Application of non-release type antimicrobial adhesion coating in antibacterial pipe

An anti-microbial and adhesion technology, applied in coatings, biocide-containing paints, anti-fouling/underwater coatings, etc., can solve problems such as waste of resources, high reactivity, and complicated operation steps, so as to ensure a smooth structure and prevent The effect of microorganism adhesion and simple preparation method

Active Publication Date: 2022-01-04
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At present, the research on the antimicrobial properties of borneol only stays in the modification of the substrate by using borneol alone, and has a significant antibacterial effect. However, the photoinitiated polymerization of the borneol acrylate monomer cannot realize the modification of the surface of the material. Antibacterial performance (see comparative example)
[0008] In addition, the aforementioned patent modification method is limited to groups with high reactivity, and the operation steps are relatively complicated, which will lead to unnecessary waste of resources in the production process

Method used

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  • Application of non-release type antimicrobial adhesion coating in antibacterial pipe
  • Application of non-release type antimicrobial adhesion coating in antibacterial pipe
  • Application of non-release type antimicrobial adhesion coating in antibacterial pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0041] As mentioned above, in the two methods of preparing polymer antibacterial materials, adding antibacterial ingredients during the preparation process is difficult, and the utilization rate of antibacterial ingredients is not high; after the polymer is processed and formed, antibacterial ingredients are loaded on the surface. There are problems such as the release of antibacterial ingredients, poor persistence of effect, and even the release of antibacterial ingredients that affect the safety of use. In addition, it is difficult to combine resistance to fungi and bacteria in existing antibacterial materials.

[0042] At present, the research on the antimicrobial properties of borneol only stays in the modification of the substrate by using borneol alone. Although it has a significant antibacterial effect, the photoinitiated polymerization of the borneol acrylate monomer cannot achieve the surface of the grafted material. antibacterial properties. However, the existing gr...

Embodiment 1

[0099] Grafted PBA-PPEGDA coating preparation of polyacrylonitrile membrane:

[0100] (1) Solution preparation

[0101] Preparation of photoinitiator solution: Weigh 4.2300g of isopropylthioxanthone and 0.6066g of benzophenone in a brown sample bottle, then add 10mL of acetone, vortex, ultrasonic 20min to fully dissolve it, and finally dissolve it Nitrogen blowing apparatus (ND400, Hangzhou Ruicheng Instrument Co., Ltd.) was used to bubble for 20 minutes to fully remove oxygen to obtain a photoinitiator solution.

[0102] Preparation of monomer solution: After mixing 2.08mL BA and 2.00mL PEGDA (relative molecular weight 200) (the molar ratio of BAP to PEGDA is 1:1), draw 0.8mL mixed monomer and 0.2mL acetone into a brown sample Ultrasonic treatment was carried out in the bottle, and then deoxygenated by nitrogen gas for 20 minutes to obtain a monomer solution.

[0103] (2) Preparation of photoinitiator-modified polyacrylonitrile film

[0104] Soak the polyacrylonitrile memb...

Embodiment 2

[0129] Embodiment 2: the grafting PBA-PPEGDA coating preparation of polyethylene film:

[0130] (1) Solution preparation

[0131] Preparation of photoinitiator solution: Weigh 2.5400g of isopropylthioxanthone and 1.8220g of benzophenone in a brown sample bottle, then add 10mL of acetone, vortex, ultrasonic 20min to fully dissolve it, and finally dissolve it Bubble for 20 minutes with a nitrogen blower to fully remove oxygen to obtain a photoinitiator solution.

[0132] Preparation of monomer solution: After mixing 2.08mLBA and 4.00mL PEGDA (relative molecular weight 400) (the molar ratio of BAP to PEGDA is 1:1), draw 0.65mL of mixed monomer and 0.35mL of acetone into a brown sample bottle Ultrasonic treatment was performed, followed by deoxygenation with nitrogen gas for 20 min to obtain a monomer solution.

[0133] (2) Preparation of photoinitiator-modified polyethylene film

[0134] Soak the polyethylene film in acetone for 10 h, and ultrasonically remove impurities for 3...

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Abstract

The invention relates to application of a non-release type antimicrobial adhesion coating in an antibacterial pipe. The main component of the coating is composed of a copolymer of two monomers, namely bornyl acrylate (BA) and polyethylene glycol diacrylate (PEGDA), and the amphiphilic three-dimensional chemical antibacterial polymer coating is constructed; and the coating has good anti-microbial adhesion. A preparation method of the coating mainly comprises the following steps: 1, fixing a photoinitiator on the surface of a high polymer material; and 2, carrying out surface free radical-initiated polymerization on the monomers to realize grafting and copolymerization. The preparation method of the coating is simple, and the obtained grafted coating is safe and stable; respective advantages of the bornyl polyacrylate and the polyethylene glycol diacrylate can be fully exerted, and microbial adhesion can be synergistically prevented; and the coating can be applied to surface modification of most high polymer materials, and the structure flatness of the grafted coating can be ensured.

Description

technical field [0001] The invention belongs to the field of biological materials and relates to the application of a non-releasing antimicrobial adhesion coating in antibacterial pipes. Background technique [0002] Polymer substrates are widely used in people's life and industrial production, such as agriculture, food, medical treatment, chemical industry, etc. However, these polymers usually do not have the function of anti-microbial adhesion, which provides a medium for the adhesion and spread of microorganisms, seriously affects the efficiency of production, and threatens human health. These microbial contamination problems have attracted more and more attention from researchers in recent years. Therefore, it is of great significance to modify the surface of polymers to endow them with anti-microbial adhesion properties without destroying the internal structure of polymers. [0003] The current preparation methods of polymer antibacterial materials are mainly divided i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/04C08L33/20C08L23/06C08L67/02C08L23/12C09D133/08C09D135/02C09D5/14
CPCC08J7/0427C08J2333/20C08J2433/08C08J2435/02C08J2323/06C08J2367/02C08J2323/12Y02A20/20
Inventor 王兴
Owner BEIJING UNIV OF CHEM TECH
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