CN112126287A - Gel type radiation cooling coating and preparation method and application thereof - Google Patents
Gel type radiation cooling coating and preparation method and application thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D129/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Coating compositions based on hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Coating compositions based on derivatives of such polymers
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- C09D129/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
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- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
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- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
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- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
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- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/004—Reflecting paints; Signal paints
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D7/65—Additives macromolecular
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- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- C08K2003/2241—Titanium dioxide
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Abstract
The invention discloses a gel type radiation cooling coating and a preparation method and application thereof, wherein the gel type radiation cooling coating is prepared by the following steps of dispersing and mixing 5-30 parts by weight of a water-based polymer, 20-40 parts by weight of a sunlight reflecting material, 20-40 parts by weight of an infrared radiation material, 3-5 parts by weight of an auxiliary agent and 60-100 parts by weight of deionized water uniformly at a high speed, and filtering the mixture by a filter screen. The gel type radiation cooling coating is coated on a base material according to the thickness of 200-800 mu m, a hydrogel coating formed by crosslinking after sealed packaging has the sunlight reflectivity of 0.92-0.96, and the sunlight reflection function can be recovered after pollution through washing with clear water. The radiation cooling coating disclosed by the invention is simple in process, low in cost, suitable for special shapes and planes, suitable for occasions such as residential buildings, commercial buildings and industrial plants, and has a wide application prospect.
Description
Technical Field
The invention belongs to the technical field of functional coatings, and particularly relates to a gel type radiation cooling coating, and a preparation method and application thereof.
Background
The radiation cooling material is used as a passive cooling material without energy consumption, realizes a cooling effect lower than the atmospheric temperature under the irradiation of the sun, can reduce the energy consumption of an air conditioner, can replace modes such as an air conditioner, a spraying mode and the like under a certain condition, has an obvious energy-saving effect, and has a huge application value. However, the existing radiation cooling material is often a material containing a metal coating, has complex process and high price, and is only suitable for flat surfaces. Chinese invention patent CN 201810238449.X discloses an outdoor all-weather sunlight reflection and infrared radiation refrigeration coating, which achieves the effect of passive refrigeration by adding micron-sized spherical microbeads, micron-sized metal-plated platy bodies and/or micron-sized metal-plated spherical bodies into a coating system and enabling the metal-plated platy structures to achieve high sunlight reflection and high infrared radiation in a layered coating mode. However, because of the use of micron-sized metal-plated reflective materials, the reflectivity of the invention is relatively low, and meanwhile, the field process is complicated by adopting a layered coating mode.
And the radiation cooling material in the form of paint can be suitable for any surface. The radiation cooling material taking solvent type PVDF as a component has extremely high solar reflectivity and infrared emissivity, but solvent pollution is not suitable for large-scale field application. The Chinese invention patent CN201810317662.X discloses a scattered radiation cooling random stacking microsphere coating and a preparation method thereof, the coating is formed by spraying or brushing a coating consisting of metal oxide with the particle size of 0.15-100 mu m, water and a surfactant, the stacking density of the coating is 40-80%, the thickness of the coating is 20-2000 mu m, the coating has the reflectivity of 0.9-0.98, and the surface cooling at 5 ℃ can be realized. However, the surface of the coating is free of film-forming substances, dust is easy to permeate into the microsphere coating, and the radiation cooling effect cannot be kept for a long time.
Disclosure of Invention
The invention provides a gel type radiation cooling coating and a preparation method and application thereof.
The technical scheme of the invention is as follows: adding the water-based polymer, the sunlight reflecting material, the infrared radiation material and the auxiliary agent into deionized water, dispersing and mixing uniformly at a high speed, and filtering by a filter screen to obtain the gel type radiation cooling coating. The gel type radiation cooling coating is coated on a substrate, and the formed gel layer has ultrahigh sunlight reflectivity and hemispherical emissivity and has a radiation cooling function.
The gel type radiation cooling coating comprises the following components in parts by weight:
preferably, the gel type radiation cooling coating comprises the following components in parts by weight:
by applying the technical scheme, the water-based polymer is one or more (one or more, including two) of polyvinyl alcohol, polyacrylamide, hydroxyethyl cellulose, methyl cellulose, carboxymethyl cellulose, sodium alginate, polyethylene oxide, chitosan, hyaluronic acid and gelatin. The water-based polymer can form hydrogel under specific conditions (such as chemical crosslinking, physical crosslinking and the like), and can be stable for a long time under a closed condition, so that the water-based polymer can be applied outdoors for a long time. The water-based polymer is preferably polyvinyl alcohol or sodium alginate, and has proper crosslinking speed and good ultraviolet resistance.
