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

ABSTRACT 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...

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Bibliographic Details
Published in:Journal of applied polymer science 2019-02, Vol.136 (7), p.n/a
Main Authors: Fahad Ahmad, Ahmad, Abbas, Zulkifly, Shaari, Abdul Halim, J. Obaiys, Suzan, Sa'ad Aliyu, Umar
Format: Article
Language:English
Subjects:
Complex permittivity
Composite fabrication
Dielectric properties
Differential thermal analysis
Differential thermogravimetric analysis
Electromagnetic properties
Fourier transforms
Hybrid composites
Infrared analysis
Infrared spectra
Magnetic permeability
Magnetic properties
Materials science
microwave
Microwave frequencies
Nickel oxides
Polycaprolactone
polymer composites
Polymer matrix composites
Polymers
Reflection
reflection loss
relative complex
Scanning electron microscopy
Thermal stability
Thermogravimetric analysis
Thermogravimetry
X-ray diffraction
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Summary:ABSTRACT 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.
ISSN:0021-8995
1097-4628
DOI:10.1002/app.46998