Four-component compound antibacterial powder

A compound antibacterial, four-component technology, applied in animal repellents, botanical equipment and methods, biocides, etc., can solve the problems of high cost of silver-based antibacterial agents, and achieve single action, uniform particle size, The effect of small particle size

Inactive Publication Date: 2011-07-27
NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 1. Solve the problem of high cost of silver-based antibacterial agents

Method used

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  • Four-component compound antibacterial powder
  • Four-component compound antibacterial powder

Examples

Experimental program
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Effect test

Embodiment 1

[0021] 8mL butyl titanate (Ti(OBu) 4 ) was added dropwise into 20mL of ethanol with stirring at 50°C and mixed evenly, then 2mL of glacial acetic acid was added to obtain solution A. Then 60 mL of ethanol and 2 mL of distilled water were added with nitric acid under stirring to adjust the pH value to 2-3 to obtain solution B. Add solution B dropwise to solution A at a rate of 50-60 drops per minute, stir and adjust the pH value to 2-3, and the reaction temperature is 40-60°C under ultrasonic conditions. After 20-30 minutes of reaction time, the light Yellow transparent titanium sol.

Embodiment 2

[0023] Add 0.3mol / L AgNO dropwise to the sol 3 , Zn(NO 3 ) 2 and Cu(NO 3 ) 2 solution, the amount of ions added is 5:100 (the molar ratio of metal ions to butyl titanate), and the molar ratio of silver, zinc, and copper ions is 1:2:1, and then ultrasonically dispersed for 10 to 20 minutes to obtain adsorption Composite titanium sol of silver, zinc and copper ions. Then the prepared composite titanium sol was dried in a drying oven at a drying temperature of 100°C to obtain a loose xerogel, which was ground and calcined in a crucible, and kept at 450°C for 30-60 minutes to obtain the required antibacterial powder.

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Abstract

The invention relates to a method for preparing a four-component compound antibacterial powder on which silver, zinc and copper ions are absorbed by a titanium sol carrier, by ultrasonically heating. The method comprises the following steps: uniformly mixing butyl titanate in ethanol under a certain condition and then adding glacial acetic acid, thereby acquiring a solution A; adding distilled water into ethanol, and then stirring while adding in nitric acid for adjusting PH value till the PH value reaches 2-3, thereby acquiring a solution B; dipping the solution B into the solution A at a certain speed; reacting for 20-30 minutes under an ultrasonic condition and then acquiring a titanium solution; drop-wise adding AgNO3, Zn(NO3)2 and Cu(NO3)2 solutions into the titanium solution, wherein the ion addition is 5:100 (the mole ratio of metal ion to butyl titanate) and the mole ratio of silver ion to zinc ion to copper ion is 1:2:1; then performing ultrasonic dispersion for 10-20 minutes, thereby acquiring the compound titanium sol absorbing silver, zinc and copper ions; and lastly drying, grinding and burning the compound titanium sol, thereby acquiring the required antibacterial powder. A study shows that the antibacterial agent has excellent property and the problems that the silver system antibacterial agent is high in cost, the color of antibacterial material is easily changed and the function is single are solved.

Description

Technical field: [0001] The invention relates to a powder preparation technology, in particular to a method for preparing a four-component composite antibacterial powder in which silver, zinc and copper ions are adsorbed on a titanium sol carrier by ultrasonic heating. Background technique: [0002] With the improvement of people's living standards, there are higher requirements for the antibacterial properties of daily necessities, medical supplies, environmental protection products, food packaging, water treatment devices, etc., and materials with bactericidal and antibacterial effects have attracted more and more people's attention and attention . [0003] In recent years, inorganic antibacterial agents have been widely researched, developed and applied due to their safety, durability, antibacterial properties, broad spectrum, heat resistance and resistance to drug resistance. According to different antibacterial mechanisms, the current research on inorganic antibacteria...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N59/20A01N59/16A01N25/12A01P1/00
Inventor 王黔平吴卫华范金岭黄转红郭治崔海滨
Owner NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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