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A kind of preparation method of room temperature curing type micro-nano zinc long-acting antibacterial and antifungal agent

An antibacterial and antifungal agent, curing technology at room temperature, applied in botany equipment and methods, fungicides, plant growth regulators, etc., to achieve excellent long-term antibacterial effect, environment and human friendliness, excellent antibacterial and antifungal effect

Active Publication Date: 2022-08-02
南京凯创协同纳米技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, such disinfectants cannot avoid defects such as corrosiveness and irritation during use.

Method used

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  • A kind of preparation method of room temperature curing type micro-nano zinc long-acting antibacterial and antifungal agent
  • A kind of preparation method of room temperature curing type micro-nano zinc long-acting antibacterial and antifungal agent
  • A kind of preparation method of room temperature curing type micro-nano zinc long-acting antibacterial and antifungal agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Preparation of micro-nano zinc:

[0048] Step 1.1: Dissolve 50 mL of nonylphenol polyoxyethylene ether and 30 mL of n-octanol in 120 mL of cyclohexane, stir with 20 mL of isoamyl alcohol and 200 mL of deionized water to prepare a WPO inverse microemulsion system;

[0049] Step 1.2: Add 1000mL of a mixture of zinc citrate and zinc nitrate with a concentration of 450g / L and 1000mL of hydrazine hydrate solution into 3600mL of WPO inverse microemulsion and mix, and react at 65°C and 4600rpm for 6.5h to obtain particle size Zinc particle solution at 10nm~600nm;

[0050] Step 2.1: Transfer the prepared zinc particle solution to the next reaction kettle, stir at 60 ° C and 4600 rpm rotating speed, and pass in high-speed air flow at the same time to form a cavitation phenomenon;

[0051] Step 2.2: the reaction time is 5 hours, and the micro-nano zinc solution is obtained;

[0052] The TEM image of the prepared zinc particles is shown in figure 1 As shown, the TEM image of the ...

Embodiment 2

[0056] The micro-nano zinc solution prepared in Example 1 is configured into a micro-nano zinc aqueous solution with a concentration of 1000mg / kg, and then successively diluted into a micro-nano zinc solution with a concentration of 800mg / kg, 500mg / kg, 400mg / kg, 300mg / kg Aqueous solutions, micro-nano zinc aqueous solutions with concentrations of 1000 mg / kg, 800 mg / kg, 500 mg / kg, 400 mg / kg, and 300 mg / kg were sequentially labeled as group 5, group 4, group 3, group 2, and group 1.

[0057] The sterilization rate of the micro-nano zinc aqueous solution was determined by the suspension quantitative method in accordance with the "Technical Specification for Disinfection". The test strains were Escherichia coli, Staphylococcus aureus, Candida albicans, and Pseudomonas aeruginosa. The results are shown in Table 1. The micro-nano zinc aqueous solutions of groups 1 to 5 with different concentrations acted on Escherichia coli, Staphylococcus aureus, Candida albicans, and Pseudomonas aer...

Embodiment 3

[0068] A preparation method of a room temperature curing type micro-nano zinc long-acting antibacterial and antifungal agent, comprising the following steps:

[0069] Step 1.1: Dissolve 50 mL of nonylphenol polyoxyethylene ether and 30 mL of n-octanol in 120 mL of cyclohexane, stir with 20 mL of isoamyl alcohol and 200 mL of deionized water to prepare a WPO inverse microemulsion system;

[0070] Step 1.2: Add 1000mL of a mixture of zinc citrate and zinc nitrate with a concentration of 450g / L and 1000mL of hydrazine hydrate solution into 3600mL of WPO inverse microemulsion and mix, and react at 65°C and 4600rpm for 6.5h to obtain particle size Zinc particle solution at 10nm~600nm;

[0071] Step 2.1: Transfer the prepared zinc particle solution to the next reaction kettle, stir at 60 ° C and 4600 rpm rotating speed, and pass in high-speed air flow at the same time to form a cavitation phenomenon;

[0072] Step 2.2: the reaction time is 5 hours, and the micro-nano zinc solution ...

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Abstract

The invention provides a preparation method of a room temperature curing type micro-nano zinc long-acting antibacterial and antifungal agent, comprising the following steps: using a microemulsion method to prepare zinc particles with a particle size of 10nm-600nm in proportion; transferring the prepared nano-zinc particles to a In the next reaction kettle, the micro-nano zinc solution is prepared by cavitation erosion; in another reaction kettle, an initiator and a modifier are added to obtain a polymer A, which is heated and stirred; and an acrylate is added to the polymer A and stirred to obtain a polymerization reaction. substance B; disperse the micro-nano zinc solution in dispersant A to obtain dispersion liquid A; add dispersion liquid A to polymer B and stir well to obtain room temperature curing type micro-nano zinc long-acting antibacterial and mildew-proofing agent The present invention can be formed into a film at normal temperature, and not only has the characteristics of long-term antibacterial property, mildew resistance, washing resistance and wide applicability, but also is safe, non-toxic, environmentally friendly and free of drug resistance.

Description

technical field [0001] The invention relates to the technical field of antibacterial and antifungal agents, in particular to a preparation method of a room temperature curing type micro-nano zinc long-acting antibacterial and antifungal agent. Background technique [0002] Most of the traditional disinfectants are short-acting antibacterial agents, which are easy to volatilize and decompose, and their antibacterial effect decreases rapidly. In 2014, the CDC survey on the status of microbial contamination on the surfaces of more than 200 third-class hospitals across the country showed that 8 hours after the surfaces were disinfected, the total number of bacterial colonies increased significantly. At the same time, such disinfectants cannot avoid defects such as corrosiveness and irritation during use. [0003] The public environment and the living environment are the conventional ways for pathogenic microorganisms to spread. People come into contact with various public facil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N59/16A01N25/04A01P3/00A01P1/00C08F283/10C08F220/14C08F220/20
CPCA01N59/16A01N25/04C08F283/10C08F220/14C08F220/20
Inventor 吴玄峰查进黄世伟陈海亮刘慧梅钱鹏
Owner 南京凯创协同纳米技术有限公司
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