Aqueous solar energy heat-absorbing coating

A solar energy absorption and coating technology, applied in the direction of radiation-absorbing coatings and coatings, can solve the problems of high cost and complex preparation process, and achieve the effects of low equipment requirements, simple preparation process and high thermal conductivity

Active Publication Date: 2015-03-04
ZHONGSHAN TAILAI PAINT CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The heat-absorbing coating of the core technology of solar collectors is expensive due to the complicated preparation process, and the key technology has not yet made a breakthrough

Method used

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  • Aqueous solar energy heat-absorbing coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A water-based solar heat-absorbing coating, in parts by weight:

[0023] 100 parts of silicon acrylic emulsion, 1 part of sulfonated graphene, Co-Al 2 o 3 12 parts of nanocomposite powder, 6 parts of yttrium stabilized zirconia powder, 6 parts of SiC powder, 10 parts of ultrafine iron powder, 4 parts of ultrafine nickel powder, 15 parts of flake graphite powder, 3 parts of silica sol, 4 parts of deionized water, 0.5 parts of leveling agent and 0.5 parts of wetting agent. At room temperature, grind the solid powder and liquid raw materials according to the weight ratio on the sander for 30 minutes to mix the materials evenly, and finally filter the prepared solution with a 1000-mesh filter, and put the filtered solution in a paint container for sealed storage , to obtain the water-based solar heat-absorbing coating.

[0024] The water-based solar heat-absorbing coating is evenly coated on the surface of the zinc steel plate, and the black water-based solar heat-absorb...

Embodiment 2

[0027] A water-based solar heat-absorbing coating, in parts by weight:

[0028] 100 parts of silicon acrylic emulsion, 0.5 parts of sulfonated graphene, Co-Al 2 o 318 parts of nanocomposite powder, 3 parts of yttrium stabilized zirconia powder, 4 parts of SiC powder, 5 parts of ultrafine iron powder, 8 parts of ultrafine nickel powder, 12 parts of flake graphite powder, 3 parts of silica sol, 4 parts of deionized water, 0.5 parts of leveling agent and 0.5 parts of wetting agent. At room temperature, the solid powder and liquid raw materials according to the weight ratio are ground on a sander for 40 minutes to mix the materials evenly, and finally the prepared solution is filtered with a 1000-mesh filter, and the filtered solution is sealed and stored in a paint container. , to obtain the water-based solar heat-absorbing coating.

[0029] The water-based solar heat-absorbing coating is evenly coated on the surface of the zinc steel plate, and after being completely cured at...

Embodiment 3

[0031] A water-based solar heat-absorbing coating, in parts by weight:

[0032] 100 parts of silicon acrylic emulsion, 2 parts of sulfonated graphene, Co-Al 2 o 3 30 parts of nanocomposite powder, 9 parts of yttrium stabilized zirconia powder, 8 parts of SiC powder, 15 parts of ultrafine iron powder, 12 parts of ultrafine nickel powder, 18 parts of flake graphite powder, 10 parts of silica sol, 4 parts of deionized water, 0.5 parts of leveling agent and 0.5 parts of wetting agent. At room temperature, the solid powder and liquid raw materials according to the weight ratio are ground on a sander for 60 minutes to mix the materials evenly, and finally the prepared solution is filtered with a 1000-mesh filter, and the filtered solution is sealed and stored in a paint container. , to obtain the water-based solar heat-absorbing coating.

[0033] The water-based solar heat-absorbing coating is uniformly coated on the surface of the zinc steel plate, and after being completely cur...

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Abstract

The invention discloses an aqueous solar energy heat-absorbing coating. The uniformly mixed aqueous solar energy heat-absorbing coating is prepared by carrying out defibrination on an organosilicone-modifed acrylic emulsion (silicone-acrylic emulsion), sulfonated graphene, Co-Al2O3 nano-composite powder, yttria-stabilized zirconia powder, SiC powder, superfine iron powder, superfine nickel powder, flake graphite powder, silica sol, deionized water, a flatting agent and a wetting agent in a sand grinding machine at the room temperature in a certain proportion. The aqueous solar energy heat-absorbing coating has the properties that the absorptivity is 0.90-0.94, the emissivity is 0.18-0.20, the coating adhesive force is 4B-5B level, the pencil hardness is H, and the stability and the environmental protection property are high; the aqueous solar energy heat-absorbing coating is simple in preparation process, low in cost, suitable for industrial production and especially applicable to solar energy heat-absorbing coatings of a solar heat absorber.

Description

technical field [0001] The invention relates to a water-based solar heat-absorbing coating and a preparation method thereof, belonging to the technical field of new coatings. Background technique [0002] Energy utilization occupies a pivotal position in the development of human society, but the excessive development of resources and low efficiency of resource utilization make human beings face a severe test. As we all know, solar energy is the most abundant and widely available renewable energy, which plays a major role in solving energy crisis and environmental problems. , making it a hot research topic in various countries. [0003] Solar thermal application is one of the simplest, most direct, and most effective ways for human beings to utilize solar energy. However, due to the small and discontinuous energy density of solar energy after reaching the earth, it has brought difficulties to large-scale development and utilization. For a long time, how to convert low-grade...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D5/32C09D7/12
CPCC08K3/04C08K3/08C08K3/22C08K3/34C08K3/36C08K13/06C08K2003/0856C08K2003/0862C08K2003/2227C08K2003/2244C09D5/32C09D7/61C09D7/62C09D133/04
Inventor 贺佑康钟志尧钟金山李伟黄凯兵
Owner ZHONGSHAN TAILAI PAINT CHEM
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