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Wave-absorbing and heat-generating coating for ice melting of wind power blade and preparation method thereof

A technology for wind power blades and ice melting, applied in coatings, wind power generation, radiation-absorbing coatings, etc., can solve the problems of destroying the streamlines of the blade surface, not being able to actively de-ice, and high cost of de-icing, and achieve strong microwave absorption and attached Strong force and good thermal stability

Active Publication Date: 2022-02-25
XIAN THERMAL POWER RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art, and provide a wave-absorbing and heat-generating coating for melting ice of wind power blades and a preparation method thereof, so as to solve the problem of low efficiency in the prior art, inability to actively deicing, and deicing. Higher cost and disrupts blade surface streamlines

Method used

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  • Wave-absorbing and heat-generating coating for ice melting of wind power blade and preparation method thereof
  • Wave-absorbing and heat-generating coating for ice melting of wind power blade and preparation method thereof

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preparation example Construction

[0028] The preparation method of above-mentioned surface coating is:

[0029] The preparation method of the coating bottom layer is to mix and stir methylphenyl silicone resin, epoxy modified silicone resin, titanium dioxide and bentonite, and use colloid to grind to a particle size of ≤ 40 μm to obtain component A; mix component A and After the B-component curing agent is mixed and stirred, the bottom coating can be obtained, which can be used. When using, spray the bottom coating onto the pre-treated substrate, repair and polish it after curing.

[0030] The preparation method of the coating surface layer is to mix and heat 60-80 parts of diphenol-based epoxy resin and 16-22 parts of polyisocyanate-based polyurethane prepolymer to prepare polyurethane modified epoxy resin; Epoxy resin, 3 to 4 parts of diluent, 0.5 to 1 part of filler, 3 to 8 parts of ferrocerium alloy nano powder and 8 to 12 parts of curing agent are mixed evenly, then add polyurethane modified epoxy resin, ...

Embodiment 1

[0046] Step 1, in parts by mass, after mixing and stirring 30 parts of methylphenyl silicone resin, 30 parts of epoxy-modified silicone, 12 parts of titanium dioxide and 13 parts of bentonite, use colloidal grinding to grind to a particle size ≤ 40 μm , to obtain component A; mix component A and 650# polyamide resin to obtain the bottom coating, spray the bottom coating on the substrate, repair and polish it after curing, and obtain the bottom layer; the thickness of the bottom layer is 300 μm.

[0047] Step 2, in parts by mass, 72 parts of E-51 and 20 parts of polyisocyanate-based polyurethane prepolymers are mixed and heated to obtain polyurethane modified epoxy resin; 13 parts of E-51, 3 parts of propylene oxide butyl Ether, 0.8 parts of glass powder, 6 parts of cerium-iron alloy nano powder and 10 parts of curing agent are mixed evenly and added to polyurethane modified epoxy resin, then 4 parts of silicon carbide particles and 0.3 part of dispersant are added, and after stir...

Embodiment 2

[0054] Step 1, in parts by mass, after mixing and stirring 25 parts of methylphenyl silicone resin, 28 parts of epoxy-modified silicone, 11 parts of titanium dioxide and 8 parts of bentonite, use colloidal grinding to grind to a particle size ≤ 40 μm , to obtain component A; mix component A and 650# polyamide resin to obtain the bottom coating, spray the bottom coating on the substrate, repair and polish it after curing, and obtain the bottom layer; the thickness of the bottom layer is 200 μm.

[0055] Step 2, in parts by mass, 94 parts of E44 and 19 parts of polyisocyanate-based polyurethane prepolymers are mixed and heated to obtain polyurethane modified epoxy resin; 12 parts of E-51, 4 parts of propylene oxide butyl ether, Mix 0.9 parts of glass powder, 3 parts of cerium-iron alloy nanopowder and 8 parts of curing agent evenly and add them to the polyurethane modified epoxy resin, then add 5 parts of silicon carbide particles and 0.2 parts of dispersant, and stir evenly to o...

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Abstract

The invention provides a wave-absorbing and heat-generating coating for ice melting of a wind power blade and a preparation method thereof. The surface of the wind power blade is coated with the material, and an ice layer on the surface of the wind power blade is removed in cooperation with microwaves. The coating provided by the invention adopts environment-friendly chemical components, can be sprayed on the wind power blade in a large area, has the advantages of self-cleaning, damp heat resistance, freezing resistance and the like, and does not corrode the wind power blade. In cooperation with microwave deicing, microwave energy can be better absorbed and converted into heat energy, ice at an interface is rapidly melted, and the ice surface is loosened and disengaged. The coating has the advantages of strong microwave absorption, wide frequency band, high wear resistance, strong adhesive force, good thermal stability and the like.

Description

technical field [0001] The invention belongs to the technical field of wind power generation, and in particular relates to a wave-absorbing and heat-generating coating for melting ice of wind power blades and a preparation method thereof. Background technique [0002] Wind energy is a renewable energy with huge content and very clean and safe. Wind turbines are currently the most important equipment for wind energy conversion. Wind energy, as a renewable and clean energy, is getting more and more attention today. Wind power has a bright prospect in China, so there is also a large market demand for corresponding wind power blade coatings. [0003] The working environment of wind turbines is outdoors where wind resources are relatively abundant, and in some wind farms with high ambient humidity, large precipitation, and low temperature, when the temperature drops below zero degrees Celsius, ice may form on the wind turbine blades , the ice adheres to the blades and changes t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/04C09D183/06C09D7/61C09D175/04C09D163/02C09D5/32F03D80/40
CPCC09D183/04C09D183/06C09D175/04C09D7/61C09D5/32F03D80/40C08K2003/2241C08L2201/08C08L83/06C08K3/22C08K3/346C08L63/00C08K3/40C08K3/08C08K3/34Y02E10/72
Inventor 杨嵩郭中旭程广文王晓乾姚明宇杨成龙蔡铭
Owner XIAN THERMAL POWER RES INST CO LTD
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