Abstract
Novel nanocomposites of PEO/PVDF loaded by different contents of SWCNTs were prepared. From UV-Vis spectra, the estimated values of absorption edge, absorption coefficient, energy of tail and extinction coefficient were calculated. The exponential decay tail at low energy is due to the presence of localized states in the energy band gap. The shift of Raman spectra indicates the possibility of SWCNTs to be attached with OH group in the side chain of polymer molecules. The X-ray measurements indicate that the addition of SWCNTs is a rich amorphous region in polymeric matrices and complete complexation between PEO/PVDF blend and SWCNTs. The SEM images show smooth surface of PEO/PVDF and they become rough with single rod with a good distribution within surface region in polymeric matrices after loading SWCNTs. TEM images showed that SWCNTs were dispersed well in polymeric matrices. The broken ends of nanotubes were showing that the SWCNTs were broken apart rather than from at the fracture surface. The films show some defects like rags on the tube walls. There are some black regions in TEM images attributed to amorphous nature carbon. The prepared nanocomposites are very useful in technical application.
Highlights
Nanofillers play roles in improvement and modification for properties of polymer and/or polymer blend and they reduce the cost of their nanocomposites [1]
How to cite this paper: Alhusiki-Alghamdi, H.M. and Alghunaim, N.S. (2015) Spectroscopic Studies of Nanocomposites Based on Polyethylene oxide (PEO)/polyvinylidene fluoride (PVDF) Blend Loaded by Single walled carbon nanotubes (SWCNTs)
The main goal of this work is to report investigations and characterization carried out by Ultraviolet-Visible Spectroscopy (UV-Vis) spectroscopy, X-ray, Raman, Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM) spectroscopy on PEO/PVDF blend and PEO/PEVDF loaded by different content of SWCNTs nanocomposites
Summary
Nanofillers play roles in improvement and modification for properties of polymer and/or polymer blend and they reduce the cost of their nanocomposites [1]. How to cite this paper: Alhusiki-Alghamdi, H.M. and Alghunaim, N.S. S. Alghunaim as a filler with dimensions in nanometer range have been used to enhance properties of pure blend. The properties of nanocomposites are designed by different parameters, such as different sizes, shapes and volumes of the nanofillers as a filler [2] [3]. More enhancements of the nanocomposite properties can be improved by loading nanofiller materials with aspect ratio [4]-[6]. Novel nanoparticles with polymer at low ratio are promising reinforcement materials. The well dispersion of the polymer using nanoparticles is poor, indicating that they are incompatible with each other. The compatibility and the surface of the additions still need improvements in the preparation at the dispersion
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