The water-based polymer is polyvinyl alcohol, and the polymer auxiliary agent is glutaraldehyde.
By applying the technical scheme, the sunlight reflecting material is one or more (one or more, including two) of alumina, calcium carbonate, zirconia, calcium silicate, silicon dioxide, zinc oxide, zirconium silicate, zinc aluminate, magnesium hydroxide, aluminum hydroxide, zinc stannate, aluminum silicate, zinc silicate, calcium molybdate, magnesium carbonate, zinc carbonate and potassium titanate. The sunlight reflecting material has extremely weak absorption spectrum at 0.25-2.5 mu m and high refractive index, and endows the coating with strong sunlight reflecting function.
By applying the technical scheme, the infrared radiation material is one or more (one or more, including two) of barium sulfate, sodium aluminum silicate, calcium phosphate, aluminum phosphate, zinc phosphate, magnesium phosphate, titanium dioxide and magnesium oxide. The infrared radiation material has a strong absorption spectrum at 2.5-25 mu m, especially at 8-13 mu m, and the coating has a strong infrared radiation function.
By applying the technical scheme, the auxiliary agent is one or more (one or more, including two) of a cross-linking agent, a dispersing agent, a defoaming agent, a wetting agent and a thickening agent. The auxiliary agent can adjust the batch stability and the application effect of the coating.
By applying the technical scheme, the preparation method of the gel type radiation cooling coating comprises the following steps:
1) stirring:
adding deionized water and an auxiliary agent into a high-speed disperser, adding a sunlight reflecting material and an infrared radiation material at a linear speed of 5-10 m/s, and stirring for 2-10 min to obtain a slurry;
2) dispersing:
dispersing the slurry at the speed of 5-20 m/s for 45-75 min, adding the water-based polymer and the polymer auxiliary agent, stirring for 10-30 min, and filtering by using a 300-500-mesh screen to obtain the gel type radiation cooling coating.
Most preferably, the preparation method of the gel type radiation cooling coating comprises the following steps:
adding 100 parts by weight of deionized water into a high-speed dispersion machine, adding 1 part by weight of wetting agent, 2 parts by weight of dispersing agent and 1 part by weight of defoaming agent at a linear speed of 5m/s, stirring for 5min, adding 7 parts by weight of silicon dioxide, 20 parts by weight of aluminum oxide, 10 parts by weight of zinc oxide, 10 parts by weight of barium sulfate and 10 parts by weight of zinc phosphate at a speed of 10m/s, and dispersing for 60 min;
and adding 8 parts by weight of polyvinyl alcohol and 2 parts by weight of glutaraldehyde, adjusting the pH value to 3-4, stirring for 20min, and filtering by using a 400-mesh screen to obtain the gel type radiation cooling coating.
After the gel type radiation cooling coating prepared by the method is used for preparing a gel product with a radiation cooling function, the product is a non-flowing gel in appearance, is stable for a long time, has a sunlight reflection ratio of 0.96 and a hemisphere emissivity of 0.95, and has very excellent performance.
By applying the technical scheme, the application of the gel type radiation cooling coating in preparing the gel product with the radiation cooling function comprises the following steps:
1) coating:
coating the gel type radiation cooling coating on a base material according to the thickness of 200-800 mu m;
the coating mode comprises spraying, roller coating and brush coating, and the base material comprises special-shaped and planar metal, inorganic nonmetal and organic polymer materials;
2) packaging:
and packaging the substrate coated with the gel type radiation cooling coating to form a closed environment, thereby obtaining the gel product with the radiation cooling function.
Compared with the prior art, the invention has the following advantages:
according to the invention, the gel type radiation cooling coating is coated on a substrate, a hydrogel coating formed by crosslinking after sealed packaging has a sunlight reflectivity of 0.92-0.96, and the sunlight reflection function can be recovered by washing with clear water after pollution.
The water-based polymer adopted by the invention has long-term durability, generates extremely high sunlight reflectivity by cooperating with the sunlight reflecting material, has simple process and low cost, is suitable for special shapes and planes, is suitable for occasions such as residential buildings, commercial buildings, industrial plants and the like, and has wide application prospect.
