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Super-hydrophobic aluminum material/zinc material and preparation method and application thereof

A super-hydrophobic and water-drop technology, which is applied in the direction of pretreatment surface, coating, and surface coating liquid device, etc., can solve the problems of high cost and complicated preparation method, and achieve low cost, simple process, and improved hydrophobicity. Effect

Inactive Publication Date: 2014-08-20
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems encountered in the large-scale promotion of super-hydrophobic aluminum / zinc materials, such as defects such as complicated preparation methods and high costs, in order to realize the super-hydrophobic aluminum / zinc materials on the surface of pipes, ships and engineering equipment, etc. large scale application

Method used

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  • Super-hydrophobic aluminum material/zinc material and preparation method and application thereof
  • Super-hydrophobic aluminum material/zinc material and preparation method and application thereof
  • Super-hydrophobic aluminum material/zinc material and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) Cleaning treatment: Put the aluminum material in acetone and alcohol in turn and clean it for 10 minutes under the ultrasonic power of 80W to obtain the parts to be treated;

[0037] (2) Rough surface treatment: place the piece to be treated obtained in step (1) in water at 80°C for 2 hours;

[0038] (3) Modification treatment of low surface energy substances: place the piece to be treated obtained in step (2) and the heptadecafluorodecyl trimethyltryptophan silane n-hexane solution with a volume fraction of 2% in an airtight container without direct contact. container, and the airtight container was kept at 85°C for 3h.

[0039] The characteristics of the superhydrophobic aluminum material obtained by this method are as follows:

[0040] see figure 2 , as shown in the figure, the superhydrophobic aluminum material has a nano-sheet-like silk leaf-like surface structure, and the above-mentioned structure makes its surface have a higher roughness;

[0041] see F...

Embodiment 2

[0043] (1) Cleaning treatment: Put the zinc material in acetone and alcohol in turn and clean it under 80W ultrasonic waves for 10 minutes to obtain the parts to be treated;

[0044] (2) Rough surface treatment: place the piece to be treated obtained in step (1) in water at 90°C for 3 hours;

[0045] (3) Modification treatment of low surface energy substances: place the piece to be treated obtained in step (2) and the heptadecafluorodecyl trimethyltryptophan silane n-hexane solution with a volume fraction of 2% in an airtight container without direct contact. container, and the airtight container was kept at 85°C for 3h.

[0046] The characteristics of the superhydrophobic zinc material obtained by this method are as follows:

[0047] see image 3 , as shown in the figure, the superhydrophobic zinc material has a nanoscale surface structure of dense rough protrusions;

[0048] see Figure 5 , as shown in the figure, the contact angle of water droplets on the surface of super...

Embodiment 3

[0050] (1) Cleaning treatment: Put the aluminum material in acetone and alcohol in turn, and clean it under 60W ultrasonic waves for 20 minutes to obtain the parts to be treated;

[0051] (2) Rough surface treatment: place the piece to be treated obtained in step (1) in water at 90°C for 3 hours;

[0052] (3) Modification treatment of low surface energy substances: immerse the piece to be treated obtained in step (2) in an alcohol solution of 0.01 mol / L n-octadecylmercaptan for 4 hours.

[0053] The characteristics of the superhydrophobic aluminum material obtained by this method are as follows:

[0054] Has a surface structure of nano-flaky filaments;

[0055] The contact angle of water droplets on the surface of the superhydrophobic aluminum material is greater than 160°, and the rolling angle is less than 5°, which has a superhydrophobic state.

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Abstract

The invention provides a super-hydrophobic aluminum material / zinc material and a preparation method and application thereof. The method comprises the following steps of sequentially washing the aluminum material / zinc material in acetone and alcohol through an ultrasonic way to obtain a part to be processed; placing the part to be processed in the previous step in the water at the temperature of 50DEG C to 100DEG C for 0.5 to 4h; and further carrying surface energy substance decoration treatment for the part to be processed obtained in the previous step. The super-hydrophobic aluminum material prepared by the method has a nano flaky silk-shaped surface structure, the prepared super-hydrophobic zinc material has a nano compact coarse protruded surface structure, a contact angle of water drop on the surface of the aluminum material / zinc material is 140DEG to 170DEG, and a rolling angle is less than 10DEG C. The method is simple in process, good in repeatability and low in cost. The super-hydrophobic aluminum material / zinc material is applicable to the outer wall of a pipeline, the surface of ships or the outer wall of an electric wire, capable of effectively improving the hydrophobicity, self-cleaning property and anti-freezing property and prolonging the service life.

Description

technical field [0001] The invention relates to the field of material surface treatment, in particular to a superhydrophobic aluminum / zinc material and its preparation method and application. Background technique [0002] Droplets have non-wetting properties on super-hydrophobic surfaces, can maintain a spherical shape and roll off easily on materials with super-hydrophobic surfaces, and can clean out dust and other pollutants during the rolling process. Due to the self-cleaning properties of superhydrophobic surfaces, it has potential application value in the fields of anti-corrosion materials, material surface drag reduction, etc., so it has received extensive attention from researchers in the industry and scientific research circles. Through the research, it is found that to realize the superhydrophobic performance of the material surface, two conditions need to be met: 1. The surface has a high surface roughness; 2. The surface has a low surface free energy. [0003] Al...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05D5/08B05D3/00B05D3/10
Inventor 杨周许小亮叶逸凡吴以治公茂刚
Owner UNIV OF SCI & TECH OF CHINA
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