Super-hydrophobic nanometer transparent coating and preparation method thereof

A technology of transparent coating and super-hydrophobic coating, applied in coating, coating dipping, pigment-containing coating, etc., can solve the problems of high production cost, complicated preparation process and harsh reaction conditions of super-hydrophobic coating, and achieve the Low cost, simple coating process and mild reaction conditions

Active Publication Date: 2015-10-21
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a super-hydrophobic nano-transparent coating and its preparation method to solve the problems of high production cost, complicated preparation process and harsh reaction conditions of the super-hydrophobic coating.

Method used

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preparation example Construction

[0027] The invention provides a superhydrophobic nano transparent coating and a preparation method thereof, the preparation method comprising the steps of:

[0028] In the first step, 0.25 to 0.33 parts of the first type of inorganic nanoparticles are added to 25 to 28 parts of organic solvents, and ultrasonically dispersed to obtain the first solution; then 2.5 parts of dispersants and 0.1 parts of the second type of inorganic nanoparticles Add it to the above first solution, and ultrasonically disperse to obtain a dispersion. The second type of inorganic nanoparticles is preferably lipophilic SiO 2 Nanoparticles.

[0029] In the second step, 0.25-0.33 parts of cross-linking agent and 0.6 parts of additives are added to the dispersion liquid, and ultrasonically dispersed; then 0.4-0.5 parts of low surface energy polymers are added and mixed evenly to obtain a transparent and clear super-hydrophobic coating. The additive is preferably 0.5 part of ethanol and 0.1 part of glac...

Embodiment 1

[0033] Apply the preparation method provided by the invention to prepare superhydrophobic nano transparent coating, the specific steps are as follows:

[0034] In the first step, 0.25 parts of gas-phase SiO 2Nanoparticles (7nm) were added to 28 parts of N,N-dimethylformamide organic solvent, and ultrasonically dispersed for 10 minutes to obtain the first solution; then 2.5 parts of dispersant Nanosil 9009 and 0.1 part of lipophilic SiO 2 Nanoparticles (200 nm) were added to the above first solution, and ultrasonic dispersion was continued for 10 minutes to obtain a dispersion.

[0035] In the second step, add 0.33 parts of methyltrimethoxysilane crosslinking agent, 0.5 parts of ethanol and 0.1 part of glacial acetic acid to the above dispersion liquid, and continue ultrasonic dispersion for 10 minutes; add 0.4 parts of low surface energy polymer ten Dithiol, continue to sonicate for 10 minutes to obtain a transparent and clear super-hydrophobic coating.

[0036] The third st...

Embodiment 2

[0038] In the first step, 0.3 parts of TiO 2 Nanoparticles (20nm) were added to 25 parts of xylene organic solvent, and ultrasonically dispersed for 10 minutes to obtain the first solution; then 2.5 parts of dispersant Nanosil 9009 and 0.1 part of lipophilic SiO 2 Nanoparticles (200 nm) were added to the above first solution, and ultrasonic dispersion was continued for 10 minutes to obtain a dispersion.

[0039] In the second step, add 0.33 parts of methyldimethoxysilane crosslinking agent, 0.5 parts of ethanol and 0.1 parts of ammonia water to the dispersion liquid, and continue ultrasonic dispersion for 10 minutes; add 0.4 parts of low surface energy polymer before coating FAS, continue to sonicate for 10 minutes to obtain a transparent and clear super-hydrophobic coating. The mass concentration of the ammonia water is 20%.

[0040] The third step is to apply the super-hydrophobic coating on the slide of the glass substrate by dipping and pulling, and dry it in an oven at ...

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Abstract

The invention provides a super-hydrophobic nanometer transparent coating and a preparation method thereof and belongs to the technical field of super-hydrophobic paint. The method includes the steps that firstly, a first category of inorganic nanometer particles are added into an organic solution, and ultrasonic dispersion is performed; secondly, dispersing agents and a second category of inorganic nanometer particles are added, and ultrasonic dispersion is performed so that a dispersion solution can be obtained; crosslinking agents and additives are added in the dispersion solution, ultrasonic dispersion is performed, finally, low-surface energy polymers are added, mixtures are evenly mixed, and transparent and clear super-hydrophobic paint is obtained; the surface of a solid base materials is coated with the transparent and clear super-hydrophobic paint, and the super-hydrophobic nanometer transparent coating is obtained through low-temperature thermal drying and curing. The super-hydrophobic performance of the super-hydrophobic nanometer transparent coating prepared through the method is excellent, the contact angle can be 160 degrees, the rolling angle is 1-7 degrees, the super-hydrophobic nanometer transparent coating can be sprayed to the surfaces of most of common materials, the morphology of the surfaces of the materials are not changed, and the application prospects and the application potency are very wide.

Description

technical field [0001] The invention belongs to the technical field of superhydrophobic coatings, and in particular relates to a superhydrophobic nano transparent coating and a preparation method thereof. Background technique [0002] The development of superhydrophobic coatings in the world began in the 1950s. Until the end of the 1990s, with the development of surface science and technology, especially the improvement of surface research techniques, superhydrophobic coatings were prepared by imitating the surface structure and properties of lotus leaves. Coatings have aroused people's attention. Exploring and realizing the industrial production of superhydrophobic coatings is currently a hot spot and difficulty faced by the coatings industry. The surface with super-hydrophobic effect has broad application prospects in real production and life, such as waterproof clothing, bathroom walls, exterior wall coatings, electronic components, etc. It also has important application...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/06C09D7/12D06M13/252D06M13/513C23C16/00C03C17/34B27K3/00B27K3/12D21H21/06D21H19/38D21H19/40D21H19/44
Inventor 郑咏梅周蕾
Owner BEIHANG UNIV
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