TY JOUR TI PYRITE CANDICE AS A FILLER FOR COMPOSITE MATERIAL BASED ON STYRENE-BUTADIENE RUBBER KW pyrite cinders KW styrene-butadiene rubber KW composite material KW inactive fillers KW active fillers JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Bondarenko, N.I. AU Kovylova, Y.V. AU Dacenko, A.O. PY 2024 IS 9 PB Belgorod State Technological University named after V.G. Shukhov