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Transparent hydrophobic wear-resistant coating and preparation method thereof

A wear-resistant coating and hydrophobic technology, applied in coatings, epoxy resin coatings, devices for coating liquids on the surface, etc., can solve problems such as high cost of nanoparticles, decreased light transmission performance of the coating surface, and complex equipment , to achieve the effects of large-scale industrial production, excellent interfacial interaction, and excellent scratch resistance

Active Publication Date: 2018-01-19
SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages are that the equipment is complicated, the processing efficiency is low, and the requirements for the processing environment are quite high.
[0006] CN103436138A discloses a method of hybridizing and blending nanoparticles and epoxy resin to obtain an epoxy resin hybrid solution, then adding fluorine-containing substances and catalysts to form a fluorine-containing solution, first spraying the hybrid solution on the substrate, and then spraying the fluorine-containing solution , where the role of nanoparticles is still to build a rough surface, without departing from the principle of the above-mentioned traditional method, it should also have the problem of decreased light transmission performance of the coating surface, and its dispersion is not easy to control, the process is complicated, and it is impossible to prepare ultra-thin coatings , and the cost of nanoparticles is high, so its application is more limited
[0007] Therefore, in the existing methods of preparing transparent hydrophobic wear-resistant coatings, the construction of microscopic surface structures increases surface roughness and increases light scattering, which generally reduces the light transmission performance of the coating surface, and the preparation process is complicated and the cycle is long. , the conditions are harsh, and it is difficult to prepare transparent hydrophobic and wear-resistant coatings on a large scale, which restricts the application of transparent hydrophobic and wear-resistant coatings on glass such as mobile phones, automobiles, and spacecraft

Method used

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  • Transparent hydrophobic wear-resistant coating and preparation method thereof
  • Transparent hydrophobic wear-resistant coating and preparation method thereof
  • Transparent hydrophobic wear-resistant coating and preparation method thereof

Examples

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Effect test

Embodiment 1

[0048] A transparent hydrophobic wear-resistant coating comprises an epoxy resin layer and a low surface energy fluorine-containing layer arranged in sequence from top to bottom.

[0049] Its preparation steps are as follows:

[0050] 1) Preparation of epoxy resin coating:

[0051] Dissolve 2.63g of epoxy resin E-44 and 0.697g of polyetheramine D230 in 80mL of acetone, stir for 2h, and sonicate for 30min to obtain a transparent blend solution. Soak the glass slide (25*25*1mm) in the solution for 5s, pull it vertically at a speed of 6mm / s, place the base material containing the coating in a blast oven for heating and curing, and bake at 70°C Dry for 2 hours, and then dry at 120°C for 2 hours to obtain an epoxy resin coating with surface microscopic morphology.

[0052] 2) Preparation of low surface energy coating:

[0053] Add 2 μL of low surface energy substance dropwise to the surface of the substrate containing epoxy resin coating obtained in step 1), wipe the low surface...

Embodiment 2

[0056] A transparent hydrophobic wear-resistant coating comprises an epoxy resin layer and a low surface energy fluorine-containing layer arranged in sequence from top to bottom.

[0057] Its preparation steps are as follows:

[0058] 1) Preparation of epoxy resin coating:

[0059] Dissolve 1.16g of epoxy resin E-44 and 0.307g of polyetheramine D230 in 60mL of acetone, stir for 3h, and sonicate for 15min to obtain a transparent blend solution. Soak the glass slide (25*25*1mm) in the solution for 10s, pull it vertically at a speed of 4mm / s, place the obtained base material containing the coating in a blast oven for heating and curing, and bake at 70°C Dry for 2 hours, and then dry at 120°C for 2 hours to obtain an epoxy resin coating with surface microscopic morphology.

[0060] 2) Preparation of low surface energy coating:

[0061] Add 2 μL of low surface energy substance dropwise to the surface of the substrate containing epoxy resin coating obtained in step 1), wipe the l...

Embodiment 3

[0064] A transparent hydrophobic wear-resistant coating comprises an epoxy resin layer and a low surface energy fluorine-containing layer arranged in sequence from top to bottom.

[0065] Its preparation steps are as follows:

[0066] 1) Preparation of epoxy resin coating:

[0067] Dissolve 0.378g of epoxy resin E-44 and 0.1g of polyetheramine D230 in 60mL of acetone, stir for 1.5h, and sonicate for 30min to obtain a transparent blend solution. Soak the glass slide (25*25*1mm) in the solution for 12s, pull it vertically at a speed of 2mm / s, place the obtained base material containing the coating in a blast oven for heating and curing, and bake at 70°C Dry for 2 hours, and then dry at 120°C for 2 hours to obtain an epoxy resin coating with surface microscopic morphology.

[0068] 2) Preparation of low surface energy coating:

[0069] Add 2 μL of low surface energy substance dropwise to the surface of the substrate containing epoxy resin coating obtained in step 1), wipe the ...

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Abstract

The invention relates to a transparent hydrophobic wear-resistant coating and a preparation method thereof. The transparent hydrophobic wear-resistant coating comprises an epoxy resin layer and a low-surface-energy fluorine-containing layer which are arranged in sequence from top to bottom. The preparation method comprises the following steps: (1) blending epoxy resin and a curing agent into an organic solvent, carrying out ultrasonic treatment to obtain a coating solution, wherein the total content of the epoxy resin and the curing agent is 0.001-5wt%; adopting a dip-coating method for a substrate material, uniformly adhering the coating solution to the surface of the substrate material, and taking out and curing to obtain the epoxy resin layer; and (2) preparing the low-surface-energy fluorine-containing layer, namely coating the epoxy resin layer with the fluorine-containing solution, and drying to obtain the transparent hydrophobic wear-resistant coating. The transparent hydrophobic wear-resistant coating is equivalent to glass in transparency, the surface contact angle is 102 degrees or above, the hydrophobicity of the coating is controllable, and the transparent hydrophobic wear-resistant coating has excellent mechanical strength and bonding property and is convenient for large-scale industrial production.

Description

technical field [0001] The invention relates to the technical field of hydrophobic materials, in particular to a transparent hydrophobic wear-resistant coating and a preparation method thereof. Background technique [0002] Transparent hydrophobic and wear-resistant coating materials have many excellent surface properties due to their low surface free energy, such as antifouling, self-cleaning, hydrophobic and oleophobic, and scratch resistance, and have potential application values ​​in many fields . For example, the windshield self-cleaning glass of spacecraft such as automobiles and airplanes can quickly condense rainwater into water droplets on the glass surface, take away the dirt on the glass surface, and also play a role in glass protection; the curtain wall and window glass of buildings, It can avoid the danger of high-altitude glass cleaning operations and reduce the number of cleanings. Therefore, the transparent hydrophobic wear-resistant coating has broad appli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D183/08C09D5/00C08G59/50
CPCB05D1/38C08G59/50C09D5/00C09D163/00C09D183/08
Inventor 孙大陟雷凡吴冰羽
Owner SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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