CN117511330A - Preparation method and application of anti-icing coating of insulator - Google Patents

Preparation method and application of anti-icing coating of insulator Download PDF

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Publication number
CN117511330A
CN117511330A CN202310895781.4A CN202310895781A CN117511330A CN 117511330 A CN117511330 A CN 117511330A CN 202310895781 A CN202310895781 A CN 202310895781A CN 117511330 A CN117511330 A CN 117511330A
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China
Prior art keywords
coating
insulator
icing coating
icing
spraying
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CN202310895781.4A
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Chinese (zh)
Inventor
樊磊
李波
李钢
饶秀平
夏明勇
刘健
毛进
蒋高峰
谢春
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Guizhou Power Grid Co Ltd
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Guizhou Power Grid Co Ltd
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Priority to CN202310895781.4A priority Critical patent/CN117511330A/en
Publication of CN117511330A publication Critical patent/CN117511330A/en
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D163/00Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00Processes for applying liquids or other fluent materials
    • B05D1/02Processes for applying liquids or other fluent materials performed by spraying
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/60Additives non-macromolecular
    • C09D7/61Additives non-macromolecular inorganic
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20Oxides; Hydroxides
    • C08K3/22Oxides; Hydroxides of metals
    • C08K2003/2227Oxides; Hydroxides of metals of aluminium
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00Specific properties of additives
    • C08K2201/002Physical properties
    • C08K2201/005Additives being defined by their particle size in general
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00Specific properties of additives
    • C08K2201/011Nanostructured additives

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Paints Or Removers (AREA)

Abstract

The invention discloses a preparation method and application of an anti-icing coating of an insulator, comprising the following steps: mixing the main materials, adding resin and adding a resin curing agent. The prepared coating has excellent anti-icing effect under the working condition of the insulator, namely, the coating still has good anti-icing effect under the condition of low temperature and high humidity, and is simple to manufacture.

