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Preparation process of inorganic-organic composite complex antibacterial agent

A preparation process and complex technology, which are applied in animal repellents, plant growth regulators, botanical equipment and methods, etc., can solve the problems of easy generation of silver oxide precipitation, loss of activity, low silver loading, etc. Improve UV resistance, expand the scope of application, and ensure the effect of application effects

Active Publication Date: 2021-10-15
吉祥三宝高科纺织有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this kind of silver ion antibacterial agent has the following defects: (1) the silver loading is low, which affects the efficient performance of antibacterial performance; Application in light-colored products; (3) Poor antibacterial durability, silver ions are easy to form silver oxide precipitation in alkaline environment; (4) Poor salt tolerance, when silver ions encounter products or environments containing chloride ions, it is easy to generate chloride Silver precipitates and loses activity

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] (1) Dissolve 0.2 mol of silver nitrate in deionized water at room temperature to obtain solution I.

[0034] (2) Heat and dissolve 0.2 mol of 3-cyanopyridone in deionized water to obtain solution II.

[0035] (3) Heat the solution I to 50° C. and stir, then add the solution II dropwise, continue heating after the dropwise addition, and keep the reaction under reflux for 5 hours to obtain the solution III.

[0036] (4) montmorillonite is dispersed in solution III, and the consumption of montmorillonite is 3 times of the total mass of silver nitrate and 3-cyanopyridone, and the resulting mixture is placed in a reactor for hydrothermal reaction, and the reaction temperature is 150 °C, the reaction pressure is 5MPa, the reaction time is 6h, after cooling, the solid and liquid are separated, and the obtained solid is vacuum-dried at 70 °C to obtain a complex antibacterial agent.

Embodiment 2

[0038] (1) Dissolve 0.2 mol of silver nitrate in deionized water at room temperature to obtain solution I.

[0039] (2) Heat and dissolve 0.2 mol of 3-cyanopyridone in deionized water to obtain solution II.

[0040] (3) Heat solution I to 60° C. and stir, then add solution II dropwise, continue heating after dropwise addition, and keep it under reflux for 5 hours to obtain solution III.

[0041] (4) montmorillonite is dispersed in solution III, and the consumption of montmorillonite is 5 times of the total mass of silver nitrate and 3-cyanopyridone, and the resulting mixture is placed in a reactor for hydrothermal reaction, and the reaction temperature is 130 ℃, the reaction pressure is 8MPa, the reaction time is 8h, after cooling, the solid and liquid are separated, and the obtained solid is vacuum-dried at 75℃ to obtain a complex antibacterial agent.

Embodiment 3

[0043] (1) 0.2mol silver acetate was heated and dissolved in deionized water to obtain solution I.

[0044] (2) Heat and dissolve 0.2 mol of 3-cyanopyridone in deionized water to obtain solution II.

[0045] (3) Heat the solution I to 60°C and stir, then add the solution II dropwise, continue heating after the dropwise addition, and keep it under reflux for 4 hours to obtain the solution III.

[0046] (4) montmorillonite is dispersed in solution III, and the consumption of montmorillonite is 5 times of the total mass of silver acetate and 3-cyanopyridone, and the resulting mixture is placed in a reactor for hydrothermal reaction, and the reaction temperature is 180 °C, the reaction pressure is 4MPa, the reaction time is 5h, after cooling, the solid and liquid are separated, and the obtained solid is vacuum-dried at 70 °C to obtain a complex antibacterial agent.

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Abstract

The invention discloses a preparation process of an inorganic-organic composite complex antibacterial agent, relates to the technical field of inorganic-organic composite antibacterial agents, and solves the problems of poor discoloration resistance, poor antibacterial durability and poor salt tolerance of a conventional silver ion antibacterial agent through preparation of a complex. The application of the prepared antibacterial agent in light-color products, alkaline environments and products or environments containing chloride ions is successfully realized, the application range of the antibacterial agent is expanded, and the application effect of the antibacterial agent is ensured.

Description

Technical field: [0001] The invention relates to the technical field of inorganic-organic composite antibacterial agents, in particular to a preparation process of an inorganic-organic composite complex antibacterial agent. Background technique: [0002] Antibacterial agents are a class of agents that can kill or inhibit harmful microorganisms such as bacteria and viruses, mainly including organic antibacterial agents and inorganic antibacterial agents. Compared with organic antibacterial agents, inorganic antibacterial agents have the characteristics of good safety, high thermal decomposition temperature, good stability, strong antibacterial properties, and long-lasting antibacterial properties. Inorganic antibacterial agents are usually composed of antibacterial components and carriers, and metals or metal ions with antibacterial ability are immobilized on the carrier by physical adsorption or ion exchange. The metal ions with antibacterial activity include metal ions suc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/40A01N25/08A01P1/00
CPCA01N43/40A01N25/08Y02A50/30
Inventor 马晓飞张丽张志成
Owner 吉祥三宝高科纺织有限公司
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