Thermocuring flame-retardant antifouling polyurethane coating and preparation method thereof

The invention relates to a thermocuring flame-retardant antifouling polyurethane coating and a preparation method thereof.The thermocuring flame-retardant antifouling polyurethane coating is formed by coating and crosslinking a thermocuring flame-retardant antifouling polyurethane coating, and the coating comprises a polyfunctional low-surface-energy curing agent, a modified flame retardant, polyol and a solvent, wherein the polyfunctional low-surface-energy curing agent is obtained by reacting an isocyanate compound, micromolecular polyol and hydroxyl-containing polysiloxane under the catalytic action of a catalyst, and is beneficial to reducing the curing time and curing temperature of a system; the modified flame retardant is obtained by modifying an inorganic flame retardant with phosphate containing hydroxyl or amino, and dispersity and durability are enhanced. The thermocuring flame-retardant antifouling polyurethane coating has the characteristics of good antifouling property, flame retardance, durabil