Description

Preparation method and application of anti-icing coating of insulator
Technical Field
The invention belongs to the technical field of paint preparation, and particularly relates to a preparation method and application of an anti-icing coating of an insulator.
Background
In recent years, researchers at home and abroad have conducted a great deal of research about the preparation of anti-icing coatings/paints, the characterization of anti-icing properties, the anti-icing mechanism and the like. The anti-icing coating/paint is mainly divided into a photo-thermal type material, an electric thermal type material and a hydrophobic type material.
The icing usually occurs in overcast and rainy days with rain and snow, and enough sunlight cannot be absorbed in a period in which the icing is easy to grow at night, so that the anti-icing effect of the photo-thermal material is time-efficient, and the anti-icing effect cannot meet the all-weather long-time anti-icing requirement.
The electric heating type anti-icing coating/paint is mainly represented by semiconductor (room temperature vulcanization) silicon rubber, conductive or semiconductor filler (such as zinc oxide, carbon black, carbon fiber and the like) is added into a base material, the volume resistivity and the coating mode of the material are controlled to form the semiconductor coating, and leakage current of milliamp level generated in operation is utilized, so that the surface temperature of an insulator is increased to achieve the anti-icing purpose, and a good anti-icing effect is shown. The study in this area is most remarkable mainly in the research results of the group Gu Zhidong subject at the university of Qinghai. The Jack teacher subject group is characterized in that nano carbon black is added into room temperature vulcanized silicone rubber, and the surface temperature is maintained above 0 ℃ by utilizing leakage current heating, so that the anti-icing performance of rime is remarkably improved. However, electrothermal ice protection coatings suffer from 2 significant drawbacks, namely additional energy consumption and accelerated aging problems. When the icing temperature is low, a larger leakage current is often required to meet the anti-icing requirement, and the addition amount of the conductive particles must be increased. Because of the large difference between the thermal expansion coefficients of the conductive particles and the room temperature vulcanized silicone rubber polymer, the coating/paint is easy to age and crack under the influence of long-term electric-thermal synergy and residual stress, and the service life of the anti-icing coating is seriously influenced. There is a great deal of work currently done and related patents directed to achieving the above anti-icing objectives:
chinese patent publication No. cn113913087a discloses a method for preparing a normal temperature cured wear-resistant corrosion-resistant super-hydrophobic coating, which uses epoxy resin as a coating film forming material, uses aerogel and fluorosilane modified multi-wall carbon nanotubes as micro-roughness structures, and the static water contact angle of the prepared super-hydrophobic coating is 169. Chinese patent publication No. cn 110804395a discloses an anti-icing coating, an anti-icing material and a preparation method thereof, in which tetraethoxysilane or acrylic resin is used as a film forming material, long fluorocarbon chain silane is used as a hydrophobic modifier, silicon carbide and hydrophobic gas phase sio2 are used as coarse structures, and the static water contact angle of the prepared super-hydrophobic coating is 157. The resin and the particles are directly blended to prepare the super-hydrophobic coating, and the mechanical strength between the micro-nano particles is completely dependent on the bonding effect of the film forming materials. When the film forming material is too small, only loose stacking structures can be formed among particles due to the difference of surface tension and wettability, so that the particles are extremely easy to damage by mechanical external force; when the film forming material is too much, the leveling property of the film forming material can fill gaps among particles, and the micro coarse structure is destroyed, so that the coating loses superhydrophobicity.
The anti-icing coating used in the current technical field lacks an anti-icing effect in a low temperature and high humidity environment.
Disclosure of Invention
This section is intended to outline some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description summary and in the title of the application, to avoid obscuring the purpose of this section, the description summary and the title of the invention, which should not be used to limit the scope of the invention.
The present invention has been made in view of the above and/or problems occurring in the prior art.
Therefore, the invention aims to overcome the defects in the prior art and provide a preparation method of an anti-icing coating of an insulator.
In order to solve the technical problems, the invention provides the following technical scheme: a preparation method of an anti-icing coating of an insulator comprises the following steps:
mixing main materials: mixing ethyl acetate and FAST-17, and adding Al 2 O 3 Stirring and mixing the nanoparticle powder uniformly;
adding resin: adding epoxy resin and fluorosilicone resin, and uniformly mixing;
adding a resin curing agent: and adding an epoxy resin curing agent, and uniformly stirring to obtain the anti-icing coating of the insulator.
As a preferable scheme of the preparation method of the insulator anti-icing coating, the preparation method comprises the following steps: in the mixed main material, al is calculated by weight 2 O 3 The weight of the nanoparticle powder is 5-50% of the total weight of the system.
As a preferable scheme of the preparation method of the insulator anti-icing coating, the preparation method comprises the following steps: in the mixed main material, al is calculated by weight 2 O 3 The weight of the nanoparticle powder was 40% of the total weight of the system.
As a preferable scheme of the preparation method of the insulator anti-icing coating, the preparation method comprises the following steps: the average particle size of the alumina was 50nm.
