The work is aimed to develop technologies for heterogeneous materials and to study their physical and mechanical characteristics based on epoxy oligomers ED-20 and Praimer-204 filled with silica fume - tarkosil. The experiments show that filler’s size and concentration depends on mechanical properties of heterogeneous material. The maximum rise of Young modulus at 12% volume filler concentration makes up 23%. When ultrasound dispersion is used maximal rise of the elasticity modulus (32%) is fixed at 25% nanopowder content. It was shown that Young modulus depends on the characteristic size of the filler at a constant concentration. Experimental and theoretical Young modules were compared.

Key words: heterogeneous material, nanoparticles, epoxy resin, mechanical properties.