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High temperature resistant coating and preparation method thereof

A technology of high temperature resistance and coating, applied in fireproof coatings, epoxy resin coatings, coatings, etc., can solve the problems of poor corrosion resistance, easy cracking, and poor heat and cold resistance of the paint film, and achieve high heat resistance. Effect

Inactive Publication Date: 2017-06-16
徐丹峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there are many reports on heat-resistant coatings, and the temperature resistance of existing high-temperature-resistant coatings can basically meet the requirements for use, but there are some shortcomings.
For example, the paint film has poor adhesion, the paint film is not resistant to alternating cold and heat, it is easy to crack, and the corrosion resistance is poor at high temperatures.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A high temperature resistant coating provided in this example, the weight ratio of each component is 20 parts of acrylic modified epoxy resin, 25 parts of ethyl acetate, 3 parts of nano-cuprous oxide, 5 parts of nano-alumina, accelerator 2 parts, 2 parts of leveling agent, 3 parts of pigment, 9 parts of filler, 1 part of rare earth and 2 parts of metal cobalt.

[0016] The rare earth is neodymium. The pigment is titanium dioxide, and the filler is barium sulfate. The leveling agent is urea-formaldehyde resin.

[0017] A method for preparing a high-temperature-resistant coating. Firstly, the above-mentioned raw materials are formulated by weight, and then a good amount of acrylic modified epoxy resin and ethyl acetate are put into a reaction kettle, and the temperature is raised to 90-100°C. Insulate and stir for 60 minutes, then add nano-cuprous oxide, nano-alumina, accelerators, leveling agents, pigments and fillers, rare earths and metallic cobalt, stir at a constan...

Embodiment 2

[0020] A kind of high temperature resistant coating provided in this example, the weight ratio of each component is 40 parts of acrylic modified epoxy resin, 40 parts of ethyl acetate, 5 parts of nano-cuprous oxide, 10 parts of nano-alumina, accelerator 5 parts, 3 parts of leveling agent, 5 parts of pigment, 15 parts of filler, 2 parts of rare earth and 4 parts of metal cobalt.

[0021] The rare earth is samarium. The pigment is iron oxide, and the filler is barite powder. The leveling agent is urea-formaldehyde resin. In addition, the preparation method of using the above-mentioned raw materials to prepare a high-temperature-resistant coating in this embodiment is the same as that in Embodiment 1.

[0022] Coat the high-temperature-resistant coating prepared in this example on a thin steel plate, put it in a muffle furnace after solidification, raise the temperature to 750°C, take it out after standing for 6 hours, and cool it to room temperature. crack situation.

Embodiment 3

[0024] A kind of high temperature resistant coating provided in this example, the weight ratio of each component is 30 parts of acrylic modified epoxy resin, 30 parts of ethyl acetate, 5 parts of nano-cuprous oxide, 8 parts of nano-alumina, accelerator 5 parts, 2 parts of leveling agent, 4 parts of pigment, 12 parts of filler, 2 parts of rare earth and 4 parts of metal cobalt.

[0025] The rare earth is europium. The pigment can be mixed into the desired color by using the three primary colors of red, yellow and blue according to the user's needs, and the filler is barite powder. The leveling agent is urea-formaldehyde resin. In addition, the preparation method of using the above-mentioned raw materials to prepare a high-temperature-resistant coating in this embodiment is the same as that in Embodiment 1.

[0026] Coat the high-temperature-resistant coating prepared in this example on a thin steel plate, put it in a muffle furnace after solidification, raise the temperature ...

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PUM

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Abstract

The invention discloses a high temperature resistant coating. The coating comprises, by weight, 20-40 parts of acrylic acid modified epoxy resin, 25-40 parts of ethyl acetate, 3-5 parts of nanometer cuprous oxide, 5-10 parts of nano-alumina, 2-5 parts of a promoter, 2-3 parts of a leveling agent, 10-20 parts of a pigment and a filler, 1-2 parts of a rare earth and 2-4 parts of metallic cobalt, wherein a weight ratio of the rare earth to the metallic cobalt is 1:2, and a weight ratio of the pigment to the filler is 1:3. The high temperature resistant coating obtained in the invention has high heatproof property; and a test result shows that the high temperature resistant coating can work at a high temperature for a long term, the surface of a thin steel plate coated with the high temperature resistant coating, cured in a 750 DEG C environment, has no film shedding or cracking phenomenon.

Description

technical field [0001] The invention relates to a high temperature resistant coating and a preparation method. Background technique [0002] With the rapid development of modern industry, the requirements for high-temperature-resistant coatings for equipment are getting higher and higher. It is required that the paint film does not change color or fall off at high temperatures, and can still maintain good physical and mechanical properties and anti-corrosion properties. [0003] High-temperature resistant coatings are widely used in high-temperature places such as steel chimneys, high-temperature pipes, high-temperature furnace shells, petroleum cracking devices, tanks, and artillery, to delay the thermal hydrogenation corrosion of metal equipment such as steel at high temperatures, and ensure long-term use of equipment. [0004] At present, there are many reports on heat-resistant coatings, and the heat-resistant properties of existing high-temperature-resistant coatings ca...

Claims

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Application Information

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IPC IPC(8): C09D163/10C09D7/12
CPCC09D163/10C08K2201/011C08L2201/08C09D5/18C09D7/61C09D7/65
Inventor 徐丹峰
Owner 徐丹峰