Solar selective heat-absorbing coating

A heat-absorbing coating and selective technology, which is applied in the field of heat-absorbing materials, can solve the problems of high cost, complicated process flow, and high requirements, and achieve the effects of reducing preparation costs, increasing pleochroism, and improving heat resistance

Inactive Publication Date: 2016-06-15
GUANGXI CHAOXING SOLAR ENERGY TECH
View PDF7 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The current solar heat-absorbing coatings are full of researches specifically aimed at the weather resistance and water resistance of solar energy coatings. Nowadays, nano-materials are used as raw materials for heat-absorbing materials, which can improve the weather resistance and heat-absorbing ...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Solar selective heat-absorbing coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A kind of solar energy selective heat-absorbing paint, raw material is:

[0032] Film-forming agent: modified casein-gelatin 50kg;

[0033] Film-forming aids: propylene glycol butyl ether 4kg, propylene glycol methyl ether acetate 6kg;

[0034] Light absorbing agent: mix 15kg of cobalt blue powder, 12kg of manganese oxide powder and 8kg of enamel black to make black;

[0035] Solvent: acetic acid 6kg, anhydrous butyl acetate 8kg, glycerol 6kg;

[0036] Auxiliaries are plasticizers, coupling agents, leveling agents, wetting agents and defoamers, wherein,

[0037] Plasticizer: dibutyl phthalate 2kg;

[0038] Coupling agent: silane coupling agent 1kg, titanate coupling agent 2kg;

[0039]Leveling agent: EFKA35702kg, EFKA35801kg for uniform mixing;

[0040] Wetting agent: polysiloxane 2kg;

[0041] Defoamer: polyoxyethylene oxypropylene glycerin 1kg.

[0042] The steps of preparing the solar energy selective heat-absorbing coating according to the above-mentioned raw...

Embodiment 2

[0046] A kind of solar energy selective heat-absorbing paint, raw material is:

[0047] Film-forming agent: modified casein-gelatin 100kg;

[0048] Film-forming aids: propylene glycol butyl ether 10kg, propylene glycol methyl ether acetate 10kg, propylene glycol phenyl ether 10kg;

[0049] Light absorbing agent: Use 10kg of cobalt blue powder, 20kg of manganese oxide powder and 25kg of organic carbon black to make black;

[0050] Solvent: 15kg of glycerol, 15kg of tetrahydrofuran-oxypropylene copolymerized glycol and 25kg of polyurethane polyether polyol;

[0051] Auxiliaries are plasticizers, coupling agents, leveling agents, wetting agents and defoamers, wherein,

[0052] Plasticizer: dibutyl phthalate 3kg;

[0053] Coupling agent: aluminate coupling agent 2kg;

[0054] Leveling agent: YCK-13605kg;

[0055] Wetting agent: polyether modified polydimethylpolysiloxane 2kg;

[0056] Defoamer: polyoxyethylene polyoxypropylene pentaerythritol ether 3kg;

[0057] The steps o...

Embodiment 3

[0061] A kind of solar energy selective heat-absorbing paint, raw material is:

[0062] Film-forming agent: modified casein-gelatin 80kg;

[0063] Film-forming aids: propylene glycol methyl ether acetate 10kg, propylene glycol phenyl ether 5kg, benzyl alcohol 10kg;

[0064] Light absorbing agent: Use 18kg of chromium oxide green powder, 12kg of selenium cadmium sulfide powder, and 20kg of iron oxide red powder to make red;

[0065] Solvent: acetic acid 20kg, and polyurethane polyether polyol 20kg;

[0066] Auxiliaries are plasticizers, coupling agents, leveling agents, wetting agents and defoamers, wherein,

[0067] Plasticizer: dibutyl phthalate 2kg;

[0068] Coupling agent: a mixture of 2 kg of phosphate coupling agent and 2 kg of borate coupling agent;

[0069] Leveling agent: mix BYK-3332kg and TEGOGlide1002kg;

[0070] Wetting agent: polyester modified polydimethylsiloxane 3kg;

[0071] Defoamer: Polyoxypropylene 2kg.

[0072] The steps of preparing the solar energ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Login to view more

Abstract

The invention discloses a solar selective heat-absorbing coating. A light absorbing agent, a film forming agent, a solvent and an aid are evenly dispersed with a ball-milling method, a coalescing agent is added, and the solar selective heat-absorbing coating can be obtained after mixing. The coating is prepared from raw materials in parts by weight as follows: 50-100 parts of the film forming agent, 10-30 parts of the coalescing agent, 35-55 parts of the light absorbing agent, 20-50 parts of the solvent and 10-30 parts of the aid; the coalescing agent is propylene glycol butyl ether, propylene glycol monomethyl ether acetate and the like; a preparation method of the film forming agent comprises steps as follows: casein and gelatin are mixed in the weight ratio being (5-10):(2-3), water is added, the mixture is soaked at 15-22 DEG C and then transferred to a normal-temperature environment, a mixture of methyl acrylate and hexamethyldisiloxane in the weight ratio being (1-2):)(1-3) is added, the mixture is stirred and then irradiated under ultraviolet light for 10-15 min, and then modified casein-gelatin is obtained. The film forming agent is modified to be used as an important raw material for preparing the coating, the prepared coating has good weather resistance and waterproofness outdoors, the preparation process is simple and easy to understand, and the heat absorption efficiency of the heat-absorbing coating is guaranteed.

Description

technical field [0001] The invention relates to heat-absorbing materials, in particular to a solar selective heat-absorbing paint. Background technique [0002] Energy utilization plays a pivotal role in the development of human society, but the excessive development of resources and inefficient 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. Our country is rich in solar energy resources and has broad prospects for solar energy utilization. At present, it is the first user and producer of solar water heaters in the world. [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 reachin...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C09D189/00C09D7/12C09D5/32
CPCC08L2205/035C09D5/32C09D7/61C09D7/63C09D7/65C09D189/005C08L89/00C08L83/04C08L71/02C08K13/02C08K3/24C08K2003/2262C08K5/09C08K5/101C08K5/053C08K5/54C08K5/10C08L83/12C08K3/04C08K5/12C08L83/10C08K2003/2251C08K2003/3027C08K2003/2272C08K5/521
Inventor 丘秋燕马佳乐马昭键蒙献芳周帆周子茜周腾飞
Owner GUANGXI CHAOXING SOLAR ENERGY TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap