Dependence of the structure and properties of unfilled and filled compositions based on binary mixtures of hardenable thermoreactive resins on their formula

Crosslinked materials with different phase structures can be produced in hardening of the binary mixtures of unsaturated polyester resins or mixtures of epoxy resins. The dependences of the mechanical and electrophysical properties on the formula of such mixtures have been determined. The properties of filled compositions based on these mixtures with a two-phase structure, which have been produced by selective introduction of the filler only into one phase of the composition, significantly differ from the properties of filled single-phase mixtures and from the properties of two-phase mixtures produced with a uniform distribution of the filler in both phases.