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Hydrophobic carbon nanotube-based super-hydrophobic coating with anti-icing function and preparation method of hydrophobic carbon nanotube-based super-hydrophobic coating

A super-hydrophobic coating, carbon nanotube technology, applied in coatings, chemical instruments and methods, other chemical processes, etc., can solve problems such as high energy consumption, failure of airframe sensors, and increased flight resistance of aircraft, and achieve good resistance. Abrasion and solvent resistance, good hydrophobicity and anti-icing properties, the effect of simple preparation process

Pending Publication Date: 2022-07-26
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Icing on the surface of the aircraft will destroy the aerodynamic shape of the aircraft, increase the flight resistance of the aircraft, and increase the energy consumption of the aircraft during flight
At the same time, icing will also cause the fuselage sensors to fail, reduce the maneuverability of the aircraft, and easily cause accidents
The commonly used deicing methods now have high energy consumption and need to add additional equipment to achieve the effect of deicing, which also increases the complexity of equipment design

Method used

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  • Hydrophobic carbon nanotube-based super-hydrophobic coating with anti-icing function and preparation method of hydrophobic carbon nanotube-based super-hydrophobic coating
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  • Hydrophobic carbon nanotube-based super-hydrophobic coating with anti-icing function and preparation method of hydrophobic carbon nanotube-based super-hydrophobic coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (1) Preparation of hydrophobic carbon nanotubes:

[0033] a. Add 1 part of hydroxylated carbon nanotubes to 100 parts of alcohol and 20 parts of ammonia water mixed solution under magnetic stirring, and continue stirring for 0.5h. During this process, the magnetic stirring speed is 400r / min;

[0034] b. Add 1 part of fluorosilicone oil and 0.5 part of catalyst dropwise to the dispersion obtained in a, and continue to stir for 1 h to hydrophobically modify the carbon nanotubes. During this process, the magnetic stirring speed is 400 r / min;

[0035] c. Centrifuging, washing and drying the mixed solution obtained in b to obtain hydrophobic carbon nanotubes.

[0036] (2) Mix 55 parts of solvent, 0.5 part of dispersant, 1 part of hydrophobic carbon nanotubes and 5 parts of fluorosilicone resin into a beaker, use zirconia as grinding beads, and sand at room temperature for 10 minutes;

[0037] (3) filter out the sand-milled slurry to obtain a filtrate;

[0038] (4) The filt...

Embodiment 2

[0040] (1) Preparation of hydrophobic carbon nanotubes:

[0041] a. Add 2 parts of hydroxylated carbon nanotubes to the mixed solution of 200 parts of alcohol and 10 parts of ammonia water under magnetic stirring, and continue stirring for 1 hour. During this process, the magnetic stirring speed is 600 r / min;

[0042] b. Add 2.5 parts of fluorosilicone oil and 1 part of catalyst dropwise to the dispersion obtained in a, and continue stirring for 3h to hydrophobically modify the carbon nanotubes. During this process, the magnetic stirring speed is 600r / min;

[0043] c. Centrifuging, washing and drying the mixed solution obtained in b to obtain hydrophobic carbon nanotubes.

[0044] (2) Mix 65 parts of solvent, 1 part of dispersant, 2 parts of hydrophobic carbon nanotubes and 10 parts of fluorosilicone resin into a beaker, use zirconia as grinding beads, and sand at room temperature for 20 minutes;

[0045] (3) filter out the sand-milled slurry to obtain a filtrate;

[0046] (...

Embodiment 3

[0048] (1) Preparation of hydrophobic carbon nanotubes:

[0049] a. Add 5 parts of hydroxylated carbon nanotubes to the mixed solution of 300 parts of alcohol and 20 parts of ammonia water under magnetic stirring, and continue to stir for 1.5 hours. During this process, the magnetic stirring speed is 800 r / min;

[0050] b. Drop 5 parts of fluorosilicone oil and 1.5 parts of catalyst into the dispersion liquid obtained in a, and continue to stir for 4 hours to hydrophobically modify the carbon nanotubes. During this process, the magnetic stirring speed is 800 r / min;

[0051] c. Centrifuging, washing and drying the mixed solution obtained in b to obtain hydrophobic carbon nanotubes.

[0052] (2) Mix 75 parts of solvent, 5 parts of dispersant, 5 parts of hydrophobic carbon nanotubes and 20 parts of fluorosilicone resin in a beaker, use zirconia as grinding beads, and sand at room temperature for 30 minutes;

[0053] (3) filter out the sand-milled slurry to obtain a filtrate;

...

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Abstract

The invention provides a hydrophobic carbon nanotube-based super-hydrophobic coating with an anti-icing function. The hydrophobic carbon nanotube-based super-hydrophobic coating is prepared from the following components in parts by mass: 55-75 parts of a solvent, 0.5-5 parts of a dispersing agent, 1-5 parts of hydrophobic carbon nanotubes and 10-20 parts of fluorosilicone resin, according to the preparation method, a proper amount of fluorosilicone oil is added into hydroxylated carbon nanotube dispersion liquid, and a hydrophobic silicone oil molecular chain segment is grafted to the surface of the carbon nanotube by utilizing the combination of hydroxyl groups on the surface of the fluorosilicone oil and hydroxyl groups on the surface of the hydroxylated carbon nanotube, so that the hydrophobic carbon nanotube is prepared; fluorosilicone resin with low surface energy is used as a binder to enable the carbon nanotubes to form an irregular micro-nano structure, so that air can be captured, the actual contact area of water and the coating is reduced, the heat transfer efficiency between the water and a matrix is reduced, and the coating has good hydrophobicity and anti-icing property; the coating disclosed by the invention has good wear resistance and solvent resistance, the preparation process is simple, the cost is low, the icing time is delayed, and an ice layer is easier to remove.

Description

technical field [0001] The invention relates to a super-hydrophobic coating and a preparation method thereof, in particular to a super-hydrophobic coating with anti-icing function based on hydrophobic carbon nanotubes which can be applied to the field of anti-icing / de-icing and a preparation method thereof. Background technique [0002] The icing on the surface of the aircraft will cause the aerodynamic shape of the aircraft to be destroyed, increase the flight resistance of the aircraft, and increase the energy consumption of the aircraft during flight. At the same time, icing will also cause the failure of the airframe sensors, reduce the operability of the aircraft, and easily lead to accidents. The commonly used deicing methods have high energy consumption, and need to add additional equipment to achieve the effect of deicing, which also increases the complexity of equipment design. The superhydrophobic coating has high contact angle and rolling angle, which leads to th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/08C09D7/62C09K3/18
CPCC09D183/08C09D7/62C09K3/18C08K9/02C08K9/08C08K9/06C08K3/041
Inventor 邵亚薇刘洋赵振波王艳秋刘斌
Owner HARBIN ENG UNIV