Vol. 14, no.4, 2022


Magnetically Structured Composite Materials Based on Elastomeric Matrices with Different Viscoelastic Properties

Aram A. Khachaturov, Eugene E. Potapov

MIREA – Russian Technological University, https://www.mirea.ru/
Moscow 119435, Russian Federation
E-mail: xa4aram@mail.ru, svitar@yandex.ru
Alexander S. Fionov, Vladimir V. Kolesov, Sergey S. Safonov, Rustem Tlegenov
Kotelnikov Institute of Radioengineering and Electronics of RAS, http://www.cplire.ru/
Moscow 125009, Russian Federation
E-mail: fionov@cplire.ru, kvv@cplire.ru, sergej-safonov-81@bk.ru, bartirust@gmail.com

Received 21 November 2022, peer-reviewed 28 November 2022, accepted 05 December 2022

Abstract:: Composite materials based on elastomeric matrices (sulphur-regulated chloroprene rubber - PCP and cold curing polydimethylsiloxane - SKTN-A) and magnetic fillers: hard magnetic (SmCo, NdFeB) and soft magnetic (natural magnetite Fe3O4, ZnNiCo-ferrite) in the concentration range of 30…100 mass parts per 100 mass parts of the elastomeric matrix have been obtained. The kinetics of curing of the considered elastomeric compositions was studied, on the basis of which the optimal molding modes were proposed. The samples were molded both in the presence of a magnetic field up to 0.3 T and without it. It has been established that the viscosity of the elastomeric matrix at various stages of curing significantly affects the microstructure and properties of the resulting composites. The electrophysical and magnetic properties of the samples have been studied. It is shown that the degree of structuring, which is directly related to the anisotropy of the characteristics under study, depends on the type of matrix used and decreases in the series SKTN-PCP. The studied materials can be used as "smart" materials controlled by an external influence (magnetic or electric field).

Keywords: elastomers, magnetically structured composites, functional material, electrophysical properties, magnetic properties

UDC 678.046, 678.4, 539.4, 620.22, 620.17, 621.315.61, 621.37.029.6

RENSIT, 2022, 14(4):415-426e DOI: 10.17725/rensit.2022.14.415.

Full-text electronic version of this article - web site http://en.rensit.ru/vypuski/article/470/14(4)415-426e.pdf