Yellow near-infrared high reflective coating and preparation method thereof

A near-infrared, high-reflection technology, applied in the direction of reflection/signal coatings, coatings, etc., can solve the problems of cost increase, complex preparation process, popularization, and difficulty in use, and achieve improved heat resistance, good comprehensive performance, and excellent performance. Effect of near-infrared reflectance

Inactive Publication Date: 2014-12-10
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the key raw materials for heat reflection, that is, pigments and fillers, are mainly imported, and there is a shortage of key raw materials in China. At the same time, in order to obtain high reflectivity, multi-layer structures are often used, which leads to complex preparation processes and increased costs, which cause certain difficulties in promotion and use.

Method used

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  • Yellow near-infrared high reflective coating and preparation method thereof
  • Yellow near-infrared high reflective coating and preparation method thereof
  • Yellow near-infrared high reflective coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A yellow high near-infrared reflective coating, the specific preparation steps are as follows:

[0037] 1. According to the mass, take 30 parts of silicone resin TSR-180, 15 parts of ethanol, 20 parts of isopropanol, 1 part of dispersant BYK-161, 1 part of defoamer BYK-066, and 1 part of leveling agent BYK-333 , 1 part of lubricant BYK-103, 1 part of film-forming aid BYK-358N, disperse at high speed for 2 hours with a high-speed disperser;

[0038] 2. Add 30 parts of yellow near-infrared reflective pigment during stirring, and continue to disperse for 2 hours;

[0039] The yellow near-infrared reflective pigment is obtained by ball-milling 60 parts of yttrium oxide, 25 parts of neodymium oxide and 15 parts of molybdenum oxide, and then calcining at 1400° C. for 150 minutes.

[0040] 3. After the dispersion is uniform, change the grinding head, add glass beads, grind at a speed of 600r / min for 2 hours, stop grinding, filter the glass beads for grinding, and obtain a uni...

Embodiment 2

[0043] A yellow high near-infrared reflective coating, the specific preparation steps are as follows:

[0044]1. Take 20 parts of silicone resin TSR-165, 30 parts of isobutanol, 1 part of dispersant BYK-161, 1 part of dispersant BYK-164, 2 parts of defoamer BYK-141, and 2 parts of leveling according to the mass Agent BYK-300, 2 parts of lubricant BYK-P104, 2 parts of film-forming aid BYK-358N, disperse at high speed for 2 hours with a high-speed disperser;

[0045] 2. Add 40 parts of yellow near-infrared reflective pigment during stirring, and continue to disperse for 2 hours;

[0046] The yellow near-infrared reflective pigment is obtained by ball milling and mixing 55 parts of yttrium oxide, 30 parts of neodymium oxide and 15 parts of molybdenum oxide, and calcining at 1600°C for 60 minutes.

[0047] 3. After the dispersion is uniform, change the grinding head, add glass beads, grind at a speed of 600r / min for 2 hours, stop grinding, filter the glass beads for grinding, and...

Embodiment 3

[0049] A yellow high near-infrared reflective coating, the specific preparation steps are as follows:

[0050] 1. According to the mass, take 5 parts of silicone resin TSR-180, 5 parts of silicone resin TSR-165, 5 parts of silicone resin YR-3187, 20 parts of isopropanol, 20 parts of isobutanol, and 2 parts of dispersant BYK -164, 1 part defoamer BYK-066N, 1 part defoamer BYK-141, 2 parts leveling agent BYK-306, 1 part lubricant BYK-103, 1 part lubricant BYK-P104, 2 parts film forming Auxiliary BYK-358N, disperse at high speed for 2 hours with a high-speed disperser;

[0051] 2. Add 35 parts of yellow near-infrared reflective pigment during stirring, and continue to disperse for 2 hours;

[0052] The yellow near-infrared reflective pigment is obtained by ball milling and mixing 65 parts of yttrium oxide, 20 parts of neodymium oxide and 15 parts of molybdenum oxide, and then calcining at 1500° C. for 180 minutes.

[0053] 3. After the dispersion is uniform, change the grinding...

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Abstract

The invention relates to a yellow near-infrared high reflective coating and a preparation method of the yellow near-infrared high reflective coating. The yellow near-infrared high reflective coating comprises the following components in percentage by weight: 20 to 50% of yellow near-infrared reflective pigments, 10 to 50% of a film-forming matter, 30 to 60% of a solvent and 4 to 30% of an additive. The film-forming matter is organic silicon resin, and the solvent is water or C1-C4 alcohol. The invention further provides the preparation method of the yellow near-infrared high reflective coating. The yellow near-infrared high reflective coating is high in reflectivity, bright in yellow chrominance and good in mechanical properties, and applied to outer surfaces of building exterior facades and top layers or oil storage tanks, vehicles and aircraft shells and ship decks to obviously lower temperature inside a coating material.

Description

technical field [0001] The invention belongs to the technical field of chemical coatings, and relates to a yellow near-infrared high-reflection coating. Background technique [0002] One of the hottest topics in the US construction industry today is "cold" roofing. Its main technical principle is to paint high-reflectivity paint on the roof of the building, the so-called "cool" paint, to improve the heat reflectivity of the roof. In the total solar energy reaching the ground, 95% of the infrared radiation energy is concentrated in the wavelength range of 0.72-2.5 μm, that is, in the near-infrared range. Therefore, coatings with high near-infrared reflectivity can reflect most of the energy of sunlight , significantly reduce the temperature of the surface of the object, avoid many adverse effects caused by the rise of the surface temperature, and at the same time reduce the use of refrigeration equipment such as air conditioners, save energy to a large extent, and meet the r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/04C09D5/33
Inventor 张玉军赵新巧龚红宇张潇予
Owner SHANDONG UNIV
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