Infrared energy-saving coating material and applications thereof

A technology for energy-saving coatings and energy-saving materials, applied in coatings, sustainable manufacturing/processing, chemical industry, etc., can solve the problems of low infrared emissivity, long-term stable service, etc., achieve simple preparation process, realize industrial production, The effect of easy access to raw materials

Inactive Publication Date: 2015-10-21
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The purpose of the present invention is to overcome the problem that the infrared emissivity of the existing infrared energy-saving materials is low or cannot serve stably for a long time in an oxidizing atmosphere at high temperature, and provides an infrared energy-saving coating and its application, which realizes the improvement of the infrared energy-saving coating. The target of infrared emissivity, and the infrared energy-saving coating can be used stably for a long time in an oxidizing atmosphere at high temperature

Method used

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  • Infrared energy-saving coating material and applications thereof
  • Infrared energy-saving coating material and applications thereof
  • Infrared energy-saving coating material and applications thereof

Examples

Experimental program
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Embodiment 1

[0034] Mix and grind lanthanum hydroxide, aluminum oxide, calcium carbonate, and chromium oxide in a molar ratio of 1:1:0.1:0.25, and calcinate the ground mixed raw material powder in an air atmosphere at 1600°C for 360 minutes to cause high-temperature solidification. In contrast, the powder of the high-emissivity infrared energy-saving material is finally prepared. The infrared emissivity of the high-emissivity infrared energy-saving material is 0.95 and the average particle size is 12 μm.

[0035] From figure 1 It can be seen that the phase of the high-emissivity infrared energy-saving material in this embodiment is lanthanum aluminate (LaAlO) with a perovskite structure. 3 ); no other impurity phases were observed, indicating that calcium, chromium and other components have been solid-dissolved into the lattice of lanthanum aluminate, forming a calcium- and chromium-doped lanthanum aluminate-based ceramic material.

[0036] From figure 2 It can be seen that the synthesi...

Embodiment 2

[0040] Mix and grind lanthanum oxide, aluminum oxide, calcium oxide, and chromium oxide in a molar ratio of 1:1:0.01:0.02, and calcinate the ground mixed raw material powder in an air atmosphere at 1200°C for 300 minutes to generate a high-temperature solid phase reaction, and finally prepare the powder of the high-emissivity infrared energy-saving material, the infrared emissivity of the high-emissivity infrared energy-saving material is 0.80, and the average particle size is 3 μm.

Embodiment 3

[0042] Mix and grind lanthanum oxide, aluminum hydroxide, calcium carbonate, and iron oxide in a molar ratio of 1:1:0.25:0.5, and calcinate the ground mixed raw material powder in an air atmosphere at 1400°C for 300 minutes to cause high-temperature solidification. On the contrary, the powder of the high-emissivity infrared energy-saving material is finally prepared. The infrared emissivity of the high-emissivity infrared energy-saving material is 0.92 and the average particle size is 4 μm.

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Abstract

The present invention provides an infrared energy-saving coating material and applications thereof, and belongs to the technical field of infrared energy-saving materials, wherein a high-emissivity infrared energy-saving material is adopted as a core component, and a dispersant accounting for 3-5% of the mass of the infrared energy-saving coating material, a liquid binder accounting for 10-50% of the mass of the infrared energy-saving coating material, and a stabilizer accounting for 2-5% of the mass of the infrared energy-saving coating material are added to prepare the infrared energy-saving coating material, wherein the high-emissivity infrared energy-saving material adopts lanthanum aluminate of the perovskite structure as a main phase, 0.01-0.25 mole of second main group element ions is doped at the lanthanum site, and 0.02-0.5 mole of transition metal element ions is doped at the aluminum site. According to the present invention, the highest emissivity of the prepared infrared energy-saving coating material can achieve 0.95, and the prepared infrared energy-saving coating material has good high temperature stability, and has great application potential in the high temperature thermal industry furnace kiln energy saving field.

Description

technical field [0001] The invention relates to the technical field of infrared energy-saving materials, and more specifically relates to an infrared energy-saving coating and its application. Background technique [0002] Thermal furnaces are widely used in high-energy-consuming industries such as steel, petrochemicals, cement and refractory materials. According to the statistics of the National Energy Conservation Center, the annual energy consumption of thermal furnaces in my country accounts for more than 20% of the country's total annual energy consumption. However, the average thermal efficiency of thermal furnaces in my country is only 30%, which is far lower than that of thermal furnaces in developed countries, which has reached an average of 50%. Therefore, vigorously improving the thermal efficiency of thermal furnaces is a major problem facing the related industries of thermal furnaces in my country. [0003] Infrared energy-saving materials are a new type of mat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D7/12
CPCC09D7/61Y02P20/10
Inventor 韩召李小伟童碧海韦国静卢卫华
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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