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Nano-silver antibacterial agent and preparation method and application thereof

An antibacterial agent and nano-silver technology, applied in the field of antibacterial agents, can solve the problems of complex production of nano-silver antibacterial agents, unfavorable industrial production, and restrictions on the development of nano-silver antibacterial agents, and achieve excellent dyeing resistance and anti-discoloration performance, which is conducive to industrialization Production, high safety effect

Active Publication Date: 2022-02-15
广东赞誉防霉科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the production of existing nano-silver antibacterial agents is too complicated, which is not conducive to industrial production and limits the development of nano-silver antibacterial agents.

Method used

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  • Nano-silver antibacterial agent and preparation method and application thereof
  • Nano-silver antibacterial agent and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A preparation method of nano-silver antibacterial agent, comprising the steps of:

[0030] Add 25 parts by weight of zirconium phosphate and 5 parts by weight of citric acid to 100 parts by weight of deionized water to form a suspension, then add 0.8 parts by weight of silver nitrate, stir for 12 hours, then add 2 parts by weight of titanate, After continuing to stir for 12 hours, filter, dry, calcinate and pulverize to obtain the nano-silver antibacterial agent.

[0031] Preferably, the titanate is butyl titanate.

[0032] Preferably, the particle size of the zirconium phosphate is 6 μm.

[0033] Preferably, the temperature of the calcination is 800°C, and the time is 2.5h

[0034] As mentioned above, a nano-silver antibacterial agent can be applied to the preparation of anti-mildew degradable resin.

[0035] The mildew-proof degradable resin is composed of 65 parts by weight of polylactic acid, 35 parts by weight of acrylate grafted modified starch, 15 parts by wei...

Embodiment 2

[0041] A preparation method of nano-silver antibacterial agent, comprising the steps of:

[0042] Add 20 parts by weight of zirconium phosphate and 1 part by weight of citric acid to 100 parts by weight of deionized water to form a suspension, then add 0.3 parts by weight of silver nitrate, stir for 2 hours, and then add 1 part by weight of titanate After continuing to stir for 2 hours, filter, dry, calcinate and pulverize to obtain the nano-silver antibacterial agent.

[0043] Preferably, the titanate is butyl titanate.

[0044] Preferably, the particle size of the zirconium phosphate is 5 μm.

[0045] Preferably, the temperature of the calcination is 700°C, and the time is 2h

[0046] As mentioned above, a nano-silver antibacterial agent can be applied to the preparation of anti-mildew degradable resin.

[0047] The mildew-proof degradable resin is composed of 70 parts by weight of polylactic acid, 30 parts by weight of acrylate grafted modified starch, 10 parts by weight o...

Embodiment 3

[0053] A preparation method of nano-silver antibacterial agent, comprising the steps of:

[0054] Add 30 parts by weight of zirconium phosphate and 10 parts by weight of citric acid to 100 parts by weight of deionized water to form a suspension, then add 1.3 parts by weight of silver nitrate, stir for 24 hours, then add 3 parts by weight of titanate, After continuing to stir for 24 hours, filter, dry, calcinate and pulverize to obtain the nano-silver antibacterial agent.

[0055] Preferably, the titanate is butyl titanate.

[0056] Preferably, the particle size of the zirconium phosphate is 7 μm.

[0057] Preferably, the temperature of the calcination is 900°C, and the time is 3h

[0058] As mentioned above, a nano-silver antibacterial agent can be applied to the preparation of anti-mildew degradable resin.

[0059] The mildew-proof degradable resin is composed of 60 parts by weight of polylactic acid, 40 parts by weight of acrylate grafted modified starch, 20 parts by weig...

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Abstract

The invention relates to the technical field of antibacterial agents, in particular to a nano-silver antibacterial agent and a preparation method and application thereof. The preparation method comprises the steps of: adding 20-30 parts by weight of zirconium phosphate and 1-10 parts by weight of citric acid into 100 parts by weight of deionized water to obtain suspension liquid, then adding 0.3-1.3 parts by weight of silver nitrate and stirring for 2-24 h, then adding 1-3 parts by weight of titanate and continuing to stir for 2-24 hours, and carrying out filtering, drying, calcining and crushing to obtain the nano-silver antibacterial agent. The nano-silver antibacterial agent disclosed by the invention is a broad-spectrum antibacterial agent in which silver ions and titanium dioxide are exchanged and loaded on zirconium phosphate. The antibacterial agent is superfine powder with uniform granularity, has extremely low hygroscopicity and high heat resistance and can be easily mixed and processed in fibers, films and plastic resin molded products. The physical and chemical properties are very stable, and the dyeing resistance and the discoloration resistance are excellent in the processing process and the using process.

Description

technical field [0001] The invention relates to the technical field of antibacterial agents, in particular to a nano-silver antibacterial agent, a preparation method and an application thereof. Background technique [0002] Antibacterial agents refer to a class of agents used to prevent and control plant diseases caused by various pathogenic microorganisms. Agents that can kill or inhibit the growth of pathogenic microorganisms without hindering the normal growth of plants. Fungicides can be classified according to their mode of action, source of raw materials, and chemical composition. Internationally, it is usually used as a general term for agents to prevent and control various pathogenic microorganisms. With the development of fungicides, subclasses such as bactericides, virucides, and algicides are distinguished. [0003] Antibacterial agents are generally divided into inorganic antibacterial agents, organic antibacterial agents and natural antibacterial agents. Ino...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K3/08C08K9/12C08K3/22C08L67/04C08L51/02C08F251/00C08F220/56C08F220/18
CPCC08L67/04C08K3/08C08K9/12C08K3/22C08F251/00C08L2201/06C08K2003/0806C08K2201/011C08K2003/2241C08L51/02C08F220/56C08F220/1804
Inventor 雷青松
Owner 广东赞誉防霉科技有限公司
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