The main physical conceptions, used in fractals theory -- The fractal analysis of polymer composite mediums components -- The fractal analysis of polymeric matrix structure change at particulate filler introduction -- The aggregation of filler particles in polymer composites: analysis within the frameworks of irreversible aggregation models -- The fractal analysis of interfacial layers structure and properties -- Structural aspects of interfacial adhesion in particulate-filled polymer composites -- The structural treatment of critical defect for particulate-filled polymer composites -- The fractal mechanics of particulate-filled polymer composites -- The polymer composites structure and properties within the frameworks of multifractal formalism -- The description of filler particles network as mass multifractal -- Synergetics of polymer composites