Abstract
Polyimide (PI)/titanium dioxide (TiO2) nanocomposite films were prepared by a solution mixing method with different contents of TiO2 nanoparticles. The structural and thermal properties of pure PI and PI/TiO2 nanocomposite films were studied by several techniques such as scanning electron microscopy (SEM), atomic force microscopy (AFM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and thermally stimulated depolarization current (TSDC). The SEM and AFM measurements show the uniform dispersion of TiO2 nanoparticles in PI matrix, and it is also observed that the value of average roughness increases with increasing the contents of TiO2 nanoparticles. The XRD pattern shows the presence of TiO2 nanoparticles in PI matrix. It has been observed that the average crystallite size and percentage of crystallinity increase with content of the TiO2 nanoparticles. FTIR spectra depict the position of different bonds in PI and nanocomposite samples. The TSDC results represent the modification of polarization phenomenon after filling of PI by titania nanoparticles.
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Lal, R., Rathore, B.S. & Gaur, M.S. Structural and polarization properties of polyimide/TiO2 nanocomposites. Ionics 18, 565–572 (2012). https://doi.org/10.1007/s11581-011-0649-9
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DOI: https://doi.org/10.1007/s11581-011-0649-9