Nano paint and application thereof to preparation of thermal insulation temperature-resistance fireproof garment

The invention relates to nano paint and application thereof to preparation of a thermal insulation temperature-resistance fireproof garment; the nano paint comprises raw material components in parts by weight: 10 to 15 weight parts of polymer resin, 40 to 50 weight parts of a solvent, 20 to 25 weight parts of titanium dioxide, 30 to 40 weight parts of silicon dioxide and 6 to 8 weight parts of zinc borate; and a preparation method comprises the steps: uniformly mixing the polymer resin, the solvent and the titanium dioxide in a ratio, regulating a pressure to a range of 0.03 to 0.05MPa, and after heating, obtaining a first composition; uniformly mixing the other residual raw material components in a ratio, regulating a pH value to a range of 5.2 to 5.5, and after heating, obtaining a second composition; and mixing the first composition and the second composition, uniformly dispersing a mixture, regulating a pH value to a range of 7.6 to 7.8, and after heating, cooling to the room temperature so as to obtain t