TY JOUR TI COMPARATIVE STUDY OF COMPOSITE MATERIALS BASED ON DIGLYCYLIC DERIVATIVES OF DIPHENYLMETHANE AND DIPHENYLPROPANE KW diglycidyl ethers of diphenylmethane and diphenylpropane KW hardener KW epoxy composite material KW physico-mechanical and adhesive properties JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Kochergin, Y.S. AU Zolotareva, V.V. PY 2018 IS 3 PB Belgorod State Technological University named after V.G. Shukhov