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Fluorescent antibacterial polycarbonate composite material as well as preparation method and application thereof

A polycarbonate, composite material technology, applied in the direction of luminescent materials, chemical instruments and methods, etc., can solve the problems of low decomposition temperature and easy precipitation

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

However, traditional inorganic zinc antibacterial agents have compatibility problems with polycarbonate and other polymers, and surface modification is required; organic zinc antibacterial agents have low decomposition temperature and are easy to precipitate. If they can be prepared with high heat resistance and antibacterial effect Long-lasting organozinc antibacterial agents will undoubtedly have important application significance

Method used

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  • Fluorescent antibacterial polycarbonate composite material as well as preparation method and application thereof
  • Fluorescent antibacterial polycarbonate composite material as well as preparation method and application thereof
  • Fluorescent antibacterial polycarbonate composite material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0087] 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.

[0088] The fluorescent antibacterial polymer material was subjected to an antibacterial test according to the standard GB / T...

Embodiment 2

[0095] 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 weight fraction of the zinc element in the fluorescent antibacterial macromolecule material is 60% as measured by element energy spectrum analysis.

[0096] The fluorescent antibacterial polymer material was subjected to an antibacterial test according to the standard GB / T 21510-2008, and the antibacterial results: the antibacterial rate to Escherichia coli before boiling > 99%, and the antiba...

Embodiment 3

[0098] 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 energy spectrum analysis of elements shows that the weight fraction of the zinc element in the fluorescent antibacterial polymer material is 47%.

[0099] The fluorescent antibacterial polymer material was subjected to an antibacterial test according to the standard GB / T 21510-2008. The antibacterial results: the antibacterial rate to Escherichia coli before boiling > 99%, and the antibacterial rate to Staphylococcus aureus ...

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Abstract

The invention relates to a fluorescent antibacterial polypropylene material, and a preparation method and application thereof, and belongs to the field of polymer materials. The fluorescent antibacterial polycarbonate composite material comprises blended polycarbonate resin and a fluorescent antibacterial polymer material. The fluorescent antibacterial polymer material accounts for 0.1-20 parts byweight of 100 parts by weight of the polycarbonate resin. The fluorescent antibacterial polymer material is a maleic anhydride copolymer zinc salt derivative. The excitation light range of the fluorescent antibacterial polycarbonate composite material is 300-600 nm, and the emission light range is 300-700 nm. The antibacterial rates of the fluorescent antibacterial polycarbonate composite material to escherichia coli and staphylococcus aureus are both greater than 99%. The fluorescent antibacterial polycarbonate composite material is low in price of related raw materials, simple in preparation method and low in environmental pollution. The fluorescent antibacterial polycarbonate composite 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 an antibacterial polycarbonate composite material with fluorescent properties and its preparation method and application. Background technique [0002] With the continuous development of society, the continuous improvement of social economy and people's living standards, health and safety issues have been paid more and more attention by people. There are many harmful bacteria, fungi, viruses and other microorganisms in nature, which have caused serious harm to human health, and some of them can even endanger human life and health. Therefore, in order to meet the growing needs of the people on issues such as environmental sanitation, researchers from various countries are developing highly effective antibacterial materials. [0003] Most antibacterial materials are added to the matrix by adding antibacterial agents. Traditional antibacterial agents can ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L35/06C09K11/06
CPCC08L69/00C09K11/06C09K2211/14C08L35/06
Inventor 茹越乔金樑张晓红胡晨曦郭照琰赖金梅宋志海蒋海斌李秉海戚桂村王湘韩朋张江茹蔡传伦张红彬姜超
Owner CHINA PETROLEUM & CHEM CORP
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