The invention provides an elastic cured foam material for an underground goaf and belongs to the technical field of
fire prevention and fire extinguishment of the underground goaf. The elastic cured foam material for the underground goaf, provided by the invention, is prepared from the following raw materials in parts by weight: 30 to 50 parts of polyisocyanate, 2 to 10 parts of a
polyol compound,1 to 5 parts of a
foaming agent, 2 to 6 parts of a chain
extender, 1 to 6 parts of a crosslinking agent, 0 to 10 parts of a
flame retardant, 1 to 4 parts of a foam stabilizer, 0 to 3 parts of an anti-
ageing agent, 0 to 6 parts of filler, 0.1 to 2 parts of a catalyst and 0 to 5 parts of a
softening agent. The elastic cured foam material for the underground goaf, provided by the invention, has theadvantages of great stretching rate, strong compression resisting capability and good sealing performance, and also has the advantages of rapid foaming speed, short
curing time and long
ageing time.