Structural, thermal, dielectric spectroscopic and AC impedance properties of SiC nanoparticles doped PVK/PVC blend

Alghunaim, Naziha Suliman

doi:10.1016/j.rinp.2018.04.023

Cited by 27 publications

(13 citation statements)

References 25 publications

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“…13 are a common feature in most polymeric systems 29,51 . As is obvious, increasing T decreases the radii of the semicircles, which reflects the promotion of ionic conductivity 26 . This appearance confirms non‐Debye behavior as well 29,59 …”

Section: Resultssupporting

confidence: 60%

“…Dielectric measurements were performed to see if the produced NCSPE films might be used as solid polymer electrolytes. In addition, these measurements are helpful in studying other electrical phenomena, such as relaxation behavior, polarization and charge transport mechanisms 26–29 …”

Section: Resultsmentioning

confidence: 99%

“…In addition, these measurements are helpful in studying other electrical phenomena, such as relaxation behavior, polarization and charge transport mechanisms. [26][27][28][29] Dielectric constant and dielectric loss investigation The dependence of the dielectric constant ε 0 on the frequency (f ) and temperature (T) for the prepared films is shown in Fig. 9.…”

Section: The Structural Properties Of Ncspe Filmsmentioning

confidence: 99%

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Synthesis, structural, optical and electrical characterization of Y₂O₃/poly(ethylene glycol)–poly(vinyl chloride) based nanocomposite solid polymer electrolytes

Mohammed

El‐Gamal

Sayed

et al. 2022

Polymer International

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Nanocomposite solid polymer electrolytes (NCSPEs) have attracted a lot of attention as excellent candidates for future electronics, photonics and energy storage devices. In this work, Y2O3 (YO) nanosheets were prepared by a free‐template sol–gel method and incorporated inside a poly(ethylene glycol)–poly(vinyl chloride) (blend) matrix via solution casting. NCSPE films were then prepared by adding NaClO4 (NC) or LiCl (LC) to the nanocomposite solutions. XRD and field emission SEM showed that YO has a body‐centered cubic structure and a crystallite size of 24.8 nm, and looks like nanosheets with a high purity. The XRD results of the films showed that YO loading and salt complexation increase the films' amorphous structure. SEM was used to study the surface morphology and film thickness. Fourier transform infrared spectra confirmed the complexation and interactions between the YO/blend and NC or LC. UV–visible spectroscopy revealed that the films display low transmittance (˂17%), an extinction coefficient k between 0.2 × 10−3 and 1 × 10−3 and a comparatively high refractive index. The band gap of the blend decreased from 4.3 to 4.0 eV on loading YO, and NC exhibited a higher impact on Eg compared with LC. A significant increase in σac with complexing was reported and the maximum value was 7.4 × 10−4 S cm−1 for the 10 wt% NC/YO/blend structure. The NCSPE films are ionic conductors and have a non‐Debye type of conductivity relaxation, and the applied AC conduction mechanism is correlated barrier hopping. © 2022 Society of Industrial Chemistry.

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Section: Resultssupporting

confidence: 60%

Section: Resultsmentioning

confidence: 99%

Section: The Structural Properties Of Ncspe Filmsmentioning

confidence: 99%

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Synthesis, structural, optical and electrical characterization of Y₂O₃/poly(ethylene glycol)–poly(vinyl chloride) based nanocomposite solid polymer electrolytes

Mohammed

El‐Gamal

Sayed

et al. 2022

Polymer International

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“…This behavior suggests that the relaxation mechanisms of the studied samples are of the nonDebye model [71]. The semi-circuit radius of the SWCNTs/TiO 2 (3.2 wt.%)/CMC/PEO sample is obviously small compared to CMC/PEO blend and the other samples that con rm the improvement of ionic conductivity [72].…”

Section: Dielectric Constantmentioning

confidence: 74%

Synthesis of the SWCNTS/TiO2 Nanostructure and Its Effect on the Thermal, Optical, and Conductivity Properties of the CMC/PEO as Application of Low Energy Density Devices