Detailed Description
The present invention will be further described with reference to the following examples. The "parts" in the following examples mean parts by weight.
Example 1
100 parts of deionized water are added into a high-speed dispersion machine at a linear speed of 5m/sAdding wetting agent 1 part (126 of Shanghai Shengnuopropye family), dispersant 2 parts (5040 of Shanghai Shengnuopropye family) and defoaming agent 1 part (NXZ of Shanghai Shengnuopropye family), and stirring for 5 min. Then 7 parts of precipitated silica (Yingchuangdegusa) was added thereto at a speed of 10m/s
20 parts of aluminum oxide (Shandong aluminum industry, purity 99.5%), 10 parts of zinc oxide (Shandong sea cis new material, purity 99.7%), 10 parts of barium sulfate (Henan Ba-Feng chemical industry), 10 parts of zinc phosphate (Hangzhou Sitan pigment chemical industry), and dispersing for 60 min. And then adding 8 parts of polyvinyl alcohol (Anhui Wei, 1788) and 2 parts of glutaraldehyde (old estuary new science and technology, purity of 50%), adjusting the pH value to 3-4, stirring for 20min, and filtering by a 400-mesh screen to obtain the gel type radiation cooling coating.
Example 2
80 parts of deionized water was added to a high-speed disperser, 1 part of a wetting agent (126, Shanghai san Nuo Puke., Shanghai), 1.5 parts of a dispersant (5040, Shanghai san Nuo Puke., Shanghai), 1.2 parts of a thickener (hydroxyethyl cellulose, Japan Biotin), 1 part of a defoaming agent (NXZ, Shanghai san Nuo Puke., Shanghai) were added at a linear velocity of 5m/s, and stirred for 5 min. Then 10 parts of zinc aluminate (Shandong Jiqing chemical industry), 10 parts of calcium molybdate (Oriental zirconium industry), 10 parts of zinc stannate (Degussa), 5 parts of calcium carbonate (Shandong Baisheng new material) and 20 parts of titanium dioxide (Dragon python Bailey Union, BLR-698) are added at the speed of 10m/s and dispersed for 60 min. And then adding 5 parts of polyvinyl alcohol (Anhui Wei, 1788) and 1 part of glutaraldehyde (old estuary new science and technology, purity of 50%), adjusting the pH value to 3-4, stirring for 20min, and filtering by a 400-mesh screen to obtain the gel type radiation cooling coating.
Example 3
70 parts of deionized water was added to a high-speed disperser, 0.5 part of a wetting agent (126, Shanghai Saint Nenopol family), 1 part of a dispersant (5040, Shanghai Saint Nenopol family), 0.5 part of a thickener (hydroxyethyl cellulose, Japan Biotin), 1 part of a defoaming agent (NXZ, Shanghai Saint Nenopol family) were added at a linear velocity of 5m/s, and stirred for 5 minutes. Then 10 parts of aluminum hydroxide (Anhui Kagaku technology), 20 parts of zirconium silicate (Oriental zirconium industry), 20 parts of potassium titanate (Nantong Oxin electronic), 10 parts of aluminum oxide (Shandong aluminum industry, purity 99%) and 10 parts of zinc phosphate (Hangzhou Sitan pigment chemical industry) are added at the speed of 10m/s and dispersed for 60 min. And then adding 30 parts of 10% solid content polyvinyl alcohol 1799 aqueous solution (Anhui Wei), 1 part of glutaraldehyde (old estuary new science and technology, purity 50%), adjusting the pH value to 3-4, stirring for 20min, and filtering by a 400-mesh screen to obtain the gel type radiation cooling coating.
Example 4
60 parts of deionized water was added to a high-speed disperser, 0.5 part of a wetting agent (126, san anoplogae, shanghai), 1.4 parts of a dispersant (5040, shanghai sananoploe), 1 part of a thickener (hydroxyethyl cellulose, japan shin), 1 part of an antifoaming agent (NXZ, shanghai sananoploe) were added at a linear velocity of 5m/s, and stirred for 5 min. Then 5 parts of precipitated silica (Yingchuangdegusa) was added thereto at a speed of 10m/s
10 parts of heavy calcium carbonate (Jiangxi Guangyuan chemical industry), 10 parts of potassium titanate (Nantong ao Xin electron), 20 parts of magnesium oxide (Wuzi Zehui chemical industry, purity 99%) and 20 parts of sodium aluminum silicate (Yingchuang Delousai, 820A), and dispersing for 60 min. And adding 20 parts of sodium alginate aqueous solution with solid content of 6% (Tsingtao double), stirring for 20min, and filtering by a 400-mesh screen to obtain the gel type radiation cooling coating.
