Preparation process of super-hydrophobic super-self-cleaning anti-pollution flashover insulator applied to electric power system

A technology of power system and preparation process, applied in insulators, antifouling/underwater coatings, circuits, etc., can solve the problems of decreased hydrophobicity and insufficient hydrophobicity, and achieve the effect of maintenance-free

Inactive Publication Date: 2019-04-09
ANHUI YIFALA ELECTRICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Although the above two coatings can achieve a certain degree of hydrophobic and antifouling functions, they are still a unitary structure, and the hydrophobicity of the surface decreases significantly after the surface is worn. In addition, its hydrophobic performance is still insufficient.

Method used

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  • Preparation process of super-hydrophobic super-self-cleaning anti-pollution flashover insulator applied to electric power system
  • Preparation process of super-hydrophobic super-self-cleaning anti-pollution flashover insulator applied to electric power system
  • Preparation process of super-hydrophobic super-self-cleaning anti-pollution flashover insulator applied to electric power system

Examples

Experimental program
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Effect test

Embodiment 1

[0041] A preparation process for an ultra-hydrophobic, ultra-self-cleaning, anti-pollution flashover insulator applied to a power system, comprising the following steps:

[0042] (1) Preparation of nano-silica particles: Dissolve 300mL of TEOS in ethanol to obtain a mixture of 3.5L of absolute ethanol and TEOS, and pour the mixture of TEOS and absolute ethanol into an electric stirring paddle, dripping In a 5L flask with a capacity of funnel and condenser, the dropping funnel contains ammonia solution prepared according to the volume ratio of distilled water and ammonia water at 2:7, turn on the electric stirrer, and at the same time turn on and adjust the switch of the dropping funnel to make 180mL of ammonia The aqueous solution was evenly dropped into the three-necked flask at a rate of 15mL / min. After the distilled aqueous solution of ammonia was added dropwise, continue stirring for 1 hour to obtain nano-silica sol. Dry the nano-silica sol in a drying oven at 120°C for 24 ...

Embodiment 2

[0047] All the other are the same as Example 1, except that: the consumption of TEOS in the step (1) is 400ml, and the nano-silica sol is dried in a drying oven at 115°C for 26h; The consumption of methyl siloxane is 0.6g, the consumption of dibutyltin dilaurate is 0.06g, the consumption of nano silicon dioxide is 6g, and described water bath temperature is 58 ℃, and the consumption of acidic ultrapure water is 6ml; Described step ( 4) The temperature of the middle oven is 115°C, and the baking time is 25 minutes.

Embodiment 3

[0049] All the other are the same as Example 1, except that: the consumption of TEOS in the step (1) is 350ml, and the nano-silica sol is dried in a drying oven at 125°C for 22h; The consumption of methyl siloxane is 0.4g, the consumption of dibutyltin dilaurate is 0.04g, the consumption of nano silicon dioxide is 4g, and described water bath temperature is 62 ℃, and the consumption of acidic ultrapure water is 4ml; Described step ( 4) The temperature of the middle oven is 125°C, and the baking time is 15 minutes.

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Abstract

The invention discloses a preparation process of a super-hydrophobic super-self-cleaning anti-pollution flashover insulator applied to an electric power system, and relates to the technical field of coatings. The preparation technology comprises the following steps: step (1) preparing nano-silica particles; step (2) obtaining nano-silica particles with lower surface energy; step (3) carrying out surface modification; and step (4) obtaining a super-hydrophobic coating. The coating is mainly composed of micro-nano inorganic materials, and the porous multi-stage multilayer structure causes the coating to be stable and wear-resistant. Although the transfer characteristic of the material affects the service life of the coating, the DSAN material has super-strong self-cleaning ability, the transfer and diffusion time required by the material is relatively short; and few micromolecule and nano-particles are consumed. The insulator does not need surface treatment after the service life of theDSAN material is terminated; and the DSAN material can be directly sprayed and is maintenance-free within the service life.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a preparation process for a super-hydrophobic super-self-cleaning anti-pollution flashover insulator applied to a power system. Background technique [0002] At present, in addition to the traditional porcelain and glass insulators used in power systems, relatively new silicone rubber external insulation products made of organic materials (including synthetic insulators, RTV coatings and climbing skirts) are also accepted to a certain extent, and It is playing the role of anti-pollution flashover that cannot be replaced by porcelain and glass insulators. As a formal product, synthetic insulators are generally considered to have a service life of 20 to 30 years, which is equivalent to the design life of lines and substations (30 years); while porcelain and glass insulators are coated with RTV and PRTV coatings due to material properties, construction techniques, etc. The reason ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00C09D187/00C09D5/25C09D5/16H01B17/50C08G83/00
CPCC08G83/001C09D1/00C09D5/00C09D5/16C09D187/005H01B17/50
Inventor 戴文忠戴章吴钰娟戴超戴玉
Owner ANHUI YIFALA ELECTRICAL CO LTD
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