Deformable dispersed particles, calculation of compositions and technology for obtaining highly filled polymer composite materials

Abstract

The main methods for determining the maximum content of the dispersed phase and designing the compositions of polymer composite materials (PCM) with different types of dispersed structure are considered on the example of rice straw powder (RSP) particles deforming under pressure.It is shown that different methods for determining the maximum content of RSP in PCM make it possible to obtain data on the packing and internal porosity of RSP particles.It has been established that dispersed RSP particles deform under pressure, and at a pressure of ~500 MPa their density almost reaches the value of the true density of the substance (~1.55 g/cm3).The maximum content of RSP with deformable particles in dispersed PCM can reach ~95 vol.%, which significantly expands the possibilities of polymer materials science and makes it possible to practically solve the environmental problem of using agricultural waste in the form of rice straw.