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Nano rare earth m-hydroxy benzoic acid 8-hydroxyquinoline antibacterial agent and method for preparing same

A technology of hydroxybenzoic acid and hydroxybenzoquinoline, applied in the field of antibacterial agents, can solve the problems of affecting the appearance of white or light-colored products, use restrictions, and high prices, achieve high chemical stability and thermal stability, and reduce prices and costs. low effect

Inactive Publication Date: 2005-12-07
SHANGHAI NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the main products at home and abroad include various silver series antibacterial agents, such as: silica gel and silver compound antibacterial agents, etc. Although their antibacterial effect is good, their price is high and their use is limited.
And because the chemical properties of silver ions are relatively active, they are more sensitive to light and heat, especially the elemental silver that is easily reduced to black by ultraviolet radiation. This shortcoming of easy discoloration affects the appearance of white or light-colored products.

Method used

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Examples

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Effect test

Embodiment 1

[0008] The preparation method of the present invention is to get 0.01mol sodium m-hydroxybenzoate and mix it with 0.02mol 8-hydroxyquinoline in a magnetic stirrer to obtain a mixed ligand solution; at a temperature of 40°C, drop this mixed ligand solution into to 0.01mol RECl 3 6H 2 In O, adjust the pH value=more than 6, react for 2 hours, and age for 0.5 hour; filter with sand core funnel, then wash with double distilled water to remove chloride ion (Cl - ) was dried under vacuum for 4 hours to obtain RE(MBA)(hq) 2 Rare earth m-hydroxybenzoic acid 8-hydroxyquinoline; finely ground, measured, bottled and placed in a desiccator.

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PUM

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Abstract

The invention relates to a process for preparing nano rare earth m-hydroxy benzoic acid 8-hydroxyquinoline antibacterial agent which comprises, mixing 0.01 mol of sodium m-hydroxybenzoate with 0.02 mol of 8-hydroxyquinoline with a magnetic stirrer to obtain mixed ligand solution, instilling the mixed ligand solution into 0.01 mol REC136 H2O at 40-70 deg. C, adjusting pH to above 6, reacting 2-6 hrs, ageing 0.5-4 hrs, filtering by suction, removing chloride ions (Cl-) through secondary distilled water washing, vacuum drying 4-10 hours.

Description

technical field [0001] The invention belongs to an antibacterial agent with antibacterial function, which can be applied to the fields of packaging materials, architectural coatings and the like. Background technique [0002] At present, the main products at home and abroad include various silver series antibacterial agents, such as: silica gel and silver compound antibacterial agents, etc. Although their antibacterial effect is good, their prices are relatively high and their use is limited. And because the chemical properties of silver ions are relatively active, they are more sensitive to light and heat, especially simple silver that is easily reduced to black by ultraviolet radiation. This shortcoming of easy discoloration affects the appearance of white or light-colored products. Moreover, it has almost no antibacterial effect on mold and fungus. The preparation method is to treat with a mixed solution of alkali and metaaluminate, form a thin layer of A-line zeolite on ...

Claims

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Application Information

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IPC IPC(8): C07D215/24
Inventor 何其庄闵慧
Owner SHANGHAI NORMAL UNIVERSITY
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