Antibacterial plastic and production process thereof

By preparing antibacterial fillers containing zinc organic frames and modification additives, combined with linear low-density polyethylene, the problem of degradation of antibacterial effect of antibacterial plastics is solved, and high-efficiency, long-acting and broad-spectrum antibacterial effects are achieved, through electrostatic adsorption and metal cations The release mechanism significantly improves antibacterial performance.

CN119286106AActive Publication Date: 2025-01-10DONGGUAN XINLUN PLASTIC TECH CO LTD
View PDF 3 Cites 1 Cited by

Patent Information

Application Number
CN202411315661.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-09-20
Publication Date
2025-01-10
Estimated Expiration
2044-09-20

AI Technical Summary

Technical Problem

At this stage, the antibacterial effect of antibacterial plastics is average and the antibacterial effect decreases after long-term use, and it is impossible to achieve efficient, long-term and broad-spectrum antibacterial effects.

Method used

An antibacterial plastic production process is adopted to produce zinc organic frames by hydrothermal reaction of raw materials such as 4-aminoimidazole, polyvinylpyrrolidone and zinc nitrate hexahydrate, and react with modified additives and dicyandiamide to form Antibacterial filler, combined with linear low-density polyethylene melt extrusion, produces antibacterial plastic. The antibacterial filler contains a composite structure of quaternary ammonium salt and quaternary phosphonium salt, which can achieve lasting antibacterial effects through electrostatic adsorption and metal cation release mechanisms.

Benefits of technology

The antibacterial plastics prepared by this process maintain high-efficiency and antibacterial effects during long-term use, can effectively adsorb and interfere with bacteria, lead to the destruction of bacterial cell membranes, and accelerate nutrient leakage through zinc cations, significantly improving antibacterial performance.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure SMS_1
    Figure SMS_1
Patent Text Reader

Abstract

The invention discloses an antibacterial plastic and a production process thereof.The antibacterial plastic is prepared from, by weight, 100-120 parts of linear low-density polyethylene and 10-15 parts of antibacterial filler, antibacterial components in the antibacterial plastic are of an organic-inorganic composite structure, the problem of precipitation cannot occur in the long-time use process, and the antibacterial plastic is high in antibacterial performance and good in antibacterial performance. Meanwhile, the antibacterial filler contains a quaternary ammonium salt and quaternary phosphonium salt composite structure, due to the composite structure, the antibacterial filler has positive charges and can be adsorbed on the surfaces of bacterial cells with negative charges through electrostatic adsorption, and a guanidine structure can further adsorb bacteria, so that the normal physiological functions of the bacteria are interfered, the permeability of cell membranes is changed, and the antibacterial effect is improved. And the zinc organic framework can release zinc cations, so that the metal cations are adsorbed on the cell membranes, and the leakage of nutrient substances in bacteria is accelerated.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Method for preparing nano metal-organic framework material by using internal circulation rotating packed bed

    CN112341629A

  • Compositions providing enhanced antibacterial activity against gram-positive bacteria and use thereof

    CN113614092A

  • Method for Manufacturing Filter Membrane for Inhibiting Microorganisms

    KR101931663B1

Cited By

  • Modified filler, antibacterial conductive polyethylene and preparation method and application thereof

    CN122854653A