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Fluorescent antibacterial polymer material as well as preparation method and application thereof

A polymer material and fluorescence technology, applied in the field of fluorescent antibacterial polymer materials and their preparation

Active Publication Date: 2020-10-20
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] So far, there are few studies and reports on organic antibacterial agents with fluorescent properties. Organic antibacterial agents and their production processes will have extremely important market value and economic significance

Method used

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  • Fluorescent antibacterial polymer material as well as preparation method and application thereof
  • Fluorescent antibacterial polymer material as well as preparation method and application thereof
  • Fluorescent antibacterial polymer material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] Dissolve 5g of sodium hydroxide in 100g of water; weigh 5g of MVL and put it into the aqueous solution of sodium hydroxide; after the MVL is completely dissolved, add 0.5g of zinc chloride solid, stir for 10 minutes, centrifuge the suspension and dry the precipitate to obtain Fluorescence antibacterial polymer material, its three-dimensional fluorescence spectrum is as follows figure 1 As shown, when the excitation range is 360-400 nm, the strongest emission range is 500-550 nm. The elemental energy spectrum analysis data of the fluorescent polymer material are as follows: figure 2 As shown (2.15eV is the gold element sprayed on the surface of the sample), there is zinc element in the product, and the measured weight fraction of zinc element is 20%, and no sodium element exists, indicating that the sodium element is completely replaced by zinc. The fluorescent antibacterial polymer material was subjected to an antibacterial test according to the standard GB / T 21510-20...

Embodiment 2

[0082] Take 0.5g of lithium hydroxide and dissolve it in 100g of water; weigh 5g of MASC and put it into the lithium hydroxide aqueous solution; after the MASC is completely dissolved, add the prepared zinc nitrate solution (50g of zinc nitrate dissolved in 50g of water), stir for 10 minutes and centrifuge The fluorescent antibacterial polymer material can be obtained by separating the suspension and drying the precipitate. Its three-dimensional fluorescence spectrum is as follows: image 3 As shown, when the excitation range is 360-425 nm, the strongest emission range is 420-490 nm. The elemental energy spectrum analysis shows that the weight fraction of zinc in the fluorescent antibacterial polymer material is 60%. The fluorescent antibacterial polymer material was subjected to an antibacterial test according to the standard GB / T 21510-2008.

[0083] Antibacterial results: before boiling, the antibacterial rate against Escherichia coli>99%, and against Staphylococcus aureus...

Embodiment 3

[0085] Take 50g of potassium hydroxide and dissolve it in 100g of water; weigh 5g of MC4L and put it into an aqueous solution of potassium hydroxide; after MC4L is completely dissolved, add zinc lactate solution (5g of zinc lactate is dissolved in 50g of water), stir for 10 minutes and then centrifuge and dry the precipitate. The fluorescent antibacterial polymer material can be obtained, and its three-dimensional fluorescence spectrum is as follows Figure 4 As shown, when the excitation range is 350-380 nm, the strongest emission range is 400-450 nm. The element energy spectrum analysis measures the zinc element weight fraction of the fluorescent antibacterial polymer material to be 47%. The fluorescent antibacterial polymer material was subjected to an antibacterial test according to the standard GB / T 21510-2008.

[0086] Antibacterial results: before boiling, the antibacterial rate against Escherichia coli>99%, and against Staphylococcus aureus>99%; after boiling, the ant...

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Abstract

The invention relates to a fluorescent antibacterial polymer material, and a preparation method and application thereof, and belongs to the field of polymer materials. The fluorescent antibacterial polymer material comprises a maleic anhydride copolymer zinc salt derivative, the excitation wavelength is 330-430 nm, and the strongest fluorescence emission of the fluorescent antibacterial polymer material is 400-550 nm. The maleic anhydride copolymer zinc salt derivative is a maleic anhydride copolymer with zinc ions combined on carboxylic acid groups. The antibacterial rates of the fluorescentantibacterial polymer material to escherichia coli and staphylococcus aureus are both greater than 99%. The fluorescent antibacterial polymer material is prepared by adding a maleic anhydride copolymer into an aqueous solution of alkali metal hydroxide for full reaction and then adding a zinc salt and / or an aqueous solution of the zinc salt for full reaction. The raw materials of the fluorescent antibacterial polymer and articles used in the process are cheap, the preparation method is simple, the environmental pollution is low, and the fluorescent antibacterial polymer material is excellent in fluorescence property, high in safety, lasting in antibacterial effect and suitable for industrial application.

Description

technical field [0001] The invention relates to the technical field of polymer materials, and more specifically, relates to a fluorescent antibacterial polymer material and its preparation method and application. Background technique [0002] With the continuous enhancement of people's awareness of environmental protection and health, the killing of microbial pathogens has attracted more and more attention. Antibacterial agents are a class of chemical substances that can inhibit or kill microbial pathogens. Researchers can mix them with plastics, coatings and other carriers to prepare composite materials with antibacterial effects. Therefore, they have efficient, durable and economical antibacterial properties. Agents are the focus of research in the field of antibacterial. [0003] Antibacterial agents can be divided into three categories: natural, inorganic and organic antibacterial agents. Natural antibacterial agents are mainly extracted from natural plants, and limite...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F222/06C08F222/08C08F8/44C08L35/00C08L35/06A01N37/02A01N37/04A01N37/36C09K11/06A01P3/00A01P1/00
CPCC08F8/44C08L35/00C08L35/06A01N37/02A01N37/04A01N37/36C09K11/06C09K2211/14C08F222/06C08F222/08Y02A50/30
Inventor 乔金樑胡晨曦张晓红茹越宋志海郭照琰蔡传伦赖金梅戚桂村蒋海斌高建明李秉海王湘韩朋张红彬
Owner CHINA PETROLEUM & CHEM CORP
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