Low-heat flame-retardant quick-setting roadway spraying foaming sealing material and preparation method thereof

The low-heat flame-retardant quick-setting roadway spraying foaming sealing material provided by the invention solves the problem of compatibility between an inorganic phase and an organic phase, comprehensively exerts the advantages of inorganic and organic, has the characteristics of quick setting, good flame-retardant and antistatic properties, excellent sealing property, excellent storage stability and the like, is used for sealing roadway surrounding rocks, and has the advantages of high sealing property, high sealing performance and the like. And the effects of blocking wind and gas, preventing coal wall weathering, preventing metal net corrosion and the like are achieved. The low-heat flame-retardant quick-setting roadway spraying foaming sealing material is a mixture of a component A and a component B in a volume ratio of 1: 1, wherein the component A comprises 85-95 parts by mass of water glass; 0-4 parts of a chain extender; 0-4 parts of deionized water; 2-6 parts of a catalyst; the component B comp