Affiliation:
1. National Institute for Research and Development in Electrical Engineering ICPE—CA, 030138 Bucharest, Romania
2. Department of Electrical Measurements and Materials, Gheorghe Asachi Technical University, 700050 Iasi, Romania
Abstract
In this paper, the obtaining and characterization of five experimental models of novel polymer composite materials with ferrite nano-powder are presented. The composites were obtained by mechanically mixing two components and pressing the obtained mixture on a hot plate press. The ferrite powders were obtained by an innovative economic co-precipitation route. The characterization of these composites consisted of physical and thermal properties: hydrostatic density, scanning electron microscopy (SEM), and TG DSC thermal analyses, along with functional electromagnetic tests in order to demonstrate the functionality of these materials as electromagnetic shields (magnetic permeability, dielectric characteristics, and shielding effectiveness). The purpose of this work was to obtain a flexible composite material, applicable to any type of architecture for the electrical and automotive industry, necessary for protection against electromagnetic interference. The results demonstrated the efficiency of such materials at lower frequencies, but also in the microwave domain, with higher thermal stability and lifetime.
Funder
Technical Univ. Iasi
Romanian Ministry of Research, Innovation and Digitalization
Subject
Polymers and Plastics,General Chemistry
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