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Preparation method of anti-icing super-hydrophobic coating with self-repairing performance

A super-hydrophobic coating and self-repairing technology, applied in the field of coatings, can solve problems such as lack of deicing effect, reduced hydrophobicity, and icing of transmission lines, and achieve the effect of excellent mechanical stability and easy processing

Inactive Publication Date: 2021-01-08
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The losses caused by the severe snow disaster in the south in 2008 are obvious to all. Many transmission lines were covered with ice so severely that the power towers were overwhelmed and then collapsed, resulting in a large-scale paralysis of the power supply system, which affected many provinces and caused huge losses. It can be seen that the electric The icing of equipment has brought great inconvenience to the power system and even national production and life
Superhydrophobic materials are not only used in the field of deicing, superhydrophobic surfaces have important potential applications in other fields, such as self-cleaning, oil / water separation, drag reduction, but generally have poor mechanical and wear resistance. If the wear resistance in snowy weather is not enough, the hydrophobicity will be greatly reduced, and the ideal deicing effect will not be achieved.

Method used

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  • Preparation method of anti-icing super-hydrophobic coating with self-repairing performance
  • Preparation method of anti-icing super-hydrophobic coating with self-repairing performance
  • Preparation method of anti-icing super-hydrophobic coating with self-repairing performance

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Effect test

Embodiment 1

[0026]A preparation method of anti-icing superhydrophobic coating with self-healing performance is in progress according to the following steps:

[0027](1) Synthesis of self-repairing prepolymer A

[0028]First, pour PPG6000 (39g, 65mmol) into a 500ml four-necked flask equipped with a mechanical stirrer and a vacuum inlet. Stir under vacuum for half an hour at 120°C to remove internal moisture; after cooling the temperature to 70°C, add IPDI( 4.545g, 204.5mmol), the mixture was stirred at 70°C for 10 minutes; then DBTDL (2mg) was added and the mixture was further stirred at 70°C for 45 minutes to obtain a self-healing prepolymer A;

[0029](2) Synthesis of self-repairing prepolymer B

[0030]First, pour PPG330N (25g, 125mmol) into a 500ml four-neck flask equipped with a mechanical stirrer and a vacuum inlet. Stir under vacuum for half an hour at 120°C to remove internal moisture; after cooling the temperature to 60°C, add IPDI( 5.55g, 250mmol), the mixture was stirred at 60°C for 10 minutes; t...

Embodiment 2

[0039]A preparation scheme for a self-healing anti-icing superhydrophobic coating is in progress according to the following steps:

[0040](1) Synthesis of self-repairing prepolymer A

[0041]First, pour PPG6000 (39g, 65mmol) into a 500ml four-necked flask equipped with a mechanical stirrer and a vacuum inlet. Stir under vacuum for half an hour at 120°C to remove internal moisture; after cooling the temperature to 70°C, add IPDI( 4.545g, 204.5mmol), the mixture was stirred at 70°C for 10 minutes; then DBTDL (2mg) was added and the mixture was further stirred at 70°C for 45 minutes to obtain a self-healing prepolymer A;

[0042](2) Synthesis of self-repairing prepolymer B

[0043]First, pour PPG330N (25g, 125mmol) into a 500ml four-neck flask equipped with a mechanical stirrer and a vacuum inlet. Stir under vacuum for half an hour at 120°C to remove internal moisture; after cooling the temperature to 60°C, add IPDI( 5.55g, 250mmol), the mixture was stirred at 60°C for 10 minutes; then DBTDL (1.5...

Embodiment 3

[0051]A preparation scheme for a self-healing anti-icing superhydrophobic coating is in progress according to the following steps:

[0052](1) Synthesis of self-repairing prepolymer A

[0053]First, pour PPG6000 (39g, 65mmol) into a 500ml four-necked flask equipped with a mechanical stirrer and a vacuum inlet. Stir under vacuum for half an hour at 120°C to remove internal moisture; after cooling the temperature to 70°C, add IPDI( 4.545g, 204.5mmol), the mixture was stirred at 70°C for 10 minutes; then DBTDL (2mg) was added and the mixture was further stirred at 70°C for 45 minutes to obtain a self-healing prepolymer A;

[0054](2) Synthesis of self-repairing prepolymer B

[0055]First, pour PPG330N (25g, 125mmol) into a 500ml four-neck flask equipped with a mechanical stirrer and a vacuum inlet. Stir under vacuum for half an hour at 120°C to remove internal moisture; after cooling the temperature to 60°C, add IPDI( 5.55g, 250mmol), the mixture was stirred at 60°C for 10 minutes; then DBTDL (1.5...

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Abstract

The invention discloses a preparation method of an anti-icing super-hydrophobic coating with self-repairing performance. According to the invention, a self-repairing polymer is adopted as a base material, micron carbon powder and multi-walled carbon nanotubes are adopted as fillers, and a micro-nano hierarchical structure is constructed by applying the modified micron carbon powder and the modified multi-walled carbon nanotubes on the basis, so super-hydrophobicity is achieved; and then the micro-nano hierarchical structure is semi-embedded into the self-repairing polymer base material, so mechanical stability of the coating is realized. According to the invention, a new feasible scheme is provided for anti-icing protection of electrical equipment and power transmission lines, and meanwhile, a new insight is provided for scientific research in the anti-icing field.

Description

Technical field[0001]The invention belongs to the technical field of coatings, and specifically relates to a preparation method of an anti-icing superhydrophobic coating with self-repairing performance.Background technique[0002]The losses caused by the severe snow disaster in the south in 2008 are obvious to all. Many transmission lines were so heavily iced that the power line towers were overwhelmed and collapsed, causing the power supply system to fall into a large-scale paralysis, affecting so many provinces and causing huge losses. The icing of equipment has brought great inconvenience to the power system and even the production and life of the people. Therefore, the demand for excellent anti-icing technology is imminent.[0003]A variety of anti-icing / de-icing methods have been introduced: such as superhydrophobic surface (Appl.Surf.Sci.435(2018)585-591), heating (ACS Appl.Mater.Interfaces 8(2016)3551-3556) , Release anti-icing agents, liquid injection materials (Nanoscale 11 (20...

Claims

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Application Information

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IPC IPC(8): C09D175/08C09D7/62
CPCC08K2201/011C08L2205/025C09D175/08C09D7/62C08L75/08C08K9/06C08K3/041C08K3/04
Inventor 王鹏王建张希民陈涛段巍李春燕
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)