High near-infrared reflectivity nano-ceramic pigment and preparation method thereof

A nano-ceramic, infrared reflection technology, applied in the direction of inorganic pigment treatment, chemical instruments and methods, fibrous fillers, etc., to achieve the effect of small concentration, increase reflectivity, and reduce absorption

Inactive Publication Date: 2012-09-12
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There is still a big gap between domestic and foreign countries in the preparation

Method used

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  • High near-infrared reflectivity nano-ceramic pigment and preparation method thereof
  • High near-infrared reflectivity nano-ceramic pigment and preparation method thereof
  • High near-infrared reflectivity nano-ceramic pigment and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The raw material components of the high near-infrared reflection nano-ceramic pigment are as follows: 55 parts of yttrium oxide, 30 parts of neodymium oxide, and 15 parts of molybdenum oxide.

[0042] The preparation method steps are as follows:

[0043]1. According to the proportion, the powders of yttrium oxide, neodymium oxide and molybdenum oxide were mixed by ball milling for 30 minutes with absolute ethanol as solvent; the slurry mixed by ball milling was dried under vacuum condition at 60°C to obtain mixed powder.

[0044] 2. The above-mentioned mixed powder is calcined in a heating furnace under an air atmosphere without pressure, and when the temperature is raised to the highest calcining temperature of 1600°C, it is kept for 60 minutes; naturally cooled. Routine selections can be made by those skilled in the art.

[0045] 3. Crushing and sieving the calcined product obtained after the above calcining to obtain pigment powder.

[0046] The properties of the o...

Embodiment 2

[0048] The raw material components of the high near-infrared reflection nano-ceramic pigment are as follows: 60 parts of yttrium oxide, 25 parts of neodymium oxide, and 15 parts of molybdenum oxide.

[0049] The preparation method steps are as follows:

[0050] 1. According to the proportion, the powders of yttrium oxide, neodymium oxide and molybdenum oxide were mixed by ball milling for 35 minutes with absolute ethanol as solvent; the slurry mixed by ball milling was dried under vacuum condition at 70°C to obtain mixed powder.

[0051] 2. The above-mentioned mixed powder is calcined in a heating furnace under an air atmosphere without pressure, and when the temperature is raised to the highest calcining temperature of 1400°C, it is kept for 150 minutes; naturally cooled. Routine selections can be made by those skilled in the art.

[0052] 3. Crushing and sieving the calcined product obtained after the above calcining to obtain pigment powder.

[0053] The properties of the...

Embodiment 3

[0055] The raw material components of the high near-infrared reflection nano-ceramic pigment are as follows: 65 parts of yttrium oxide, 20 parts of neodymium oxide, and 15 parts of molybdenum oxide.

[0056] The preparation method steps are as follows:

[0057] 1. According to the proportion, the powders of yttrium oxide, neodymium oxide and molybdenum oxide were mixed by ball milling for 40 minutes with absolute ethanol as solvent; the slurry mixed by ball milling was dried under vacuum condition at 70°C to obtain mixed powder.

[0058] 2. The above-mentioned mixed powder is calcined in a heating furnace under an air atmosphere without pressure, and when the temperature is raised to the highest calcining temperature of 1500 ° C, it is kept for 180 min; naturally cooled. Routine selections can be made by those skilled in the art.

[0059] 3. Crushing and sieving the calcined product obtained after the above calcining to obtain pigment powder.

[0060] The properties of the o...

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Abstract

The invention discloses high near-infrared reflectivity nano-ceramic pigment and preparation method thereof. The preparation method includes the steps of using absolute ethyl alcohol as solvent to ball-mill and mix powders of yttrium oxide, neodymium oxide and molybdenum oxide for 30-40 minutes; drying slurry obtained by ball-milling and mixing at 50-80 DEG C under vacuum condition to obtain mixed powder; subjecting the mixed powder to non-pressure calcining in a heating furnace in the presence of air, and holding the temperature which rises to the highest calcining temperature of 1400-1600 DEG C for 60-180 minutes; allowing for natural cooling; and crushing and screening product of calcining to obtain pigment powder. By weight, the materials include 55-65 parts of yttrium oxide, 20-30 parts of neodymium oxide, and 15 parts of molybdenum oxide. The high near-infrared reflectivity nano-ceramic pigment has high near-infrared band reflectivity, is light yellow, and has d50 smaller than or equal to 200nm. The high near-infrared reflectivity nano-ceramic pigment can be used as ideal materials for military near-infrared stealth, house cooling, vehicle casing cooling coating, cooling coating of other casings and the like.

Description

technical field [0001] The invention belongs to the technical field of new materials, and relates to a high near-infrared reflection nano-ceramic pigment and a preparation method thereof. Background technique [0002] Sunlight not only brings benefits to human beings, but also brings many negative and even destructive effects to human life. The heat energy received by the roof and wall of the house raises the indoor temperature in various ways, which makes people use a lot of air conditioners, air conditioners and other equipment to reduce the temperature, which consumes a lot of energy. Some chemical containers and open-air reaction kettles are exposed to direct sunlight in hot summer, the surface temperature rises, and the temperature of the liquid in the tank rises accordingly, which brings danger. High temperature also accelerates the corrosion, aging and degradation process of materials, reduces the service life of materials, and limits the application of certain mater...

Claims

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Application Information

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IPC IPC(8): C04B35/505C04B35/626C09C1/00C09C3/06
Inventor 张玉军谭砂砾张潇予龚红宇赵玉军赵新巧
Owner SHANDONG UNIV
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