Gamma radiation induced fabrication of styrene butadiene rubber/ magnetite nanocomposites for positive temperature coefficient thermistors application

Raslan, Heba A.; Saied, Hend A. El; Mohamed, Rania M.; Yousif, N.M.

doi:10.1016/j.compositesb.2019.107326

Cited by 14 publications

(7 citation statements)

References 24 publications

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“…Regarding photocurrent, the conductivity of PVA increases by doping Ni in the PVA so that the photocurrent also increases by γ-irradiation, as discussed in the previous study [23]. The conductivity of Fe 3 O 4 [28] and TiO 2 [29] is also increased by γ-irradiation.…”

Section: Exp F S Ev I Imentioning

confidence: 55%

<i>&gamma;</i>-Ray Irradiation Effect on MCF Rubber Solar Cells with both Photovoltaics and Sensing Involving Semiconductors Fabricated under Magnetic and Electric Fields

Shimada¹,

Kato²,

Ikeda³

et al. 2020

WJM

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For cases in which a robot with installed solar cells and a sensor operates in a nuclear reactor building or in space for extravehicular activity, we require elastic and extensible solar cells. More than two different types of sensing are also required, minimally with photovoltaics and built-in electricity. Magnetic compound fluid (MCF) rubber solar cells are made of rubber, so they are elastic and extensible as well as sensitive. To achieve flexibility and an effective photovoltaic effect, MCF rubber solar cells must include both soluble and insoluble rubbers, Fe 3 O 4 , TiO 2 , Na 2 WO 4 •2H 2 O, etc. On the basis of this constitution, we propose a consummate fabrication process for MCF rubber solar cells. The characteristics of these cells result from the semiconductor-like role of the molecules of TiO 2 , Fe 3 O 4 , Ni, Na 2 WO 4 •2H 2 O, polydimethylsiloxane (PDMS), natural rubber (NR), oleic acid, polyvinyl alcohol (PVA), water and magnetic cluster involved in the MCF rubber. Their tendencies can be deduced by synthesizing knowledge about the enhancement of the reverse-bias saturation current I S and the diode ideality factor N, with conventional knowledge about the semiconductor affected by γ-irradiation and the attenuation of the photon energy of γ-rays.

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Section: Exp F S Ev I Imentioning

confidence: 55%

<i>&gamma;</i>-Ray Irradiation Effect on MCF Rubber Solar Cells with both Photovoltaics and Sensing Involving Semiconductors Fabricated under Magnetic and Electric Fields

Shimada¹,

Kato²,

Ikeda³

et al. 2020

WJM

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show abstract

“…where ρ is the electrical resistivity, ρ o is the resistivity at infinite temperature (T), and it is a constant, β is the constant of thermistor and T is the temperature in Kelvin, and sensitivity (α) was calculated by using 79 :

α = \frac{normalβ}{T^{2}}

PTC intensity is defined as the ratio of the max. resistivity to the resistivity at room temperature, which results in a logarithmic relationship 80

PTC intensity = \log (\frac{true}{{normalρ}_{\max}})

Where, ρ max is the maximum resistivity, ρ RT is the resistivity at room temperature.…”

Section: Resultsmentioning

confidence: 99%

“…Additionally, the conductive polymer at T C , the distance between the inter‐particle and the conducting aggregates becomes large. The intrinsic conduction comes up because of the PANI carriers, that is, thermal activation conduction becomes the controlling mechanism 80 . The agglomeration of conductive particles would have needed the adjacent polymer parts to exchange symmetrically, so the conductive particles must be large, and the energy ought to be greatly required to agglomerate.…”

Section: Resultsmentioning

confidence: 99%

“…resistivity to the resistivity at room temperature, which results in a logarithmic relationship. 80 PTC intensity ¼ log…”

Section: Magnetic Propertiesmentioning

confidence: 99%

“…The intrinsic conduction comes up because of the PANI carriers, that is, thermal activation conduction becomes the controlling mechanism. 80 The agglomeration of conductive particles would have needed the adjacent polymer parts to exchange symmetrically, so the conductive particles must be large, and the energy ought to be greatly required to agglomerate. Hence, the agglomeration of PANI is harder, and only a weak NTC effect is established.…”

