Recent Progress in Enhanced Optical, Mechanical, Thermal Properties, and Antibacterial Activity of the Chitosan/Polyvinylalcohol/Co3O4 Nanocomposites for Optoelectronics and Biological Applications

Journal of Polymers and the Environment, Journal Year: 2024, Volume and Issue: 32(8), P. 3735 - 3748

Published: Feb. 19, 2024

Language: Английский

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Processing polymer film nanocomposites of poly(vinylidene fluoride)/poly(ethylene oxide) and cobalt oxide nanoparticles for flexible energy storage systems

Optical and Quantum Electronics, Journal Year: 2024, Volume and Issue: 56(7)

Published: June 7, 2024

Language: Английский

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Synthesis and improved optical, electrical, and dielectric properties of PEO/PVA/CuCo2O4 nanocomposites

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: Aug. 15, 2024

This study investigates the development of novel nanocomposite films based on a blend polyethylene oxide (PEO) and polyvinyl alcohol (PVA) loaded with varying weight percentages copper cobaltite nanoparticles (CuCo2O4 NPs). The primary objective was to fabricate these nanocomposites using solution casting technique explore influence CuCo2O4 content their structural, optical, electrical, dielectric properties. Spinel-type NPs were synthesized via hydrothermal method incorporated into PEO/PVA blend. X-ray diffraction (XRD) analysis revealed transformation polymer matrix towards an amorphous state increasing content. UV–Vis spectroscopy studies demonstrated decrease in both direct indirect band gaps nanocomposites, suggesting potential applications optoelectronic devices. Impedance measurements significant enhancement ionic conductivity (three orders magnitude higher than pristine blend) for film containing 1.8 wt% CuCo2O4. real permittivity (ε′) imaginary (ε″) exhibited frequency due interplay various polarization mechanisms. Notably, incorporating led remarkable improvement energy density compared Additionally, barrier observed. These findings demonstrate successful fabrication PEO/PVA-CuCo2O4 enhanced observed improvements suggest promising materials storage devices potentially like light-emitting diodes.

Language: Английский

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Thermal, optical, mechanical, dielectric, and electrical properties of nanocomposites

European Polymer Journal, Journal Year: 2024, Volume and Issue: 218, P. 113337 - 113337

Published: July 25, 2024

Language: Английский

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Towards varying compositions PEO/PMMA/P(VDF-HFP) ternary polymer blend films for versatile flexible dielectrics over 20 Hz to 1GHz broadband device technologies

Materials Today Communications, Journal Year: 2025, Volume and Issue: unknown, P. 112011 - 112011

Published: Feb. 1, 2025

Language: Английский

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Investigations on the optical, dielectric, electrical, and rheological properties of PEG200/ZnO semiconducting nanofluids for soft matter based technological innovations

Hybrid Advances, Journal Year: 2024, Volume and Issue: 5, P. 100140 - 100140

Published: Jan. 10, 2024

Semiconducting nanofluids (SNFs) consisting of poly (ethylene glycol) (PEG200) as a green biocompatible base fluid with homogeneous dispersion eco-friendly zinc oxide (ZnO) nanomaterial, concentrations ranging from 0.01 to 0.20 wt%, are prepared by state-of-the-art ultrasonic cavitation homogenized process. These PEG200/ZnO SNFs characterized employing an ultraviolet-visible (UV-Vis) spectrophotometer, precision inductance-capacitance-resistance (LCR) meter, and rotational viscometer. A detailed analysis 200–800 nm range UV–Vis absorbance spectra these revealed longer stability suspended ZnO nanoparticles in PEG200 fluid, their nanomaterial dependent extinction coefficient tunable dual energy band gaps 3 5 eV. Optical performance recognized the potential applications advances soft matter based optoelectronic photosensitive devices also excellent UV radiation shielding material. The study 20 Hz – 1 MHz dielectric electrical explained that have significant impact on conductivity SNFs, while permittivity electrode polarization relaxation process marginally altered. High static (∼ 22) low about μS/cm order, at 303.15 K, evidence suitability storage devices. rheological behaviour materials is carried out different temperatures 323.15 which illustrates Newtonian characteristics moderate dynamic viscosity activation could be utilized effective heat transfer photovoltaic/thermal systems.

Language: Английский

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Recent advancements and applications in thermally conductive polymer nanocomposites

Polymer-Plastics Technology and Materials, Journal Year: 2024, Volume and Issue: 63(11), P. 1371 - 1420

Published: March 29, 2024

Thermally conductive polymer nanocomposites are more beneficial compared to metal parts in applications like wearable electronics, flexible displays, and electrical devices. This paper presents a comprehensive review of recent progress advancements thermally nanocomposites. The main emphasis has been given the synthesis methods, materials blended with filler that evolved years. Furthermore, article also covers technological challenges being faced future research scope provides insightful motivation for designing developing novel

Language: Английский

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Effect of Hot Pressing on the Optical, Thermal, and Dielectric Properties of Solution Cast Prepared Nanocomposite Films Based on a Poly(Vinylidene Fluoride-co-Hexafluoropropylene) and Poly(Ethylene Oxide) Blend Matrix with Dispersed Zinc Oxide Nanoparticles

Journal of Macromolecular Science Part B, Journal Year: 2024, Volume and Issue: 63(12), P. 1269 - 1285

Published: Feb. 28, 2024

In our research described herein, the hot pressing treatment at 90 °C under 2 tons of pressure on solution cast polymer nanocomposite (PNC) films based a host matrix poly(vinylidene fluoride-co-hexafluoropropylene) (P(VDF-HFP)) and poly(ethylene oxide) (PEO) with varying blend compositions (20, 50, 80 wt% P(VDF-HFP) or PEO) zinc oxide (ZnO) nanofiller, was performed; effects this composition variations optical, thermal, dielectric properties explored. The ultraviolet-visible wavelength range study revealed slightly reduced absorbance little increased energy band gap after films. Differential scanning calorimetry cast-hot pressed (SC-HP) PNC explained thermal stability crystallites also degree crystallinity. broadband measurements these materials, 27 °C, confirmed significant changes in various polarization processes, demonstrating large redistribution constituent interfaces by press treatment. Additionally, film equal compositional ratio further 130 160 step step, characterized to examine properties. thermally treated composite are discussed concerning their use for flexible device applications.

Language: Английский

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Preparation and investigation of suitability of PMMA/PVAc/TBAI/PANI blended polymers films for optoelectronic applications

Optical Materials, Journal Year: 2024, Volume and Issue: 156, P. 115937 - 115937

Published: Aug. 6, 2024

Language: Английский

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Comparative Analysis of Different Nanofillers in Polyvinylidene Fluoride-Hexa-Fluoro Propylene Polymer for Electromagnetic Shielding Applications

Published: Jan. 1, 2025

Language: Английский

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