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Preparation process of nanometer zinc oxide with antibacterial performance

A nano-zinc oxide and preparation technology, applied in the direction of zinc oxide/zinc hydroxide, nanotechnology for materials and surface science, nanotechnology, etc., can solve the difficulty of high industrial production, complex process technology, low product purity, etc. problem, to achieve the effect of promoting stability, improving antibacterial performance and antibacterial performance

Inactive Publication Date: 2020-07-28
ANHUI JINHUA ZINC OXIDE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the gas phase method in the prior art has complicated technology, low product purity, residual raw materials, high temperature environment, and high production cost, so it has high difficulty in industrial production

Method used

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  • Preparation process of nanometer zinc oxide with antibacterial performance

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] A preparation process of nano-zinc oxide with antibacterial properties, comprising the following steps:

[0060] (1) Preparation of colloid a

[0061] Prepare a calcium chloride-ethanol-water mixed solution, add sodium polyacrylate and silk fibroin to the mixed solution, heat to 35°C, and stir at 1500 r / min for 1 hour to obtain colloid a; the sodium polyacrylate and silk The mass ratio of fibroin is not higher than 1:30; the mass ratio of calcium chloride, ethanol and water in the calcium chloride-ethanol-water mixed solution is 0.8:3:10; silk fibroin accounts for the calcium chloride-ethanol-water mixed solution The quality score of 7.2%. The mass ratio of sodium polyacrylate to silk fibroin is 1:35;

[0062] (2) Preparation of colloid b

[0063] Add sodium hydroxide and cetyltrimethylammonium bromide to the isopropanol solution in turn, stir at 500r / min for 30min, and then add dropwise to the zinc acetate solution, add dropwise while stirring, dropwise add After c...

Embodiment 2

[0069] A preparation process of nano-zinc oxide with antibacterial properties, comprising the following steps:

[0070] (1) Preparation of colloid a

[0071] Prepare a calcium chloride-ethanol-water mixed solution, add sodium polyacrylate and silk fibroin to the mixed solution, heat to 38°C, and stir at 1500 r / min for 1 hour to obtain colloid a; the sodium polyacrylate and silk The mass ratio of fibroin is not higher than 1:30; the mass ratio of calcium chloride, ethanol and water in the calcium chloride-ethanol-water mixed solution is 1:3:10; silk fibroin accounts for the calcium chloride-ethanol-water mixed solution The quality score of 7.6%. The mass ratio of sodium polyacrylate to silk fibroin is 1:40;

[0072] (2) Preparation of colloid b

[0073] Add sodium hydroxide and cetyltrimethylammonium bromide to the isopropanol solution in turn, stir at 500r / min for 30min, and then add dropwise to the zinc acetate solution, add dropwise while stirring, dropwise add After com...

Embodiment 3

[0079] A preparation process of nano-zinc oxide with antibacterial properties, comprising the following steps:

[0080] (1) Preparation of colloid a

[0081] Prepare a calcium chloride-ethanol-water mixed solution, add sodium polyacrylate and silk fibroin to the mixed solution, heat to 36°C, and stir at 1500 r / min for 1 hour to obtain colloid a; the sodium polyacrylate and silk The mass ratio of fibroin is not higher than 1:30; the mass ratio of calcium chloride, ethanol and water in the calcium chloride-ethanol-water mixed solution is 1.0:10; silk fibroin accounts for the mass of the calcium chloride-ethanol-water mixed solution The score was 7.3%. The mass ratio of sodium polyacrylate to silk fibroin is 1:37;

[0082] (2) Preparation of colloid b

[0083] Add sodium hydroxide and cetyltrimethylammonium bromide to the isopropanol solution in turn, stir at 500r / min for 30min, and then add dropwise to the zinc acetate solution, add dropwise while stirring, dropwise add Afte...

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Abstract

The invention discloses a preparation process of nanometer zinc oxide with antibacterial performance, belonging to the technical field of environmental protection. The preparation process comprises the following steps: (1) preparation of a colloid a; (2) preparation of a colloid b; (3) colloid mixing; and (4) electric field treatment. The antibacterial property of the zinc oxide prepared by usingthe method is greatly improved; and surface charges of the nanometer zinc oxide are increased by introducing silk fibroin, and the surface charges react with bacteria carrying negative charges on thesurface to destroy the surface structure of the bacteria, so the antibacterial property of the zinc oxide is improved.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, in particular to a preparation process of nano-zinc oxide with antibacterial properties. Background technique [0002] Nano-zinc oxide (nano-ZnO), as a new type of multifunctional inorganic nanomaterial, has excellent antibacterial properties and the advantages of nanocrystalline grains. One of the hot spots. [0003] In the prior art, nano-zinc oxide is prepared by gas-phase method. The gas-phase method is to change the raw material into gas through a certain method (heating, etc.) or directly use the physical or chemical reaction of the gas raw material to complete the material preparation. Generally divided into condensation method, deposition method, oxidation method. Li Xuelian et al. used the chemical vapor deposition method to use zinc acetate acetonate as the precursor, lithium gallate as the substrate, high-purity oxygen as the reactive gas, and nitrogen as the carrier...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G9/02A01N59/16A01P1/00B82Y30/00B82Y40/00
CPCC01G9/02A01N59/16B82Y30/00B82Y40/00
Inventor 刘艺
Owner ANHUI JINHUA ZINC OXIDE CO LTD
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