METHOD OF PREPARING REINFORCED POLYMERIC MATERIALS Russian patent published in 1999 - IPC

FIELD: chemistry of polymers. SUBSTANCE: method of preparing reinforced polymeric materials based on epoxy binder comprising epoxy-diane resin, hardening system, filler, namely viscous filament, or capron filament, nitrile-acrylonitrile filament, comprises impregnation of filler with resin, heat treatment and impregnation with hardening system. Capron filament treated with magnetic field is used prior to impregnation thereof with hardening system. Protective polymer, namely butadiene- styrene latex or adhesive are added to hardening system (weight ratio of components (water, hardener and protective polymer) in hardening system is 1.7-2.3: 0.5- 1.5:0:7-1.3. Treatment is carried out at 60-80 C. EFFECT: greater breaking stress at static bending and higher specific viscosity of polymeric composite materials and cheaper materials used. 8 dwg, 2 tbl