Improving the thermophysical properties of polymer composites

To improve the thermophysical properties of polymer composites, their physicochemical modification was carried out by introducing a microdispersed filler of synthesised aluminium-copper charge into the epoxy resin. Based on the dynamics of thermophysical properties depending on the amount of filler in the synthesised aluminium-copper charge, the optimal content of the additive in the epoxy compound was determined, which is 2...2.5 mass%. The introduction of filler into the epoxy oligomer ensures the production of composites with maximum values of thermal properties. The mechanism of formation of a heterogeneous structure of composites in the presence of microdispersed filler is substantiated. There are three structural levels that are formed after the polymerisation of the material: micro-, meso- and macrostructure. It is shown that in the formation of heterogeneous composites, there is a hierarchical combination of structural levels, and the dominant influence of one of them is determined by the nature and content of the filler. It is substantiated that the structure and properties of the composites are determined by the course of structure formation processes: within a single level, between different levels in a cluster, and between clusters.