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Nano ceramic high-temperature-resistant thermal-insulation coating, and its preparing method and use

A technology of thermal insulation coatings and nano-ceramics, applied in the direction of fireproof coatings, coatings, etc., can solve problems such as high production costs, difficult construction, and increased weight

Inactive Publication Date: 2007-03-28
王继征
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to solve the problem of waterproofing, the traditional method is to put a steel pipe on the outside of the insulation material, which is called "steel jacket steel". The diameter is 1.12m. The most direct consequence is that the cost has increased significantly, resulting in high production costs, increased weight, and difficulty in construction.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1. Weigh each raw material according to the following weight ratio:

[0027] Raw material ratio (unit: kg)

[0028] 1. Polyacrylamide 4

[0029] 2. Sodium metasilicate pentahydrate 8

[0030] 3. Aluminum silicate wool 15

[0031] 4. Perlite 40

[0032] 5. Sodium tripolyphosphate 1

[0033] 6. Wollastonite 20

[0034] 7. Ceramic microspheres 10

[0035] 8. Nano zinc oxide 5

[0036] 9. D3007 0.2

[0037] 2. Stir D3007 with water at room temperature (25°C) to completely dissolve, add nano-zinc oxide, stir at 2000rpm for 35 minutes, stand still for 1 hour, then dehydrate and dry, and grind into fine powder (as for the particle size of the fine powder, this is not relevant to the present invention. The implementation constitutes influence), obtains modified nano-zinc oxide for subsequent use;

[0038] 3. Add modified nano-zinc oxide, polyacrylamide, sodium metasilicate pentahydrate, aluminum silicate wool, perlite, sodium tripolyphosphate and wollastonite into the ...

Embodiment 2

[0041] 1. Weigh each raw material according to the following weight ratio:

[0042] Raw material ratio (unit: kg)

[0043] 1. Polyacrylamide 4

[0044] 2. Sodium silicate pentahydrate 8

[0045] 3. Aluminum silicate wool 15

[0046] 4. Sepiolite 20

[0047] 5. Perlite 10

[0048] 6. Sodium tripolyphosphate 1

[0049] 7. Hollow ceramic microspheres 40

[0050] 8. Nano zinc oxide 5

[0051] 9. D3007 0.2

[0052] 2. Add water and stir D3007 at room temperature (20°C) to completely dissolve, add nano-zinc oxide, stir at 2500rpm for 40 minutes, let stand for 2 hours, then dehydrate and dry, grind into powder, and obtain modified nano-zinc oxide for later use;

[0053] 3. Add modified nano-zinc oxide, polyacrylamide, sodium metasilicate pentahydrate, aluminum silicate wool, perlite, sodium tripolyphosphate and wollastonite into the mixer and stir at 2500rpm for 30 minutes;

[0054] 4. Add ceramic microspheres, stir at 800rpm until uniform, and pack.

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Abstract

The invention discloses new nanometer ceramic high temperature resistant heat preservation paint and the preparing method and use. Its components part by weight are as follows: film forming matter 10-35, filling 50-75, ceramic micro-balloon 8-50, and modified nanometer material 3-12. The produced nanometer ceramic high temperature resistant heat preservation paint can prevent solid heat transfer and radiant heat transfer, thus it can greatly improve heat preservation effect. And its high temperature resistant can reach 1000 degree centigrade.

Description

technical field [0001] The invention relates to a coating, in particular to a nano-ceramic high-temperature-resistant thermal insulation coating and a preparation method thereof, belonging to the field of thermal insulation materials. Background technique [0002] Traditional thermal insulation materials are mostly porous loose materials, such as rock wool, glass wool, perlite, polyurethane foam, light calcium carbonate, etc. These materials block the movement of heated molecules and play a role in thermal insulation. However, heat transfer, in addition to solid heat transfer, also has radiation heat transfer, and radiation heat transfer is not affected by the medium, and the interface does not play a role. The higher the temperature, the stronger the radiation. Therefore, it is not enough to only consider solid heat transfer for heat preservation of high-temperature (200-600°C) heat transfer pipelines. [0003] The state stipulates that the temperature after heat preserva...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D129/04C09D133/26C09D7/12C09D5/18
Inventor 孙启明于洪智曹开玉
Owner 王继征
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