The present invention discloses an environment-friendly antibacterial plastic packaging material and a preparation method thereof, belonging to the technical field of plastic packaging materials, comprising the following steps: treating starch with a complex enzyme, and then adsorbing and loading an antibacterial agent nano-clay to obtain an antibacterial composite material; modifying bamboo fiber with catecholamine, and then mixing with apple pomace extract and an ionic liquid to obtain modified bamboo fiber; mixing polyvinyl alcohol, the antibacterial composite material, the modified bamboo fiber and a plasticizer, stirring, placing in a twin-screw extruder, extruding, granulating, and casting into a film through a casting machine to obtain the plastic packaging material. The excellent adsorption performance of porous starch can fix metal ions in clay and avoid precipitation of metal ions in clay affecting the use of polyvinyl alcohol plastic packaging materials; the modified bamboo fiber and polyvinyl alcohol are combined through hydrogen bonds to form a cross-linked network, and the modified bamboo fiber can combine with the antibacterial composite material so that the antibacterial composite material is embedded into the cross-linked network.
Country Code: CN
Application Number: CN202410607156.X
