A kind of preparation method of high temperature resistant coating with self-cleaning performance

A high-temperature resistant coating and self-cleaning technology, applied in fire-resistant coatings, coatings and other directions, can solve the problems of high price of inorganic pigments, complex preparation process, high price, etc., and achieve strong operability of the preparation process, simple preparation method, and high production efficiency. Simple process effect

Active Publication Date: 2021-06-29
西北永新涂料有限公司 +1
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  • Abstract
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  • Claims
  • Application Information

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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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  • A kind of preparation method of high temperature resistant coating with self-cleaning performance
  • A kind of preparation method of high temperature resistant coating with self-cleaning performance
  • A kind of preparation method of high temperature resistant coating with self-cleaning performance

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Experimental program
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Effect test

Embodiment 1

[0033] ① Preparation of cobalt blue hybrid pigment: Accurately weigh 109 g of kaolinite, 81 g of cobalt trioxide, and 102 g of aluminum oxide and mix them evenly. Blue cobalt blue hybrid pigment, 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-resistant self-cleanin...

Embodiment 2

[0037] ①Preparation of cobalt blue hybrid pigment: Accurately weigh 40.5g of halloysite, 81g of dicobalt trioxide, and 204g of aluminum oxide and mix them evenly. Blue cobalt blue hybrid pigment, 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-resistant self-cleaning coat...

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 paint with self-cleaning performance, belonging to the technical field of chemical industry. In the present invention, the superhydrophobic modified cobalt blue pigment is used as the colorant, and the silicone resin is used as the film-forming material. , After calcination at 800°C, the surface of the coating film becomes hydrophilic, but the surface of the coating film is complete and smooth, which can be used as a heat-resistant 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 Patents(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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