CN112322116A - Novel glass super-hydrophobic transparent efficient heat-insulating coating - Google Patents
Novel glass super-hydrophobic transparent efficient heat-insulating coating Download PDFInfo
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Abstract
The invention provides a novel glass super-hydrophobic transparent efficient heat insulation coating and a preparation method thereof, relates to the field of building materials, and particularly relates to a novel glass super-hydrophobic transparent efficient heat insulation coating. The novel glass super-hydrophobic transparent efficient heat-insulating coating comprises the following raw materials in parts by weight: 2400-2600 kg of water-based fluorocarbon resin (with solid content of 45-50%), 1200-1300 kg of slurry, 1100-1300 kg of deionized water, 130-160 kg of 1053 dispersant, 50-70 kg of DP-082 defoaming agent, 30-50 kg of WT-102 thickener, twelve 80-100 kg of alcohol ester, 90-110 kg of flatting agent, 4-6 kg of dipropylene glycol methyl ether and 4-6 kg of dipropylene glycol butyl ether. Uniformly mixing the aqueous fluorocarbon resin and the slurry in proportion, adding deionized water, a dispersing agent, a defoaming agent, a thickening agent, alcohol ester dodeca, a leveling agent, dipropylene glycol methyl ether and dipropylene glycol butyl ether, adjusting the pH value to 7, and entering a dispersion machine to disperse at a high speed of 1500 revolutions per minute for 30 minutes to obtain the glass super-hydrophobic transparent efficient heat-insulating coating.
Description
The invention relates to the field of coatings. A novel glass super-hydrophobic transparent high-efficiency heat-insulating coating and a preparation method thereof.
Background
The irradiation of the sun provides necessary conditions for the survival and life of human beings, but the strong radiation of the sun in summer brings great inconvenience for the life and work of human beings. The heat insulating paint is one new kind of energy saving decorative paint for use on building surface to reach the aims of lowering the temperature inside building and reducing the power consumption of air conditioner.
The popularization rate of the foreign glass nano transparent heat insulation coating is extremely high, and in the United states, the popularization rate of the building glass nano transparent heat insulation coating exceeds 90 percent. The popularization rate of the nano transparent heat-insulating coating for the building glass in australia, new zealand and other countries is over 75 percent. The glass nano transparent heat-insulating coating is used everywhere from a pentagon, a white palace, a Sydney opera house, an FBI headquarters to a plurality of civil buildings … …. In European regions, the popularization rate of the glass nano transparent heat-insulating coating for buildings also reaches more than 80 percent. Wherein, the popularization rate of the transparent heat-insulating coating for the building glass in the Netherlands, Denmark, Switzerland and other countries exceeds 85 percent. In Asian region, except hong Kong and Taiwan region of China, Japan and Korea, the popularity of the transparent heat-insulating coating for building glass is less than 20% on average.
The popularization rate of the transparent heat-insulating coating for building glass in continental China is not more than 10 percent at present. According to statistics of Ministry of construction and the national Bureau of building materials, the total area of public buildings in China is about 45 hundred million square meters, and 99 percent of public buildings belong to high-energy-consumption buildings. In the coming years, the nations will fully popularize and popularize the energy-saving building materials, which will form profit margins of at least 5000 hundred million markets. At present, glass transparent heat insulation coatings are increasingly gaining wide popularity.
Materials that block the transmission of heat flow are also known as thermal insulation materials. The heat insulating material is classified into a porous material and a heat reflecting material. The former uses the pores contained in the material itself to insulate heat because the air or inert gas in the pores has a very low thermal conductivity, such as aerogel materials, foam materials, fibrous materials; the latter material has a high reflection coefficient and reflects heat away, such as tin oxide, tungsten oxide, antimony oxide, and other metal oxides.
With the development of nano powder technology, nano functional pigments are continuously emerged, and the comprehensive performance of the reflective heat-insulating coating for buildings can be greatly improved by adding a proper amount of nano pigments into the coating.
