| Autor: |
Guzii, Sergii, Levchenko, Oleg, Tykhenko, Oksana, Lashchivskiy, Vasyl, Kopylova, Tamara |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2023, Vol. 2490 Issue 1, p1-8, 8p |
| Abstrakt: |
In this work, the colloidal-chemical, rheological properties of a liquid material for electromagnetic fields shielding with different contents of Fe-containing shielding filler are studied. Changes in a density of the protective composition and dynamic viscosity were determined depending on the concentration of the Fe-containing filler. Equations describing these dependencies are presented. These dependencies influence the choice of the method of applying protective compositions to the substrate surface. It has been shown that at filler concentrations of 15% and 30% (by weight) they can be applied to the surface by brush or spraying. At concentrations of 45%, it is advisable to apply with a roller, 60%-with a spatula. The wetting angles of the protective composition applied to wood and drywall for various filler concentrations are determined. It is shown that the change in the surface tension with an increase in the filler concentration occurs non-monotonically. The minimum surface tension corresponds to a concentration of 30%. At a concentration of 60%, the surface tension increases by 1.2 times in comparison with the initial value of the surface tension of the initial water-dispersed binder. It was found that an increase in the spreading coefficient leads to a more complete wetting. The paper presents complete data on the dependence of the surface tension on the filler concentration, the average wetting angles, the work of forces of adhesion, cohesion and wetting, the wetting and spreading coefficients. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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