The creation of the phonon spectrum according to the specific heat for composite materials

The paper proposed a numerical method for determining the phonon density of States of the composite materials according to the experimental data of the heat capacity of composite materials based on polytetrafluoroethylene matrix (PTFE). The maximum boundary values were analyzed and phonon spectra intensity depending on the structure of macromolecules "matrix + filler". The results obtained by calculations are in good agreement with the experimentally determined phonon spectra for a number of the studied composites filled with carbon fiber.