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Preparation method of high-temperature-resistant coating with self-cleaning performance

A high-temperature-resistant coating and self-cleaning technology, which is applied in the direction of fireproof coatings and coatings, can solve the problems of high price of inorganic pigments, complicated preparation process, and high price, and achieve strong operability of the preparation process, simple preparation method, and high production efficiency. The effect of simple process

Active Publication Date: 2020-02-18
西北永新涂料有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current heat-resistant coatings mainly face two problems: one is that the price of the inorganic pigments used is relatively high, which leads to the high price of traditional heat-resistant coatings; the other is that the traditional heat-resistant coatings are hydrophilic, and the coating surface susceptible to contamination
However, the currently prepared materials are all used as a coating instead of a superhydrophobic coating. The prepared coating has poor mechanical properties, poor heat resistance, and the preparation process is relatively complicated and expensive, making it difficult to carry out large-scale applications. use of scale
[0004] To prepare hydrophobic coatings with good mechanical properties, fluorocarbon resins with superhydrophobic properties are generally selected, and pigments, fillers, additives, etc. are added to prepare hydrophobic coatings, but the hydrophobic coatings prepared by this method have low contact angles (contact angleo ), does not have self-cleaning properties, so it is necessary to develop a superhydrophobic coating with relatively simple process, low price and high contact angle

Method used

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  • Preparation method of high-temperature-resistant coating with self-cleaning performance
  • Preparation method of high-temperature-resistant coating with self-cleaning performance
  • Preparation method of high-temperature-resistant coating with self-cleaning performance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] ①Preparation of cobalt blue hybrid pigment: Accurately weigh 109 g of kaolinite, 81 g of dicobalt oxide, and 102 g of aluminum oxide and mix them evenly. A blue cobalt blue hybrid pigment is obtained, and the sample number is S0.

[0034] ②Preparation of superhydrophobic hybrid pigments: Disperse 5 g of the prepared cobalt blue kaolinite hybrid pigments in 50 mL of ethanol, add 0.5 g monoethanolamine solution, 0.5 g water, 0.5 g dodecyltriethoxy Silane and stirred evenly, after reacting for 8 hours, the superhydrophobic modified cobalt blue kaolinite hybrid pigment was prepared;

[0035] ③Preparation of superhydrophobic heat-resistant coating: In a certain container, add 60g of silicone resin 9801, 10g of modified cobalt blue hybrid pigment, 10g of ceramic powder, 14g of glass fiber and other pigments and fillers, stir for a certain period of time, then add 5g Leveling agent (BYK333), 1g defoamer (BYK024), adjust viscosity, place for aging, spray board, prepare heat-re...

Embodiment 2

[0037] ①Preparation of cobalt blue hybrid pigment: Accurately weigh 40.5 g of halloysite, 81 g of dicobalt trioxide, and 204 g of aluminum oxide and mix them evenly. A blue cobalt blue hybrid pigment is obtained, and the sample number is S1.

[0038] ②Preparation of superhydrophobic hybrid pigment: Disperse 5 g of cobalt blue halloysite hybrid pigment in 10 mL of ethanol, add 2.5 g of diethanolamine solution, 2.5 g of water, 2.5 g of dodecyltriethoxy Silane and stirred evenly, after reacting for 12 hours, a superhydrophobic modified cobalt blue halloysite hybrid pigment was prepared;

[0039] ③Preparation of superhydrophobic heat-resistant coating: In a certain container, add 40g of silicone resin 9801, 15g of modified cobalt blue hybrid pigment, 15g of ceramic powder, 25g of glass fiber and other pigments and fillers, stir for a certain period of time, then add 4 g Leveling agent (BYK333), 1g defoamer (BYK024), adjust viscosity, place for aging, spray board, prepare heat-res...

Embodiment 3

[0041] ①Preparation of cobalt blue hybrid pigment: Accurately weigh 81 g of kaolinite, 81 g of tricobalt tetroxide, and 51 g of aluminum oxide and mix evenly. Cobalt blue hybrid pigment, sample number is S2.

[0042] ②Preparation of superhydrophobic hybrid pigments: Disperse 5 g of the prepared cobalt blue kaolinite hybrid pigments in 30 mL of ethanol, add 1 g of triethanolamine solution, 1 g of water, and 1.5 g of hexadecyltriethoxysilane And stir evenly, after reacting for 16 hours, a superhydrophobic modified cobalt blue kaolinite hybrid pigment is prepared;

[0043] ③Preparation of superhydrophobic heat-resistant coating: In a certain container, add 60g of silicone resin 9801, 5g of modified cobalt blue hybrid pigment, 10g of ceramic powder, 22g of glass fiber and other pigments and fillers, stir for a certain period of time, then add 1g Leveling agent (BYK333), 2g defoamer (BYK024), adjust viscosity, place for aging, spray board, prepare heat-resistant self-cleaning coat...

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Abstract

The invention provides a preparation method of a high-temperature-resistant coating with a self-cleaning performance, and belongs to the technical field of chemical engineering. The high-temperature-resistant coating with the self-cleaning performance is prepared by spraying through taking a superhydrophobic modified cobalt blue pigment as a coloring agent and silicone resin as a film-forming substance. The prepared coating also has superhydrophobic performance after being calcined at 380 DEG C for 2 h; and after the coating is calcined at 800 DEG C, a film formed by the coating becomes hydrophilic, but the surface of the film is complete and smooth, so the coating can be used as a heatproof coating.

Description

technical field [0001] The invention provides a preparation method of a high-temperature resistant coating with self-cleaning performance, which belongs to the technical field of chemical industry. Background technique [0002] Traditional heat-resistant coatings are widely used in high-temperature environments, mainly to protect the substrate. The coatings are required to have good thermal stability, and the heat-resistant temperature is basically 350-800 °C. However, the current heat-resistant coatings mainly face two problems: one is that the price of the inorganic pigments used is relatively high, which leads to the high price of traditional heat-resistant coatings; the other is that the traditional heat-resistant coatings are hydrophilic, and the coating surface susceptible to contamination. Therefore, it is necessary to develop a heat-resistant coating with self-cleaning function and low price. [0003] Common preparation methods for superhydrophobic materials includ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/04C09D7/62
CPCC08K2003/2289C09D5/18C09D183/04C09D7/62C08K9/06C08K3/34C08K3/22
Inventor 张安杰牟斌王爱勤李华明曾慧崇王乃迪陶雯齐彦兴文立新
Owner 西北永新涂料有限公司
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