Nano ceramic coating and use method thereof

A nano-ceramic and coating technology, applied in coatings and other directions, can solve the problems of high price of commercial coatings, difficult to balance the hydrophobicity and adhesion of hydrophobic coatings, and achieve good adhesion and flatness, excellent anti-ultraviolet ability, Durable effect

Pending Publication Date: 2022-06-03
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned problems or deficiencies, in order to solve the problem that the coating hydrophobicity and binding force of existing hydrophobic

Method used

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  • Nano ceramic coating and use method thereof
  • Nano ceramic coating and use method thereof
  • Nano ceramic coating and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0026] Example 1:

[0027] 0.4 g of nano-silica powder, 0.4 g of nano-titanium dioxide powder, 0.9 g of polydimethylsiloxane, 0.835 g of fluorocarbon resin, and 12 g of ethyl acetate were mixed to obtain coating component A.

[0028] 0.1 g of ethyl orthosilicate, 0.2 g of dibutyltin dilaurate, and 0.165 g of isocyanate were mixed to obtain a topcoat coating component B.

[0029] All components A and B of the hydrophobic nano-ceramic coating were added to a beaker and mixed, and the beaker containing the mixed hydrophobic nano-ceramic coating was placed in an ultrasonic cleaner for ultrasonic treatment for 3 minutes.

[0030] The hydrophobic nano-ceramic coating completed by ultrasonic dispersion is loaded into the spray gun and sprayed evenly on the surface of the substrate.

[0031] The sprayed aluminum plate was put into an oven, the oven temperature was set to 50° C., and the temperature was maintained for 2 hours, and then a hydrophobic nano-ceramic coating was obtained. ...

Example Embodiment

[0033] Example 2:

[0034] Coating component A was obtained by mixing 0.3 g of nano-silica powder, 0.3 g of nano-titanium dioxide powder, 0.9 g of polydimethylsiloxane, 0.835 g of fluorocarbon resin, and 12 g of ethyl acetate.

[0035] 0.1 g of ethyl orthosilicate, 0.2 g of dibutyltin dilaurate, and 0.165 g of isocyanate were mixed to obtain a topcoat coating component B.

[0036] The coating preparation method is the same as that of Example 1.

[0037] The test analysis of the hydrophobic nano-ceramic coating is as follows, the contact angle of the coating is 141.93°, the contact angle after irradiation is 140.35°, the contact angle after sanding is 130.22°, the rolling angle of the coating is 16.61°, and the surface roughness is 3.2 μm. Icing gain 0.2g.

Example Embodiment

[0038] Example 3:

[0039] Coating component A was obtained by mixing 0.4 g of nano-silica powder, 0.2 g of nano-titanium dioxide powder, 0.9 g of polydimethylsiloxane, 0.835 g of fluorocarbon resin, and 12 g of ethyl acetate.

[0040] 0.1 g of ethyl orthosilicate, 0.2 g of dibutyltin dilaurate, and 0.165 g of isocyanate were mixed to obtain a topcoat coating component B.

[0041] The coating preparation method is the same as that of Example 1.

[0042] The test analysis of the hydrophobic nano-ceramic coating is as follows, the contact angle of the coating is 136.72°, the contact angle after irradiation is 136.14°, the contact angle after sanding is 122.41°, the rolling angle of the coating is 17.06°, and the surface roughness is 3.2 μm. Icing gain 0.2g.

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Abstract

The invention belongs to the technical field of preparation and application of coatings, and particularly relates to a nano ceramic coating and a use method thereof. According to the invention, the nanoscale titanium dioxide powder and the silicon dioxide powder are used as components of the hydrophobic coating, and the characteristics of excellent ultraviolet resistance and self-cleaning function of titanium dioxide and low price, good dispersity, high hardness, large specific surface area and the like of silicon dioxide are utilized; the two kinds of powder are mixed, so that a uniform micro-nano structure can be formed on a substrate when the powder is prepared into a coating, the roughness required by hydrophobicity can be provided, and a large hydrophobic angle is generated. And meanwhile, the powder is covered by sufficient organic solvent and resin, so that good binding force and flatness can be kept while roughness is provided, and the prepared coating is good in durability. The material is low in cost and simple in use process, can be produced on a large scale, and can be applied to various base materials; the prepared coating is excellent in performance and has instructive significance in practical application of the hydrophobic coating.

Description

technical field [0001] The invention belongs to the technical field of preparation and application of coatings, in particular to a nano-ceramic coating and a method for using the same. Background technique [0002] In recent years, hydrophobic surfaces have been widely used in anti-icing, anti-corrosion, self-cleaning, oil-water separation and other fields. However, an anti-icing and hydrophobic coating that can balance performance and cost requirements has not yet been developed. Although the hydrophobic and anti-icing coatings on the market have the advantages of easy operation, easy cleaning and good hydrophobicity, most of them are expensive. , under the action of external force, the micro-nano structure of the coating surface is easily damaged, and the hydrophobicity of the coating is greatly reduced for a long time. In addition, when exposed to dew, frost and other external environments, the micro-nano structure and low surface energy substances on the surface of the...

Claims

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Application Information

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IPC IPC(8): C09D183/04C09D127/12C09D7/61C09D7/63
CPCC09D183/04C09D7/61C09D7/63C08K2201/011C08K2003/2241C08L27/12C08K3/36C08K3/22C08K5/29
Inventor 张林博张翰轩刘志杰尹良君
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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