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Preparation method of antibacterial agent

An antibacterial agent and a certain amount of technology are applied in the field of preparation of antibacterial agents, which can solve problems such as unsatisfactory antibacterial performance, and achieve the effect of great promotion value and improving antibacterial performance.

Inactive Publication Date: 2019-02-01
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a kind of preparation method of antibacterial agent, to solve the problem that antibacterial property can not meet some demands in some macromolecular composite materials

Method used

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  • Preparation method of antibacterial agent
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  • Preparation method of antibacterial agent

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preparation example Construction

[0019] The application provides a preparation method of an antibacterial agent, comprising the following steps:

[0020] (1) Weigh a certain amount of hexapraseodymium undecoxide, deionized water, nitric acid, and hydrogen peroxide, add them to the reaction vessel, and react at 30-50°C for 6-8h to form Pr(NO3) 3 ·6H 2 O; the mass ratio of hexapraseodymium undecyl oxide, deionized water, nitric acid, and hydrogen peroxide is (30-40): (200-240): (60-80): (50-70).

[0021] (2) Take a certain amount of sodium o-hydroxyphenylacetate, ethanol, deionized water, 5-chloro-7-hydroxyquinoline, Pr(NO3) 3 ·6H 2 O, react at 60-80°C for 8-12h to obtain solution A; sodium o-hydroxyphenylacetate, ethanol, deionized water, 5-chloro-7-hydroxyquinoline, Pr(NO3) 3 ·6H 2 The mass ratio of O is (20-30):(120-160):(180-220):(30-40):(60-80).

[0022] (3) Adjust the pH value of solution A to neutral with nitric acid or sodium hydroxide, wash, filter with suction, dry, grind, and pass through a 500-...

Embodiment 1

[0024] (1) Weigh 300g of hexapraseodymium undecoxide, 2.0kg of deionized water, 600g of nitric acid, and 500g of hydrogen peroxide, and add them to the reaction vessel, and react at 30°C for 6h to form Pr(NO3) 3 ·6H 2 O.

[0025] (2) Weigh 200g sodium o-hydroxyphenylacetate, 1.2kg ethanol, 1.8kg deionized water, 300g5-chloro-7-hydroxyquinoline, 600gPr(NO3) 3 ·6H 2 O, react at 60°C for 8h to obtain solution A.

[0026] (3) Adjust the pH value of solution A to neutral with nitric acid or sodium hydroxide, wash, filter with suction, dry, grind, and pass through a 500-mesh sieve to obtain antibacterial agent P1.

Embodiment 2

[0036] (1) Weigh 400g of hexapraseodymium undecyloxide, 2.4kg of deionized water, 800g of nitric acid, and 700g of hydrogen peroxide, and add them to the reaction vessel, and react at 50°C for 8h to form Pr(NO3) 3 ·6H 2 O.

[0037] (2) Weigh 300g sodium o-hydroxyphenylacetate, 1.6kg ethanol, 2.2kg deionized water, 400g5-chloro-7-hydroxyquinoline, 800gPr(NO3) 3 ·6H 2 O, reacted at 80°C for 12h to obtain solution A.

[0038] (3) Adjust the pH value of solution A to neutral with nitric acid or sodium hydroxide, wash, filter with suction, dry, grind, and pass through a 500-mesh sieve to obtain antibacterial agent P2.

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Abstract

The present invention relates to a preparation method for an antibacterial agent. The method comprises the following steps: weighing a certain amount of praseodymium oxide, deionized water, nitric acid, and hydrogen peroxide, and adding the materials to a reaction vessel to form Pr(NO3)3.6H2O; weighing a certain amount of sodium 2-hydroxyphenylacetate, ethanol, deionized water, 5-chloro-7-hydroxyquinoline, and Pr(NO3)3.6H2O, performing a reaction on the materials to obtain a solution A; adjusting a pH value of the solution A with nitric acid or sodium hydroxide, and performing steps of washing, pumping filtration, drying, grinding, and sieving to obtain the antibacterial agent. The Pr ion has the function of antagonizing intracellular calcium ions, and calcium ions are ions that maintain the normal physiological activity of cells, which interfere with the normal life activities of bacterial cells and cause bacterial death; the addition of the special antibacterial agent enhances the antibacterial properties of polymer composites, and the antibacterial agent has great promotion value.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, in particular to a preparation method of an antibacterial agent. Background technique [0002] Antibacterial materials refer to a class of functional materials that can inhibit the growth, reproduction or death of bacteria, viruses, fungi and other microorganisms within a certain period of time. Antibacterial agents are the most critical part of the antibacterial effect of antibacterial materials. This technical solution innovatively synthesizes a new type of antibacterial agent, which can well improve the antibacterial performance of polyolefin and other composite materials. This antibacterial agent has not been reported so far, which has very important practical significance for expanding the types and applications of antibacterial agents. Contents of the invention [0003] The purpose of the present invention is to provide a preparation method of an antibacterial agent to solve th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L67/02C08L23/06C08L25/06C08L77/02C08K3/28C08K5/13
CPCC08K3/28C08K5/13C08L23/12C08L67/02C08L23/06C08L77/02C08L25/06
Inventor 刘凯孙启林孔俊
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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