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Composite nano germicide and its prepn

A nanocomposite and antibacterial agent technology, applied in the field of nanomaterials, can solve the problems of less antibacterial active ingredients, no antibacterial properties of carrier materials, and large dosage of antibacterial agents, and achieve enhanced affinity, large specific surface area, and improved bactericidal ability and efficiency. Effect

Inactive Publication Date: 2003-01-01
骆天荣
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many reports on nano-inorganic antibacterial agents, most of which are loaded with nano-scale silver, zinc, copper, rare earth elements, etc. on inorganic carrier materials (such as molecular sieves, montmorillonite, calcium carbonate, etc.). Less ingredients, large amount of antibacterial agent; in the patent CN1341358A, a kind of antibacterial agent composed of water-based amino acid silver, amino acid zinc and its decomposition generated nano-metal silver and nano-zinc oxide as the main material is disclosed

Method used

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  • Composite nano germicide and its prepn

Examples

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Embodiment 1

[0015] Embodiment 1 Nanocomposite antibacterial agent and preparation method thereof:

[0016] 1, the nanocomposite antibacterial agent of this example, its each component ratio is: zinc oxide: copper carbonate: silver chloride: cerium sulfate: calcium phosphate: titanium sulfate: cationic imidazoline=85%: 0.1%: 1%: 1 %: 9%: 1.9%: 2%, (percentage by weight), the sum of the proportions of each component is 100%.

[0017] 2. The preparation method of the nano-composite antibacterial agent of this example: prepare zinc-ammonia complex solution with 85% zinc oxide according to the requirements of patent ZL98 1 16820.5, and add 0.1% copper carbonate, 1% silver chloride, and 1% cerium sulfate respectively in order , 9% calcium phosphate, 1.9% titanium sulfate, heat the solution to 40 ° C, chemical co-precipitation at PH = 8.5, add 2% cationic imidazoline solution, filter, wash, dry, and calcinate to obtain the finished product, which is used in plastic products Added in, the antiba...

Embodiment 2

[0018] Embodiment two nanocomposite antibacterial agent and preparation method thereof:

[0019] 1, the nanocomposite antibacterial agent of this example, its each component ratio is: zinc oxide: copper acetate: silver nitrate: thorium sulfate: lanthanum nitrate: glutaraldehyde: nonionic surfactant AEO9=55%: 15%: 12 %: 10%: 2%: 3%: 3%, (percentage by weight), the sum of the proportions of each component is 100%.

[0020] 2. The preparation method of the nanocomposite antibacterial agent of this example: 55% zinc oxide is prepared according to the requirements of the patent ZL981 16820.5 to prepare a zinc-ammonia complex solution, and 15% copper acetate, 12% silver nitrate, 10% thorium sulfate, 2% Lanthanum nitrate, 3% non-ionic surfactant AEO9, heating the solution to 98°C, chemical co-precipitation at PH=4, adding 3% glutaraldehyde, filtering, washing, drying, and calcining to obtain the finished product, which is used in coating products Added in, the antibacterial effect i...

Embodiment 3

[0021] Embodiment three nanocomposite antibacterial agent and preparation method thereof:

[0022]1, the nanocomposite antibacterial agent of this example, its each component ratio is: zinc oxide: copper sulfate: silver nitrate: cerium sulfate: lanthanum chloride: cationic quaternary ammonium salt=55%: 15%: 15%: 10%: 2%: 3%, (percentage by weight), the sum of the proportions of each component is 100%.

[0023] 2. The preparation method of the nanocomposite antibacterial agent of this example: prepare a solution with 55% zinc oxide according to the requirements of patent ZL98 1 16820.5, and add 15% copper carbonate, 15% silver nitrate, 10% cerium sulfate, and 2% lanthanum chloride in sequence 1. Heat the solution to 75°C, chemical co-precipitation at PH=7, add 3% cationic quaternary ammonium salt, filter, wash, dry, and calcinate to obtain a finished product, and add it to textile products for trial, and the antibacterial effect is very good. The killing rate of Staphylococcus...

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Abstract

The present invention relates to nano scale composite antibacterial agent and its preparation method, it is characterized in that during the preparation of nano scale zinc oxide, water soluble metallic salt is added, and uses organic modifier to proceed modification, and passes through the processes of coprecipitation, washing, drying, calcination etc. to obtain the nano grade antibacterial agent. The invented nano composite antibacterial agent is excellent in anti bacterial performance and possesses the advantages of fast, high effect, broad spectrum, durable, no resistance to chemical agentetc.

Description

1. Technical field: [0001] The nanocomposite antibacterial agent disclosed by the invention and its preparation method belong to the technical field of nanomaterials, and in particular relate to a nanocomposite antibacterial agent mainly composed of nanometer zinc oxide and its preparation method. 2. Background technology [0002] As we all know, harmful bacteria are an important factor that causes human diseases and affects health. Therefore, how to eliminate and suppress harmful bacteria has been one of the focuses of scientists from all over the world since the discovery of bacteria. With the continuous development of science and technology, various antibacterial materials emerge in endlessly, which can be roughly divided into inorganic antibacterial agents and organic antibacterial agents. Most of the traditional inorganic antibacterial agents are toxic or corrosive, and their stability is poor, which limits the use of inorganic antibacterial agents. use. Organic antib...

Claims

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Application Information

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IPC IPC(8): A01N59/16
Inventor 骆天荣任真赵永红乔爱萍
Owner 骆天荣
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