Optimization of CoFeO Nanoparticles and Graphite Fillers to Endow Thermoplastic Polyurethane Nanocomposites with Superior Electromagnetic Interference Shielding Performance

Overview

Journal Nanoscale Adv

Publisher Royal Society of Chemistry

Specialty Biotechnology

Date 2024 Apr 18

PMID 38633039

Authors

Anju

Milan Masar

Michal Machovsky

Michal Urbanek

Pavol Suly

Barbora Hanulikova

Jarmila Vilcakova

Ivo Kuritka

Raghvendra Singh Yadav

Affiliations

Soon will be listed here.

Abstract

The rapid growth, integration, and miniaturization of electronics have raised significant concerns about how to handle issues with electromagnetic interference (EMI), which has increased demand for the creation of EMI shielding materials. In order to effectively shield against electromagnetic interference (EMI), this study developed a variety of thermoplastic polyurethane (TPU)-based nanocomposites in conjunction with CoFeO nanoparticles and graphite. The filler percentage and nanocomposite thickness were tuned and optimized. The designed GF15-TPU nanocomposite, which has a 5 mm thickness, 15 weight percent cobalt ferrite nanoparticles, and 35 weight percent graphite, showed the highest total EMI shielding effectiveness value of 41.5 dB in the 8.2-12.4 GHz frequency range, or 99.993% shielding efficiency, out of all the prepared polymer nanocomposites. According to experimental findings, the nanocomposite's dipole polarization, interfacial polarization, conduction loss, eddy current loss, natural resonance, exchange resonance, multiple scattering, and high attenuation significantly contribute to improving its electromagnetic interference shielding properties. The created TPU-based nanocomposites containing graphite and CoFeO nanoparticles have the potential to be used in communication systems, defense, spacecraft, and aircraft as EMI shielding materials.

Citing Articles

Structure and Functional Characteristics of Novel Polyurethane/Ferrite Nanocomposites with Antioxidant Properties and Improved Biocompatibility for Vascular Graft Development.

Pergal M, Brkljacic J, Vasiljevic-Radovic D, Steinhart M, Ostojic S, Dojcinovic B Polymers (Basel). 2025; 17(2).

PMID: 39861225 PMC: 11768855. DOI: 10.3390/polym17020152.

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