High-strength flame-retardant polymer modified coating material suitable for three-proofing tarpaulin and preparation method of high-strength flame-retardant polymer modified coating material

The invention relates to the technical field of three-proofing tarpaulin coating materials, and particularly discloses a high-strength flame-retardant polymer modified coating material suitable for three-proofing tarpaulin. The high-strength flame-retardant polymer modified coating material comprises the following raw materials in parts by weight: 50-60 parts of a polymer body, 15-20 parts of a silicon carbide whisker synergist, 4-8 parts of a flame retardant, 1-4 parts of a cross-linking agent, 1-3 parts of a coupling agent and 55-65 parts of a solvent. According to the high-strength flame-retardant polymer modified coating material, the polymer, the flame retardant, the cross-linking agent and the solvent are matched to serve as a matrix, the silicon carbide whisker synergist and the nano-silicon dioxide coordinated graphene modified bidirectional agent serve as a synergistic agent, the two components are coordinated to achieve a synergistic effect, the raw material interface property is optimized through t