Graphene antibacterial modified plastic film for medicine packaging and preparation method

A technology for graphene and packaging, which is applied in the field of graphene antibacterial modified plastic film and preparation for pharmaceutical packaging, which can solve the problems of poor antibacterial performance and barrier performance, and achieve the goal of improving barrier performance, promoting uniform dispersion, and improving antibacterial performance Effect

Inactive Publication Date: 2020-06-16
CHENDU NEW KELI CHEM SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the defects of poor antibacterial performance and barrier performance of the current pharmaceutical packaging plastic film, the present invention proposes a graphene antibacterial modified plastic film for pharmaceutical packaging and a preparation method, which significantly improves the barrier performance and antibacterial performance of the pharmaceutical packaging film. And improve the safety of pharmaceutical packaging film

Method used

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  • Graphene antibacterial modified plastic film for medicine packaging and preparation method

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Comparison scheme
Effect test

Embodiment 1

[0026] A preparation of graphene antibacterial modified plastic film for pharmaceutical packaging, comprising the following steps:

[0027] S1. Add graphene oxide dispersion liquid and silver-based zeolite antibacterial agent to chitosan acetic acid solution, stir to make chitosan surface groups react with graphene oxide surface groups to closely combine, then add plasticizer The prolamin solution is mixed, ultrasonically dispersed, and stirred to obtain a mixed film-forming liquid; wherein the mass ratio of chitosan acetic acid solution, graphene oxide dispersion, silver-based zeolite antibacterial agent, and plasticizer-containing prolamin solution is 30:15:8:1; the mass concentration of plasticizer in the gliadin solution containing plasticizer is 3%, and the plasticizer is oleic acid; the stirring speed is 450r / min, and the stirring time is 60min ;

[0028] S2. Put the mixed film-forming solution obtained in step S1 into a spray bottle, add a reducing agent to reduce grap...

Embodiment 2

[0031] A preparation of graphene antibacterial modified plastic film for pharmaceutical packaging, comprising the following steps:

[0032] S1. Add graphene oxide dispersion liquid and silver-based zeolite antibacterial agent to chitosan acetic acid solution, stir to make chitosan surface groups react with graphene oxide surface groups to closely combine, then add plasticizer The prolamin solution is mixed, ultrasonically dispersed, and stirred to obtain a mixed film-forming liquid; wherein the mass ratio of chitosan acetic acid solution, graphene oxide dispersion, silver-based zeolite antibacterial agent, and plasticizer-containing prolamin solution is 40:12:9:0.8; the mass concentration of plasticizer in the prolamin solution containing plasticizer is 5%, and the plasticizer is polyethylene glycol; stirring speed is 550r / min, stirring time 30min;

[0033] S2. Put the mixed film-forming solution obtained in step S1 into a spray bottle, add a reducing agent to reduce graphene...

Embodiment 3

[0036] A preparation of graphene antibacterial modified plastic film for pharmaceutical packaging, comprising the following steps:

[0037] S1. Add graphene oxide dispersion liquid and silver-based zeolite antibacterial agent to chitosan acetic acid solution, stir to make chitosan surface groups react with graphene oxide surface groups to closely combine, then add plasticizer The prolamin solution is mixed, ultrasonically dispersed, and stirred to obtain a mixed film-forming liquid; wherein the mass ratio of chitosan acetic acid solution, graphene oxide dispersion, silver-based zeolite antibacterial agent, and plasticizer-containing prolamin solution is 25:20:6:1.5; The mass concentration of plasticizer in the gliadin solution containing plasticizer is 1.5%, and described plasticizer is stearic acid; Stirring speed is 380r / min, and stirring time is 45min;

[0038] S2. Put the mixed film-forming solution obtained in step S1 into a spray bottle, add a reducing agent to reduce g...

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Abstract

The invention belongs to the technical field of plastic film preparation, and particularly relates to a graphene antibacterial modified plastic film for medicine packaging and a preparation method. Graphene oxide is firstly added to be blended with chitosan to generate group reaction for close combination, so that uniform dispersion of the graphene oxide is promoted, and the barrier property of amedicinal packaging film is remarkably improved; and furthermore, a silver zeolite antibacterial agent is dispersed in the film and has a synergistic effect with chitosan and graphene with a natural antibacterial effect, so that the antibacterial property of the medicinal packaging film is greatly improved, the used materials are safe and non-toxic, and the safety of the medicinal packaging film is improved.

Description

technical field [0001] The invention belongs to the technical field of plastic film preparation, and in particular relates to a graphene antibacterial modified plastic film for medicine packaging and a preparation method thereof. Background technique [0002] As the name implies, pharmaceutical packaging film is used for the packaging of pharmaceuticals. The requirements of pharmaceuticals for flexible packaging film materials: to prevent the contents from deteriorating, the main measures are moisture-proof, gas-blocking, light-proof, sterile, and sealed; in order to ensure the quality of the contents and filling The safety of packaging, storage and transportation also requires packaging materials to have hygienic properties such as ensuring content stability, heat resistance, and no migration of harmful substances; materials are required to have certain hygienic properties such as tensile, impact, puncture, and tear resistance . Plastic composite film packaging for granule...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29D7/01
CPCB29D7/01
Inventor 陈庆昝航
Owner CHENDU NEW KELI CHEM SCI CO LTD
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