Quaternary ammonium salt/copper pyrithione/montmorillonite composite antibacterial material as well as preparation method and application thereof

The invention relates to the field of marine fouling protection and sterilization materials, in particular to a quaternary ammonium salt/copper pyrithione/montmorillonite composite antibacterial material and a preparation method and application thereof.The quaternary ammonium salt/copper pyrithione/montmorillonite composite antibacterial material takes montmorillonite as a carrier, and quaternary ammonium salt and copper pyrithione are inserted between montmorillonite layers; the preparation method comprises the following steps: preparing copper-loaded montmorillonite through ion exchange, and introducing pyrithione anions and quaternary ammonium salt into the copper-loaded montmorillonite to prepare the quaternary ammonium salt/copper pyrithione/montmorillonite composite antibacterial material. The material is good in adsorption performance, high in stability and durability, capable of keeping the effect of killing microorganisms for a long time, capable of reducing the frequency and cost of preservative tre