Magnetizable Membranes Based on Cotton Microfibers, Honey, Carbonyl Iron, and Silver Nanoparticles: Effects of Static Magnetic Fields and Medium-Frequency Electric Fields on Electrical Properties

• Published in: Magnetochemistry 2023-01, Vol.9 (1), p.19
• Main Authors: Bica, Ioan, Anitas, Eugen Mircea, Sfirloaga, Paula
• Format: Article
• Language: English
• Subjects: Biomedical materials; carbonyl iron; Carbonyls; Cellulose; Cotton; cotton microfibers; Dielectric loss; Electric fields; Electrical properties; Electrical resistivity; Flux density; Honey; Information storage; Iron; Keratin; Magnetic fields; Magnetic flux; Magnetic properties; magnetizable membrane; Mechanical properties; Membranes; Microfibers; Microparticles; Microscopy; Nanoparticles; Silver
• ISSN: 2312-7481; 2312-7481
• DOI: 10.3390/magnetochemistry9010019

In this work, we present the manufacturing process of magnetizable membranes based on cotton microfibers, honey, carbonyl iron, and three different concentrations of silver microparticles. Each membrane is used as a dielectric material for the fabrication of electrical devices. By using the plane capacitor method, the electrical capacitance and dielectric loss tangent are measured in a medium-frequency alternating field superimposed on a static magnetic field. From the obtained data, the time constants of the devices, the components of complex dielectric permittivity, and the electrical conductivity of the membranes as a function of the electric field frequency and magnetic flux density can be extracted. The results show that the obtained membranes can be useful for the fabrication of low-cost and environmentally friendly magneto-active membranes that are required for various technical and biomedical applications.