Example 5
80 parts of deionized water was added to a high-speed disperser, 0.5 part of a wetting agent (126, Shanghai Saint Nenopol family), 2 parts of a dispersant (5040, Shanghai Saint Nenopol family), 0.5 part of a thickener (hydroxyethyl cellulose, Japan Biotin), 1 part of a defoaming agent (NXZ, Shanghai Saint Nenopol family) were added at a linear velocity of 5m/s, and stirred for 5 min. Then 6 parts of precipitated silica (Yingchuangdegusa) was added thereto at a speed of 10m/s
20 parts of magnesium oxide (tin-free luster chemical industry, purity 99%), 10 parts of zinc stannate (science and technology of Jiangxi), 10 parts of barium sulfate (Henan Ba Feng chemical industry), 15 parts of calcium phosphate (constant new special chemical industry), and dispersing for 60 min. Then 20 parts of polyvinyl alcohol 1799 aqueous solution with solid content of 8% (Anhui Wei), 0.5 part of glutaraldehyde (old estuary new science and technology,purity of 50%), adjusting pH value to 3-4, stirring for 20min, and filtering by a 400-mesh screen to obtain the gel type radiation cooling coating.
Example 6
60 parts of deionized water was added to a high-speed disperser, 0.5 part of a wetting agent (126, san anoplogae, shanghai), 1.4 parts of a dispersant (5040, shanghai sananoploe), 1 part of a thickener (hydroxyethyl cellulose, japan shin), 1 part of an antifoaming agent (NXZ, shanghai sananoploe) were added at a linear velocity of 5m/s, and stirred for 5 min. 5 parts of titanium dioxide (Bayilian, BLR-698), 10 parts of heavy calcium carbonate (Jiangxi Guangyuan chemical industry), 10 parts of potassium titanate (Nantong ao Xin electronic industry), 20 parts of magnesium oxide (stannless Zeolite chemical industry, purity 99%) and 20 parts of sodium aluminum silicate (Yingchuang Delgasai, 820A) are added at the speed of 10m/s and dispersed for 60 min. And adding 20 parts of sodium alginate aqueous solution with solid content of 6% (Tsingtao double), stirring for 20min, and filtering by a 400-mesh screen to obtain the gel type radiation cooling coating.
Comparative example 1
80 parts of deionized water was added to a high-speed disperser, 1 part of a wetting agent (126, Shanghai san Nuo Puke., Shanghai), 1.5 parts of a dispersant (5040, Shanghai san Nuo Puke., Shanghai), 1.2 parts of a thickener (hydroxyethyl cellulose, Japan Biotin), 1 part of a defoaming agent (NXZ, Shanghai san Nuo Puke., Shanghai) were added at a linear velocity of 5m/s, and stirred for 5 min. Then 10 parts of zinc aluminate (Shandong Jiqing chemical industry), 10 parts of calcium molybdate (Oriental zirconium industry), 10 parts of zinc stannate (Degussa), 5 parts of calcium carbonate (Shandong Baisheng new material) and 20 parts of titanium dioxide (Dragon python Bailey Union, BLR-698) are added at the speed of 10m/s and dispersed for 60 min. Then, 50 parts of acrylic emulsion (Shanghai Baolijia, KD96) was added thereto, and the mixture was filtered through a 400-mesh screen to obtain a coating composition.
Comparative example 2
80 parts of deionized water was added to a high-speed disperser, 1 part of a wetting agent (126, Shanghai san Nuo Puke., Shanghai), 1.5 parts of a dispersant (5040, Shanghai san Nuo Puke., Shanghai), 1.2 parts of a thickener (hydroxyethyl cellulose, Japan Biotin), 1 part of a defoaming agent (NXZ, Shanghai san Nuo Puke., Shanghai) were added at a linear velocity of 5m/s, and stirred for 5 min. Then 10 parts of zinc aluminate (Shandong Jiqing chemical industry), 10 parts of calcium molybdate (Oriental zirconium industry), 10 parts of zinc stannate (Degussa), 5 parts of hollow glass beads (American 3M, VS5500) and 20 parts of titanium dioxide (Lopython Bailey Union, BLR-698) are added at the speed of 10M/s and dispersed for 60 min. Then, 50 parts of acrylic emulsion (Shanghai Baolijia, KD96) was added to obtain a coating composition.