The aerogel is a porous nano material which is formed by taking SiO2 colloidal particles as a framework, has high specific surface area, high porosity, low density and extremely low thermal conductivity, has excellent heat insulation, heat preservation, fire prevention, water prevention, sound insulation, shock resistance and other properties, is widely applied to the fields of thermology, optics, electrics, environmental protection, catalysis, adsorption, chemical industry and the like, and can be used as a novel filler or additive to be added into various systems.
The aerogel is a high-quality high-efficiency heat insulation material, has extremely high porosity, can effectively reduce the solid phase heat conduction of the material, and has the pore diameter mainly distributed in the mesoporous range (2-30 nm), thereby effectively inhibiting the gas phase heat conduction. The thermal insulation material has the name of super thermal insulation material, and the thermal insulation effect of the thermal insulation material is about 5 times that of other thermal insulation materials.
At present, the most applied radiation type heat insulation coatings take metal oxides such as nano antimony tin oxide and the like as fillers, but all have the defects of high manufacturing cost, low transparency and poor antifouling property, and dust and dirt are easy to adhere to the surface of a paint film after the radiation type heat insulation coatings are used for a period of time, so that the transparency of the paint film is further reduced. Therefore, the invention uses the fluorocarbon resin with low surface energy as a film forming substance and the self-made nano super-hydrophobic aerogel as a high-efficiency heat-insulating, waterproof and antifouling material, and the prepared glass coating has good heat-insulating effect and excellent waterproof and antifouling properties. Therefore, the novel nano-glass efficient heat-insulating antifouling paint is developed, meets the requirements of different customers, and has important significance for promoting energy conservation and environmental protection of buildings.
Disclosure of Invention
The invention aims to provide a novel glass super-hydrophobic transparent high-efficiency heat-insulating coating aiming at the national conditions of China. Not only can improve the heat insulation effect of the glass, but also can improve the water resistance, the pollution resistance and the self-cleaning property of the glass.
In order to achieve the purpose, the technical scheme adopted by the invention is that the novel glass super-hydrophobic transparent high-efficiency heat insulation coating and the preparation method thereof are characterized in that the coating comprises the following raw materials in parts by weight: 2400-2600 kg of water-based fluorocarbon resin (with solid content of 45-50%), 1200-1300 kg of slurry, 130-160 kg of 1053 dispersing agent, 1100-1200 kg of deionized water, 50-60 kg of P-082 defoaming agent, 35-45 kg of WT-102 thickening agent, twelve 80-90 kg of alcohol ester, 90-110 kg of flatting agent, 4-6 kg of dipropylene glycol methyl ether and 4-6 kg of dipropylene glycol butyl ether are added.
Further, the novel glass super-hydrophobic transparent efficient heat insulation coating comprises the following raw materials in parts by weight: 2500kg of aqueous fluorocarbon resin (solid content is 45-50%), 1250kg of slurry, 150kg of 1053 dispersant, 1200kg of deionized water, 60kg of P-082 defoamer, 40kg of WT-102 thickener, twelve 90kg of alcohol ester, 100kg of flatting agent, 5kg of dipropylene glycol methyl ether and 5kg of dipropylene glycol butyl ether.
Preferably, the solid content of the water-based fluorocarbon resin in the novel glass super-hydrophobic transparent efficient heat insulation coating is 50%.
