Magnesium-based inorganic heat insulation coating and preparation method thereof

A thermal insulation coating and inorganic technology, applied in the field of magnesium-based inorganic thermal insulation coatings and their preparation, can solve the problems of corrosion of inorganic thermal insulation coatings and limited application fields, and achieve the effects of convenient packaging and cost reduction.

Active Publication Date: 2015-07-22
SHENZHEN CHAMELEON NEW BUILDING MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a magnesium-based inorganic heat-insulating coating and its preparation method, aiming to solve the problem that the inorganic heat-insulating coating is corrosive to steel and has limited application fields

Method used

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  • Magnesium-based inorganic heat insulation coating and preparation method thereof

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Comparison scheme
Effect test

Embodiment 1

[0049] Take 0.35 parts of activated magnesium oxide and 0.035 parts of titanium dioxide and mix them evenly to prepare component A; take 0.15 parts of magnesium sulfate and 0.0018 parts of potassium dihydrogen phosphate and dissolve them in 0.46 parts of water to prepare component B.

[0050] Mix component A and component B, stir evenly, and spray on a 20×20×6mm fiber cement board, the surface drying time is 35min, and the coating thickness is 0.5mm. After the coating is cured, the storage stability, scrub resistance, water resistance, alkali resistance, temperature change resistance and artificial aging resistance are all qualified according to JG / T 26-2002. according to figure 1 In the shown device, after being irradiated with infrared light for 90 minutes, the measured temperature of the lower surface of the fiber cement board is 53.0°C; under the same conditions, the temperature of the lower surface of the uncoated fiber cement board is 74.4°C.

Embodiment 2

[0052] Take 0.24 parts of activated magnesium oxide and 0.024 parts of functional materials (0.014 parts of hollow glass microspheres and 0.01 parts of lithopone), mix well, and prepare component A; take 0.14 parts of magnesium sulfate and 0.0012 parts of phosphoric acid and dissolve them in 0.60 parts of water to prepare B component.

[0053] Mix component A and component B, stir evenly, and spray on a 20×20×6mm fiber cement board, the surface drying time is 30min, and the coating thickness is 0.5mm. After the coating is cured, the storage stability, scrub resistance, water resistance, alkali resistance, temperature change resistance and artificial aging resistance are all qualified according to JG / T 26-2002. according to figure 1 In the device shown, after irradiating with infrared light for 90 minutes, the temperature of the lower surface of the fiber cement board was measured to be 56.7°C.

Embodiment 3

[0055] Take 0.19 parts of activated magnesium oxide, 0.19 parts of functional materials (0.05 parts of hollow ceramic microspheres, 0.05 parts of hollow glass microspheres, 0.05 parts of titanium dioxide, 0.048 parts of lithopone and 0.001 parts of iron oxide black pigment) and 0.0009 parts of citric acid, Mix evenly to prepare component A; dissolve 0.048 parts of magnesium sulfate in 0.57 parts of water to prepare component B.

[0056] Mix component A and component B, stir evenly, and spray on a 20×20×6mm fiber cement board, the surface drying time is 32min, and the coating thickness is 0.5mm. After the coating is cured, the storage stability, scrub resistance, water resistance, alkali resistance, temperature change resistance and artificial aging resistance are all qualified according to JG / T 26-2002. according to figure 1 In the device shown, after irradiating with infrared light for 90 minutes, the temperature of the lower surface of the fiber cement board was measured to...

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Abstract

The invention discloses a magnesium-based inorganic heat insulation coating and a preparation method thereof. The magnesium-based inorganic heat insulation coating comprises a cementing material, a functional material and a modifier. The cementing material provided in the embodiment of the invention does not contain Cl<->, and a heat insulation coating layer made by using the coating does not corrode steel bar parts in the service process. The coating is characterized in that solid components of the coating can be produced in a factory only, and a required component can be obtained through taking tap water in proportion in the construction field. The preparation method is convenient for packaging, transporting and storing the coating, and reduces the cost of relevant production, storage and transportation links.

Description

technical field [0001] The invention relates to the field of heat-insulating coatings, in particular to a magnesium-based inorganic heat-insulating coating using magnesium oxysulfide gelling material as a cementing material and a preparation method thereof. Background technique [0002] Solar radiation is the main source of heat for the earth. Homes above ground, storage containers such as oil storage tanks and containers, and large civil engineering structures such as bridges and high-speed rail track slabs heat up internally when exposed to solar radiation. The rise of the internal temperature of the house will reduce people's living comfort; the rise of the internal temperature of the storage container will accelerate or lead to the loss or deterioration of the storage, and even a safety hazard; large civil engineering structures will generate temperature inside the structure after being irradiated by the sun. Strain, causing structural deformation, leading to structural...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/30
Inventor 李宗津李颖许碧莞陆有源沈震远
Owner SHENZHEN CHAMELEON NEW BUILDING MATERIALS CO LTD
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