Super-hydrophobic surface coating and preparation method thereof

A super-hydrophobic surface and coating technology, used in coatings, conductive coatings, epoxy resin coatings, etc., can solve the problems of inability to meet the requirements of large-area preparation, reduced protection ability, and reduced surface hydrophobic performance, and achieve excellent mechanical properties. Excellent performance and adhesion, excellent anti-icing ability, enhanced mechanical stability

Inactive Publication Date: 2018-05-18
UNIV OF SCI & TECH BEIJING
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The superhydrophobic surface is composed of micron and nanoscale rough surface structures, so most of them have low mechanical strength. When damaged by external force, the surface hydrophobicity decreases, the internal integrity is damaged, cracks and other defects occur, and the protection ability is reduced. reduce
In addition, in terms of technical methods, many methods for preparing superhydrophobic materials still have expensive raw materials, complicated steps, and poor repeatability, such as etching method, conversion film method, template method and other commonly used superhydrophobic surface or coating preparation technologies. It is only suitable for laboratory research and cannot be used to meet the needs of large-scale preparation in industrial production

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  • Super-hydrophobic surface coating and preparation method thereof
  • Super-hydrophobic surface coating and preparation method thereof

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Embodiment 1

[0061] This embodiment provides a method for preparing a super-hydrophobic surface coating, including the steps of preparing a super-hydrophobic solution and spraying the super-hydrophobic solution.

[0062] Described preparation super-hydrophobic solution is specifically:

[0063] (1) Measure raw material epoxy resin, epoxy curing agent, epoxy solvent and carbon nanotube;

[0064] (2) After mixing the epoxy resin and the carbon nanotubes, add an epoxy solvent; then, carry out ultrasonic dispersion, during which the epoxy solvent is replenished at intervals of Δt until the epoxy resin and the carbon nanotubes are mixed evenly, to obtain a mixed solution;

[0065] Before replenishing the epoxy solvent, it is necessary to suspend the ultrasound. After replenishing the epoxy solvent, every 1-5 seconds of ultrasonic dispersion, pause for 1-5 seconds, so as to control the heat generated by the ultrasound, thereby reducing the volatilization of the solvent.

[0066] (3) Add the ep...

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Abstract

The invention relates to a super-hydrophobic surface coating and a preparation method thereof, and belongs to the field of polymer coating materials. The super-hydrophobic surface coating is obtainedby spraying a super-hydrophobic solution containing epoxy resin, an epoxy curing agent, an epoxy solvent and carbon nanotubes on a substrate material. The super-hydrophobic surface coating has the advantages that materials are easy to obtain, self-cleaning is achieved, and icing is prevented, the preparation technology is simple, and large scale production and application are facilitated.

Description

technical field [0001] The invention belongs to the field of polymer coating materials, and in particular relates to a superhydrophobic surface coating and a preparation method thereof. Background technique [0002] In recent years, under the inspiration of "biobionics", superhydrophobic surfaces have attracted the interest of a large number of researchers. Superhydrophobic surface has broad application prospects in self-cleaning, anti-fog, anti-icing, anti-fouling, anti-corrosion, drag reduction and other fields, and is an important surface protection technology. It is generally believed that the surface of materials with water contact angle θ<90° is hydrophilic, the surface of materials with θ>90° is hydrophobic, and the surface of materials with θ≥150° is defined as a superhydrophobic surface. Therefore, superhydrophobic technology is applied to metal surface protection The field is an important breakthrough with broad development prospects. [0003] The superhydr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/24C09D7/61
Inventor 张达威张帆李君程学群李晓刚钱鸿昌
Owner UNIV OF SCI & TECH BEIJING
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