The preparation method of the novel glass super-hydrophobic transparent high-efficiency heat-insulating coating comprises the following steps:
1. preparing high-light-transmission and high-heat-insulation nano aerogel powder:
a. adding 90-110 kg of ethyl orthosilicate, 90-110 kg of ethanol and 45-55 kg of deionized water into a No. 1 reaction kettle, and stirring for 10 minutes at normal temperature;
b. dripping a proper amount of hydrochloric acid within 30 minutes, adjusting the pH value to 4, heating to 60 ℃, stirring for 30 minutes, sealing and preserving heat for 3 hours to obtain sol;
c. adding 190-210 kg of sol, 390-420 kg of ethanol and 390-420 kg of N, N-dimethylformamide into a No. 2 reaction kettle, uniformly stirring, heating to 40 ℃, dropwise adding a proper amount of 5% liquid caustic soda to adjust the pH value to 8, and standing for 3 hours under heat preservation to form wet sol;
d. adding 900-1100 kg of wet sol into aging liquid formed by mixing 3800-4200 kg of ethanol, 480-520 kg of acetone, 180-520 kg of hexamethyldisilazane and 190-510 kg of methyltrimethoxysilane in a No. 3 reaction kettle, heating to 50 ℃, stirring for reacting for 3 hours, preserving heat and aging for 7 hours, and filtering liquid to obtain aged silica sol;
e. putting 980-1000 kg of aged silica sol into a drying tank, introducing carbon dioxide as a drying medium, and drying at 60 ℃ under the supercritical pressure of 15MPa for 6 hours to obtain 40-60 nm of super-hydrophobic aerogel powder.
2. Preparing nano aerogel slurry: adding 4800-5200 kg of deionized water, 680-720 kg of nano aerogel powder, 240-260 kg of KH570 silane coupling agent and 90-100 kg of PE-100 wetting dispersant into a No. 4 reaction kettle, stirring at normal temperature for 20 minutes, adjusting the pH value to 8 by using liquid alkali, and then, dispersing at high speed of 1200 revolutions per minute for 20 minutes in a dispersion machine to obtain slurry;
3. 2400-2600 kg of aqueous fluorocarbon resin (with solid content of 45-50%), 1200-1300 kg of slurry, 130-160 kg of 1053 dispersant, 1100-1200 kg of deionized water, 50-60 kg of P-082 defoamer, 35-45 kg of WT-102 modifier, twelve 80-90 kg of alcohol ester, 90-110 kg of flatting agent, 4-6 kg of dipropylene glycol methyl ether and 4-6 kg of dipropylene glycol butyl ether are added into a No. 5 reaction kettle, mixed and stirred at normal temperature for 30 minutes, the pH value is adjusted to 7, and the mixture enters a dispersion machine to be dispersed at high speed of 1500 revolutions per minute for 30 minutes to obtain the super-hydrophobic transparent efficient heat-insulating coating.
The invention has the following advantages:
1. excellent heat insulation: the absorption and reflection infrared ray is more than or equal to 88 percent, the infrared energy re-radiation rate is more than or equal to 99 percent, the energy-saving effect is obvious, the temperature difference between the two glass plates before and after coating is 13-16 ℃, and the indoor space is cooled to 8-10 ℃;
2. energy conservation and excellence: the energy damage of leakage caused by the conduction of indoor heat energy and cold air through glass is effectively prevented, the air-conditioning cost is obviously reduced, and the energy is saved by 30-35%;
3. the transparency is excellent: the visible light transmittance is 85-90%, and almost no chromatic aberration affects the vision;
4. more healthy: the paint does not contain VOC components such as bacteria, ketone, aldehyde and the like, does not contain harmful substances such as free TDI and the like, and is green, environment-friendly, ecological and healthy;
5. the durability is excellent: the paint has super strong adhesive force, super wear resistance and washing resistance of more than or equal to 10000 times;
6. excellent heat preservation: the glass heat insulation coating can effectively prevent indoor heat energy and cold air from leaking through glass conduction, keep the indoor temperature basically constant and reduce the using amount of the warm air or the cold air;
7. excellent sound insulation: the glass heat insulation coating also has the function of absorbing sound waves, effectively attenuates outdoor noise to enter a room, and keeps the indoor quiet (the noise is reduced by 25-30 decibels);
8. the construction is easy: various construction methods such as blade coating, curtain coating, spraying and the like are available, the construction is simple and convenient, no trace exists, and no lap seam exists;
9. the cost is only 35-40% of that of the hollow heat-insulating glass, the price is much lower than that of the imported nano transparent heat-insulating coating and the sticking film, the antifouling property is good, water directly bounces on the surface, and the waterproof, antifouling and dustproof effects are achieved;
10. the preparation method is simple and reasonable, can ensure the product quality, is easy to operate and has low device investment.
