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Processing technology of UV-curing fluorine-containing wear-resistant hydrophobic coating

A hydrophobic coating and processing technology, applied in the direction of coating, can solve the problems of electrophoretic layer corrosion, affecting the appearance and durability of aluminum materials, and achieve the effect of improving waterproof performance, stable structure and improving hydrophobic performance.

Active Publication Date: 2018-09-28
GUANGZHOU SUN EMPEROR INTELLIGENT TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a UV-cured fluorine-containing wear-resistant hydrophobic coating process in order to solve the above problems, so as to solve the problem of long-term contact and friction of aluminum materials used on clothes rails in the prior art. The long-term wetting of the laundry detergent anion and non-ionic surfactant aqueous solution remaining on the clothes will easily cause corrosion to the electrophoretic layer on the surface of the aluminum material, expose the aluminum material to oxidation, and affect the technical problems such as the appearance and durability of the aluminum material

Method used

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  • Processing technology of UV-curing fluorine-containing wear-resistant hydrophobic coating

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preparation example Construction

[0057] c, preparation of bottom hydrophobic coating emulsion:

[0058] 1) Dispersing the hydrophobic nano-SiO2 / TiO2 particles prepared in step a into ethyl acetate, and ultrasonically dispersing them for 40-60min to obtain a nano-SiO2 / TiO2 suspension with a dispersion concentration lower than 0.05g / mL;

[0059] 2) slowly adding the nano-SiO2 / TiO2 suspension to the silicone fluorine-containing acrylate emulsion prepared in step b, stirring, adding a photosensitizer during the stirring process and stirring evenly;

[0060] d. Preparation of surface hydrophobic coating: Perfluoroheptadecanetrimethyloxysilane is used as hydrophobic agent, added to isopropanol solution under stirring condition, dibutyltin dilaurate, hydrophobic nano SiO2 / TiO2 suspension, simethicone oil, stirred at room temperature for 2-4h, the surface hydrophobic coating is obtained;

[0061] e. Spraying of the underlying hydrophobic coating emulsion:

[0062] 1) Add the prepared mixture into the small pot of t...

Embodiment 1

[0068] Add 5g of nano-SiO2 to 500mL of xylene solvent, carry out ultrasonic dispersion for 20min, transfer to a three-necked flask and add 4.73g of perfluoro(heptadecafluoro)decyltrimethoxysilane as a modifier, and the modification temperature is 70°C , the reflux time is 8h, and the modified powder obtained by suction filtration is dried in a blast drying oven at 65°C for 4h;

[0069] The underlying hydrophobic coating material is based on 3.00g perfluorooctyl ethyl methacrylate, 0.55g methyl methacrylate, 1.24g 1,6-hexanediol diacrylate, 0.6g hydroxyethyl acrylate, 0.6gN,N -Methylenebisacrylamide, 5mL of hydroxy silicone oil to prepare mixed resin, add 40mL of deionized water and 1g of emulsifier to the reflux reactor, heat to 95°C under nitrogen protection, and drop it in 50-75min Add 20mL of ammonium persulfate solution and react for 90min under stirring at 300rpm;

[0070] The surface hydrophobic coating material is prepared according to the formula of 40g isopropanol, 1...

Embodiment 2

[0073] The difference between this embodiment and embodiment 1 is that TiO2 nanoparticles are selected as the particle material for constructing microscopic protrusions, and the particle size range is about 55-65 nm.

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Abstract

The invention discloses a processing technology of a UV-curing fluorine-containing wear-resistant hydrophobic coating. The processing technology comprises the following steps: a, preparing hydrophobicnano SiO2 / TiO2 particles; b, preparing an organic silicone fluorine-containing acrylate emulsion; c, preparing a bottom-layer hydrophobic coating emulsion; e, spraying the bottom-layer hydrophobic coating emulsion; and f, spraying a surface hydrophobic coating. The processing technology disclosed by the invention has the beneficial effects that a double-layer cooperation manner of the bottom-layer hydrophobic coating and the surface hydrophobic coating is adopted, so that the coating has the properties of hydrophobicity and lipophobicity while adhesion of the waterproof coating and a target material is ensured, and water resistance of the target material is improved; the bottom-layer hydrophobic coating is cured by acrylate, so that contact strength of the bottom-layer hydrophobic coatingand the surface of the target material can be provided, and the compactness of the waterproof coating can be improved; and a structure of a nano material is stabilized through the organic silicone modified fluorine-containing acrylate, fluorine-containing silane and fluorine-containing acrylate are also used, so that hydrophobicity of the surface-layer hydrophobic coating is improved.

Description

technical field [0001] The invention relates to the technical field of hydrophobic and oleophobic protective coatings wrapped with aluminum alloys for household clothes dryers, in particular to a processing technology for UV-cured fluorine-containing wear-resistant hydrophobic coatings. Background technique [0002] The surface of the material is specially treated by chemical and physical means in the hydrophobic and oleophobic coating, so that the surface of the material can effectively hinder the spread of droplets, which can protect the surface of the material from pollution and corrosion; the surface of superhydrophobic materials is generally The performance is that the surface liquid static contact angle is greater than 150°, and the droplet rolling angle is less than 9°. The droplet is easy to roll completely on the surface of the material and finally detaches from the material. Therefore, the hydrophobic coating can make the surface of the material self-cleaning, anti-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D151/08C09D183/04C09D7/62C09D7/63C08F283/12C08F220/14C08F220/20C08F220/24C08F222/38C08F222/14C08F2/26C08F2/30
CPCC08F2/26C08F2/30C08F283/122C08K2003/2241C08K2201/003C08K2201/011C09D151/08C09D183/04C09D7/62C09D7/63C09D7/67C08K9/00C08K9/06C08K3/36C08K3/22C08K5/5406C08F222/102
Inventor 欧阳满玉周武艺张坚诚
Owner GUANGZHOU SUN EMPEROR INTELLIGENT TECH
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