Preparation of PVDF/SiO2 Composite Nanofiber Membrane Using Electrospinning for Polymer Electrolyte Analysis
Open Access
- 1 January 2013
- journal article
- Published by Scientific Research Publishing, Inc. in Soft Nanoscience Letters
- Vol. 03 (02), 37-43
- https://doi.org/10.4236/snl.2013.32007
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.Keywords
This publication has 9 references indexed in Scilit:
- Polymer electrolytes based on an electrospun poly(vinylidene fluoride-co-hexafluoropropylene) membrane for lithium batteriesJournal of Power Sources, 2007
- Characterization of Electrospun PVdF Fiber-Based Polymer ElectrolytesChemistry of Materials, 2006
- Complexation of poly(vinylidene fluoride):LiPF6 solid polymer electrolyte with enhanced ion conduction in ‘wet’ formJournal of Power Sources, 2003
- Wettability of PVD compound materials by lubricantsSurface and Coatings Technology, 2003
- All Solid-State Lithium-Polymer Battery Using a Self-Cross-Linking Polymer ElectrolyteJournal of the Electrochemical Society, 2003
- Functionalized SiO2 in poly(ethylene oxide)-based polymer electrolytesJournal of Power Sources, 2002
- Ionic conductivity in crystalline polymer electrolytesNature, 2001
- A fine set of threadsNature, 2001
- Structure and morphology of small diameter electrospun aramid fibersPolymer International, 1995