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A kind of antifouling flashover superhydrophobic self-cleaning coating and preparation method thereof

A super-hydrophobic and self-cleaning technology, applied in antifouling/underwater coatings, fireproof coatings, conductive coatings, etc., can solve the problems of complicated preparation process, low production efficiency and high production cost, and achieve simple preparation process and high production efficiency High, low production cost effect

Active Publication Date: 2017-12-01
QINGDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] For this reason, the present invention provides an antifouling flashover superhydrophobic coating, which can be applied to the surface of various substrates to solve the problems of complicated preparation process, low production efficiency, high production cost and expensive equipment required

Method used

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  • A kind of antifouling flashover superhydrophobic self-cleaning coating and preparation method thereof
  • A kind of antifouling flashover superhydrophobic self-cleaning coating and preparation method thereof
  • A kind of antifouling flashover superhydrophobic self-cleaning coating and preparation method thereof

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preparation example Construction

[0033] The preparation method of the antifouling flashover superhydrophobic self-cleaning coating of the present invention is characterized in that silicone glass glue, polyvinylidene fluoride powder, titanium dioxide and aluminum hydroxide are first added to the organic solvent, and fully stirred to make a mixed dispersion , during construction, the dispersion liquid is evenly coated on the surface of the base material, and the anti-fouling flashover super-hydrophobic self-cleaning coating can be obtained.

[0034] The silicone glass glue used in the present invention is neutral and acidic silicone glass glue. The curing time of neutral silicone glass glue is longer, and its bonding ability is weaker than that of acidic silicone glass glue. Therefore, acidic silicone glass glue is preferably used. Its consumption is 5-20% of that of the organic solvent. If the amount of silicone glass glue is too small, it will easily cause low viscosity of the dispersion and uneven applicati...

Embodiment 1

[0041] The antifouling flashover superhydrophobic self-cleaning coating of the present embodiment comprises following components:

[0042] Acidic silicone glass glue, polyvinylidene fluoride powder particles with an average particle size of 250 nanometers, photocatalyst titanium dioxide, anti-arc agent aluminum hydroxide and organic solvent tetrahydrofuran, the silicone glass glue is 7wt% of the organic solvent, so The polyvinylidene fluoride powder particles are 10wt% of the silicone glass glue, the photocatalyst is 35wt% of the silicone glass glue, and the anti-arc agent is 10wt% of the silicone glass glue. The density of the acidic silicone glass glue is 1.2g·cm -3 , The tensile strength is 50MPa, and the elongation is 155%.

[0043] The preparation method of the above-mentioned antifouling flashover superhydrophobic self-cleaning coating comprises the following steps: adding silicone glass glue into an organic solvent, adding polyvinylidene fluoride powder particles, phot...

Embodiment 2

[0046] The antifouling flashover superhydrophobic self-cleaning coating of the present embodiment comprises following components:

[0047] Acidic silicone glass glue, polyvinylidene fluoride powder particles with an average particle size of 2 nanometers, photocatalyst titanium dioxide, arc-resistant agent aluminum hydroxide and organic solvent tetrahydrofuran, the silicone glass glue is 5wt% of the organic solvent, so The polyvinylidene fluoride powder particles are 25wt% of the silicone glass glue, the photocatalyst is 20wt% of the silicone glass glue, and the anti-arc agent is 5wt% of the silicone glass glue. The density of the acidic silicone glass glue is 1.2g·cm -3 , The tensile strength is 50MPa, and the elongation is 155%.

[0048] The preparation method of the above-mentioned antifouling flashover superhydrophobic self-cleaning coating comprises the following steps: adding silicone glass glue into an organic solvent, adding polyvinylidene fluoride powder particles, ph...

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Abstract

The invention relates to an antifouling flashover superhydrophobic self-cleaning coating, which is characterized in that it comprises the following components: silicone glass glue, polyvinylidene fluoride powder particles, photocatalyst, anti-arc agent and organic solvent, the silicon The ketone glass glue is 5-20wt% of the organic solvent, the polyvinylidene fluoride powder particles are 10-50wt% of the silicone glass glue, and the photocatalyst is 10-50wt% of the silicone glass glue , the anti-arcing agent is 5-20wt% of the silicone glass glue. The surface contact angle of the coating formed by using this coating is greater than 150°, has good insulation, and the breakdown voltage is greater than 15kV / mm.

Description

technical field [0001] The invention relates to an antifouling flashover superhydrophobic coating, in particular to an antifouling flashover superhydrophobic self-cleaning coating and a preparation method thereof. Background technique [0002] The outer insulating surface of power equipment will gradually accumulate dirt during operation. In a dry state, the resistance of the dirt layer is very high, and the leakage current flowing through the dirt layer is small, which has no significant impact on the insulation strength. However, under the weather conditions such as fog, dew, drizzle, and melting snow, the dirty layer is moistened, and the electrolyte in the dirty layer dissolves, which increases the surface conductance and leakage current in the dirty layer. Due to the thermal effect of the leakage current, a dry area appears at a place with a large current density, and the resistance of the dirty layer in the dry area increases suddenly, so that the dry area bears a high...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D183/04C09D127/16C09D5/14C09D5/18C09D5/24C09D7/12
Inventor 丛海林于冰陈新杨淑静焦明明
Owner QINGDAO UNIV
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