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Anti-icing material with electrothermal photothermal conversion capability and wear-resistant and super-hydrophobic multiple properties as well as preparation method and application of anti-icing material

A photothermal conversion, super-hydrophobic technology, applied in chemical instruments and methods, other chemical processes, epoxy resin coatings, etc., can solve the problems of unsatisfactory anti-icing effect, reduced icing adhesion, and low temperature resistance of composite materials. , to achieve the effect of large-scale preparation, good electric heating and good wear resistance

Pending Publication Date: 2022-06-24
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Passive anti-icing technologies mainly include coating super-hydrophobic surfaces and super-slippery surfaces, etc. Among them, super-hydrophobic surfaces (such as silicon dioxide fluorinated grafted surfaces) can reduce the adhesion of icing, and in the case of static icing, it can greatly Delay the icing time; however, the superhydrophobic surface cannot achieve complete anti-icing under the condition of dynamic icing, and the durability of the superhydrophobic surface is still the main problem of its engineering application
Active anti-icing includes air heating, electric heating, photothermal and other technologies. Traditional air heating technology cannot meet the needs of composite materials with low temperature resistance and low carrying capacity of drones due to high temperature of hot air and high energy consumption. The heating technology can form a water film on the interface between the ice layer and the substrate through Joule heat, thereby greatly reducing the adhesion of ice and realizing anti-deicing on the surface; sunlight is available everywhere in nature, and if the surface has photothermal properties, photothermal can be used Input, improve the efficiency of anti-icing and reduce energy consumption; however, the electrothermal and photothermal surfaces do not have the function of reducing the adhesion of ice when no energy is supplied
The current active anti-icing technology and passive anti-icing technology are not ideal in anti-icing effect

Method used

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  • Anti-icing material with electrothermal photothermal conversion capability and wear-resistant and super-hydrophobic multiple properties as well as preparation method and application of anti-icing material
  • Anti-icing material with electrothermal photothermal conversion capability and wear-resistant and super-hydrophobic multiple properties as well as preparation method and application of anti-icing material
  • Anti-icing material with electrothermal photothermal conversion capability and wear-resistant and super-hydrophobic multiple properties as well as preparation method and application of anti-icing material

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preparation example Construction

[0038] The present invention provides the preparation method of the anti-icing material described in the above technical solution, comprising the following steps:

[0039] Prepare an insulating layer on the surface of the substrate layer;

[0040] Arrange parallel electrodes on the surface of the insulating layer;

[0041] Mixing the fluorinable grafted polymer matrix, nano-conductive particles, nano-photothermal particles, nano-hydrophobic particles, ammonium fluoride salt curing agent and organic solvent to obtain a paint mixture; spraying the paint mixture on a surface with parallel electrodes arranged After the surface of the insulating layer is cured, the anti-icing material is obtained.

[0042] The process of preparing the anti-icing material in the present invention is as follows: image 3 shown.

[0043] In the present invention, the method for preparing the insulating layer is preferably: dissolving the insulating material in an organic solvent to obtain an insula...

Embodiment 1

[0048] An anti-icing material with electrothermal photothermal conversion capability and wear-resistant super-hydrophobic multi-performance, the preparation method is as follows:

[0049] The metal substrate to be sprayed is textured, and after textured, the surface of the metal substrate is sprayed with a polyurethane insulating layer, and after the insulating layer is cured, the copper foil parallel electrodes are arranged, and the distance between the parallel electrodes is 10 cm;

[0050] Add nano conductive particle graphite powder, nano photothermal particle ferric oxide particle, nano hydrophobic particle PTFE particle and organic solvent xylene to epoxy resin, and sequentially perform mechanical stirring and ultrasonic dispersion to obtain electrothermal photothermal superhydrophobic coating dispersion; The mass of graphite powder, ferric oxide particles and PTFE particles are respectively 20%, 20% and 80% of the mass of epoxy resin, and the mass of organic solvent is 1...

Embodiment 2

[0057] A kind of anti-icing material with electrothermal photothermal conversion ability and wear-resistant super-hydrophobic multi-performance, the preparation method is as follows:

[0058] The epoxy resin composite material substrate to be sprayed is textured, and an epoxy resin insulating layer is sprayed on the surface of the composite material substrate after textured. After the insulating layer is cured, the copper foil parallel electrodes are arranged, and the parallel electrode interval is 8cm;

[0059] Add nano conductive particle graphene, nano photothermal particle nano gold powder, nano hydrophobic particle alumina nanoparticle and organic solvent xylene to epoxy resin, mix thoroughly, and perform mechanical stirring and ultrasonic dispersion in turn to obtain electrothermal photothermal superhydrophobic coating dispersion liquid; wherein the mass of graphene, nano-gold powder, and alumina nanoparticles are 5%, 15%, and 30% of the mass of epoxy resin, and the mass ...

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PUM

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Abstract

The invention provides an anti-icing material with electrothermal photothermal conversion capability and wear-resistant and super-hydrophobic multiple properties as well as a preparation method and application of the anti-icing material, and relates to the technical field of functional coating materials. The anti-icing material with the electrothermal photo-thermal conversion capability and the wear-resistant and super-hydrophobic multiple properties comprises an insulating layer and an electrothermal photo-thermal super-hydrophobic coating which are sequentially arranged on the surface of a base material layer from bottom to top; parallel electrodes are arranged between the insulating layer and the electrothermal photo-thermal super-hydrophobic coating; the electrothermal photo-thermal super-hydrophobic coating is obtained by curing raw materials including a fluorinated graft polymer matrix, nano conductive particles, nano photo-thermal particles, nano hydrophobic particles, a fluorine ammonium salt curing agent and an organic solvent. According to the anti-icing material provided by the invention, a single material simultaneously has multiple properties of electric heating, photo-thermal conversion capability, wear resistance and super hydrophobicity, multiple anti-icing and de-icing modes are combined, anti-icing and energy saving can be effectively realized, and the anti-icing material can be applied to the anti-icing and de-icing fields of fan blades, aircrafts and the like.

Description

technical field [0001] The invention relates to the technical field of functional coating materials, in particular to an anti-icing material with multiple properties of electrothermal-photothermal conversion and wear-resistant super-hydrophobicity, a preparation method and application thereof. Background technique [0002] Aircraft icing is the phenomenon in which a layer of ice builds up on the surface of an aircraft's components as it flies in the atmosphere. The icing on the leading edge of the aircraft wing, tail, and the leading edge of the engine inlet will seriously affect the safety of the aircraft and cause great damage to the flight performance; the icing of the wind turbine blades will change the wind turbine blades frequency, and then change its dynamic response behavior, which seriously affects the efficiency of the generator; the icing of the chassis of the high-speed rail on the alpine line will also seriously affect the safety of the high-speed rail. [0003...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D7/61C09D7/65C09K3/18
CPCC09D163/00C09D7/61C09D7/65C09D7/66C09K3/18C08K2003/2275C08K2003/0831C08K2003/2227C08K2003/2272C08K2003/0806C08K2201/001C08K2201/011C08L27/18C08K3/04C08K3/22C08K3/32C08K3/041C08K3/08C08K3/34
Inventor 陈华伟赵泽辉刘晓林朱彦曈王泽林澜陈济琛马峥占潇洋
Owner BEIHANG UNIV
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