Choline-based ionic liquid gelation cable buffer layer ablation inhibitor and application method thereof

The invention relates to a choline-based ionic liquid gelation cable buffer layer ablation inhibitor, and belongs to the technical field of insulation for repairing cables. The inhibitor is prepared from 90 to 100 parts of choline chloride, 80 to 150 parts of urea, 5 to 20 parts of polymerizable organic carboxylic acid, 0.25 to 1 part of triallyl isocyanurate, 0.25 to 0.5 part of an oxygen inhibitor and 0 to 21 parts of an initiator. The inhibitor is prepared by the following steps: mixing choline chloride and urea, uniformly stirring to obtain a first mixed solution, mixing and adding polymerizable organic carboxylic acid, triallyl isocyanurate, an oxygen inhibitor and an initiator into the obtained first mixed solution, and uniformly stirring; during application, the inhibitor is injected into a cavity between a buffer layer and a metal sheath of a cable to be repaired, the cable is heated or radiation is adopted to initiate the inhibitor to generate polymerization reaction and gelatinize; therefore, under