As a preferable scheme of the preparation method of the insulator anti-icing coating, the preparation method comprises the following steps: ethyl acetate by weight: FAST-17=25:0.8.
As a preferable scheme of the preparation method of the insulator anti-icing coating, the preparation method comprises the following steps: adding the resin and the resin curing agent, and uniformly mixing by using magnetic stirring at the rotating speed of 300 revolutions per minute.
As a preferable scheme of the preparation method of the insulator anti-icing coating, the preparation method comprises the following steps: in the main material mixing, the mixing is uniformly carried out by stirring and ultrasonic dispersion, the ultrasonic dispersion is carried out at the frequency of 20khz, the power of 500 watts and the operating temperature of 25 ℃.
Another object of the invention is to provide the use of an anti-icing coating for insulators.
In order to solve the technical problems, the invention provides the following technical scheme: an application of an anti-icing coating for an insulator, comprising: the insulator anti-icing coating is placed into a spraying device and sprayed on the glass material to form the insulator anti-icing coating.
As a preferred embodiment of the application of the anti-icing coating of an insulator according to the invention, wherein: the insulator anti-icing coating is placed into a spraying device and sprayed on the glass material to form the anti-icing coating based on silicon dioxide.
As a preferred embodiment of the application of the anti-icing coating of an insulator according to the invention, wherein: the diameter of the nozzle is 1.5, 2 and 3mm, the spraying pressure is controlled to be 0.1 to 0.5MPa, the spraying distance is kept to be 5 to 30cm, and the spraying time is 5 to 60s.
As a preferred embodiment of the application of the anti-icing coating of an insulator according to the invention, wherein: the spraying pressure is 0.3MPa, the spraying distance is kept at 20cm, and the spraying time is 30s.
The invention has the beneficial effects that:
the prepared coating has excellent anti-icing effect under the working condition of the insulator, namely, the coating still has good anti-icing effect under the condition of low temperature and high humidity, and is simple to manufacture.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:
FIG. 1 shows the embodiment 2 of the present invention according to the difference of Al 2 O 3 Microstructure micrograph of the coating of nanoparticle mass fraction;
in the figure, FIG. a is Al 2 O 3 5% of a fiber structure diagram; FIG. b is Al 2 O 3 10% of a fiber structure diagram; FIG. c is Al 2 O 3 20% of a fiber structure diagram; FIG. d is Al 2 O 3 40% of a fiber structure diagram; FIG. e is Al 2 O 3 50% fibrous structureA figure;
FIG. 2 shows different mass fractions of Al in example 2 of the present invention 2 O 3 The contact angle and the rolling angle of water drops forming a coating after the nano particles are sprayed on the glass;
FIG. 3 is a graph showing the freezing time and ice adhesion strength of a water droplet placed on glass and coating in example 4 of the present invention;
FIG. 4 is a comparison of frosting time for water droplets placed on glass and coating in example 4;
FIG. 5 is a comparison of the freezing process of example 4 with water droplets placed on the glass and coating;
FIG. 6 is a schematic diagram showing the Wenzel state and Cassie state of water droplets on a superhydrophobic surface illustrated in example 5.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
The average particle size of the alumina used in the examples of the present invention was 50nm;
example 1
The invention is used for explaining the preparation method of the anti-icing coating:
1. 25 parts of ethyl acetate and 0.8 part of FAS-17 are placed in a beaker;
2. adding Al with different mass 2 O 3 After the nanoparticle powder (the using amount is 40% of the total mass of the reaction system), carrying out magnetic stirring (the magnetic stirring speed is 300 r/min) and ultrasonic dispersing (the frequency is 20khz, the power is 500 watts and the operating temperature is 25 ℃) for 10min respectively;
3. adding 4 parts of epoxy resin and 3 parts of fluorosilicone resin, and magnetically stirring for 25min and 300 r/min;
4. 1.2g of an epoxy resin curing agent (modified isophorone diamine) was added, and the mixture was magnetically stirred at 300rpm for 10 minutes to obtain a well-mixed homogeneous solution.
5. The uniformly mixed solution was poured into a spray bottle and the spray gun was sprayed against a vertically placed slide. (the nozzle diameter was 2mm, the spray pressure was controlled at 0.3MPa, the spray distance was kept at 15cm, and the spray time was 15s. For uniform spraying, the spray gun was slowly moved from top to bottom.
6. The sprayed coating was cured at room temperature and then placed in a dry box overnight to make an anti-icing coating.
Example 2
The invention is used for explaining the influence of the amount of alumina on the quality of the finished product:
the only difference between this example and example 1 is the use of a different Al 2 O 3 The mass of the nano particle powder is 5%, 10%, 20%, 30%, 40% and 50% of the total mass of the reaction system respectively.
The coatings produced with different mass ratios were observed using an electron microscope and the resulting image was shown in fig. 1.
From FIG. 1, it can be seen that as Al follows 2 O 3 The surface of the coating is coarser and coarser, and when the increment reaches 40%, a microporous structure appears, so that the requirement of the super-hydrophobic structure is met.
The contact angle and the rolling angle of the obtained finished product are measured, the obtained data are shown in figure 2, and the measuring modes of the contact angle and the rolling angle are as follows: measured using SINDIN SDC-100 instrument.
As can be taken from fig. 2, with nano Al 2 O 3 The contact angle of the coating is increased more and more, and the mass fraction of Al is 40% and 50% 2 O 3 Coatings have similar apparent contact angles of 161.0 ° and 162.0 °, respectively; the slip angle represents the rolling ability of the surface water droplets, which is typically used to evaluate the self-cleaning ability of the material, the smaller the slip angle the stronger the rolling ability of the water droplets. 40%, 50% of Al 2 O 3 The coating rolling angle is 1.3 degrees and 3.3 degrees. 40%, 50% of Al 2 O 3 The coating achieves a super-hydrophobic structure.
