Self-repairing heat-proof coating based on dynamic exchange chemistry and preparation method of self-repairing heat-proof coating

The invention discloses a self-repairing heat-proof coating based on dynamic exchange chemistry. The self-repairing heat-proof coating comprises the following components in parts by mass: 100-120 parts of matrix resin; 5-15 parts of a heat-resistant filler; 5-15 parts of a light thermal insulation filler; 5-15 parts of a ceramic forming filler; 10-90 parts of a curing agent; 50 to 200 parts of a diluent; and 0-1.0 part of a process additive. The invention also discloses a preparation method of the self-repairing heat-proof coating based on dynamic exchange chemistry, which comprises the following steps: firstly, dissolving the matrix resin in the diluent to obtain a matrix resin solution; adding a heat-resistant filler, a light heat-insulating filler, a ceramic forming filler, a curing agent and a process additive into the matrix resin solution, and uniformly dispersing to obtain a spraying solution; and the spraying liquid is sprayed to the surface to be sprayed in an air spraying mode. The self-repairing fu