Alsulami

Rajeh

2021

Preprint

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The TiO2 NPs synthesized by sol-gel method and the SWCNTs/TiO2 nanostructure fabricated by a simple mixing technique. By a solution casting process, pure CMC/PEO and SWCNTs/TiO2 nanohybrid doped CMC/PEO polymer blend films are prepared. It discussed the influence of polymer blend and MWCNTs/TiO2 nanohybrid loading on the properties of physical of the polymer blend. The XRD pattern shows that the average crystallite size of the nanoparticles for TiO2 and SWCNTs/TiO2 is 20 nm and 15 nm, respectively, and an increase in amorphicity was observed with an increase in doping. The interaction of CMC/PEO chains and SWCNTs/TiO2 nanohybrid is confirmed by FTIR spectra. The optical absorption spectrum shows that the energy gap reduces with the dopant increase. The miscibility between the CMC and PEO is demonstrated by DSC thermograms. An Enhancement in the thermal stability of the prepared samples with an increase in content of dopant is seen in the TGA analysis. The maximum value of the blend's AC conductivity is 4.77 10-5 S/m, and by increasing the loading of SWCNTs/TiO2 to 4.8 (wt.%) increased to 8.07 10-4 S/m. The conduction mechanism changed with SWCNTs/TiO2 loading from the correlated barrier hopping, in the blend, to the large Polaron tunneling. Usage of these nanocomposite films in the semiconductor industry is encouraged by the observed improvements in optical, thermal, and AC conductivity.

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“…Silicon Carbide (SiC) is a carbon-filtered ceramic material [31] and it is known and used as an inorganic material because it has good thermal chemical stability, low thermal expansion, durability, and high hardness [32]. Adding SiC to a polymer can increase its thermal stability and dielectric properties [33]. Nanocomposites prepared with metal nanoparticles and polymers have attracted the attention of researchers for a long time because of their good thermal and electrical properties as well as their optical properties [34][35][36].…”

Section: Introductionmentioning

confidence: 99%

Exploring of Polyvinylchloride / Silicon Carbide Nanocomposites Containing Different Amounts of SiC Nanoparticles

Pekdemir¹,

Qader²,

Aydoğdu³

et al. 2021

El-Cezeri Fen Ve Mühendislik Dergisi

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Polyvinyl chloride (PVC) is one of the popular materials that extensively used in different areas, so scientists are trying to investigate its characteristics in different formats, such as blends and composites, to improve its properties. Due to the distinctive nano particles' properties, polymer-based nanocomposites can offer new characteristics to pure polymers and can widen their applications in different areas. In this study, we added different compositions of silicon carbide (SiC) to PVC to investigate its molecular, thermal, and microstructural properties. Attenuated total reflection-infrared (ATR-IR), thermogravimetry (TG), differential scanning calorimetry (DSC), and optical microscopy (OM) were utilized to study molecular bond structure, thermal degradation, caloric properties, and surface morphology of the pure PVC and its composites. The first derivative of TG results showed that the temperature of the maximum thermal degradation of the PVC increased with increasing SiC nanoparticle ratio. Also, it is found that the PVC/12 mol% SiC started thermal degradation at comparably low temperature, however, the amount of residue of the composites is more than the pure PVC. Additionally, SiC nanoparticles caused the melting temperature of the composites to slightly shifts to a lower temperature compared to the PVC. It was observed that silicon carbide diminished the smoothness of the surface by increasing its fraction in the composite.

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Structural, thermal, dielectric spectroscopic and AC impedance properties of SiC nanoparticles doped PVK/PVC blend

Cited by 27 publications

References 25 publications

Synthesis, structural, optical and electrical characterization of Y₂O₃/poly(ethylene glycol)–poly(vinyl chloride) based nanocomposite solid polymer electrolytes

Synthesis, structural, optical and electrical characterization of Y₂O₃/poly(ethylene glycol)–poly(vinyl chloride) based nanocomposite solid polymer electrolytes

Synthesis of the SWCNTS/TiO2 Nanostructure and Its Effect on the Thermal, Optical, and Conductivity Properties of the CMC/PEO as Application of Low Energy Density Devices

Exploring of Polyvinylchloride / Silicon Carbide Nanocomposites Containing Different Amounts of SiC Nanoparticles

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Structural, thermal, dielectric spectroscopic and AC impedance properties of SiC nanoparticles doped PVK/PVC blend

Cited by 27 publications

References 25 publications

Synthesis, structural, optical and electrical characterization of Y2O3/poly(ethylene glycol)–poly(vinyl chloride) based nanocomposite solid polymer electrolytes

Synthesis, structural, optical and electrical characterization of Y2O3/poly(ethylene glycol)–poly(vinyl chloride) based nanocomposite solid polymer electrolytes

Synthesis of the SWCNTS/TiO2 Nanostructure and Its Effect on the Thermal, Optical, and Conductivity Properties of the CMC/PEO as Application of Low Energy Density Devices

Exploring of Polyvinylchloride / Silicon Carbide Nanocomposites Containing Different Amounts of SiC Nanoparticles

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Product

Resources

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Synthesis, structural, optical and electrical characterization of Y₂O₃/poly(ethylene glycol)–poly(vinyl chloride) based nanocomposite solid polymer electrolytes

Synthesis, structural, optical and electrical characterization of Y₂O₃/poly(ethylene glycol)–poly(vinyl chloride) based nanocomposite solid polymer electrolytes