Example 3
The invention is used for explaining the influence of the spraying parameters on the quality of the finished product:
this example is essentially the same as example 1, the only difference being that different spray parameters are used in the spraying process: the diameters of the nozzles are respectively 1.5, 2 and 3mm, the spraying pressure is controlled to be 0.1 to 0.5MPa, and the spraying distance is kept to be 5 to 30cm;
and comparing the performances of the anti-icing coatings prepared by different spraying parameters to obtain the optimal anti-icing performance of the product, wherein the diameter of the nozzle is 2mm, the spraying pressure is controlled to be 0.3MPa, and the spraying distance is kept to be 15 cm.
1. 25 parts of ethyl acetate and 0.8 part of FAS-17 are placed in a beaker;
2. adding Al with different mass 2 O 3 After the nanoparticle powder (the using amount is 40% of the total mass of the reaction system), carrying out magnetic stirring (the magnetic stirring speed is 400 r/min) and ultrasonic dispersion for 10min respectively;
3. adding 4 parts of epoxy resin and 3 parts of fluorosilicone resin, and magnetically stirring for 25min;
4. 1.2g of epoxy resin curing agent is added, and the mixture is magnetically stirred for 10min to obtain a fully mixed uniform solution.
5. The uniformly mixed solution was poured into a spray bottle and the spray gun was sprayed against a vertically placed slide. (nozzle diameters are 1.5, 2 and 3mm, spraying pressure is controlled to be 0.1 to 0.5MPa, spraying distance is kept to be 5 to 30cm, and a spray gun is slowly moved from top to bottom for uniform spraying.
6. The sprayed coating was cured at room temperature (4 hours) and then placed in a dry box (70 ℃) overnight (over 12 hours).
Example 4
The invention is used for explaining the influence of the coating on the waterproof performance:
the coating of example 1 was applied to glass and tested for water resistance against a blank of plain glass, glass sheet (7101) was purchased from Jiangsu Feizhou glass plastics Co., ltd at room temperature, and the freezing times of the resulting test and blank were as shown in FIG. 3;
the time points of frosting and freezing during the experiment are recorded, and the obtained data are shown in fig. 4 and 5.
From FIG. 3, it can be seen that Al obtained in example 1 2 O 3 The freezing time of the coating relative to the substrate glass is greatly prolonged, and the ice adhesion strength is greatly reduced to 61.1kPa.
As can be seen from fig. 4 and 5, the common glass is completely frosted within 600 seconds, the freezing time is 259.3 seconds at the shortest, while the coating prepared in example 1 is completely frosted within 1200 seconds, and the freezing time is 2488 seconds at the shortest, that is, the coating prepared in example 1 has a remarkable hysteresis effect on frosting and freezing, and can remarkably reduce damage to the coated surface at low temperature.
Example 5
This example is used to compare with existing waterproof materials in the market:
the anti-icing coating existing on the market is selected, the contact angle of the anti-icing coating produced by the Chinese Jia He is 160.5 degrees, and the rolling angle is 1.3 degrees. The measurement methods of the contact angle and the roll angle refer to those of example 2.
Measurement of coating application Properties over time after completion of the measurement, specific Experimental Standard reference GB9154-88, the coating of Crassularia huashi, the coating prepared in example 1 and Al in example 2 2 O 3 Coating experiments are carried out on the coating which is prepared by the mass accounting for 60 percent of the weight of the system, timing is carried out in the middle of coating, the coating of the Chinese jia grass is in a falling state after 500 hours of working time, and Al is generated at 1300 hours 2 O 3 The coating prepared in example 1 was intact in the desorption of the coating prepared by 60% by weight of the system, and after 2000 hours of operation, the coating was scraped off by a doctor blade, M190 exceededExperimental group glasses with hydrophobic coating and appearance of Al at 1300h 2 O 3 The coating glass of the coating prepared by the mass accounting for 60 percent of the weight of the system has a certain amount of scratches, the scratches are obviously more, the glass surface is damaged in the experimental process due to the desorption of the coating, and the glass surface of the coating experimental group in the embodiment 1 is smooth and intact.
The coating produced in example 1 has better adhesion properties and longer working times than the coating of the chinese grain. And because of the Al used 2 O 3 And the polymer is matched, so that the matching effect of the interpenetrating polymer network and the metal ion coordination bond is realized, the self-stabilization and self-repair effects are good, the good adhesion to glass and the protection to glass are realized, the good adhesion effect can be kept due to long-time use of the invention, the anti-icing effect can be kept, and the self-repair adhesive has remarkable advantages along with the time.
The super-hydrophobic surface anti-icing principle formed in the invention comprises the following conditions: (1) The contact time of collision water drops on the superhydrophobic surface is shortened, so that the heat transfer and icing probability of the superhydrophobic surface are reduced; (2) When water drops adhere to the surface of the water drops, the static water drop freezing time is delayed or the freezing temperature of the water drops is reduced; (3) When the ice coating is formed, the ice coating adhesive strength is reduced so that the ice coating is easy to remove by external force. The resulting different form changes are shown in fig. 6.
As can be taken from fig. 6, when the water droplet includes Wenzei state and Cassie state on the superhydrophobic surface, the improvement of the hydrophobic property can be caused when the change of state occurs.
It should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered in the scope of the claims of the present invention.

