Lysenkov E. Percolation phenomena in systems based on aliphatic oligoetherdiols and carbon nanotubes

Object of research. Percolation phenomena in systems based on aliphatic oligoetherediols filled with carbon nanotubes (СNT). The establishment of the peculiarities of percolation phenomena in systems based on aliphatic oligoetheridols and crosslinked polyetherurethaned (CPEU) filled with carbon nanotubes was the purpose of the research. For research purposes, methods of dielectric relaxation spectroscopy, differential scanning calorimetry and microscopy were used. It was shown that oligoetherdiol-СNT systems exhibit universal behavior irrespective of the type of matrix, the conditions of preparation and the influence of external factors. A model that describes the electrical conductivity in a wide range of concentrations of CNT is developed. It is established that the revealed patterns of the influence of CNT on percolation phenomena in model systems based on oligoeters are also observed for systems based on CPEU. In this paper, a method for obtaining nanocomposites based on oligoetherdiol and carbon nanotubes with a reduced electric percolation threshold is developed. A number of composite materials based on CPEU and CNT, which can be used as dampening coatings, as well as environment for sensors of temperature, pressure and humidity, have been created.