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).
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