Magnetic materials and polymeric composites based on them possess the
property to absorb electromagnetic energy and convert it to Joule heat. This
property is used for the design of radio-absorbers (RAs) to minimize
electromagnetic radiation and interference, and is also proposed to be used in
tumour-specific hyperthermia, when inductive heating is applied after the
injection of magnetic material (the so-called heat mediator) into the tumour. The
goal of this lecture book is to demonstrate the results obtained by the author and
her research team in the development of ‘magnetic polymeric composites’ for
specific applications as mentioned above.
The development of magnetic-type RAs is usually aimed at the fabrication of
polymeric composites based on a properly selected magnetic filler material
(carbonyl iron, spinel-type ferrites, hexagonal ferrites, alloys, etc.) with given
volume fraction. A more efficient absorption of electromagnetic radiation can be
achieved by using materials with the following set of electromagnetic properties:
high permeability, high magnetic losses, a suitable form of the frequency
dependence of permeability, and a proper ratio between the permeability and
permittivity. The author demonstrated and reported for the first time the
possibility to change the electromagnetic properties of composites by using coreshell-
type magnetic fillers, namely, multi-domain ferrite particles (cores) coated
in-situ by polyaniline (PANI). It is established that the electromagnetic properties
of such core-shell particles can be matched to the properties of a conductive
polymer (the morphology, electrical conductivity, complex permittivity, and
interfacial surface energy), which, in turn, can be controlled through the change
of the synthesis conditions. As a result, single-layer RAs operating in a wide
frequency range were developed. This work was done in cooperation with the
Institute of Macromolecular Chemistry, Academy of Sciences of the Czech
Republic (Prague), the Institute of Macromolecular Compounds, Russian
Academy of Sciences (St. Petersburg), and the Polymer Institute of the Slovak
Academy of Sciences.
| ISBN: | 978-80-7454-871-0 |
|---|
| EAN: | 9788074548710 |
|---|
| Počet stran |
66 stran |
| Datum vydání |
06. 01. 2020 |
| Pořadí vydání |
První |
| Jazyk |
anglický |
| Vazba |
měkké desky, lepená brožura oříznutá po třech stranách |
| Autor: |
Natalia Kazantseva |
| Nakladatelství |
Univerzita Tomáše Bati ve Zlíně |
| Tématická skupina |
999 - nezařazeno |
| Neprodejná publikace. Publikaci je možné poptávat zde: Určeno pro potřeby UTB ve Zlíně |
|---|
Svaz českých knihkupců a nakladatelů