Research on the Superhydrophobic Modification of Polyvinylidene Fluoride Membrane

Abstract:

In order to improve the hydrophobic property of Polyvinylidene fluoride (PVDF) membrane, in this paper nano-silica was modified by silane coupling agent firstly, then the modified nano-silica mixed with fluororesin，crosslinking agent and thickener to prepare the super-hydrophobic surface coating, finally the surface coating was covered on PVDF membrane. The results showed that the contact angle of the modified membrane was 162°and the sliding angle was 4°. The modified membrane was test by SEM and AFM, the surface coating on the PVDF membrane formed micro/nano-meter structure such as lotus leaves surface.

• Periodical: Advanced Materials Research (Volumes 197-198)
• Pages: 514-517
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.197-198.514
• Online since: February 2011
• Authors: Wen Fang Yang, Zhi Qui Zhang, Zhen Ya Gu, Xiao Xing Shen, Qing Fu Zhang
• Keywords: Nano-Silica, PVDF, Super-Hydrophobic Modification, Surface Coating

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