Document Type : Original Article
Authors
1
Chemical Engineering Department, Faculty of Engineering, Alexandria University, Alexandria, Egypt
2
Chemical and Petrochemical Engineering Department. Egypt-Japan University of Science and Technology (EJust), Egypt
3
Mechanical Power Engineering Department, Faculty of Engineering, Mansoura University, Egypt
4
Director of Mansoura University Nanotechnology Center, Mansoura University, Egypt
5
University of Science and Technology, Environmental Engineering Department, Zewail City of Science and Technology, October Gardens, Giza, Egypt.
Abstract
Membrane fabrication by the electrospinning can provide tunable structure membranes with interconnected pores, large surface area, and high porosity. This study focuses on studying the effect of different membrane compositions (i.e., polymer concentration and inorganic additives) and electrospinning conditions (i.e., internal needle diameter, tip to collector distance, and feed flow rate) on the quality of polyvinylidene fluoride (PVDF) flat sheet membrane. A homogeneous dope solution was prepared by dissolving the PVDF in a mixture of dimethylacetamide (DMAc) and acetone. By using a scanning electron microscope (SEM), the electrospinning conditions producing beadles fibers are as follows: 16 wt% polymer concentration, 0.004 wt% LiCl concentration, 0.51 mm internal needle diameter, 15 cm tip to collector distance, feed flow rate of 1 ml/hr. Further analysis was conducted by using Fourier Transform Infrared Spectrometer (FTIR) and X-Ray Diffraction (XRD) to assess the impact of electrospinning on fibers elemental composition. Additionally, static water contact angle, porosity, fiber diameter, and pore size measurements reveal the formation of submicron hydrophobic fibers with random alignment.
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