Comparative example 3
80 parts of deionized water was added to a high-speed disperser, 0.5 part of a wetting agent (126, Shanghai Saint Nenopol family), 2 parts of a dispersant (5040, Shanghai Saint Nenopol family), 0.5 part of a thickener (hydroxyethyl cellulose, Japan Biotin), 1 part of a defoaming agent (NXZ, Shanghai Saint Nenopol family) were added at a linear velocity of 5m/s, and stirred for 5 min. Then 6 parts of precipitated silica (Yingchuangdegusa) was added thereto at a speed of 10m/s
20 parts of magnesium oxide (tin-free luster chemical industry, purity 99%), 10 parts of zinc stannate (science and technology of Jiangxi), 10 parts of barium sulfate (Henan Ba Feng chemical industry), 15 parts of calcium phosphate (constant new special chemical industry), and dispersing for 60 min. And adding 20 parts of polyvinyl alcohol 1799 aqueous solution (Anhui vitamin) with the solid content of 8%, and filtering by using a 400-mesh screen to obtain the coating composition.
Application example 1
The application of the gel type radiation cooling coating in preparing the gel product with the radiation cooling function comprises the following steps:
1) coating: coating the gel type radiation cooling coating on a base material by roller coating according to the thickness of 400 mu m;
2) packaging: and packaging the substrate coated with the gel type radiation cooling coating to form a closed environment, thereby obtaining the gel product with the radiation cooling function.
The gel-type radiant cooling coating products obtained in the embodiments 1 to 6 and the coating products prepared in the comparative examples 1 to 3 are coated on an aluminum plate to obtain a wet film of 500um and sealed, the wet film is maintained at room temperature for 7 days, the appearance is observed, and the solar reflectance ratio and the hemispherical emissivity are tested according to JG/T235-ion 2014 architectural reflective insulation coating, and the results are shown in Table 1.
TABLE 1
| Appearance of the product | Solar reflectance | Hemispherical emissivity | |
| Example 1 | Non-flowing gel, long-term stability | 0.96 | 0.95 |
| Example 2 | Non-flowing gel, long-term stability | 0.93 | 0.90 |
| Example 3 | Non-flowing gel, long-term stability | 0.96 | 0.91 |
| Example 4 | Non-flowing gel, long-term stability | 0.92 | 0.95 |
| Example 5 | Non-flowing gel, long-term stability | 0.94 | 0.93 |
| Example 6 | Non-flowing gel, long-term stability | 0.95 | 0.92 |
| Comparative example 1 | Fluid liquids, long-term settleable | 0.93 | 0.91 |
| Comparative example 2 | Fluid liquids, long-term settleable | 0.94 | 0.92 |
| Comparative example 3 | Fluid liquids, long-term settleable | 0.93 | 0.90 |
As shown in Table 1, the water-based polymer can form the hermetically packaged hydrogel in the coating, the hydrogel and the sunlight reflecting material cooperate to generate the sunlight reflectivity of 0.92-0.96, and the sunlight reflecting function can be recovered by washing with clear water after long-term environmental pollution. The radiation cooling coating disclosed by the invention is simple in process, low in cost, suitable for special shapes and planes, suitable for occasions such as residential buildings, commercial buildings and industrial plants, and has a wide application prospect.
Claims (10)
1. The gel type radiation cooling coating is characterized by comprising the following components in parts by weight:
2. the gel-type radiant cooling coating as claimed in claim 1, which is characterized by comprising the following components in parts by weight:
3. the gel-type radiant cooling coating as claimed in claim 1 or 2, wherein the water-based polymer is one or more of polyvinyl alcohol, polyacrylamide, hydroxyethyl cellulose, methyl cellulose, carboxymethyl cellulose, sodium alginate, polyethylene oxide, chitosan, hyaluronic acid and gelatin.
4. The gel-type radiant cooling coating as claimed in claim 3, wherein the aqueous polymer is polyvinyl alcohol or sodium alginate;
when the water-based polymer is polyvinyl alcohol, the polymer auxiliary agent is glutaraldehyde.
