TY JOUR TI The effect of the isocyanate trimerisation catalyst on the chemical composition and strength characteristics of polyurethane-polyisocyanate foams KW polyurethane-polyisocyanate foams KW isocyanate trimerisation KW secondary chemical reactions KW isocyanate to isocyanurate conversion KW residual isocyanate KW allophanate KW carbodiimide KW compressive strength JO From Chemistry Towards Technology Step-By-Step AU Vlasov, R.R. AU Zaycev, S.D. PY 2024 IS 5 PB Yaroslavl State Technical University