Super-hydrophobic glaze layer, inorganic ceramic membrane containing super-hydrophobic glaze layer, preparation method and application

An inorganic ceramic film and super-hydrophobic technology, applied in the field of surface engineering, can solve problems such as reducing the surface resistance of insulator strings, reducing the flashover voltage of insulator strings, and flashover of insulator strings, achieving good economic benefits, large contact angles, and mechanical stability sex-enhancing effect

Pending Publication Date: 2022-02-01
HAINAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Severe weather such as ice and snow threatens the safe and stable operation of transmission lines. The weight of ice can cause failures such as tower collapse and wire breakage. When the ice melts, it will cause flashover of insulator strings and other accidents. In severe cases, it may even cause power grid paralysis
Especially when the insulator strings of the transmission line are covered with ice, the shape and structure of the insulators will be changed, causing the potential of the insulator strings to drop along the ice, which greatly reduces the flashover voltage of the insulator strings
Secondly, when the ice on the insulator strings melts, the surface of the insulator strings will be wet. If there are pollutants in the melted ice, the surface resistance of the insulator strings will be greatly reduced, causing flashover failures and even accidents.

Method used

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  • Super-hydrophobic glaze layer, inorganic ceramic membrane containing super-hydrophobic glaze layer, preparation method and application
  • Super-hydrophobic glaze layer, inorganic ceramic membrane containing super-hydrophobic glaze layer, preparation method and application
  • Super-hydrophobic glaze layer, inorganic ceramic membrane containing super-hydrophobic glaze layer, preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] In this experiment, superhydrophobic glaze layers with doped h-BN contents of 0, 5wt%, and 10wt% were prepared, and the other parameters were kept the same except for the h-BN content.

[0029] Firstly, weigh 2.5g of glaze powder; 0.125g of h-BN and 2.375g of glaze powder; 0.25g of h-BN and 2.25g of glaze powder.

[0030] Then use the material: ball: water ratio of 1:2:1.5, weigh 3.75g deionized water, 5g zirconia ball mill, then add 0.005g methyl cellulose, 0.005g tryptophan sodium polyphosphate, and use a ball milling tank for ball milling For mixing materials, the rotating speed of the ball milling tank is 400r / min, and the ball milling time is 0.5h.

[0031] In addition, put a 15*15*1mm alumina ceramic substrate into a beaker, add absolute ethanol to soak it, use 120W power to ultrasonically clean the alumina ceramic substrate for 20 minutes, and then place it in an oven at 70°C for drying.

[0032] The glazing adopts the dip coating method. After dipping for 10 se...

Embodiment 2

[0036] In this experiment, superhydrophobic glaze layers with doped c-BN contents of 0, 5wt%, and 10wt% were prepared, and other parameters were kept the same except for c-BN content.

[0037] First, weigh 2.5g of glaze powder; 0.125g of c-BN and 2.375g of glaze powder; 0.25g of c-BN and 2.25g of glaze powder.

[0038] Then use the material: ball: water ratio of 1:2:1.5, weigh 3.75g deionized water, 5g zirconia ball mill, then add 0.005g methyl cellulose, 0.005g tryptophan sodium polyphosphate, and use a ball milling tank for ball milling For mixing materials, the rotating speed of the ball milling tank is 400r / min, and the ball milling time is 0.5h.

[0039] In addition, put a 15*15*1mm alumina ceramic substrate into a beaker, add absolute ethanol to soak it, use 120W power to ultrasonically clean the alumina ceramic substrate for 20 minutes, and then place it in an oven at 70°C for drying.

[0040] The glazing adopts the dip coating method. After dipping for 10 seconds, put...

Embodiment 3

[0044] In this experiment, superhydrophobic glaze layers with doped c-BN contents of 0, 5wt%, and 10wt% were prepared, and other parameters were kept the same except for c-BN content.

[0045]First, weigh 2.5g of glaze powder; 0.125g of c-BN and 2.375g of glaze powder; 0.25g of c-BN and 2.25g of glaze powder.

[0046] Then use the material: ball: water ratio of 1:2:1.5, weigh 3.75g deionized water, 5g zirconia ball mill, then add 0.005g methyl cellulose, 0.005g tryptophan sodium polyphosphate, and use a ball milling tank for ball milling For mixing materials, the rotating speed of the ball milling tank is 400r / min, and the ball milling time is 0.5h.

[0047] In addition, put a 15*15*1mm alumina ceramic substrate into a beaker, add absolute ethanol to soak it, use 120W power to ultrasonically clean the alumina ceramic substrate for 20 minutes, and then place it in an oven at 70°C for drying.

[0048] The spraying method is used for glazing, the distance between the nozzle and ...

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Abstract

The invention belongs to the field of surface engineering, and discloses a super-hydrophobic glaze layer, an inorganic ceramic membrane containing the super-hydrophobic glaze layer, a preparation method and application. By forming a pure inorganic super-hydrophobic protective coating, the super-hydrophobic coating not only has excellent hydrophobic performance and pollution prevention, but also has good flashover prevention performance under different weather conditions of frost, snow and the like. The inorganic super-hydrophobic coating prepared by the invention realizes zero addition of harmful low-surface-energy substances such as fluoride and the like, and the weather resistance and the mechanical stability of the glaze layer are improved to a certain extent by doping inorganic non-metallic material hexagonal boron nitride / cubic boron nitride. An h-BN / c-BN doped composite glaze layer is prepared by simulating a biological surface microstructure, so that a large contact angle and a small rolling angle are realized, and water drops are easy to roll off on the surface. The inorganic ceramic membrane can be applied to various surfaces of ceramics, glass, metal and the like, is simple in preparation process, has good economic benefits, and is suitable for market popularization and application.

Description

technical field [0001] The invention belongs to the field of surface engineering, and relates to a superhydrophobic inorganic ceramic film, in particular to a superhydrophobic glaze layer, an inorganic ceramic film containing the same, a preparation method and an application. Background technique [0002] Severe weather such as ice and snow threatens the safe and stable operation of transmission lines. The weight of ice can lead to tower collapse, wire breakage and other failures. When the ice melts, it will cause flashover of insulator strings and other accidents. In severe cases, it may even cause power grid paralysis. Especially when the insulator strings of the transmission line are covered with ice, the shape and structure of the insulators will be changed, causing the potential of the insulator strings to drop along the ice, which greatly reduces the flashover voltage of the insulator strings. Secondly, when the ice on the insulator strings melts, the surface of the in...

Claims

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Application Information

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IPC IPC(8): C04B41/86C03C8/20
CPCC04B41/86C04B41/5022C04B41/009C03C8/20C04B35/10C04B41/4545C04B41/4539C04B41/4543
Inventor 李建林谢声亮苗义民
Owner HAINAN UNIVERSITY
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