▎ 摘　　要

NOVELTY - Preparing waterproof MS sealing glue comprises (i) mixing hexachlorocyclotriphosphazene and toluene, and stirring until dissolved, adding p-aminophenyl propargyl ether and 2-(4-aminophenyl) hexafluoroisopropanol, heating up to 70-80℃ under nitrogen atmosphere, slowly adding triethylamine dropwise for 20-30 minutes, cooling, introducing ammonia gas, reacting for 20-24 hours, collecting, washing and removing to obtain flame retardant a monomer containing propargyl; (ii) mixing double-layer silsesquioxane and flame retardant monomer containing propargyl group, adding anhydrous tetrahydrofuran under nitrogen atmosphere, stirring, adding catalyst, reacting, and recrystallizing to obtain flame retardant; and (iii) mixing MS resin, plasticizer, nano-calcium carbonate, graphene, and carbon black, stirring, heating, dehydrating, cooling, adding nitrogen environment vinyl trimethoxy silane, γ-aminopropyl trimethoxy silane, flame retardant and catalyst, mixing uniformly, and defoaming. USE - The method is useful for preparing waterproof MS sealing glue, which is useful in automobile, train, ship, track container, adhering and sealing components e.g. ventilation pipeline. ADVANTAGE - The MS sealing glue has excellent water resistance and medium resistance, excellent flame retardance, high cross-linking density, bonding strength and peeling strength, and high practicability.