The invention belongs to the technical field of
polyurethane materials, and provides an environment-friendly harmless high-
flame-retardant
polymer material for plugging water and reinforcing
coal androck masses in
coal mines and a preparation method thereof in order to solve the problems of reduced
flame retardancy and environmental
pollution caused by migration of
flame retardant elements of thepolymer material for
coal mine reinforcement. The environment-friendly harmless high-flame-retardant
polymer material is prepared by mixing two components of a main agent and a curing agent, whereinthe main agent is prepared by mixing phenolic
phosphate polyol, polyether
polyol,
polyester polyol, a surfactant and a catalyst according to a certain weight ratio; and the curing agent is any one ora mixture of two of polymethylene
polyphenyl isocyanate,
diphenylmethane diisocyanate and
toluene diisocyanate. The environment-friendly harmless high-flame-retardant
polymer material does not containany
plasticizer; due to the existence of phenolic
phosphonate polyol, not only the
phosphorus content is high, but also a
phosphorus-rich
coke layer with better
thermal stability can be generated when the material is burnt and decomposed; the
phosphorus-rich
coke layer can inhibit the continuous
combustion of matrix resin, effectively inhibits the generation of
combustible gas, and improves the storage stability of the polyol, the
bonding strength of the material and the
hydrolysis resistance.