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Stainless steel stain-resistant nano-coating and preparation method thereof

A nano-coating, anti-fouling technology, applied in coatings, antifouling/underwater coatings, paints containing biocides, etc., can solve problems such as weak adhesion, insufficiently dense coatings, and coating failures. Achieve the effect of improving hardness and scratch resistance, strong aesthetics, and dense coating

Inactive Publication Date: 2017-11-07
JIANGSU ANNATAI ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing titanium dioxide coatings have the following problems: (1) the nano titanium dioxide coating has poor adhesion to the substrate, the adhesion is not strong, and it is not resistant to scrubbing; (2) the prepared nano titanium dioxide coating is not compact enough, and the pores (3) Due to the uneven coating thickness of the nano-titanium dioxide coating, the surface of the stainless steel plate is mottled, which affects the appearance
However, the coating has poor adhesion to its attached substrate and the coating is not dense enough

Method used

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  • Stainless steel stain-resistant nano-coating and preparation method thereof
  • Stainless steel stain-resistant nano-coating and preparation method thereof
  • Stainless steel stain-resistant nano-coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A method for preparing a stainless steel stain-resistant nano-coating, comprising the following steps:

[0037] S1: Take 700ml of distilled water, add 100ml of 3% titanium dioxide nano-sol, 100ml of 2% silica nano-sol and 100ml of 1% alumina nano-sol to the distilled water while stirring, and continue stirring for 30 minutes after adding the raw materials;

[0038] S2: adjust the pH value of the sol solution in S1 with hydrochloric acid until the sol solution is clear and transparent, and prepare a nano-sol coating solution;

[0039] S3: Clean the surface of the stainless steel plate with deionized water for 15 minutes, and then blow it with a hot air blower for 5 minutes;

[0040] S4: The surface of the stainless steel plate is treated by shot peening, and the nano-sol coating liquid is put into the shot chamber. The mass ratio of covering liquid and shot peening is 5:100, the diameter of projectile is 0.5mm, and the impact time is 10min;

[0041] S5: Under the prote...

Embodiment 2

[0045] A method for preparing a stainless steel stain-resistant nano-coating, comprising the following steps:

[0046] S1: Take 700ml of distilled water, add 100ml of 3% titanium dioxide nano-sol, 100ml of 2% silica nano-sol and 100ml of 1% alumina nano-sol to the distilled water while stirring, and continue stirring for 30 minutes after adding the raw materials;

[0047] S2: adjust the pH value of the sol solution in S1 with hydrochloric acid until the sol solution is clear and transparent, and prepare a nano-sol coating solution;

[0048] S3: Clean the surface of the stainless steel plate with deionized water for 15 minutes, and then blow it with a hot air blower for 5 minutes;

[0049]S4: The surface of the stainless steel plate is treated by shot peening, and the nano-sol coating liquid is put into the shot chamber. The mass ratio of covering liquid and shot peening is 0.1:100, the diameter of projectile is 3mm, and the impact time is 1min;

[0050] S5: Under the protect...

Embodiment 3

[0052] A method for preparing a stainless steel stain-resistant nano-coating, comprising the following steps:

[0053] S1: Take 685ml of distilled water, add 90ml of 3% titanium dioxide nano-sol, 85ml of 2% silica nano-sol and 90ml of 1% alumina nano-sol into the distilled water while stirring, continue stirring for 28 minutes after adding the raw materials;

[0054] S2: adjust the pH value of the sol solution in S1 with hydrochloric acid until the sol solution is clear and transparent, and prepare a nano-sol coating solution;

[0055] S3: Clean the surface of the stainless steel plate with deionized water for 12 minutes, and then blow it with a hot air blower for 3 minutes;

[0056] S4: The surface of the stainless steel plate is treated by sandblasting, and the method of drip feeding is used. While sandblasting, the nano-sol coating liquid is dripped to form a nano-coating on the surface of the stainless steel plate, and then blown to dry, in which the nano-sol coating The ...

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Abstract

The invention provides a stainless steel stain-resistant nano-coating and a preparation method thereof. The stainless steel stain-resistant nano-coating comprises the following raw materials: 0.9-1.1 parts of nanometer-sized titanium dioxide sol, 0.85-1.1 parts of nanometer-sized silicon oxide sol, 0.9-1.15 parts of nanometer-sized aluminium oxide sol and 6.85-7.15 parts of distilled water. The preparation method comprises the steps of preparing a nanometer-sized sol coating liquid and coating to form the nano-coating. The stainless steel stain-resistant nano-coating is compact in surface, uniform and high in hardness, has strong adhesion to a stainless steel substrate, and is good in hydrophilicity, stain-resistant and corrosion-resistant.

Description

technical field [0001] The invention belongs to the technical field of nano functional materials and environment-friendly materials, and in particular relates to a stainless steel stain-resistant nano-coating and a preparation method thereof. Background technique [0002] Kitchen fume is one of the main sources of pollutants in the residence. The hazards of kitchen fume mainly include the following two aspects: first, it affects human health. Because there are many types of fume and various pollutants are mixed, people will easily inhale and accumulate serious diseases for a long time; second, it affects the appearance of the kitchen. If it is closed, the oil fume that is not discharged in time is easy to accumulate and dirty the kitchen, causing pollution, and it also brings great difficulties to the cleaning work of the kitchen. At present, range hoods are mostly used in the kitchen to remove kitchen fumes. The surface is made of stainless steel. After long-term absorptio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00C09D5/16C09D7/12
CPCC09D1/00C09D5/1687
Inventor 谢晓峰吕娜王焱陆冠宏
Owner JIANGSU ANNATAI ENVIRONMENTAL PROTECTION TECH CO LTD
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