Section: Magnetic Propertiesmentioning

confidence: 99%

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γ‐irradiation hardness investigations of (PANI)_1−x(Bi₂Te₃)_x composites for thermistor applications

Shalaby

Abdelhaleem

Taha

et al. 2022

J of Applied Polymer Sci

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The (PANI) 1Àx (Bi 2 Te 3 ) x composites were successfully synthesized. These composites have a simple physical combination of intrinsic conducting polymer and nanocrystal topological insulator materials which are promising new materials for unusual applications. The influence of γ-irradiation (100 kGy doses) on the performance of the (PANI) 1Àx (Bi 2 Te 3 ) x composites was described by atypical techniques to assess the radiation hardness of the samples. X-ray diffraction and Raman spectroscopy measurements show the semi-crystalline phases, the other structural parameters, and the phonon modes. The compositional analysis and the morphological properties were investigated by energy-dispersive X-ray, while transmission electron microscopy imaging confirmed the morphology of the dopants of Bi 2 Te 3 nanoparticles into the polyaniline (PANI) matrix, which shows the accumulation of the particles. Thermogravimetric analysis figured out the degradation behavior of the compositions. The representative electron spin resonance (ESR) signal exhibits a narrow single-line ESR spectrum for PANI/Bi 2 Te 3 nanoparticle concentrations. (PANI) 1Àx (Bi 2 Te 3 ) x illustrates unexpected ferromagnetic behavior that confirms the magnetic performance of the samples without introducing any magnetic dopants. The obtained materials showed promising performance for using such hybrid materials as a positive temperature coefficient thermistor.

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Impact of Gamma Radiation and Rice Husk Nanosilica on the Physico-Mechanical Properties of Styrene Butadiene Rubber/Natural Rubber Blend

2020

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Gamma radiation induced fabrication of styrene butadiene rubber/ magnetite nanocomposites for positive temperature coefficient thermistors application

Cited by 14 publications

References 24 publications

<i>&gamma;</i>-Ray Irradiation Effect on MCF Rubber Solar Cells with both Photovoltaics and Sensing Involving Semiconductors Fabricated under Magnetic and Electric Fields

<i>&gamma;</i>-Ray Irradiation Effect on MCF Rubber Solar Cells with both Photovoltaics and Sensing Involving Semiconductors Fabricated under Magnetic and Electric Fields

γ‐irradiation hardness investigations of (PANI)_1−x(Bi₂Te₃)_x composites for thermistor applications

Impact of Gamma Radiation and Rice Husk Nanosilica on the Physico-Mechanical Properties of Styrene Butadiene Rubber/Natural Rubber Blend

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Gamma radiation induced fabrication of styrene butadiene rubber/ magnetite nanocomposites for positive temperature coefficient thermistors application

Cited by 14 publications

References 24 publications

&lt;i&gt;&amp;gamma;&lt;/i&gt;-Ray Irradiation Effect on MCF Rubber Solar Cells with both Photovoltaics and Sensing Involving Semiconductors Fabricated under Magnetic and Electric Fields

&lt;i&gt;&amp;gamma;&lt;/i&gt;-Ray Irradiation Effect on MCF Rubber Solar Cells with both Photovoltaics and Sensing Involving Semiconductors Fabricated under Magnetic and Electric Fields

γ‐irradiation hardness investigations of (PANI)1−x(Bi2Te3)x composites for thermistor applications

Impact of Gamma Radiation and Rice Husk Nanosilica on the Physico-Mechanical Properties of Styrene Butadiene Rubber/Natural Rubber Blend

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Product

Resources

About

<i>γ</i>-Ray Irradiation Effect on MCF Rubber Solar Cells with both Photovoltaics and Sensing Involving Semiconductors Fabricated under Magnetic and Electric Fields

<i>γ</i>-Ray Irradiation Effect on MCF Rubber Solar Cells with both Photovoltaics and Sensing Involving Semiconductors Fabricated under Magnetic and Electric Fields

γ‐irradiation hardness investigations of (PANI)_1−x(Bi₂Te₃)_x composites for thermistor applications