Nano polymer aerogel fire extinguishing material for preventing and treating high-temperature coal fire and preparation method thereof

The invention discloses a nano polymer aerogel fire extinguishing material for preventing and treating high-temperature coal fire and a preparation method thereof. The excellent heat insulation effectof nanoscale silicon dioxide aerogel is utilized; and by adding an acrylamide monomer and attapulgite, and reacting the acrylamide monomer by utilizing a cross-linking agent and an initiator, the nano polymer aerogel fire extinguishing material is formed and the material has characteristics of high water absorption, strong adhesion and excellent thermal insulation property, and can effectively cover the surface of the coal body during the fire extinguishing so as to wrap a coal body so as to achieve the oxygen isolation and cooling effect. Glycerol added into the fire extinguishing material is heated to undergo chemical reaction to separate out polymeric substances during fire extinguishing, and the polymer has the effect of inhibiting generation of free radicals and can destroy a combustion chain, block combusti