Wang, Song Xu

Keywords:

Contact Angle (CA), Ferric Hydroxide Gel, PVDFMM, Surface Adsorption

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