ИСТИНА

The prospects of applied use of polymer-based magnetic composite materials have been forcing growing interest in recent years. Such materials are very promising for systems with remote control by the magnetic field. The desire to create composites with controllable properties is supported by the requests of almost all branches of industrial production - from electrical engineering and robotics to electronics and medical equipment. The variety of possible applications is primarily determined by the multifunctionality of the properties of polymer materials. There are examples of magnetically ordered polymers [1]. However, for pronounced ferromagnetic response and tunability of properties, magneto-polymer composites are synthesized. Magnetic polymers typically include magnetic powders such as iron oxides, cobalt, strontium or nickel ferrites, and selected matrix products include epoxy resins, polyurethanes, and polyimides and so on. Such materials have weaker magnetic properties than cast or sintered magnets, but nevertheless, they open new possibilities of flexibility and element shaping for a wide variety of applications. In addition, specific properties of the polymer allow to gain beneficial properties for the composite structure. It is possible to implement self-healing of magnetic polymers, which can be achieved by replacing classical polymer matrices with “self-healing matrices” to obtain durable and reliable materials with damage recovering [2]. This type of materials also includes “Magnetic gels”, which are highly elastic hydrogels with a magnetic filler, which are the main category of composites with enhanced self-healing properties. The usage of conductive and ferroelectric polymers as a carrier allows the design of composites with unique electrical and, what is of special interest, magnetoelectric properties for micro-robotics, electronics and energy conversion systems of various types [3].