5. The gel type radiant cooling coating material as claimed in claim 1 or 2, wherein the solar reflective material is one or more of alumina, calcium carbonate, zirconia, calcium silicate, silica, zinc oxide, zirconium silicate, zinc aluminate, magnesium hydroxide, aluminum hydroxide, zinc stannate, aluminum silicate, zinc silicate, calcium molybdate, magnesium carbonate, zinc carbonate, and potassium titanate.
6. The gel type radiant cooling coating as claimed in claim 1 or 2, wherein the infrared radiation material is one or more of barium sulfate, sodium aluminum silicate, calcium phosphate, aluminum phosphate, zinc phosphate, magnesium phosphate, titanium dioxide and magnesium oxide.
7. The gel type radiant cooling coating as claimed in claim 1 or 2, wherein the auxiliary agent is one or more of a cross-linking agent, a dispersing agent, a defoaming agent, a wetting agent and a thickening agent.
8. The preparation method of the gel type radiation cooling coating according to any one of claims 1 to 7, characterized by comprising the following steps:
1) adding deionized water and an auxiliary agent into a high-speed disperser, adding a sunlight reflecting material and an infrared radiation material at a linear speed of 5-10 m/s, and stirring for 2-10 min to obtain a slurry;
2) dispersing the slurry at the speed of 5-20 m/s for 45-75 min, adding the water-based polymer and the polymer auxiliary agent, stirring for 10-30 min, and filtering by using a 300-500-mesh screen to obtain the gel type radiation cooling coating.
9. The application of the gel type radiation cooling coating according to any one of claims 1 to 7 in preparing gel products with radiation cooling function.
10. Use according to claim 9, characterized in that it comprises the following steps:
1) coating the gel type radiation cooling coating on a base material according to the thickness of 200-800 mu m;
2) and packaging the substrate coated with the gel type radiation cooling coating to form a closed environment, thereby obtaining the gel product with the radiation cooling function.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113999585A (en) * | 2021-11-30 | 2022-02-01 | 苏州大学 | Thermochromic radiation refrigeration coating, thermochromic radiation refrigeration film and preparation method thereof |
| CN114657784A (en) * | 2022-04-25 | 2022-06-24 | 浙江理工大学 | Textile with radiation refrigeration function and preparation method thereof |
| CN115449252A (en) * | 2022-07-29 | 2022-12-09 | 福建省三棵树新材料有限公司 | Radiation refrigeration coating and preparation method thereof |
| CN115558348A (en) * | 2022-10-14 | 2023-01-03 | 江苏中新瑞光学材料有限公司 | Transmission type radiation refrigeration coating and radiation refrigeration film based on same |
| WO2023107009A3 (en) * | 2021-12-08 | 2023-07-20 | Nanyang Technological University | Hydrogels and methods of preparing the same |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113999585A (en) * | 2021-11-30 | 2022-02-01 | 苏州大学 | Thermochromic radiation refrigeration coating, thermochromic radiation refrigeration film and preparation method thereof |
| WO2023107009A3 (en) * | 2021-12-08 | 2023-07-20 | Nanyang Technological University | Hydrogels and methods of preparing the same |
| CN114657784A (en) * | 2022-04-25 | 2022-06-24 | 浙江理工大学 | Textile with radiation refrigeration function and preparation method thereof |
| CN114657784B (en) * | 2022-04-25 | 2024-01-23 | 浙江理工大学 | Textile with radiation refrigeration function and preparation method thereof |
| CN115449252A (en) * | 2022-07-29 | 2022-12-09 | 福建省三棵树新材料有限公司 | Radiation refrigeration coating and preparation method thereof |
| CN115449252B (en) * | 2022-07-29 | 2024-01-09 | 福建省三棵树新材料有限公司 | Radiation refrigeration coating and preparation method thereof |
| CN115558348A (en) * | 2022-10-14 | 2023-01-03 | 江苏中新瑞光学材料有限公司 | Transmission type radiation refrigeration coating and radiation refrigeration film based on same |
| CN115558348B (en) * | 2022-10-14 | 2023-08-22 | 江苏中新瑞光学材料有限公司 | Transmission type radiation refrigeration coating and radiation refrigeration film based on same |
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| CN112126287B (en) | 2022-06-24 |
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Denomination of invention: A gel type radiation cooling coating and its preparation method and application Effective date of registration: 20230311 Granted publication date: 20220624 Pledgee: Hangzhou United Rural Commercial Bank Co.,Ltd. Xiasha sub branch Pledgor: Hangzhou clean carbon technology Co.,Ltd. Registration number: Y2023980034650 |
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