Hole plugging material and preparation method thereof

The invention discloses a hole plugging material and a preparation method thereof, and belongs to the technical field of substation equipment plugging, the hole plugging material is prepared from thefollowing raw materials by weight: 25-35 parts of a binder, 10-15 parts of polymethyl acrylate, 1.5-2.5 parts of polyvinylidene fluoride, 5-10 parts of alumina fiber, 2-3 parts of ramie fiber, 4.5-9 parts of a filler, 4-8 parts of an auxiliary agent, and 30-40 parts of ethyl acetate. According to the present invention, the good comprehensive performances are provided, wherein the test results showthat the sample does not crack or pulverize after the damp-heat resistance test; the fire-resistant grade is grade 3, the flame-retardant and fire-resistant performance is excellent, and the fire-resistant effect is good; according to a water resistance test, the material can be soaked for 4.5-5 days, and the surface of the material is complete and does not swell or crack; the freeze-thaw resistance is cyclically tested f