Effect of neodymium‐doped titanium dioxide nanoparticles on the structural, mechanical, and electrical properties of poly(butyl methacrylate) nanocomposites

Abstract

Nanocomposites based on neodymium-doped titanium dioxide (Nd-TiO 2 )/poly(n-butyl methacrylate) (PBMA) have been prepared by an in situ polymerization of butyl methacrylate monomer with varying concentrations of Nd-TiO 2 nanoparticles. The resulting nanocomposites have been analyzed by ultraviolet (UV)-Visible spectroscopy, Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscope (SEM), differential scanning calorimetry (DSC), thermogravimetric analysis, and impedance analyzer (TGA). The results of UV and FTIR spectroscopy have indicated the interaction of nanoparticles with the PBMA matrix. Spherically shaped nanoparticles with an average size of 10-25 nm have been revealed in the TEM and their homogeneous dispersion, and interaction of polymer matrix has been confirmed by SEM and XRD studies. The thermal stability and glass transition temperature of the composites were significantly enhanced by the addition of nanoparticles. The AC conductivity and dielectric properties of nanocomposites have been found to be higher than pure PBMA, and the maximum electrical properties have been observed for 7 wt% composite. The reinforcing nature of the nanoparticles in PBMA has been reflected in the improvement in tensile strength measurements. The result indicated that the tensile strength of nanocomposites have greatly enhanced by the addition of Nd-TiO 2 nanoparticles whereas the elongation at break decreases with the loading of nanofillers. To understand the mechanism of reinforcement, tensile strength values have been correlated with various theoretical modeling. The research has been found to be promising in the development of novel materials with enhanced tensile strength, dielectric constant, and thermal properties, which may find potential applications in energy storage and nanoelectronic devices. J. VINYL ADDIT. TECHNOL., 25:9-18, 2019.

Influence of titanium dioxide nanoparticles on the structural, thermal, electrical properties, and gas sensing behavior of polyaniline/phenothiazine blend nanocomposites

“…A broad peak around 3431 cm −1 and a peak at 1614 cm −1 found in the spectra of nanoparticles indicate the existence of surface‐bound water molecules . From the FT‐IR spectrum of PANI/PTZ blend, the absorption peaks at 3444, 1595 and 1475 cm −1 are the stretching and bending vibrations of NH and CC bond of the quinoid and benzenoid ring of aromatic compound . The characteristic blend peak at 1305 cm −1 is assigned to the C‐N stretching vibration.…”

“…TiO 2 nanoparticles were synthesized via sol‐gel method according to our previously reported method . The titanium isopropoxide was dissolved in glacial acetic acid followed by the addition of water and stirred for 3 h. The titanium isopropoxide/acetic acid/water were maintained at 1:10:100 ratios.…”

Synthesis, characterization, gas sensing, and electrical property evaluation of polyaniline/copper‐alumina nanocomposites

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Effect of ceria nanoparticles on mechanical properties, thermal and dielectric properties of poly (butyl methacrylate) nanocomposites

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