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Preparation method of normal-temperature curing type micro-nano zinc long-acting antibacterial mildew inhibitor

An antibacterial and antifungal agent, curing technology at room temperature, applied in botany equipment and methods, fungicides, plant growth regulators, etc., to achieve the effects of environmental and human friendliness, excellent antibacterial and antifungal effects, and excellent long-lasting antibacterial effects

Active Publication Date: 2021-11-19
南京凯创协同纳米技术有限公司
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  • Summary
  • 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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  • Preparation method of normal-temperature curing type micro-nano zinc long-acting antibacterial mildew inhibitor
  • Preparation method of normal-temperature curing type micro-nano zinc long-acting antibacterial mildew inhibitor
  • Preparation method of normal-temperature curing type micro-nano zinc long-acting antibacterial mildew inhibitor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Preparation of micro-nano zinc:

[0048] Step 1.1: Dissolve 50mL of nonylphenol polyoxyethylene ether and 30mL of n-octanol in 120mL of cyclohexane, and stir with 20mL of isoamyl alcohol and 200mL 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, mix them, and react at 65°C and 4600rpm for 6.5h to obtain the particle size Zinc particle solution in the range of 10nm to 600nm;

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

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

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

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 1000 mg / kg, and then diluted successively to form micro-nano zinc solutions with a concentration of 800 mg / kg, 500 mg / kg, 400 mg / kg, and 300 mg / kg. Aqueous solutions, micro-nano zinc aqueous solutions with concentrations of 1000mg / kg, 800mg / kg, 500mg / kg, 400mg / kg, and 300mg / kg are marked as group 5, group 4, group 3, group 2, and group 1 in turn.

[0057] According to the "Disinfection Technical Specifications" suspension quantitative method to determine the sterilization rate of micro-nano zinc aqueous solution, the test bacteria are Escherichia coli, Staphylococcus aureus, Candida albicans, Pseudomonas aeruginosa, and the test time is 20s, 30s, 60s respectively; The results are shown in Table 1. The micro-nano zinc aqueous solutions of different concentrations in groups 1 to 5 acted on Escherichia coli, Staphylococcus aureus, Candida albicans...

Embodiment 3

[0068] A kind of preparation method of normal temperature curing type micro-nano zinc long-acting antibacterial antifungal agent, comprises the following steps:

[0069] Step 1.1: Dissolve 50mL of nonylphenol polyoxyethylene ether and 30mL of n-octanol in 120mL of cyclohexane, and stir with 20mL of isoamyl alcohol and 200mL 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, mix them, and react at 65°C and 4600rpm for 6.5h to obtain the particle size Zinc particle solution in the range of 10nm to 600nm;

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

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

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Abstract

The invention relates to a preparation method of a normal-temperature curing type micro-nano zinc long-acting antibacterial mildew inhibitor. The preparation method comprises the following steps: preparing zinc particles with a particle size of 10-600 nm according to a proportion by using a microemulsion method; transferring the prepared nano-zinc particles into a next reaction kettle, and preparing a micro-nano zinc solution by utilizing cavitation erosion; adding an initiator and a modifier into another reaction kettle, heating and stirring to obtain a polymer A; adding acrylate into the polymer A, stirring and reacting to obtain a polymer B; dispersing the micro-nano zinc solution in a dispersing agent A to prepare a dispersion liquid A; and adding the dispersion liquid A into the polymer B, and fully and uniformly stirring to prepare the normal-temperature curing type micro-nano zinc long-acting antibacterial mildew inhibitor. According to the invention, the normal-temperature curing type micro-nano zinc long-acting antibacterial mildew inhibitor can form a film at normal temperature, has the characteristics of long-acting antibacterial property, mildew resistance, washing resistance and wide applicability, and is safe, non-toxic, environment-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 normal-temperature curing micro-nano zinc long-acting antibacterial and antifungal agent. Background technique [0002] Most traditional disinfectants are short-acting antibacterial agents, which are easy to volatilize and decompose, and their antibacterial effect decreases rapidly. For example, alcohol, hydrogen peroxide and other disinfectants need to be used frequently to meet daily disinfection. In 2014, the survey results of the disease control on the surface microbial contamination of more than 200 tertiary hospitals across the country showed that the total number of bacterial colonies increased significantly 8 hours after the surface was disinfected. At the same time, such disinfectants cannot avoid defects such as corrosiveness and irritation during use. [0003] The public environment and living environment are commo...

Claims

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Application Information

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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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