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Solvent type functional coating with good solar energy absorption and infrared radiation performance and preparation method of solvent type functional coating

A technology of solar energy absorption and infrared radiation, which is applied in the field of polymer materials and composite materials, can solve problems such as high optical attenuation rate and spinel composition segregation, and achieve excellent high temperature resistance, low thermal emissivity, and good infrared radiation characteristics.

Inactive Publication Date: 2021-10-01
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, spinel is prone to compositional segregation at high temperature, resulting in a high optical attenuation rate

Method used

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  • Solvent type functional coating with good solar energy absorption and infrared radiation performance and preparation method of solvent type functional coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) Functional pigments (CuCoMnFe) 3 o 4 preparation of

[0037] Weigh CuO 11.933g (0.15mol), MnO 2 13.041g (0.15mol), Co 3 o 4 12.04g (0.05mol), Fe 2 o 3 11.977g (0.075mol) powder; according to the mass ratio of ball: material: water 2:1:3, pour the ball mill beads, raw materials and ultrapure water into the ball mill jar; and place the ball mill jar on the ball mill station for 1 hour Ball milling at a speed of 300r / min, followed by a pause of 10 minutes, as a ball milling cycle, after 10 minutes, ball milling for 1 hour at a speed of 300r / min, and a total of 5 hours of ball milling to obtain a mixed powder; then the mixed powder obtained after ball milling was dried , Put it in a box-type resistance furnace after grinding, heat up to 500°C in air atmosphere (heating rate is 10°C / min), calcinate for 1 hour, and then air quench and cool to room temperature to obtain single-phase (CuCoMnFe) 3 o 4 High entropy oxide powder. Particle size 20nm, specific surface ...

Embodiment 2

[0044] (1) Functional pigments (CuCoMnFeAl) 3 o 4 preparation of

[0045] Weigh CuO 11.933g (0.15mol), MnO 2 13.041g (0.15mol), Co 3 o 4 12.04g (0.05mol), Fe 2 o 3 11.977g (0.075mol), Al 2 o 3 11.977g (0.075mol) powder; according to the mass ratio of ball: material: water 5:1:3, pour the ball mill beads, raw materials and ultrapure water into the ball mill jar; and place the ball mill jar on the ball mill station for 1 hour Ball milling at a speed of 500r / min, followed by a pause of 10 minutes, as a ball milling cycle, after 10 minutes, ball milling for 1 hour at a speed of 500r / min, and a total of 12 hours of ball milling to obtain a mixed powder; then the mixed powder obtained after ball milling was dried 1. After grinding, put it in a box-type resistance furnace, raise the temperature to 1200°C in the air atmosphere (the heating rate is 15°C / min), calcinate for 10 hours, and then cool to room temperature with the furnace to obtain single-phase (CuCoMnFeAl) 3 o 4 ...

Embodiment 3

[0052] (1) Functional pigments (CuCoMnFeAlNi) 3 o 4 preparation of

[0053] Weigh CuO 11.933g (0.15mol), MnO 2 13.041g (0.15mol), Co 3 o 4 12.04g (0.05mol), Fe 2 o 3 11.977g (0.075mol), Al 2 o 3 11.977g (0.075mol), NiO11.207g (0.15mol) powder; according to the ball: material: water mass ratio 3:1:3, pour the ball mill beads, raw materials and ultrapure water into the ball mill jar; and place the ball mill jar in the ball mill At the station, ball mill for 1 hour at a speed of 450r / min, and then pause for 10 minutes as a ball milling cycle. After 10 minutes, ball mill for 1 hour at a speed of 450r / min for a total of 7 hours to obtain a mixed powder; then The mixed powder obtained after ball milling was dried and ground, then placed in a box-type resistance furnace, heated to 650°C (heating rate: 14°C / min) in air atmosphere, calcined for 7 hours, then quenched with liquid nitrogen and cooled to room temperature to obtain a single phase (CuCoMnFeAlNi) 3 o 4 High entro...

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Abstract

The invention discloses a preparation method of a solvent type functional coating with good solar energy absorption and infrared radiation performance. The solvent type functional coating is prepared by taking trimethylsilyl polyhedral oligomeric silsesquioxane and vinyl polyhedral oligomeric silsesquioxane as high-temperature-resistant resins and taking a high-entropy oxide ceramic material (A) 3O4 as a functional pigment. A functional coating prepared from the coating has high solar energy absorptivity, low thermal emissivity, good infrared radiation characteristic and excellent thermal shock resistance, corrosion resistance and high temperature resistance, and has important application value in the fields of solar photo-thermal utilization, infrared enhanced heat transfer, heat dissipation, energy conservation and the like.

Description

technical field [0001] The invention relates to a solvent-based functional coating, in particular to a solvent-based functional coating with high-temperature solar energy absorption and infrared radiation functions, and belongs to the field of composite materials and polymer materials. Background technique [0002] In the context of carbon neutrality and carbon peaking, the development of new materials for solar energy utilization and new materials for improving energy utilization and energy saving in the industrial field has important academic and application values. According to the basic law of radiation heat transfer and the calculation formula, increasing the surface radiation coefficient of the radiator will be beneficial to the enhancement of radiation heat transfer. Infrared rays usually refer to electromagnetic waves with a wavelength in the range of 2.5 to 1000 μm. This electromagnetic wave can be absorbed by an object to resonate the internal particles of the mate...

Claims

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Application Information

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IPC IPC(8): C09D183/07C09D183/04C09D5/32C09D5/08C09D7/61
CPCC09D183/04C09D5/32C09D5/08C09D5/18C09D7/61C08K2003/2244C08L2201/08C08K3/22Y02P20/10
Inventor 高祥虎刘维民刘刚何成玉汪增强赵士杰
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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