The effect of nanoscale vanadium pentoxide on the electrical and mechanical properties of poly(vinyl alcohol)

Mahmoud, Waleed E.; Hafez, M.; El-Aal, N. Abd; El-Tantawy, Farid

doi:10.1002/pi.2308

Cited by 93 publications

(25 citation statements)

References 18 publications

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“…(b) shows the XRD patterns of PVC and PVC loaded with CdO nanoparticles. For pure PVC, the broad peak, halo, in the region of 15–35°, indicates the amorphous nature of PVC . By comparing the XRD pattern of pure PVC with its nanocomposites, it is observed that there is a homogenous distribution of CdO in PVC and the diffraction peaks of CdO are seen clearly starting from the CdO content of 0.7 wt%.…”

Section: Resultsmentioning

confidence: 98%

Synthesis, characterization, optical, and dielectric properties of polyvinyl chloride/cadmium oxide nanocomposite films

et al. 2014

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Nano‐sized cadmium oxide (CdO) was synthesized using a sol–gel method and mixed with poly(vinyl chloride) (PVC). X‐ray diffraction and high‐resolution transmission electron microscopy measurements indicated that the average particle size of the CdO is about 70.18 nm. Scanning electron microscopy images revealed a good dispersion of CdO nanoparticles on the surface of the PVC films. The optical energy band gap (Eg) showed a decrease from 5.08 to 4.88 eV with increasing the CdO content. The refractive index dispersion of the nanocomposite films was found to obey the single oscillator model. The dispersion parameters were changed by CdO incorporation. According to the frequency and temperature dependence of the dielectric constant (ε′), the observed αa‐relaxation peaks were assigned to the micro‐Brownian motion of the polymer main chains. The influence of CdO nanoparticles content on the ac conductivity and the activation energy of PVC nanocomposite films were discussed. It was found that both dielectric and optical properties were reinforced by the adding of CdO nanoparticles to the PVC matrix. Finally, the results of the present system are compared with those of similar materials. POLYM. COMPOS., 35:1842–1851, 2014. © 2014 Society of Plastics Engineers

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Section: Resultsmentioning

confidence: 98%

Synthesis, characterization, optical, and dielectric properties of polyvinyl chloride/cadmium oxide nanocomposite films

et al. 2014

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“…These composites possess unique properties, which do not exist for either inorganic component or polymer alone. Nanocomposites attract considerable attention and comprise a significant part in the field of portable devices because of their low cost, high sensitivity, fast response, and relative simplicity [7–14].…”

Section: Introductionmentioning

confidence: 99%

The influence of zinc ferrites nanoparticles on the thermal, mechanical, and magnetic properties of rubber nanocomposites

et al. 2012

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The interest to ferrite nanoparticles (NPs) is thriving because of their unique applications in life industry. Doping of rubber composites by nanoparticles results in a novel characteristics which is not exist either in the ferrite or rubber alone. In this study, zinc ferrite NPs have been synthesized via sol–gel technique. These nanoferrites embedded into acrylonitrile butadiene rubber (NBR) at different concentrations. The morphology and structure of zinc ferrite and zinc ferrite NPs doped NBR were investigated using X‐ray diffraction and transmission electron microscopy. The influence of zinc ferrite NPs loading on the thermal stability showed that the zinc ferrite enhanced the thermal stability and reduced the rate of thermal degradation of rubber nanocomposites. The effect of zinc ferrite NPs on the mechanical properties of NBR showed that the hardness, tear strength, and tensile stress are improved. The magnetic measurements of these nanocomposites showed that the saturation magnetization is enhanced as the concentration of zinc ferrite NPs increased into NBR nanocomposites. The EPR spectra of zinc ferrite NPs doped NBR indicated that the increase in zinc ferrite NPs content resulted in an increase in the g‐factor and line width. POLYM. COMPOS., 2012. © 2012 Society of Plastics Engineers

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“…This may be attributed to the enhancement of light propagation into microporous film. The optical band energy gap, E g , for both films were determined based on Tauc's relation for direct electronic transition [24–26]. where α is the absorption, h is Planck's constant, and ν is the incident photons frequency.…”

Section: Resultsmentioning

confidence: 99%

Synthesis and characterization of electropolymerized molecularly imprinted microporous polyaniline films for solar cell applications

et al. 2013

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The solicitude to molecularly imprinted conjugated polymers is flourishing due to their auspicious properties for a myriad of technological and industrial applications. The preparation conditions strongly affect the structure, optical, thermal, and electrical properties of these polymers. Subsequently, a consistent contemplation is desired to entrench consanguinity between processing stipulations and these variables. Here, molecularly imprinted polyaniline films, based ascorbic acid as a template, have been synthesized via electropolymerization technique. This template has been extracted from the films to create microporous polyaniline films. The morphology and structure of these films were investigated using X‐ray diffraction and Fourier transform infrared spectroscopy. Thermogravimetric test showed an enhancement in the thermal stability of molecular imprinted polyaniline compared with non‐imprinted techniques. The optical measurements showed that the rate of light absorption is increased twice with low transmission and reflection. The electrical conductivity increased by four orders with activation energy of 0.30 eV. The optoelectronic measurements of molecularly imprinted microporous polyaniline films showed that the filling factor and external quantum efficiency are enhanced compared with non‐imprinted polyaniline films. POLYM. COMPOS., 2013. © 2013 Society of Plastics Engineers

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The effect of nanoscale vanadium pentoxide on the electrical and mechanical properties of poly(vinyl alcohol)

Cited by 93 publications

References 18 publications

Synthesis, characterization, optical, and dielectric properties of polyvinyl chloride/cadmium oxide nanocomposite films

Synthesis, characterization, optical, and dielectric properties of polyvinyl chloride/cadmium oxide nanocomposite films

The influence of zinc ferrites nanoparticles on the thermal, mechanical, and magnetic properties of rubber nanocomposites

Synthesis and characterization of electropolymerized molecularly imprinted microporous polyaniline films for solar cell applications

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