Electrothermal and Optical Properties of Hybrid Polymer Composites

Al-Tweissi, Mohammed; Ayish, IO; Al-Ramadin, Y.; Zihlif, A. M.; Elimat, Z. M.; Al-Faleh, R. S.

doi:10.21272/jnep.10(2).02006

Cited by 4 publications

(5 citation statements)

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“…Fig. 7 shows the variation of Lorenz number of the CPCs at absolute temperature 303 K. It can be observed that the Lorenz number increases with increasing BaTiO3 concentration that refers to the difference in the rates of increasing of ac electrical and thermal conductivities with BaTiO3 content [20].…”

Section: Optical Resultsmentioning

confidence: 98%

Polyethylene Oxide/Barium Titanate Composites: Optical, Electrical and Thermal Properties

Al-Ramadin¹,

Elimat²

2020

J. Nano- Electron. Phys.

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Our goal is to prepare and study the physical properties (optical, electrical, and thermal) of barium titanate (BaTiO3)/polyethylene oxide (PEO) as ceramic polymer composites (CPCs). CPCs consist of BaTiO3 (0, 2, 4, 7, 10, and 12 by weight percentage concentration) as ferroelectric ceramic fillers and PEO as a host polymer matrix. The composites have been prepared by casting method and their physical properties are investigated and discussed. The optical properties and parameters, such as the optical absorption, optical energy gap, dielectric constant, and refractive index are determined as a function of BaTiO3 concentration and applied UV-wavelength ranges from 300 to 800 nm. The alternating electrical properties have been calculated and studied as a function of BaTiO3 concentrations; applied frequency varies from 50 Hz to 1000 Hz, and temperature is in the range 30-55 C. Also, the thermal conductivity of the PEO/BaTiO3 CPCs has been calculated as a function of both BaTiO3 concentration and temperature. With the increase in BaTiO3 ceramic content, the optical energy gap is found to decrease from 2.85 eV for 0 wt. % BaTiO3 to 2.26 eV for 12 wt. % BaTiO3. We found that these physical properties depend on the BaTiO3 ceramic content and temperature. This indicates the possibility of manipulation of the physical parameter values by control of the BaTiO3 weight ratio in polymer composites.

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Section: Optical Resultsmentioning

confidence: 98%

Polyethylene Oxide/Barium Titanate Composites: Optical, Electrical and Thermal Properties

Al-Ramadin¹,

Elimat²

2020

J. Nano- Electron. Phys.

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“…Thus, at higher concentrations of the CuCl 2 , the network of the PVA/CuCl 2 films are connected to each other and hence they produce the overlapping paths to allow the charge carriers to pass through, where the charge carriers with routes through which the electrical resistance is less. 11 Figure 3 shows the measurements of the AC-conductivity (σ AC ) of the PVA/CuCl 2 films as functions of temperature (30-90 °C) and CuCl 2 concentrations (0, 1, 3, 5, 7 and 12 wt-%) at 1000 kHz. The results show that the σ AC increases with increasing the temperature.…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Determination of Lorenz number of composite films based on copper chloride(II) in polyvinyl alcohol matrix

Tweissi,

Khoshman,

Miqdad

et al. 2024

Plastics, Rubber and Composites: Macromolecular Engineering

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The electrical and thermal conductivities as well as Lorenz number of polyvinyl alcohol (PVA) composites have been investigated at different concentrations of the copper chloride II (0, 1, 3, 5, 7 and 12 wt-%). The powder of copper chloride II (CuCl2) was casted with the PVA polymer1. The electrical conductivity was measured by using the impedance technique, and it was studied as functions of the CuCl2 concentrations, applied frequency range of 100–7000 kHz, and temperature range of 30–100 °C. The activation energy ( Ea) was also determined for all the studied samples at applied frequency of 1000 kHz. It was found that the Ea decreased with increasing the CuCl2 concentration. Moreover, the thermal conductivity of the samples was studied as functions of the CuCl2 concentration and temperature. It was found that the thermal conductivity increased with increasing the CuCl2 concentrations and temperature. Using the measured values of the thermal and electrical conductivities of the studied samples, the relationship between the Lorenz number ( L) of the PVA and CuCl2 concentrations with constant temperature was also studied based on the Wiedemann–Franz law. The results showed that the L number increased with CuCl2 concentrations increase at constant temperature.

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“…But in time polymerizations for 30 and 35 min showed that conductivity value a significant decrease. This is happen because the radical is formed faster so that the polymerization process more quickly occurs, the short-formed polymer chain [16,17].…”

Section: Resultsmentioning

confidence: 99%

Effect of Doped Indium Tin Oxide on Bonding and Morphology of Monomer Cholesteryl Acrylate

et al. 2019

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Monomer cholesteryl acrylate was doped by indium tin oxide (ITO) which succeeded in becoming composites in photopolymerization process using UV curing method having various polymerization time (15, 20, 25, 30 and 35 min) at 60-70 °C. The goal of this study is to know the effect of polymerization time to characterize the conductivity properties of composite cholesteryl acrylate-ITO. All the spectra confirmed the peaks at 600-550 cm -1 which attributed the doping of ITO in the composite cholesteryl acrylate-ITO. The XRD patterns of polymer cholesteryl acrylate-ITO has nematic chiral phase at 2θ = 15-20°. Some of the peaks are appeared at 15.2734° and 16.7266°, while other peaks of indium tin oxide appeared at 30°, 50° and 60°. The surface morphology of polymer cholesteryl acrylate-ITO showed the existence of sphere. The value conductivity of polymer cholesteryl acrylate-ITO is found to be 1.8390 × 10 -10 S/m.

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Electrothermal and Optical Properties of Hybrid Polymer Composites

Cited by 4 publications

References 0 publications

Polyethylene Oxide/Barium Titanate Composites: Optical, Electrical and Thermal Properties

Polyethylene Oxide/Barium Titanate Composites: Optical, Electrical and Thermal Properties

Determination of Lorenz number of composite films based on copper chloride(II) in polyvinyl alcohol matrix

Effect of Doped Indium Tin Oxide on Bonding and Morphology of Monomer Cholesteryl Acrylate

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