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has been cited by the following article:

• TITLE: Preparation of PVDF/SiO2 Composite Nanofiber Membrane Using Electrospinning for Polymer Electrolyte Analysis

  AUTHORS: M. Sethupathy, V. Sethuraman, P. Manisankar

  KEYWORDS: Electrospinning Poly(vinylidene fluoride); Silica Nanoparticle; Nanofiber Membrane; Superhydrophobicity

  JOURNAL NAME: Soft Nanoscience Letters, Vol.3 No.2, April 11, 2013

  ABSTRACT: Superhydrophobic poly(vinylidene fluoride) PVDF-SiO2 composite membranes with different % of SiO2 contents were prepared by electrospinning. The surface morphologies of the membranes are characterized by using scanning electron microscopy. The nanofibers in the membranes were stacked in layers to produce fully interconnected pores that resulted in high porosity. The incorporation of SiO2 into the nanofiber membrane improved the ionic conductivity from 0.2428 × 10-4Scm-1 to 7.731 × 10-4Scm-1 at room temperature. The surface roughness of the membranes increased with increasing the SiO2 content, while the average diameter of nanofibers was rarely affected. Superhydrophobic PVDF membrane with a contact angle larger than 136° was prepared by the electrospinning of the SiO2 functionalized PVDF. The surface composition of the membranes is analyzed by using FTIR and the contact angles and water drops on the surface of the membrane are measured. The contact angle experimental results of PVDF-SiO2 composite membranes showed an improvement of hydrophobicity with % of nano SiO2.