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A kind of high temperature nanocomposite coating and preparation method thereof, and small bag flexible packaging coating

A nano-composite and coating technology, applied in the direction of fireproof coatings, coatings, etc., can solve the problems of unable to meet the protection of full-fiber furnace lining, cannot resist the scouring force of cracking furnace, and the coating has no delicate feeling, so as to resist the erosion of airflow and atmosphere , rich particle size gradation, and strong permeability

Active Publication Date: 2022-07-19
LUYANG ENERGY SAVING MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The high-temperature mechanical properties of the existing high-temperature-resistant coatings are still not good when used on ethylene cracking furnaces, and cannot resist the super-strong scour force of the cracking furnace, and cannot meet the purpose of protecting the full-fiber furnace lining from the harsh environment in the furnace
Moreover, because it is a high-temperature-resistant material, inorganic high-temperature-resistant powder fillers or fibers are often used, and the paint does not have a delicate feeling. Therefore, after a period of time, the paint in the small bag of flexible packaging will precipitate, and a layer of liquid will be separated. Use a glue gun for construction When the liquid comes out quickly, only dry long fibers and granular powder are left, which are difficult to squeeze out with a glue gun, such as figure 1 as shown, figure 1 It is a schematic diagram of the slurry state of the existing high temperature resistant coating after being placed for a period of time

Method used

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  • A kind of high temperature nanocomposite coating and preparation method thereof, and small bag flexible packaging coating
  • A kind of high temperature nanocomposite coating and preparation method thereof, and small bag flexible packaging coating
  • A kind of high temperature nanocomposite coating and preparation method thereof, and small bag flexible packaging coating

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preparation example Construction

[0048] The present invention also provides a preparation method of the high-temperature nanocomposite coating described in the above technical scheme, which is characterized in that, comprising:

[0049] S1. Mix high temperature resistant inorganic fibers, inorganic binders and water to obtain a fiber dispersion;

[0050] S2, mixing the fiber dispersion with high temperature expansion filler, reinforcing filler and skeleton filler to obtain slurry;

[0051] S3, mixing the slurry with nano-powder, inorganic suspending agent and organic additive to obtain a coating.

[0052] Wherein, in step S1, the mixing is preferably stirring and mixing; the stirring time is preferably 10-30 min. In the step S2, the mixing is preferably stirring and mixing; the stirring time is preferably 3-5 min. In the step S3, the mixing sequence is preferably as follows: firstly adding the nano powder to the slurry, stirring and mixing for 3-5 minutes; then adding an inorganic suspending agent, stirring...

Embodiment 1

[0071] 1.1 Coating formulation

[0072]

[0073] Among them, the raw material fiber of the high temperature resistant inorganic fiber is high alumina fiber, which is processed into short fiber, and the length of the obtained fiber is 0.01-1 mm and the diameter is 1-5um.

[0074] 1.2 Preparation

[0075] Weigh the high temperature resistant inorganic fibers into the mixer, weigh the inorganic binder and water, and stir for 20 minutes to fully wet and disperse the fibers; then add high temperature expansion fillers, reinforcing fillers, and skeleton fillers in sequence, and stir for 5 minutes after adding to make them fully Disperse; then add nano powder and stir for 5 minutes; add inorganic suspending agent and stir for 10 minutes to fully expand and play a suspending effect; finally add organic additives and stir for 20 minutes to obtain a coating.

Embodiment 2

[0077] 1.1 Coating formulation

[0078]

[0079] Wherein, the raw material fibers of the high temperature resistant inorganic fibers are zirconium-containing fibers, which are processed into short fibers, and the obtained fibers have a length of 0.01-1 mm and a diameter of 2-6 um.

[0080] 1.2 Preparation: Same as Example 1.

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PUM

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Abstract

The invention provides a high-temperature nano-composite coating and a preparation method thereof, and a small bag flexible packaging coating. The high-temperature nano-composite coating provided by the invention controls the fiber length, and introduces high-temperature reinforcing filler and high-temperature expansion filler at the same time, so that it has ultra-high strength at high temperature without high-temperature shrinkage and cracks; meanwhile, nano-powder and high-temperature skeleton are introduced. Fillers and other additives make the state of the coating uniform and stable, and achieve a slurry state similar to toothpaste. There will be no precipitation and stratification during the placement process, and a small packaging method can be realized, which is convenient for construction operations; It falls off with the furnace lining, thereby prolonging the service life of the furnace lining.

Description

technical field [0001] The invention relates to the field of high-temperature furnace coatings, in particular to a high-temperature nanocomposite coating and a preparation method thereof, and a small bag flexible packaging coating. Background technique [0002] The ethylene cracking furnace in the petrochemical industry, especially the bottom three meters, has a high operating temperature, including bottom burning, side burning and top burning burners, air scouring and the influence of atmosphere, which requires extremely high lining strength, so brick walls have been used in this part Although the brick wall structure can resist the air flow and the erosion of the atmosphere, due to its high thermal conductivity and poor thermal shock resistance, the temperature of the outer wall of the furnace is high, and it is also easy to break and fall. [0003] As the country has higher and higher requirements for environmental protection, in order to improve energy efficiency and pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D1/00C09D7/61C09D7/63
CPCC09D1/00C09D5/18C09D7/61C09D7/63C09D7/70C08K7/08C08K3/013C08K5/0058C04B28/24C04B28/005C04B2111/00482C04B35/66C04B35/62222C04B2235/96C04B2235/9615C04B2235/5454C04B2235/526C04B2235/5224C04B2235/5236C04B2235/5264C04B2235/3418C04B2235/349C04B2235/3463C04B2235/5436C04B2235/3217C04B2235/3248C04B2235/3218C04B2235/447C04B2235/608Y02P20/10C04B14/041C04B14/06C04B14/104C04B14/303C04B14/4625C04B14/4637C04B20/0076C04B20/008C04B24/26C04B2103/601C04B2103/67B82Y30/00
Inventor 鹿成洪许妹华郑维金岳耀辉任德利鹿明
Owner LUYANG ENERGY SAVING MATERIALS CO LTD
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