Some Factors Influencing the Dielectric Properties of Natural Rubber Composites Containing Different Carbon Nanostructures

Al‐Ghamdi, Ahmed A.; Al‐Hartomy, Omar A.; Al-Solamy, Falleh R.; Dishovsky, Nikolay; Zaimova, Diana; Shtarkova, Rossitsa; Iliev, Vladimir

doi:10.4236/msa.2016.72011

Cited by 2 publications

(2 citation statements)

References 31 publications

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“…The study of the microwave EM properties of individual materials and NiO:OPEFB:PCL composites was carried out at the X‐band microwave frequency spectral region between 8 and 12 GHz. The dielectric (

ε_{r}^{'}

and

ε_{r}^{″}

) and magnetic (

μ_{r}^{'}

and

μ_{r}^{″}

) properties of the specimens were measured at room temperature (around 25 °C ± 2) utilize an Agilent (N5230A) PNA‐L automatic network analyzer connected to a rectangular waveguide (transmission/reflection method) by a cable, which was used as a sensor in measuring dielectric properties . With a transmission/reflection method, the material under test was inserted in the first rectangular waveguide and connected to the second waveguide with screws.…”

Section: Methodsmentioning

confidence: 99%

Synthesis, thermal, dielectric, and microwave reflection loss properties of nickel oxide filler with natural fiber‐reinforced polymer composite

Ahmad

Abbas

Shaari

et al. 2018

J of Applied Polymer Sci

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Fabrication of hybrid composite of nickel oxide (NiO) combined with oil palm empty fruit bunch (OPEFB) reinforced with polycaprolactone (PCL) has been done by using thermal Haake blending machine, which ensured mixture homogeneity. All hybrid composites' characterizations were carried out using X‐ray diffraction (XRD), Fourier transform infrared spectrometry, differential thermogravimetry, thermogravimetric analysis, and scanning electron microscopy. The results showed that the XRD profile patterns of the composites clearly changed as the filler loading amount was increased. Fourier transform infrared spectra illustrated a slight change in the frequencies and positions of the peaks after adding NiO, indicating that some interactions occurred between C=O and O–H or among the fiber, NiO, and PCL. The microwave electromagnetic properties, such as reflection loss (dB), relative complex permittivity (εr =εr′–jεr″), and permeability (μr=μr′−jμr″) were calculated at various microwave frequencies in the X‐band (8–12 GHz) range. It was observed that the thermal stability, magnetic, and dielectric properties of NiO:OPEFB:PCL composites were modified significantly with NiO addition. This enables the new hybrid composites to be used as engineering materials in the microwave applications. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 46998.

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ε_{r}^{'}

and

ε_{r}^{″}

) and magnetic (

μ_{r}^{'}

and

μ_{r}^{″}

Section: Methodsmentioning

confidence: 99%

Synthesis, thermal, dielectric, and microwave reflection loss properties of nickel oxide filler with natural fiber‐reinforced polymer composite

Ahmad

Abbas

Shaari

et al. 2018

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

“…The dielectric composite absorbers were dependent on the kind of fillers added to the polymer matrix . The absorption (A) dB of OPEFB–PCL composites was plotted by using the reflection and transmission of waves inside the materials, as given by Eq.…”

Section: Resultsmentioning

confidence: 99%

Effect of untreated fiber loading on the thermal, mechanical, dielectric, and microwave absorption properties of polycaprolactone reinforced with oil palm empty fruit bunch biocomposites

et al. 2018

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Basic research on recyclable, renewable and biodegradable polymer composite materials reinforced with natural fibers is increasingly growing. In this article, we characterize agricultural waste by determining its dielectric properties for microwave absorber application. Recently, polymer composites reinforced with natural fibers are increasingly used in dielectric and aircraft applications. We used a Thermal Hake blending machine to blend oil palm empty fruit bunch with polycaprolactone grain to make a homogeneous powder. The functional groups of the resulting composites were then analyzed through Fourier transform infrared spectrometry. Thermogravimetric and differential thermogravimetric analyses were performed to determine the thermal degradation behaviors of the composites. The tensile strength, tensile modulus and elongation at break of the composites were measured in an Instron universal testing machine. A rectangular waveguide and open‐ended coaxial probe connected to a microwave network analyzer (PNA) Agilent N5230A PNA‐L was used to measure the reflection coefficient S11 and transmission coefficient S21 values and the dielectric properties of the composite materials. Results showed that the thermal stability and dielectric properties of the polymer composites decreased as the fiber content increased. The composites exhibited potential as microwave absorbers at microwave frequencies. POLYM. COMPOS., 39:E1778–E1787, 2018. © 2018 Society of Plastics Engineers

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Some Factors Influencing the Dielectric Properties of Natural Rubber Composites Containing Different Carbon Nanostructures

Cited by 2 publications

References 31 publications

Synthesis, thermal, dielectric, and microwave reflection loss properties of nickel oxide filler with natural fiber‐reinforced polymer composite

Synthesis, thermal, dielectric, and microwave reflection loss properties of nickel oxide filler with natural fiber‐reinforced polymer composite

Effect of untreated fiber loading on the thermal, mechanical, dielectric, and microwave absorption properties of polycaprolactone reinforced with oil palm empty fruit bunch biocomposites

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