Antibacterial agent, antibacterial powder coating as well as preparation method and application of antibacterial agent and antibacterial powder coating

The invention discloses an antibacterial agent, an antibacterial powder coating as well as a preparation method and application of the antibacterial agent and the antibacterial powder coating. The antibacterial agent is prepared from the following raw materials: maleic anhydride, an antioxidant, a zinc-silver ion antibacterial agent, an amino silane coupling agent, a titanate coupling agent and butyl stearate. The antibacterial agent disclosed by the invention is an antibacterial agent of a silicate compound carrier containing zinc and silver ions of a net structure. The antibacterial agent can slowly release silver ions and zinc ions in the glass net structure, so the growth of bacteria is effectively inhibited for a long time. Meanwhile, super-weather-resistant polyester resin is added into the antibacterial powder coating, so the whole coating has good weather resistance; furthermore, the good stability of the coating ensures that the antibacterial agent can be slowly released, and an excellent slow-releas