Nano-modified water-based paint and preparation method of the sound absorbing multifunction

The present invention discloses a nano-modified water-based multifunctional sound-absorbing coating and preparation method thereof, in parts by weight 28-38 parts of an emulsion, 2-10 parts of a pigment, a filler 30-45 parts, 15-25 parts of water, 4-8 parts of a flame retardant, auxiliary parts 2.25-5.43 composition. The present invention, by optimizing the coating architecture for certain polymer and filler selection, modification and ratio, so as to ensure not only the basic mechanical properties and sound absorption features, along with insulation, moisture, fire, anti-aging, fouling , sterilization, air purification, and many other high-value performance, especially for high indoor environmental requirements and other occasions.