Реєстраційний номер
2120U009520, Матеріали видань та локальних репозитаріїв
Категорія
Стаття
Назва роботи
Development and study of protective properties of the composite materials for shielding the electromagnetic fields of a wide frequency range
Автор
Glyva V.
Kasatkina N.
Nazarenko V.
Burdeina N.
Karaieva N.
Levchenko L.
Panova O.
Tykhenko O.
Khalmuradov B.
Khodakovskyy O.
Glyva V.
Kasatkina N.
Nazarenko V.
Burdeina N.
Karaieva N.
Levchenko L.
Panova O.
Tykhenko O.
Khalmuradov B.
Khodakovskyy O.
Дата публікації
01-01-2020
Постачальник інформації
Київський національний університет будівництва і архітектури
Першоджерело
https://repositary.knuba.edu.ua/handle/987654321/7496
Видання
Опис
1. The technology of fabrication of a metal-textile material
for shielding electromagnetic fields was developed. It is
based on the influence of a constant magnetic field of high
heterogeneity from two magnetic conductors on a textile
material impregnated with a magnetic fluid containing
ferromagnetic nanoparticles. This has made it possible to
reduce magnetic fluid consumption from 45‒50 g/m2 to
35 g/m2 compared to its counterparts and increase the number
of shielding particles implanted into fabric fibers from
1.5‒1.6 g/m2 to 2.9‒3.0 g/m2.
2. The technology of manufacturing metal-polymeric
material has been developed. It differs from its counterparts
in pre-treatment of a mixture of iron ore concentrate and liquid
polymer by ultrasonic radiation at a frequency of 23 kHz
and amplitude of 45–50 μm. This has enabled an increase in
the dispersity of the iron ore substance by mechanical action
and ensured uniform distribution of particles in the polymer
by intensive ultrasonic mixing.
3. The study of protective properties of a single-layer
textile material has shown that the guaranteed shielding
factor in protection against the magnetic component of the
electromagnetic field of industrial frequency and its harmonics
amounted to 6. The shielding factor of the electrical
component was 1.5. The shielding factor in protection
against an electromagnetic field of ultrahigh-frequency
(2.45 GHz) was 3.6. Such values indicate the suitability
of the studied materials for the manufacture of personal
protective means.
4. Studies of protective properties of the metal-polymer
material have shown that the guaranteed shielding factor for
the magnetic component of the electromagnetic field of industrial
frequency and its harmonics is 3. The shielding factor
for the electrical component is 2. The shielding factor for
the electromagnetic field of ultra-high frequency (2.45 GHz)
is 5.7. Such protective properties indicate the possibility of
using the material as a means of collective protection, for
example in facing surfaces of large areas.
Додано/оновлено в НРАТ
2026-04-20
