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Polymeric materials that contain inorganic fillers demonstrate a unique set of physical properties due to the combination of matrix elasticity and filler strength. This paper reports determining the effect of dispersed aluminum particles on the properties of polyvinylidene fluoride-based materials. This study result is the fabrication of a series of composite materials using a piston extruder. Their functional characteristics have been explored using the methods of thermophysical and mechanical analysis, dilatometry, and acoustic spectroscopy. It was established that the introduction of dispersed aluminum particles leads to the loosening of the matrix, which may indicate the transition of macro macromolecules from the crystalline phase to the boundary layer around the filler. This feature of structure formation and the uniform distribution of filler particles ensured the improvement of the functional characteristics of the materials obtained. It has been shown that with an increase in the content of filler in the system to 5% the thermal conductivity increases from 0.17W/(m·K) to 1.55W/(m·K). The introduction of the filler leads to an improvement in the heat resistance of the materials obtained, by 17K. The increase in both melting point and destructiveness is explained by the formation of a more perfect polymer structure with a higher degree of crystallinity. An increase in the speed of ultrasound propagation was identified, by 67%, as well as in the tensile strength, by 36%, in the materials obtained, which can be explained by contributions from the filler, which has greater sound conductivity and mechanical strength than the polymer matrix. Such systems show the reinforcing effect of aluminum particles on the polymer matrix, so they could be used as structural materials with improved functional characteristics

The ionic association in nanocomposite polymer electrolytes based on polyether, lithium perchlorate and nanosized laponite was studied using the data of ionic conductivity and Fuoss-Kraus formalism. It was established that with increasing salt content, the conductivity of the electrolyte initially increases, reaching a maximum at 1-1.3 mol/kg with a subsequent decrease, which is associated with ionic association. It is found that increasing the temperature and the introduction of the filler increases the number of free ions, which leads to an increase in conductivity. The introduction of nanoclay into the polymer electrolytes leads to an increase in their electrical conductivity. This method of modification is can be used for the development of polymer electrolytes with improved functional characteristics for lithium current sources.

The structure features and intercalation processes in oligoethylene glycol (OEG)-based systems and organoclay were studied using X-ray diffraction analysis. It is established that after the introduction of surfactants, the interlayer distance in montmorillonite (MMT) increased. This indicates the intercalation process of surfactant molecules into the interlayer space of the MMT. After introduction to polymer matrix the increase in the interlayer distance is observed. This indicates the intercalation of two monolayers of OEG and the formation of quasibilayer structures. It is shown that the structure of OEG-based systems significantly depends on the content of the nanofiller. Partial processes of intercalation are observed in OEG-organoclay nanocomposites.

The research of features of electrical conductivity of polyurethane nanocomposite materials, filled with multiwalled carbon nanotubes depending on pressure is done using the impedance spectroscopy method. The conductivity dependences of the systems based on polyurethane and multiwalled carbon nanotubes from the applied external pressure are received, and these dependences are also modelled in the frame of the scaling approach and the percolating theory. It is shown that the probed systems are perspective and can be used as piezoresistive materials for sensors of pressure. It was shown, that sensor, which contains 3 % nanotubes, demonstrates the greatest speed of reacting and sensitiveness.

The relaxation processes in nanocomposite polymer electrolytes based on polyethylene glycol was studied using the method of dielectric relaxation spectroscopy. The relaxation times and the activation energy was calculated using the Arrenius equation. The extreme behavior of relaxation parameters at the maximal nanofiller content in polymer electrolytes was observed.

We investigated the features of conductivity of polymer electrolytes based on polyethylene glycol, LiClO 4 and organomodified laponite using the method of impedance spectroscopy. It is shown that the electrical conductivity of PEG-based systems is significantly dependent on the salt content. It is found that the conductivity has an extreme dependence on the LiClO 4 content. At a salt concentration of Li/O = 1/4, the conductivity of the system is independent of temperature, indicating the formation of ionic aggregates. The introduction of laponite nanoparticles (1%) into the polymer electrolyte leads to an increase in electrical conductivity by reducing the crystallinity and destruction of ionic aggregates. Further increase in the content of the filler reduces the electrical conductivity.