Synthesis of (Polymer blend-MgO) Nanocomposites and Studying Electrical   Properties for Piezoelectric Application

Habeeb, Majeed Ali; Hamza, Rehab Shather Abdul

doi:10.52549/ijeei.v6i4.511

Cited by 18 publications

(12 citation statements)

References 2 publications

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“…Figure(7) shows distinctive FESEM images of the pure CMC/PAA blend film. From the images, the film were observed as homogenous, cross-linked, coherent and moresofter, which coincidence with research[21]. When compared with FESEM image for CMC (Figure(6-A)), the formation of small spherical grains can be noticed that insured the existence of some peaks in XRD pattern of PAA in CMC film, Figure(5).…”

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confidence: 77%

Structural and Optical Characteristics of Carboxymethylcellulose / Polyacrylic Acid Polymer Blend

Jawad¹,

Kadhemy

2021

JK-Physics

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The blending technology makes it possible to rebuild high molecular weights of partial polymers, thus to improve the product performance together with improvement of specific properties. Pure Carboxymethylcellulose (CMC) film and CMC (80%) doped Polyacrylic Acid (PAA) (20%) films were prepared by using a solution casting method. The influence of PAA polymer addition on the structural and optical properties of CMC polymer was investigated systematically. From X-ray diffraction patterns, adding a polymer PAA to a polymer CMC can lead to the appearance of peaks in polymer blend. FESEM image for CMC/ PAA film showed the formation of small spherical grains for PAA into CMC that insured the existence of some peaks in XRD pattern of PAA in CMC film which means the improvement of the microstructure of the polymer matrix. No chemical interactions were observed between CMC and PAA polymers from results of FTIR spectrum, so that incorporation of PAA into CMC polymer will results physical reaction only. The results of the UV spectrum have shown that the absorbance, absorption coefficient, extinction coefficient, refractive index, real and imaginary dielectric constants were increased in blend polymer compared with the pure polymer. The energy gap and transmittance of blend polymer compared with the pure polymer were reduced.

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confidence: 77%

Structural and Optical Characteristics of Carboxymethylcellulose / Polyacrylic Acid Polymer Blend

Jawad¹,

Kadhemy

2021

JK-Physics

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“…In general, nanofiller additions tend to increase the viscosity of electrospun polymer solutions [ 10 , 48 ]. However, if nanofillers are conducting materials, such as MgO NPs [ 49 , 50 ], they can strengthen the repulsive force generated during the electrospinning process by increasing the solution conductivity and hence decreasing the fiber diameters. Thus, there is a balance between the viscosity and repulsive force in forming electrospun mats during electrospinning [ 48 ].…”

Section: Resultsmentioning

confidence: 99%

Compositional Influence on the Morphology and Thermal Properties of Woven Non-Woven Mats of PLA/OLA/MgO Electrospun Fibers

2022

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In the present work, a statistical study of the morphology and thermal behavior of poly(lactic acid) (PLA)/oligomer(lactic acid) (OLA)/magnesium oxide nanoparticles (MgO), electrospun fibers (efibers) has been carried out. The addition of both, OLA and MgO, is expected to modify the final properties of the electrospun PLA-based nanocomposites for their potential use in biomedical applications. Looking for the compositional optimization of these materials, a Box–Wilson design of experiment was used, taking as dependent variables the average fiber diameter as the representative of the fiber morphologies, as well as the glass transition temperature (Tg) and the degree of crystallinity (Xc) as their thermal response. The results show <r2> values of 73.76% (diameter), 88.59% (Tg) and 75.61% (Xc) for each polynomial fit, indicating a good correlation between both OLA and MgO, along with the morphological as well as the thermal behavior of the PLA-based efibers in the experimental space scanned.

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“…2 shows the relationship between the transmittance spectrum and the spectrum of the nanocomposite (PVA-MnO 2 -ZrO 2 ). We may conclude that the transmittance decreases, while the absorbance increases with the increasing concentration of (MnO 2 -ZrO 2 ) nanocomposite, which correlates with the increase in the number of charge carriers [18,19]. In this case, the absorption decreases, and the transmittance increases with the increasing wavelength.…”

Section: Resultsmentioning

confidence: 98%

Fabrication and Evaluation of Optical Characteristics of (PVA-MnO2–ZrO2) Nanocomposites for Nanodevices in Optics and Photonics

2023

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We study the impact of (MnO2–ZrO2) nanoparticles on optical properties of (PVA) polymer. Several samples were produced with different weight ratios of (MnO2–ZrO2) nanoparticles. To prepare the selected samples, the casting method is used. To record the absorption spectrum, wavelengths of 200–1100 nm are applied. We have determined the absorption coefficient, energy gap for indirect transitions (forbidden and allowed), optical constants (such as the dielectric constant with its imaginary and real parts, refractive index, and attenuation coefficient), and optical conductivity. The results indicate that there is a proportional relationship between the optical constants and the concentration of (MnO2–ZrO2) nanoparticles, which means that an increase of the concentration of (MnO2–ZrO2) nanoparticles leads to an increase of the optical constants, while the transmission decreases. Additionally, the optical energy gap decreases from 4.83 eV to 3.4 eV and from 4.65 eV to 3.28 eV with increasing the concentration of (MnO2–ZrO2) nanoparticles for allowed and forbidden indirect transitions, respectively. These results can be considered as key ones for the use of (PVA-MnO2–ZrO2) nanocomposites in various fields such as optoelectronics and photonics.

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Synthesis of (Polymer blend-MgO) Nanocomposites and Studying Electrical Properties for Piezoelectric Application

Cited by 18 publications

References 2 publications

Structural and Optical Characteristics of Carboxymethylcellulose / Polyacrylic Acid Polymer Blend

Structural and Optical Characteristics of Carboxymethylcellulose / Polyacrylic Acid Polymer Blend

Compositional Influence on the Morphology and Thermal Properties of Woven Non-Woven Mats of PLA/OLA/MgO Electrospun Fibers

Fabrication and Evaluation of Optical Characteristics of (PVA-MnO2–ZrO2) Nanocomposites for Nanodevices in Optics and Photonics

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