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Super-hydrophobic coating based on compounding of carbon nano tube and silicon dioxide and preparation method of super-hydrophobic coating

A technology of super-hydrophobic coating and silicon dioxide, applied in the direction of coating, etc., can solve the problems of high energy consumption, difficulty in removing ice layer, danger, etc.

Pending Publication Date: 2022-07-26
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods either have certain risks, or consume a lot of energy, and it is difficult to remove the ice layer safely and with low energy consumption.

Method used

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  • Super-hydrophobic coating based on compounding of carbon nano tube and silicon dioxide and preparation method of super-hydrophobic coating
  • Super-hydrophobic coating based on compounding of carbon nano tube and silicon dioxide and preparation method of super-hydrophobic coating
  • Super-hydrophobic coating based on compounding of carbon nano tube and silicon dioxide and preparation method of super-hydrophobic coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) Mix 60 parts of solvent, 1 part of dispersant, and 10 parts of fluorosilicone resin, and use zirconium dioxide as grinding beads to carry out sand grinding at room temperature for 5 minutes;

[0028] (2) adding 1 part of hydrophobic carbon nanotubes and 5 parts of hydrophobic nano-silicon dioxide to the mixed solution obtained in (1), and continued sanding for 10 min at room temperature;

[0029] (3) filter out the sand-milled slurry to obtain a filtrate;

[0030] (4) The filtrate is coated on the surface of the material, and after being placed at room temperature for 30 minutes, a composite superhydrophobic coating of hydrophobic nano-silica and hydrophobic carbon nanotubes can be obtained.

Embodiment 2

[0032] (1) Mix 70 parts of solvent, 2 parts of dispersant, and 15 parts of fluorosilicone resin, and use zirconium dioxide as grinding beads to carry out sand grinding at room temperature for 8min;

[0033] (2) adding 3 parts of hydrophobic carbon nanotubes and 10 parts of hydrophobic nano-silicon dioxide to the mixed solution obtained in (1), and continuing sand grinding for 15min at room temperature;

[0034] (3) filter out the sand-milled slurry to obtain a filtrate;

[0035] (4) The filtrate is coated on the surface of the material, and after standing at room temperature for 40 min, a composite superhydrophobic coating of hydrophobic nano-silica and hydrophobic carbon nanotubes can be obtained.

Embodiment 3

[0037] (1) Mix 80 parts of solvent, 5 parts of dispersant, and 20 parts of fluorosilicone resin, and use zirconium dioxide as grinding beads to carry out sand grinding at room temperature for 10 minutes;

[0038] (2) adding 5 parts of hydrophobic carbon nanotubes and 20 parts of hydrophobic nano-silicon dioxide to the mixed solution obtained in (1), and continuing sand grinding at room temperature for 20min;

[0039] (3) filter out the sand-milled slurry to obtain a filtrate;

[0040] (4) The filtrate is coated on the surface of the material, and after being placed at room temperature for 50 min, a composite superhydrophobic coating of hydrophobic nano-silica and hydrophobic carbon nanotubes can be obtained.

[0041] It can be seen from the data in the figure that the coating prepared by the present invention has good superhydrophobicity, can significantly prolong the freezing time, and has low ice layer adhesion, indicating that it has good anti-icing / deicing performance.

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Abstract

The invention provides a super-hydrophobic coating based on compounding of carbon nanotubes and silicon dioxide and a preparation method of the super-hydrophobic coating. The super-hydrophobic coating is prepared from the following components in parts by mass: 60-80 parts of a solvent, 1-5 parts of a dispersing agent, 1-5 parts of hydrophobic carbon nanotubes, 5-20 parts of hydrophobic nano silicon dioxide and 10-20 parts of fluorosilicone resin, the hydrophobic carbon nanotubes and the hydrophobic nano silicon dioxide particles are mixed, certain structural fluctuation is formed through mutual combination and interlocking between the hydrophobic carbon nanotubes and the hydrophobic nano silicon dioxide particles, meanwhile, resin is used as a binder to obtain a stable micro-nano structure, and the stable and durable super-hydrophobic coating is obtained by adding low surface energy of all the components; the anti-icing function is achieved, the icing time can be delayed, and an ice layer can be removed more easily.

Description

technical field [0001] The invention relates to the preparation of a superhydrophobic coating with anti-icing / deicing functions, in particular to a superhydrophobic coating based on the composite of hydrophobic nano-silica and hydrophobic carbon nanotubes and a preparation method thereof. Background technique [0002] The icing of transmission lines may lead to serious problems such as short circuits due to overloading of lines, frequent ice flashes due to icing of insulator strings, and line breakage due to uneven icing of adjacent stalls. The commonly used deicing methods are mostly high-altitude manual deicing or power line heating to melt the ice layer. However, these methods either have certain risks, or consume a lot of energy, and it is difficult to achieve safe and low-energy-consumption ice removal. Due to the low surface energy of the superhydrophobic coating, it is difficult for water droplets to stay on the surface, and the air layer on the surface can also dela...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/08C09D7/61
CPCC09D183/08C09D7/61C08K3/041C08K3/36
Inventor 邵亚薇刘洋赵振波王艳秋刘斌
Owner HARBIN ENG UNIV
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