TY JOUR TI ENSURING THE PERFORMANCE CHARACTERISTICS OF INTUMESCENT FIRE-RETARDANT COMPOSITIONS FOR METAL STRUCTURES AT LIQUID HYDROGEN TRANSPORTATION FACILITIES KW intumescent fire-retardant compositions KW metal structures KW liquid hydrogen KW cryogenic temperatures KW carbon nanoparticles KW astralenes KW thermal stability KW adhesive strength JO NATURAL AND MAN-MADE RISKS (PHYSICO-MATHEMATICAL AND APPLIED ASPECTS) AU Sorokin, I.A. AU Demidov, N.D. PY 2025 IS 2025 PB Saint-Petersburg University of State Fire Service of Emercom of Russia