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

Q4 Materials Science Radioelektronika, Nanosistemy, Informacionnye Tehnologii Pub Date : 2022-12-29 DOI:10.17725/rensit.2022.14.415

A. A. Khachaturov, A. Fionov, V. Kolesov, E. E. Potapov, S. Safonov, Rustem T. Tlegenov

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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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基于不同粘弹性弹性体基体的磁性结构复合材料

以含硫调控氯丁橡胶- PCP和冷固化聚二甲基硅氧烷- SKTN-A为基体材料，外加磁性填料:硬磁性填料(SmCo, NdFeB)和软磁性填料(天然磁铁矿Fe3O4, znnico -铁氧体)，在30 ~ 100质量份/ 100质量份的浓度范围内制备了复合材料。研究了所考虑的弹性体组合物的固化动力学，并在此基础上提出了最佳成型模式。样品在高达0.3 T的磁场存在和没有磁场的情况下都被塑造。研究表明，弹性基体在不同固化阶段的粘度对复合材料的微观结构和性能有显著影响。研究了样品的电物理和磁性能。结果表明，与所研究特性的各向异性直接相关的结构程度取决于所使用的矩阵类型，并在SKTN-PCP系列中减小。所研究的材料可以作为受外部影响(磁场或电场)控制的“智能”材料。

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来源期刊

Radioelektronika, Nanosistemy, Informacionnye Tehnologii Materials Science-Materials Science (miscellaneous)

CiteScore

0.60

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0.00%

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期刊介绍： Journal “Radioelectronics. Nanosystems. Information Technologies” (abbr RENSIT) publishes original articles, reviews and brief reports, not previously published, on topical problems in radioelectronics (including biomedical) and fundamentals of information, nano- and biotechnologies and adjacent areas of physics and mathematics. The authors of the journal are academicians, corresponding members and foreign members of the Russian Academy of Natural Sciences (RANS) and their colleagues, as well as other russian and foreign authors on the proposal of the members of RANS, which can be obtained by the author before sending articles to the editor or after its arrival on the recommendation of a member of the editorial board or another member of the RANS, who gave the opinion on the article at the request of the editior. The editors will accept articles in both Russian and English languages. Articles are internally peer reviewed (double-blind peer review) by members of the Editorial Board. Some articles undergo external review, if necessary. Designed for researchers, graduate students, physics students of senior courses and teachers. It turns out 2 times a year (that includes 2 rooms)