Silicate-modified polymer grouting material for leakage plugging

A silicate-modified polymer material for leakage plugging, comprising:

• prepolymerized isocyanate and silicate modified aqueous solution with a mass ratio at a range of 1:(1.2-1.4), wherein the prepolymerized isocyanate is a prepolymer obtained by the polymerization of trimethylol phosphine oxide and TDI, and has a chemical structural formula as follows:
• wherein P content of the prepolymerized isocyanate is 4.7%, N content of the prepolymerized isocyanate is 12.7%, and NCO % content of the prepolymerized isocyanate is 19%;
• wherein the silicate-modified aqueous solution comprises:
• liquid sodium silicate, water, and a catalyst;
• wherein the liquid sodium silicate accounts for 82-87% of the silicate-modified aqueous solution by weight, and the water accounts for 12-15% by weight of the silicate-modified aqueous solution, and the catalyst accounts for 1.5-2.5% by weight of the silicate-modified aqueous solution;
• wherein the liquid sodium silicate is an aqueous solution of sodium silicate, and a Baume degree thereof is 40;
• wherein the catalyst is a diethylene glycol solution of triethylenediamine with a concentration of 33%.