Novel of (polymer blend-Fe 3 O 4 ) magnetic nanocomposites: preparation and characterization for thermal energy storage
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Novel of (polymer blend-Fe3O4) magnetic nanocomposites: preparation and characterization for thermal energy storage and release, gamma ray shielding, antibacterial activity and humidity sensors applications Ahmed Hashim1 · Ibrahim R. Agool2 · Kadhim J. Kadhim2 Received: 6 January 2018 / Accepted: 12 April 2018 © Springer Science+Business Media, LLC, part of Springer Nature 2018
Abstract Preparation of (PVA-PEG-PVP-Fe3O4) magnetic nanocomposites and studying their structural, electrical and optical properties have been investigated. The results showed that the D.C., A.C. electrical and optical properties of (PVA-PEG-PVP) blend are improved with increase in F e3O4 nanoparticles concentration. The (PVA-PEG-PVP-Fe3O4) nanocomposites tested for thermal energy storage and release, gamma ray shielding, antibacterial activity and humidity sensors applications with high quality, lightweight and good elastic. The results of showed that the melting and solidification time for thermal energy storage and release decrease with adding Fe3O4 nanoparticles concentrations. The attenuation coefficients of gamma radiation increase with increase in nanoparticles concentration. The inhibition zone for antibacterial application increases with increase in Fe3O4 nanoparticles concentration. The nanocomposites have highly sensitivity for humidity.
1 Introduction Recent Materials Science innovation, the necessity of finding new candidate smart electronic materials has forced many research groups to explore many different types of non-conventional materials in the semiconductor industry [1]. Several semiconducting nanostructured materials have been tested for water splitting to produce clean recyclable hydrogen fuel on a large scale. These metal oxides have attracted more attention for optical, opto-electronic, photovoltaic, gas sensors, phototransistors and diodes, transparent electrodes and solar cell application by virtue of unique combination of their structural, optical, electrical, optoelectronic and photoelectrochemical properties [2]. Polymers and organic materials have been receiving a great deal of attention for their unique features offering to realize lightweight, environmental friendly, flexible and cost effective electronic devices [3]. * Ahmed Hashim [email protected] 1
Department of Physics, College of Education for Pure Sciences, University of Babylon, Hillah, Iraq
Department of Physics, College of Science, Al-Mustansiriah University, Baghdad, Iraq
2
Polymers have been used as insulators in early works because of their dielectric properties and high resistivity. Polymer-based insulators are used in electrical devices to separate conductors without passing current through themselves. The insulator applications of polymers include corrosion protective electronic devices, printed circuit boards and cable sheathing materials. Polymers have several advantages, such as low cost, easy processing, flexibility, good mechanical properties and high strength. In the microelectronic fabrication industry, it are used in
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