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Fluorescent antibacterial polypropylene composition as well as preparation method and application thereof

A technology of antibacterial polypropylene and composition, which is applied in the field of antibacterial polypropylene composition and its preparation, and can solve the problems of restricting wide application, high price of inorganic antibacterial agents, poor compatibility, etc.

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

Inorganic antibacterial agents mainly rely on silver, zinc, and copper elements to kill bacteria. The antibacterial effect is long-lasting and has high heat resistance, but the price of inorganic antibacterial agents is relatively high, and the compatibility with polypropylene is poor. It is often combined with zeolite, Mongolian Loading of porous materials such as desoil and silica gel will undoubtedly further increase the cost
Organic antibacterial agents mainly include quaternary ammonium salts, biguanides, thiazoles, organic halides, organometallic compounds, etc., with fast sterilization speed and strong bactericidal ability, but most organic antibacterial agents are easy to precipitate in polypropylene products and have poor heat resistance. , which seriously restricts its wide application

Method used

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  • Fluorescent antibacterial polypropylene composition as well as preparation method and application thereof
  • Fluorescent antibacterial polypropylene composition as well as preparation method and application thereof
  • Fluorescent antibacterial polypropylene composition as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] 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.

[0082] The fluorescent antibacterial polymer material was subjected to an antibacterial test according to the standard GB / T...

Embodiment 2

[0089] 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.

[0090] 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

[0092] 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%.

[0093] 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 antibacterial rate to Staphylococcus aur...

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Abstract

The invention relates to a fluorescent antibacterial polypropylene composition as well as a preparation method and application thereof, and belongs to the field of polymer materials. The fluorescent antibacterial polypropylene composition comprises the following blended components in parts by weight: 100 parts of polypropylene resin and 0.1-20 parts of a fluorescent antibacterial polymer material;wherein the fluorescent antibacterial polymer material is a maleic anhydride copolymer zinc salt derivative. The fluorescence emission of the fluorescent antibacterial polypropylene composition underthe excitation light of 300-550 nm is located at 350-600 nm, and the strongest emission peak is 380-550 nm. The antibacterial rates of the fluorescent antibacterial polypropylene composition to escherichia coli and staphylococcus aureus are both greater than 99%. The fluorescent antibacterial polypropylene composition is low in raw material cost, simple in preparation method and low in environmental pollution. The fluorescent antibacterial polypropylene composition 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 particularly, relates to an antibacterial polypropylene composition with fluorescent properties, a preparation method and application thereof. Background technique [0002] As one of the five general-purpose plastics, polypropylene has the advantages of wide source of raw materials, low production cost, easy processing, and easy recycling. It is widely used in automotive home appliances, architectural decoration, food packaging, daily necessities, toys and other fields. In recent years, with people's awareness of health and environmental protection, the safety requirements for many easy-to-touch polypropylene products are getting higher and higher, and polypropylene is very easy to breed bacteria in a humid environment. Therefore, a new type of polypropylene with antibacterial function has been developed. Acrylic material has very important practical significance. [0003] At ...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/14C08L31/04C08L35/00
CPCC08L23/12C08L23/14C08L35/00C08L31/04C08L25/16
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张江茹张红彬
Owner CHINA PETROLEUM & CHEM CORP
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