Detailed Description
The present invention is described in further detail below with reference to specific examples.
Example 1: a novel glass super-hydrophobic transparent high-efficiency heat insulation coating and a preparation method thereof are disclosed, and the coating comprises the following raw materials in parts by weight: 2500kg of aqueous fluorocarbon resin (solid content is 50%), 1250kg of slurry, 150kg of 1053 dispersant, 1200kg of deionized water, 60kg of P-082 defoamer, 40kg of WT-102 thickener, twelve 90kg of alcohol ester, 100kg of flatting agent, 5kg of dipropylene glycol methyl ether and 5kg of dipropylene glycol butyl ether.
The preparation method of the novel glass super-hydrophobic transparent high-efficiency heat-insulating coating comprises the following steps:
1. preparing high-light-transmission and high-heat-insulation nano aerogel powder:
a. adding 950kg of ethyl orthosilicate, 950kg of ethanol and 450kg of deionized water into a No. 1 reaction kettle, and stirring for 10 minutes at normal temperature;
b. dripping a proper amount of hydrochloric acid within 30 minutes, adjusting the pH value to 4, heating to 60 ℃, stirring for 30 minutes, sealing and preserving heat for 3 hours to obtain sol;
c. adding 190kg of sol, 390kg of ethanol and 390kgN, N-dimethylformamide into a No. 2 reaction kettle, uniformly stirring, heating to 40 ℃, dropwise adding a proper amount of 5% liquid caustic soda to adjust the pH value to 8, and standing for 3 hours under heat preservation to form wet sol;
d. adding 950kg of wet sol into ageing liquid formed by mixing 3900kg of ethanol, 490kg of acetone, 490kg of hexamethyldisilazane and 490kg of methyltrimethoxysilane in a No. 3 reaction kettle, heating to 50 ℃, stirring for reaction for 3 hours, preserving heat and ageing for 7 hours, and filtering liquid to obtain aged silica sol;
e. and (3) putting 980kg of aged silica sol into a drying tank, introducing carbon dioxide as a drying medium, and drying at 60 ℃ under the supercritical pressure of 15MPa for 6 hours to obtain 40-60 nm of super-hydrophobic aerogel powder. The contact angle is 165 degrees, the rolling angle is 2 degrees, the heat conductivity coefficient is 0.015W/m.K, and the density is 70kg/m3The light transmittance was 90%.
2. Preparing nano aerogel slurry: adding 4800kg of deionized water, 6390kg of nano aerogel powder, 240kg of KH570 silane coupling agent and 90kg of PE-100 wetting dispersant into a No. 4 reaction kettle, stirring at normal temperature for 20 minutes, adjusting the pH value to 8 by using liquid alkali, and then, dispersing at high speed of 1200 revolutions per minute for 20 minutes in a dispersion machine to obtain slurry;
3. 2500kg of aqueous fluorocarbon resin (with the solid content of 50 percent), 1250kg of slurry, 150kg of 1053 dispersant, 1200kg of deionized water, 60kg of P-082 defoamer, 40kg of WT-102 thickener, twelve 90kg of alcohol ester, 100kg of flatting agent, 5kg of dipropylene glycol methyl ether and 5kg of dipropylene glycol butyl ether are sequentially added into a No. 5 reaction kettle, mixed and stirred for 30 minutes at normal temperature, the pH value is adjusted to be 7, and the mixture enters a dispersion machine to be dispersed for 30 minutes at high speed of 1500 revolutions per minute, so that the super-hydrophobic transparent efficient heat-insulating coating is obtained.
The coating is sprayed on automobile glass, curtain wall glass and household glass, and after natural drying, the coating is tested: under the outdoor temperature of 35-40 ℃, the temperature difference between the two coated glass plates is 13-16 ℃, the adhesive force is 1 grade, the hardness is 3H, the contact angle of the coating reaches 155 degrees, the rolling angle is 3 degrees, the light transmittance is 88 percent, water directly bounces on the coating, and the coating has good effects of water resistance, dirt resistance and dust resistance.
