Heat-insulating nano coating and preparation method thereof

The invention discloses a heat-insulating nano coating and a preparation method thereof, and particularly relates to the technical field of heat-insulating coatings. The heat-insulating nano coating is prepared from the following raw materials in parts by weight: 80 to 100 parts of nano rare earth powder, 0.5 to 3 parts of modified solvent, 8 to 16 parts of amino-terminated hyperbranched polymer, 0.5 to 5 parts of hydrophilic nano silicon dioxide, 10 to 30 parts of flame retardant, 30 to 50 parts of resin, 0.5 to 3 parts of anti-settling agent, 1 to 5 parts of wetting dispersant, 2 to 8 parts of diluent, 1 to 6 parts of surfactant and 2 to 8 parts of deionized water. The prepared heat insulation nano coating is used for preparing emergency rescue individual protection equipment, the thermal protection performance of the emergency rescue individual protection equipment is improved, secondary burn of an external heat source to rescue workers is avoided, the life safety self-guarantee capacity of individuals and