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High-performance hydrophilic dust-nonstick coating and preparation method thereof

A high-performance, dust-sticking technology, applied in coatings, analytical materials, material inspection products, etc., can solve the problems of low photocatalytic efficiency, short duration of non-stick layer, and poor non-stick effect of coating. The effect of enhancing photocatalysis, improving the hydrophilicity of the coating, and improving the non-stick dust performance

Active Publication Date: 2019-09-17
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because nano-titanium dioxide can only absorb ultraviolet light, the utilization rate of sunlight is less than 5%, and the photocatalytic efficiency is low, resulting in poor non-stick dust effect of the coating and short duration of the non-stick layer.

Method used

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  • High-performance hydrophilic dust-nonstick coating and preparation method thereof
  • High-performance hydrophilic dust-nonstick coating and preparation method thereof
  • High-performance hydrophilic dust-nonstick coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A high-performance hydrophilic non-stick coating formulation:

[0039] Table 1 Embodiment 1 formula

[0040]

[0041] A high-performance hydrophilic non-stick dust coating, which is a high-performance non-stick dust hydrophilic coating that can be used on wood, metal and plastic surfaces. In this coating, tetrabutyl titanate is hydrolyzed into titanium sol, which is dispersed in ethanol solution Among them, the preparation process of titanium sol: 75.82 g of absolute ethanol, 1.66 g of tetrabutyl titanate, and 1.3 g of nitric acid were sequentially added into a four-neck flask, and stirred at 70° C. for 1 h to disperse the raw materials evenly. Disperse 4g of deionized water in 15g of absolute ethanol, add dropwise into a four-necked flask, stir and react at 70°C for 3h, control the reaction conditions, and hydrolyze tetrabutyl titanate into a titanium sol with an average particle size of about 150nm .

[0042] After the required titanium sol was obtained, it was t...

Embodiment 2

[0054] A high-performance hydrophilic non-stick coating formulation:

[0055] Table 4 Example 2 formula

[0056]

[0057] Titanium sol preparation process: 76.36 g of absolute ethanol, 1.92 g of isopropyl titanate, and 1.5 g of nitric acid were sequentially added into a four-necked flask, and stirred at 70° C. for 1 h to disperse the raw materials evenly. Disperse 4g of deionized water in 15g of absolute ethanol, add dropwise into a four-neck flask, stir and react at 70°C for 3h, and hydrolyze isopropyl titanate into a titanium sol with an average particle size of about 120nm.

[0058] After the desired titanium sol is prepared, take it out and cool it to room temperature, add 0.12g of tungsten trioxide, 0.5g of acetylacetone, 0.1g of polyether modified silicone DEGO-245 and 0.5g of propylene glycol monomethyl ether, and stir for 1 hour at room temperature , filter package. Coating performance: the appearance is light blue and transparent, the viscosity is about 1mPa.s, a...

Embodiment 3

[0064] A high-performance hydrophilic non-stick coating formulation:

[0065] Table 6 Example 3 formula

[0066]

[0067] The preparation process of titanium sol: Add 75.24 g of absolute ethanol, 1.66 g of tetrabutyl titanate, and 1.5 g of hydrochloric acid in sequence in a four-neck flask, and stir at 70° C. for 1 hour to disperse the raw materials evenly. Disperse 5 g of deionized water in 15 g of absolute ethanol, add it dropwise into a four-necked flask, stir and react at 70° C. for 3 h, and hydrolyze tetrabutyl titanate into a titanium sol with an average particle size of about 150 nm.

[0068] After obtaining the required titanium sol, take it out and cool to room temperature, add 0.2g Zr under stirring. 2 ,0.1gAg 3 P0 4 and 0.2SnW0 4 , 0.2g V 2 o 5 and 0.3gBi 2 S 3 , and added 0.5g diethanolamine, 0.1g polyether modified silicone DC-67 and 0.5g propylene glycol monobutyl ether, stirred at room temperature for 1 hour, filtered and packaged.

[0069] Coating p...

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Abstract

The invention discloses a high-performance hydrophilic dust-nonstick paint and a preparation method thereof. The high-performance hydrophilic dust-nonstick paint comprises the raw material components in percentage by mass: 80-90% of titanium sol, 0.1-8% of nanosized semiconductor material, 0.1-5% of silane coupling agent, 0.1-2% of wetting agent, 0.1-2% of stabilizer and 0.1-5% of film forming additives; the average particle size of the titanium sol is 120-170 nm, and the average particle size of the nanosized semiconductor material is smaller than 50 nm; and if the hydrophilic dust-nonstick paint coats surfaces of woods, metals and plastics, a coating is enabled to have excellent hydrophilcity, the contact angle of the coating and water is low and reaches 13.9 DEG, the coating contains an efficient composite photocatalyst, the dust-nonstick property of the coating is improved to 91%, and the dust-nonstick time is longer than half a year at least.

Description

technical field [0001] The invention relates to the technical field of non-stick dust coatings, in particular to a high-efficiency non-stick dust hydrophilic coating for wood, metal and plastic surfaces and its preparation method and application. Background technique [0002] With the improvement of people's living standards, more and more special functional requirements are put forward for wood, metal and plastic surfaces, such as non-stick function. In daily life, due to air dust pollution, the concentration of PM2.5 in the atmospheric environment remains high, and various dust and dust are often stained on the surface of wood, metal and plastic products, such as industrial pipes, fan blades, or vacuum cleaners, etc. furniture. Removing this dust and dust is laborious and time-consuming, and sometimes extremely inconvenient. The accumulation of dust on the surface of the product not only affects the appearance of the product and causes bacteria to grow, but also signific...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00C09D7/61G01N5/04G01N13/02G01N33/32
CPCC09D1/00C09D7/61G01N33/32G01N5/04G01N13/02G01N2013/0208G01N33/0096
Inventor 瞿金清王磊郑佳蓉
Owner SOUTH CHINA UNIV OF TECH
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