Nano silicon dioxide (SiO2) improved fluorocarbon coating and preparation thereof

The invention relates to a preparation method of nano silicon dioxide (SiO2) improved fluorocarbon coating. The preparation method of the nano SiO2 improved fluorocarbon coating is characterized in that the nano SiO2 improved fluorocarbon coating comprises the following components, by mass, 1% to 5% of nano SiO2, 40% of acrylic resin with solid contents, 25% to 28% of polyvinylidene difluoride, 24% to 27% of fumed SiO2, 0.4% of silver paste, 6% of cellulose acetate, 4% of dispersing agent, 2% to 5% of mixed solvent, and allowance. nano SiO2 is added into the fluorocarbon coating, thus improving contamination corrosion resistance, ultraviolet aging resistance, corrosion resistance and the like of the fluorocarbon coating, and the preparation method of the nano SiO2 improved fluorocarbon coating belongs to the technical field of processing of coatings.