Antibacterial material for plastic cup, and preparation method thereof

Abstract

The invention relates to the technical field of antibacterial materials for plastic cups, and especially relates to an antibacterial material for a plastic cup, and a preparation method thereof. The preparation method of the antibacterial material for the plastic cup comprises the following steps: crushing high-silicon zeolite, removing impurities, adding the high-silicon zeolite as a nano-silver carrier into a lactic acid solution to obtain a mixture, continuously and uniformly stirring, adding a silver nitrite solution, slowly stirring to obtain silver chloride-loaded high-silicon zeolite, drying, and reducing to obtain a silver-loaded zeolite antibacterial material; dispersing the material in a mixed solution of an antibacterial agent and maleic anhydride, adding styrene-allyl dissolved with an initiator for grafting, carrying out heat preservation reaction at 50-90 DEG C for 0.5-4 hours, cooling to room temperature, filtering, washing, drying and crushing; and uniformly mixing the crushed solid and matrix resin in an internal mixer, feeding into a screw extruder, and extruding and granulating in the screw extruder to obtain the antibacterial plastic master batch with excellent dispersing performance. The prepared master batch is high in antibacterial property and easy to process.

Description

technical field [0001] The invention relates to the technical field of antibacterial materials for plastic cups, in particular to an antibacterial material for plastic cups and a preparation method. Background technique [0002] In the prior art, to obtain a plastic cup with an antibacterial effect, an antibacterial material can be added to the plastic raw material. There are several options for how antimicrobials are used in plastics. First, the antibacterial agent is mixed with the resin before the plastic is molded, and then processed and molded. Second, the antibacterial agent and resin are first mixed and mixed to make antibacterial plastics, and then processed into parts. Third, the antibacterial agent is first made into a high-concentration masterbatch with a carrier resin, that is, an antibacterial masterbatch. [0003] Use antibacterial masterbatch and resin to mix, directly process into antibacterial products or process antibacterial products after mixing and gr...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the defects of poor compatibility between the current antibacterial masterbatch and plastic matrix resin and poor processing performance of antibacterial plastics, the present invention proposes a method for preparing antibacterial materials for plastic cups, and an antibacterial antibacterial material for plastic cups prepared by the method The material can give full play to the antibacterial properties of antibacterial materials, while avoiding the reduction of other processing properties such as the strength and tensile properties of plastics