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Multifunctional multi-stage nanocone array structure coating with multi-band stealth and super-hydrophobic characteristics and preparation method of multifunctional multi-stage nanocone array structure coating

A multi-functional coating and nano-array technology, applied in coatings, radiation-absorbing coatings, camouflage coatings, etc., can solve the problem of inability to effectively achieve multi-band stealth performance and hydrophobic performance, energy sources that do not meet the development trend of energy conservation and environmental protection, coating The layer does not have the self-deicing ability and other problems, and achieves good microwave absorption performance, accelerated deicing efficiency, and low manufacturing cost.

Pending Publication Date: 2022-08-05
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But once a thin layer of ice appears on the surface of the coating, the freezing speed increases rapidly and the coating basically does not have self-deicing ability
Even though some hydrophobic coatings can be deiced by electric heating, the large amount of energy consumed by pure electric heating is not in line with the current development trend of energy saving and environmental protection
On the other hand, because the realization of multi-band stealth has many restrictions on materials, such as meeting radar impedance matching, special absorber components, multi-layer structures, etc., these are likely to have a negative impact on the hydrophobic performance of the coating, so the current hydrophobic coating layer can not effectively realize the compatibility of multi-band stealth performance and hydrophobic performance

Method used

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  • Multifunctional multi-stage nanocone array structure coating with multi-band stealth and super-hydrophobic characteristics and preparation method of multifunctional multi-stage nanocone array structure coating
  • Multifunctional multi-stage nanocone array structure coating with multi-band stealth and super-hydrophobic characteristics and preparation method of multifunctional multi-stage nanocone array structure coating
  • Multifunctional multi-stage nanocone array structure coating with multi-band stealth and super-hydrophobic characteristics and preparation method of multifunctional multi-stage nanocone array structure coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A multi-functional multi-level nanocone array structure coating with multi-band stealth and super-hydrophobic properties and a preparation method thereof, comprising the following steps:

[0040] (1) Take the metal material as the base material, and cut the base material into a square with a side length of 5cm, and use an alcohol solution with a concentration of 50% to clean the surface of the base material, and dry it for later use;

[0041] (2) Spread the MXene aqueous solution with a monolayer diameter of less than 500 nm with a molar concentration of 5% on the surface of the substrate, use a mold to control the thickness of the aqueous solution, remove water by directional freeze-drying technology, and retain the MXene self-assembly to form a nanocone structure array. Height 30μm;

[0042] (3) The nano-carbon black and nano-silica powder are respectively subjected to surface functionalization treatment in a fluorosilane / isopropanol solution with a molar concentratio...

Embodiment 2

[0047] A multi-functional multi-level nanocone array structure coating with multi-band stealth and super-hydrophobic properties and a preparation method thereof, comprising the following steps:

[0048] (1) Take the polymer material as the base material, and cut the base material into a square with a side length of 5cm, and use an alcohol solution with a molar concentration of 50% to clean the surface of the base material, and dry it for later use;

[0049] (2) Spread the MXene aqueous solution with a monolayer diameter of less than 500 nm with a molar concentration of 10% on the surface of the substrate, control the thickness of the aqueous solution with a mold, remove water by directional freeze-drying technology, and retain the self-assembly of MXene to form a nanocone structure array. Height 30μm;

[0050] (3) The nano-carbon black and nano-silica powder are respectively subjected to surface functionalization treatment in a fluorosilane / isopropanol solution with a molar co...

Embodiment 3

[0055] A multi-functional multi-level nanocone array structure coating with multi-band stealth and super-hydrophobic properties and a preparation method thereof, comprising the following steps:

[0056] (1) Take two materials of metal and polymer as the base material respectively, and cut the base material into a square with a side length of 5cm, and use an alcohol solution with a molar concentration of 50% to clean the surface of the base material, and dry it for later use;

[0057] (2) Spread the MXene aqueous solution with a monolayer diameter of less than 500 nm with a molar concentration of 7% on the surface of the substrate, control the thickness of the aqueous solution with a mold, remove water by directional freeze-drying technology, and retain the MXene self-assembly to form a nanocone structure array. Height 30μm;

[0058] (3) The nano-carbon black and nano-silica powder are respectively subjected to surface functionalization treatment in a fluorosilane / isopropanol s...

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Abstract

The invention discloses a multifunctional multi-stage nanocone array structure coating with multi-band compatible stealth and super-hydrophobic characteristics and a preparation method of the multifunctional multi-stage nanocone array structure coating. A nanocone array formed by self-assembly of MXene is constructed by using a directional freeze drying technology, and nano carbon black and nano silicon dioxide are subjected to surface functionalization treatment by using a surfactant; the preparation method comprises the following steps: uniformly mixing treated powder in a solvent to realize self-assembly of a two-stage nanostructure, uniformly mixing the composite powder with a resin matrix by adopting a mechanical stirring process, and compounding prepared slurry with an MXene nanocone array by adopting a variable-temperature vacuum impregnation method to obtain the coating with the multi-stage nanocone structure. The preparation method is easy to operate, low in cost and high in preparation efficiency, and compatibility of multiple functions such as super-hydrophobicity, ice prevention and removal, multi-band stealth, ultraviolet radiation resistance, flexibility, impact resistance and wear resistance can be achieved at the same time. The problems that an existing hydrophobic coating is low in anti-icing and deicing efficiency, incompatible in multi-band stealth and durable in outdoor environment can be solved.

Description

technical field [0001] The invention belongs to the technical field of multi-functional coating preparation, in particular to a multi-functional multi-level nano-cone array structure coating with multi-band stealth and super-hydrophobic properties and a preparation method thereof. Background technique [0002] With the rapid development of science and technology, the application of hydrophobic coatings is becoming more and more extensive, and the requirements for hydrophobic coatings in various fields are also increasing. For example, large wind blades and high-speed train bogies need to be coated with a hydrophobic coating to obtain good anti-icing and deicing effects to ensure the normal operation of wind blades and trains. In addition, aircraft or weapons with high maneuverability not only need to have good multi-band stealth performance, including radar stealth, infrared stealth, visible light stealth, etc., but also work in the open air for a long time during the above-...

Claims

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Application Information

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IPC IPC(8): C09D201/00C09D5/30C09D5/24C09D5/32
CPCC09D201/00C09D5/30C09D5/24C09D5/32C08K2201/011C08K3/04C08K3/36C08K3/14Y02E10/72
Inventor 王紫玉段玉平杨萱黄灵玺靳黎忠
Owner DALIAN UNIV OF TECH
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