Nano polyaniline/ZnO composite antibacterial agent and preparation method thereof

A composite antibacterial agent and nano-polyaniline technology, which is applied in the field of polyaniline/ZnO composite antibacterial agent and its preparation, can solve the problems of process stability, quality repeatability control, nano powder storage and transportation technical problems are not very good To solve and control the shape, distribution, particle size, performance of the particles and the control and dispersion of aggregates, the research is not enough, and the development of nano-zinc oxide application technology is not enough, so as to achieve good synergistic antibacterial properties, good thermal stability and biocompatibility. The effect of excellent antibacterial effect

Inactive Publication Date: 2012-11-21
KUNMING UNIV OF SCI & TECH
View PDF4 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Mainly manifested in: the lack of in-depth research on the process mechanism of synthesizing nano-zinc oxide and its composites, and the lack of research on the technology of controlling the shape, distribution, particle size, performance, and aggregate control and dispersion of p

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0019] Example 1: The specific operation of the preparation method of the polyaniline antibacterial agent is as follows:

[0020] (1) Weigh 1g of sodium hydroxide and dissolve it in 50ml of distilled water, add aniline monomer with a molar concentration of 0.5 mol / L to it, stir evenly at room temperature to form liquid A; weigh solid particles of ammonium persulfate and dissolve in distilled water And stir evenly to form liquid B, in which the molar ratio of aniline to ammonium persulfate is 5:1; pour liquid B into liquid A quickly at room temperature, and let stand at room temperature for 10 h;

[0021] (2) Separate the reaction system of step (1) by filtration under reduced pressure, and wash with distilled water and ethanol successively until the pH of the washing liquid is 7;

[0022] (3) The obtained solid was vacuum dried at 70 ℃ for 12 h to obtain polyaniline antibacterial agent.

[0023] The diameter of the polyaniline fiber obtained through the above-mentioned comparative exp...

Example Embodiment

[0024] Example 2: The preparation method of the nano polyaniline / ZnO composite antibacterial agent, the specific operation is as follows:

[0025] (1) Weigh 1g of sodium hydroxide and dissolve it in 50 ml of distilled water, add aniline monomer with a molar concentration of 0.1 mol / L to it, stir evenly at room temperature to form liquid A; weigh ammonium persulfate and zinc nitrate solids The particles are dissolved in distilled water and stirred evenly to form liquid B, in which the concentration of zinc nitrate is 1 / 20 of the molar concentration of aniline, and the molar ratio of aniline to ammonium persulfate is 10:1; liquid B is quickly poured into A at room temperature In the solution, let stand for 8 h at room temperature;

[0026] (2) Separate the reaction system of step (1) by filtration under reduced pressure, and wash with distilled water and ethanol in sequence until the pH of the washing liquid is 7;

[0027] (3) The obtained solid was vacuum dried at 60 ℃ for 10 h, and...

Example Embodiment

[0030] Example 3: The preparation method of the nano polyaniline / ZnO composite antibacterial agent, the specific operation is as follows:

[0031] (1) Weigh 2g of sodium hydroxide and dissolve it in 50ml of distilled water, add aniline with a molar concentration of 0.3 mol / L to it, stir evenly at room temperature to form liquid A; weigh ammonium persulfate and zinc nitrate solid particles and dissolve them in Distilled water and stir evenly to form liquid B, in which the concentration of zinc nitrate is 1 / 15 of the molar concentration of aniline, and the molar ratio of aniline to ammonium persulfate is 8:1; pour liquid B into liquid A quickly at room temperature, Let stand for 10 h at room temperature;

[0032] (2) Separate the reaction system of step (1) by filtration under reduced pressure, and wash with distilled water and ethanol successively until the pH of the washing liquid is 7;

[0033] (3) The obtained solid was vacuum dried at 80 ℃ for 8 h, and finally the dried solid wa...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Diameteraaaaaaaaaa
Diameteraaaaaaaaaa
Diameteraaaaaaaaaa
Login to view more

Abstract

The invention discloses a nano polyaniline/ZnO composite antibacterial agent and a preparation method of the nano polyaniline/ZnO composite antibacterial agent. According to the invention, the quick mixing method to synthesize precursor polyaniline/Zn(OH)2 by one step is used, the precursor is dried and then the polyaniline/ZnO composite antibacterial agent is obtained; the polyaniline exists in a nano-fiber manner; zinc oxide exists in a spherical structure with diameter of 20-200nm; the nano polyaniline/ZnO composite antibacterial agent provided by the invention has excellent bactericidal action for different strains such as escherichia coli, staphylococcus aureus and bacillus subtilis. The composite antibacterial agent is low in material cost, simple in preparation and good in thermal stability; the nano ZnO particle has uniform distribution and large specific surface area; the problem that the harmful components such as surfactant, stabilizer and so on are added during the preparation process of the nano ZnO antibacterial agents on the market can be overcome; the antibacterial agent has excellent biocompatibility, has no toxicity and harmfulness for body, is easy to commercially produce and has high economic and social value.

Description

technical field [0001] The invention relates to a polyaniline / ZnO composite antibacterial agent and a preparation method thereof, belonging to the field of antibacterial materials and preparations. technical background [0002] Health has always been one of the topics that people pay the most attention to. People are frequently exposed to a large number of bacteria in their daily work and life. Most of these bacteria are pathogenic bacteria, which directly threaten people's health. In order to protect human health, the development and application of antibacterial materials is an effective method. However, with the extensive use of chemical drugs such as antibiotics, disinfectants and bactericides, more and more bacterial mutation populations caused by drug resistance have caused frequent global bacterial disasters. In order to prevent the occurrence of bacterial disasters, it is imperative to develop and apply new antibacterial materials. Inorganic antibacterial material...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): A01N59/16A01N25/10A01P1/00
Inventor 陕绍云李丹贾庆明王亚明蒋丽红
Owner KUNMING UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap