High polymer chemistry coal and rock mass reinforcer for coal mines

The invention provides a high polymer chemistry coal and rock mass reinforcer for coal mines and solves the problems of the existing polyurethane reinforcing material, such as high price, inflammable and toxic properties, poor performance stability and the like. The high polymer chemistry coal and rock mass reinforcer for coal mines provided by the invention comprises components A and B which are the same in volume, wherein the component A consists of polyether polyol, catalyst and fire retardant, and the component B is polyaryl polymethylene isocyanate; the polyether polyol has more than 3 functional groups, hydroxyl value of 450-550 and molecular weight of 300-500; the catalyst is composed of dibutyltin dilaurate and triethylene diamine; and the fire retardant is composed of methyl methylphosphonate, tri(1,3-dichloro-2-propyl) phosphate and sodium silicate. The high polymer chemistry coal and rock mass reinforcer for coal mines provided by the invention belongs to polyurethane grouting agents and silicate modified polyurethane grouting agents, and is an environment-friendly material with resin content of 100% and no volatile organic compounds, and all indexes of the reinforcer completely accord with AQ1089-2011 quality standard of high polymer material for reinforcing coal and rock mass in coal mines.