Claims (10)

1. A preparation method of an anti-icing coating of an insulator is characterized by comprising the following steps: the method comprises the following steps:
mixing main materials: mixing ethyl acetate and FAST-17, and adding Al 2 O 3 Stirring and mixing the nanoparticle powder uniformly;
adding resin: adding epoxy resin and fluorosilicone resin, and uniformly mixing;
adding a resin curing agent: and adding an epoxy resin curing agent, and uniformly stirring to obtain the anti-icing coating of the insulator.
2. The method for preparing the anti-icing coating of the insulator according to claim 1, wherein the method comprises the following steps: in the mixed main material, al is calculated by weight 2 O 3 The weight of the nanoparticle powder is 5-50% of the total weight of the system.
3. The method for preparing the anti-icing coating of the insulator according to claim 1 or 2, characterized in that: in the mixed main material, al is calculated by weight 2 O 3 The weight of the nanoparticle powder was 40% of the total weight of the system.
4. The method for preparing the anti-icing coating of the insulator according to claim 1 or 2, characterized in that: the average particle diameter of the alumina was 50nm.
5. The method for preparing the anti-icing coating of the insulator according to claim 1, wherein the method comprises the following steps: ethyl acetate by weight: FAST-17=25:0.8.
6. The method for preparing the anti-icing coating of the insulator according to claim 1, wherein the method comprises the following steps: the resin and the resin curing agent are added, and the mixing is uniformly carried out by using magnetic stirring, wherein the stirring speed is 300 revolutions per minute.
7. The method for preparing the anti-icing coating of the insulator according to claim 1, wherein the method comprises the following steps: in the main material mixture, the uniform mixing is stirring and ultrasonic dispersion, the ultrasonic dispersion is carried out at the frequency of 20khz, the power of 500 watts and the operating temperature of 25 ℃.
8. An application of an anti-icing coating of an insulator is characterized in that: the insulator anti-icing coating is placed into a spraying device and sprayed on the glass material to form the insulator anti-icing coating. .
9. Use of an anti-icing coating for insulators according to claim 8, characterized in that: the diameter of the nozzle is 1.5, 2 and 3mm, the spraying pressure is controlled to be 0.1 to 0.5MPa, the spraying distance is kept to be 5 to 30cm, and the spraying time is 5 to 60s.
10. Use of an anti-icing coating for insulators according to claim 8 or 9, characterized in that: the spraying is carried out on the glass material, the diameter of the nozzle is 2mm, the spraying pressure is 0.3MPa, the spraying distance is kept at 20cm, and the spraying time is 30s.
CN202310895781.4A 2023-07-20 2023-07-20 Preparation method and application of anti-icing coating of insulator Pending CN117511330A (en)

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CN202310895781.4A CN117511330A (en) 2023-07-20 2023-07-20 Preparation method and application of anti-icing coating of insulator

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Application Number Priority Date Filing Date Title
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