Preparation method of anti-bioadhesion super-hydrophobic suspension

A suspension and super-hydrophobic technology, which is applied to biocide-containing paints, anti-fouling/underwater coatings, coatings, etc., can solve the problems of unfavorable super-hydrophobic surface preparation and application, expensive equipment, complicated methods and processes, etc., to achieve Facilitate large-scale preparation and application, reduce adhesion, and simple process equipment

Inactive Publication Date: 2021-08-03
JIANGSU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there are many methods for constructing superhydrophobic surfaces at present, many of the methods for constructing superhydrophobic surfaces are complex in process and expensive in equipment, which is not conducive to the large-scale preparation and application of superhydrophobic surfaces.

Method used

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  • Preparation method of anti-bioadhesion super-hydrophobic suspension
  • Preparation method of anti-bioadhesion super-hydrophobic suspension
  • Preparation method of anti-bioadhesion super-hydrophobic suspension

Examples

Experimental program
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Effect test

Embodiment 1

[0035] A preparation method of anti-bioadhesion superhydrophobic suspension, comprising the steps of:

[0036] (1) Preparation of nano-zinc oxide mixed solution: disperse 2.0 g of zinc oxide with a particle diameter of 30 nanometers and 2.0 g of zinc oxide with a particle diameter of 90 nanometers in 50 mL of absolute ethanol, then add 5 mL of deionized water dropwise, and stir Evenly, disperse with ultrasonic vibration at 40°C for 30 minutes to form the nano-zinc oxide mixture;

[0037](2) Dispersion modification of the nano-zinc oxide mixed solution: add 200 μL of γ-aminopropyltriethoxysilane (dispersion modifier) ​​to the above-mentioned nano-zinc oxide mixed solution, and use a collector type constant temperature heating magnetic stirring Stir magnetically at a speed of 600rpm at 45°C for 1 hour to form a dispersed modified nano-zinc oxide mixture;

[0038] (3) Hydrophobic modification of the nano-zinc oxide mixed solution: Add 200 μL of perfluorooctyltrimethoxysilane (hy...

Embodiment 2

[0044] A preparation method of anti-bioadhesion superhydrophobic suspension, comprising the steps of:

[0045] (1) Preparation of nano-zinc oxide mixed solution: disperse 2.0 g of zinc oxide with a particle diameter of 30 nanometers and 1.0 g of zinc oxide with a particle diameter of 90 nanometers in 40 mL of absolute ethanol, then add 2 mL of deionized water dropwise, and stir Uniformly, disperse with ultrasonic vibration at 30°C for 25 minutes to form the nano-zinc oxide mixture;

[0046] (2) Dispersion modification of nano-zinc oxide mixed solution: add 100 μL of γ-aminopropyltriethoxysilane (dispersion modifier) ​​to the above-mentioned nano-zinc oxide mixed solution, and use a water-bath magnetic stirrer at 35 ° C Under magnetic stirring at a speed of 800rpm for 2 hours, form a dispersed modified nano-zinc oxide mixed solution;

[0047] (3) Hydrophobic modification of the nano-zinc oxide mixed solution: Add 400 μL of perfluorooctyltrimethoxysilane (hydrophobic modifier) ...

Embodiment 3

[0053] A preparation method of anti-bioadhesion superhydrophobic suspension, comprising the steps of:

[0054] (1) Preparation of nano-zinc oxide mixed solution: disperse 2.5g of zinc oxide with a particle diameter of 30 nanometers and 2.5g of zinc oxide with a particle diameter of 90 nanometers in 60mL of absolute ethanol, then add 10mL of deionized water dropwise, and stir Evenly, disperse with ultrasonic vibration at 50°C for 30 minutes to form the nano-zinc oxide mixture;

[0055] (2) Dispersion modification of the nano-zinc oxide mixed solution: add 400 μL of γ-aminopropyltriethoxysilane (dispersion modifier) ​​to the above-mentioned nano-zinc oxide mixed solution, and use a collector type constant temperature heating magnetic stirring The device was magnetically stirred at a speed of 500rpm at 45°C for 0.5 hours to form a dispersion-modified nano-zinc oxide mixed solution;

[0056] (3) Hydrophobic modification of the nano-zinc oxide mixed solution: add 100 μL of perfluo...

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Abstract

The invention discloses a preparation method of an anti-bioadhesion super-hydrophobic suspension, which comprises the following steps of: (1) dispersing a nano oxide into a solvent to form a nano oxide mixed solution; (2) adding a dispersion modifier into the nano oxide mixed solution and stirring to form a dispersed and modified nano oxide mixed solution; (3) adding a hydrophobic modifier into the dispersed and modified nano oxide mixed solution, and stirring to form a hydrophobically modified nano oxide mixed solution; (4) carrying out suction filtration and drying on the hydrophobically modified nano oxide mixed solution to obtain a modified nano oxide; and (5) dispersing the modified nano oxide into an organic solvent to obtain the anti-bioadhesion super-hydrophobic suspension. According to the method, the super-hydrophobic suspension of an oxide with low surface energy and a rough micro-nano structure is prepared through a simple process, the suspension can form a super-hydrophobic surface on the surface of a base material through a simple spraying process, process equipment is simple, and large-scale preparation and application of the super-hydrophobic surface are facilitated.

Description

technical field [0001] The invention relates to the technical field of preparation of superhydrophobic materials, in particular to a preparation method of an anti-bioadhesion superhydrophobic suspension. Background technique [0002] Microorganisms such as proteins, bacteria, and algae can easily breed and multiply on the surface of materials, seriously threatening people's lives and health. According to literature data, property losses caused by bioadhesion are as high as nearly 10 billion yuan every year in the world, and the number of people who die due to bacterial infection is as high as nearly one million every year in the world. The loss and harm caused by the growth and mass reproduction of microorganisms such as proteins, bacteria, and algae in industrial production, environmental protection, food safety, and hygiene cannot be underestimated. [0003] In recent years, superhydrophobic surfaces have attracted widespread attention because of their advantages such as ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00C09D5/14
CPCC09D1/00C09D5/14
Inventor 李长全王琛厉子昂毛非非毛天赐胡雅婷雷胜房新佐阿里达·阿米法兹力
Owner JIANGSU UNIV OF TECH
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