Preparation method of transparent heat insulation and cooling coating for electric vehicle hood

A technology of thermal insulation, cooling and thermal insulation paste, which is applied in the direction of reflection/signal paint, polyurea/polyurethane paint, coating, etc., can solve the problems of poor paste stability, high cost, low coating transparency, etc. Improve compatibility, excellent cooling effect, enhance the ability to reflect solar radiation

Inactive Publication Date: 2019-01-08
JIESHOU LANDROVER VEHICLE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Some defects limit its development, such as poor slurry stability, low coating transparency, high cost, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A preparation method for a transparent heat-insulating and cooling paint for a battery car roof, characterized in that it comprises the following steps:

[0027] (1) Preparation of nano-lanthanum hexaboride thermal insulation slurry:

[0028] Add 4 parts of lanthanum hexaboride powder, dispersion medium, and 0.2 parts of surfactant to a grinding disc equipped with zirconia grinding beads, turn on the condensate water in the return pipe, perform mechanical grinding for 5 hours, filter, and then ultrasonically disperse for 15 minutes to obtain Nano lanthanum hexaboride thermal insulation slurry;

[0029] (2) Coating modification of hollow glass microspheres:

[0030] Add distilled water at 1:10 to 8 parts of hollow glass microspheres, add 1 part of surfactant dropwise, stir and disperse with magnetic heating for 15 minutes, raise the temperature to 70-73°C, adjust the pH to 2 with sodium hydroxide solution, and slowly add 4 parts of sulfuric acid Titanium solution, cont...

Embodiment 2

[0040] A preparation method for a transparent heat-insulating and cooling paint for a battery car roof, characterized in that it comprises the following steps:

[0041] (1) Preparation of nano-lanthanum hexaboride thermal insulation slurry:

[0042] Add 6 parts of lanthanum hexaboride powder, dispersion medium, and 0.3 parts of surfactant to the grinding disc equipped with zirconia grinding beads, turn on the condensate water in the return pipe, perform mechanical grinding for 6 hours, filter, and then ultrasonically disperse for 20 minutes to obtain Nano lanthanum hexaboride thermal insulation slurry;

[0043] (2) Coating modification of hollow glass microspheres:

[0044] Add distilled water at 1:10 to 10 parts of hollow glass microspheres, add 2 parts of surfactant dropwise, stir and disperse by magnetic heating for 25 minutes, raise the temperature to 70-73°C, adjust the pH to 3 with sodium hydroxide solution, and slowly add 5 parts of sulfuric acid Titanium solution, co...

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Abstract

The invention discloses a preparation method of transparent heat insulation and cooling coating for an electric vehicle hood. The preparation method comprises the following steps: adding deionized water in waterborne polyurethane resin, uniformly stirring at high speed to obtain a film-forming agent, mixing the film-forming agent with nanometer tin antimony oxide waterborne slurry, nanometer indium tin oxide waterborne slurry and nanometer lanthanum hexaboride heat insulation slurry and the cladding modified hollow glass beads, stirring at high speed, adding auxiliaries, ultrasonically dispersing after quickly stirring, leaving to stand to defoam and then filtering to obtain the transparent heat insulation and cooling coating. Since the titanium dioxide is high in sunlight reflectivity, alayer of titanium dioxide film is adhered on the surface of the hollow glass beads, the dispersion effect of the hollow glass beads in the waterborne coating can be improved, and the capacity of reflecting the solar radiation is enhanced at the same time, and then the aim of cooling is achieved.

Description

technical field [0001] The invention belongs to the field of battery car roof coatings, and in particular relates to a preparation method of a transparent heat-insulating and cooling paint for battery car roofs. Background technique [0002] Cooling coating is a new type of functional coating, which can effectively prevent heat conduction, reduce the temperature of the coating surface and internal environment, so as to achieve the purpose of improving the working environment and reducing energy consumption. There are many studies on various cooling coatings at home and abroad, but there is no reference basis for the influence of various pigments and fillers on the cooling effect. Therefore, the present invention studies the influence of filler hollow glass microspheres on the cooling effect of cooling coatings. [0003] Nano transparent thermal insulation coating has a very wide range of applications. However, due to the existence of existing products [0004] Some defects...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D5/33C09D7/61C09D7/62C09D7/20
CPCC08K2201/011C09D5/004C09D7/20C09D7/61C09D7/62C09D175/04C08K9/10C08K7/28C08K3/38C08K3/22
Inventor 段子堂
Owner JIESHOU LANDROVER VEHICLE IND
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