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Bicolor phosphorescent thermopaint

A temperature-measuring coating and phosphorescence technology, applied in the direction of luminous coating, polyester coating, epoxy resin coating, etc., to achieve the effect of low light conditions, simple preparation method and good economic benefits

Active Publication Date: 2012-10-03
CHINA ACAD OF AEROSPACE AERODYNAMICS +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The currently used luminous temperature measurement technology has a relatively high temperature measurement area, and is more sensitive above 100 degrees Celsius

Method used

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  • Bicolor phosphorescent thermopaint
  • Bicolor phosphorescent thermopaint
  • Bicolor phosphorescent thermopaint

Examples

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specific Embodiment

[0040] Specific examples are shown in the following table:

[0041]

[0042]

[0043] Only take Example 5 as an example to briefly describe the preparation process of the present invention, and the principles of the preparation process of other embodiments are the same.

[0044] 1. Weigh strontium carbonate, cerium oxide and europium oxide at an atomic ratio of 0.0004, mix them uniformly, and react at 1000°C for 10 hours to obtain Sr 1.9996 CeO 4 :0.0004Eu 3+ Luminescent material in blocks.

[0045] 2. The luminescent material Sr 1.9996 CeO 4 :0.0004Eu 3+ The block material is coarsely crushed by a jaw crusher, then ground into a fine powder by a ball mill, and passed through a 250-mesh sieve.

[0046] 3. Sieved Sr 1.9996 CeO 4 :0.0004Eu 3+ After the powder is washed with water and absolute ethanol, it is dried at 200 degrees Celsius.

[0047] 4. The dried Sr 1.9996 CeO 4 :0.0004Eu 3+ The powder is 40% by mass of the luminescent material, added to the matrix...

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Abstract

The invention provides a bicolor phosphorescent thermopaint which comprises matrix paint and a luminescent material, wherein the chemical formula of the luminescent material is Sr2-xCeO4:xEu3+(x=0.0001-0.1), the mass percent of the luminescent material is 3-7%, and the mass percent of the matrix paint is 30-97%. The preparation method of the bicolor phosphorescent thermopaint comprises the following steps: preparing the luminescent material Sr2-xCeO4:xEu3+(x=0.0001-0.1), pulverizing, washing with water, washing with absolute ethyl alcohol and then drying; and mixing the luminescent material Sr2-xCeO4:xEu3+(x=0.0001-0.1) with the matrix paint to obtain the bicolor phosphorescent thermopaint. In the invention, the adopted luminescent material Sr2-xCeO4:xEu3+(x=0.0001-0.1) is sensitive to temperature within the range of 20-180 DEG C, and the ratio of blue light to red light transmitted by the luminescent material along with temperature change is in linear relation with temperature, thus being capable of accurately showing the temperature; the matrix paint which can penetrate ultraviolet light the wavelength less than 400 nanometers is adopted to achieve low light condition for temperature test; and the bicolor phosphorescent thermopaint has simple preparation method.

Description

technical field [0001] The invention relates to a novel two-color phosphorescent temperature-measuring coating for non-contact temperature measurement and a preparation method thereof, which belongs to the technical field of luminous coatings and is applied to the field of phosphorescent temperature measurement. Background technique [0002] In the field of aerospace, with the development of high-speed aircraft, aerodynamic thermodynamics is facing a series of aerodynamic heat transfer problems that need to be solved urgently. For example, separation and vortex flow caused by mutual interference between shock wave and boundary layer; turbulent flow structure; supersonic / hypersonic flow characteristics around protrusions; three-dimensional separation flow at high angle of attack, etc. In the field of heat transfer in engineering thermophysics, research on enhanced heat transfer, jet cooling technology, and heat transfer phenomena in complex structures also encountered some c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D5/22C09D183/00C09D133/00C09D163/00C09D167/00C09D161/20C09D167/08C09D161/06G01K11/20
Inventor 毕志献张洪杰伍超华李成宇刘训华李睿劬苏锵
Owner CHINA ACAD OF AEROSPACE AERODYNAMICS
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