Photo-thermal hydrophobic anti-icing and anti-shedding coating material as well as preparation and application thereof

A coating material, anti-icing technology, applied in the coating and other directions, can solve the problems of poor anti-icing effect, short life, easy access to the surface of the wire, etc., to improve the anti-shedding performance, long duration, avoid dust, etc. sticking effect

Pending Publication Date: 2022-03-25
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the defects of the prior art, the present invention provides a photothermal hydrophobic anti-icing and anti-shedding coating material, its preparation and application, through the hydrophobic modification of acrylic resin and nanoparticles, in the anti-icing coating material The introduction of strong interactions such as supramolecular interaction, coordination interaction and hydrogen bond interaction improves the hydrophobicity and anti-shedding performance of the coating material, and solves the problem of thermal expansion and contraction of the existing anti-icing coating material due to high-voltage lines. Cracks appear on the surface of the coating, making it easy for water to enter the surface of the wire, and the technical problems of poor anti-icing effect, short life, etc.

Method used

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  • Photo-thermal hydrophobic anti-icing and anti-shedding coating material as well as preparation and application thereof
  • Photo-thermal hydrophobic anti-icing and anti-shedding coating material as well as preparation and application thereof
  • Photo-thermal hydrophobic anti-icing and anti-shedding coating material as well as preparation and application thereof

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preparation example Construction

[0047] The present invention also provides a kind of preparation method of described coating material, comprises the steps:

[0048] (1) Disperse the modified acrylic resin in a solvent, then add a dispersant and stir evenly to obtain a solution A;

[0049] (2) Disperse the modified hydrophobic nanoparticles and the modified hydrophobic light-to-heat conversion nanoparticles in the solvent, add a dispersant, disperse at a high speed for 20-60 minutes to mix evenly, and obtain the dispersion B;

[0050] (3) Mix the dispersion B with the solution A, add a defoamer and a leveling agent, and stir at a high speed to obtain a photothermal conversion hydrophobic anti-icing coating.

[0051] The wetting and dispersing agent, defoamer and leveling agent used in the photothermal hydrophobic anti-icing and anti-shedding coating material of the present invention are the dispersant, defoaming agent and leveling agent used in conventional anti-icing coating materials , For example, wetting...

Embodiment 1

[0056] In this embodiment, a polymerized monomer containing a pyridine group is taken as an example. Measure 50 g of acrylic resin, add 10 g of vinylpyridine, 0.5 g of initiator potassium persulfate, and 200 mL of water, heat to 90° C. and stir for 4 hours to obtain a modified acrylic resin.

[0057] Synthesis of ferric oxide@carbon black nanoparticles with core-shell structure: Weigh 650g of ferrocene, dissolve it in 6.5L of acetone, add it to a conical flask, stir at a stirring rate of 300rpm for 30min, slowly add 220ml of hydrogen peroxide, and then proceed vigorously Stir for 30 minutes, then move to the reactor to react at 210°C for 72h, then wash twice with acetone, dry at 65°C for use.

[0058] Modification of photothermal conversion nanoparticles: Dissolve 200g of ferric oxide@carbon black nanoparticles in 1L of ethanol, add 300mL of ammonia water, stir at 40°C for 30min, then slowly add 10g of polydimethylsiloxane triethoxy After the base silane was reacted overnight...

Embodiment 2

[0062] This embodiment takes dopamine grafted on the surface of acrylic acid as an example. Weigh 500g of acrylic acid and add it to 2L of water, add 15g of 1-ethyl-(3-dimethylaminopropyl)carbodiimide hydrochloride, 6.6g of triethylamine, 3.1g of N-hydroxysuccinimide at one time , after stirring for 1 h, add dopamine and stir overnight for later use.

[0063] Synthesis of photothermal conversion nanoparticles: Weigh 650g of ferrocene, dissolve it in 6.5L of acetone and add it to the Erlenmeyer flask, stir at 400rpm for 30min, slowly add 220ml of hydrogen peroxide, and then vigorously stir for 30min, then move to the reaction The kettle was reacted at 210°C for 72h, then washed twice with acetone, and dried at 65°C for use.

[0064] Modification of photothermal conversion nanoparticles: Dissolve 200g of ferric oxide@carbon black nanoparticles in 1L of ethanol, add 300mL of ammonia water, stir at 40°C for 30min, then slowly add 10g of polydimethylsiloxane triethoxy After the b...

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Abstract

The invention belongs to the technical field of functional materials, and particularly relates to a photo-thermal hydrophobic anti-icing and anti-shedding coating material as well as preparation and application thereof. The photothermal conversion hydrophobic anti-icing coating provided by the invention contains modified acrylate and modified nanoparticles, so that strong interactions such as supramolecular interaction, coordination interaction and hydrogen-bond interaction are introduced between the acrylate and the nanoparticles as well as between the acrylate and the nanoparticles and a metal substrate in a coating material; therefore, the components of the coating material and the surface of a metal wire or a metal plate have good bonding performance, and the anti-falling performance of the hydrophobic coating material is improved. Compared with a traditional anti-icing coating adopting a fluorine-containing polymer and a multi-layer structure, the coating material provided by the invention is proved to have better bonding and anti-falling performance compared with a traditional material, and when the electric wire expands with heat and contracts with cold, the surface of the resin is not easy to generate cracks, and the coating material is not easy to fall off from the surface of the electric wire.

Description

technical field [0001] The invention belongs to the technical field of functional materials, and more specifically relates to a photothermal hydrophobic anti-icing anti-shedding coating material, its preparation and application. Background technique [0002] With the construction and development of ultra-high-voltage transmission lines, high-voltage transmission lines are spread all over the country, and their use environment is complex. Especially in high-altitude areas, the problem of icing on high-voltage transmission lines is very harmful. The user's power demand may even cause dangerous accidents. Therefore, it is of great significance to study and solve the anti-icing problem of high-voltage lines for high-voltage power transmission. The existing anti-icing coatings are mainly prepared by introducing hydrophobic groups to modify resins or nano-fillers. (Jiang Xingliang et al., Application Prospect of Hydrophobic Coatings in Anti-icing of Transmission Lines, China Sou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D151/00C09D133/00C09D7/62
CPCC09D151/003C09D133/00C09D7/62C09D7/70C08K2201/011C08K2003/2275C08K9/08C08K3/22C08K3/04C08K7/26
Inventor 谭海英李雪付印彭家顺孙九霄石情文
Owner WUHAN TEXTILE UNIV
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