Example 2: a novel glass super-hydrophobic transparent high-efficiency heat insulation coating and a preparation method thereof are disclosed, and the coating comprises the following raw materials in parts by weight: 2600kg of aqueous fluorocarbon resin (with the solid content of 50 percent), 1300kg of slurry, 150kg of 1053 dispersant, 1150kg of deionized water, 65kg of P082 defoamer, 45kg of WT-102 thickener, twelve 100kg of alcohol ester, 95kg of flatting agent, 5kg of dipropylene glycol methyl ether and 5kg of dipropylene glycol butyl ether.
The preparation method of the novel glass super-hydrophobic transparent high-efficiency heat-insulating coating comprises the following steps:
1. preparing high-light-transmission and high-heat-insulation nano aerogel powder:
a. 980kg of ethyl orthosilicate, 980kg of ethanol and 480kg of deionized water are added into a No. 1 reaction kettle, and stirring is carried out for 10 minutes at normal temperature;
b. dripping a proper amount of hydrochloric acid within 30 minutes, adjusting the pH value to 4, heating to 60 ℃, stirring for 30 minutes, sealing and preserving heat for 3 hours to obtain sol;
c. adding 200kg of sol, 400kg of ethanol and 400kg of N, N-dimethylformamide into a No. 2 reaction kettle, uniformly stirring, heating to 40 ℃, dropwise adding a proper amount of 5% liquid caustic soda to adjust the pH value to 8, and standing for 3 hours under heat preservation to form wet sol;
d. adding 980kg of wet sol into an aging solution prepared by mixing 4000kg of ethanol, 500kg of acetone, 500kg of hexamethyldisilazane and 500kg of methyltrimethoxysilane in a No. 3 reaction kettle, heating to 50 ℃, stirring for reaction for 3 hours, preserving heat and aging for 7 hours, and filtering out liquid to obtain aged silica sol;
e. and (3) putting 980kg of aged silica sol into a drying tank, introducing carbon dioxide as a drying medium, and drying at 60 ℃ under the supercritical pressure of 15MPa for 6 hours to obtain 40-60 nm of super-hydrophobic aerogel powder. The contact angle is 166 degrees, the rolling angle is 2 degrees, the heat conductivity coefficient is 0.014W/m.K, and the density is 69 kg/m.3The light transmittance was 88%.
2. Preparing nano aerogel slurry: adding 5000kg of deionized water, 700kg of nano aerogel powder, 250kg of KH570 silane coupling agent and 200kg of PE-100 wetting dispersant into a No. 4 reaction kettle, stirring at normal temperature for 20 minutes, adjusting the pH value to 8 by using liquid alkali, and then, dispersing at high speed of 1200 revolutions per minute for 20 minutes in a dispersion machine to obtain slurry;
3. 2600kg of aqueous fluorocarbon resin (with the solid content of 50 percent), 1300kg of slurry, 150kg of 1053 dispersant, 1150kg of deionized water, 65kg of P-082 defoamer, 45kg of WT-102 thickener, twelve 100kg of alcohol ester, 905kg of flatting agent, 5kg of dipropylene glycol methyl ether and 5kg of dipropylene glycol butyl ether are sequentially added into a No. 5 reaction kettle, mixed and stirred for 30 minutes at normal temperature, the pH value is adjusted to be 7, and the mixture enters a dispersion machine to be dispersed for 30 minutes at high speed of 1500 revolutions per minute, so that the super-hydrophobic transparent efficient heat-insulating coating is obtained.
The coating is sprayed on automobile glass, curtain wall glass and household glass, and after natural drying, the coating is tested: under the outdoor temperature of 3510 ℃, the temperature difference between the two coated glass plates is 13-16 ℃, the adhesive force is 1 grade, the hardness is 3H, the contact angle of the coating reaches 157 degrees, the rolling angle is 2 degrees, the light transmittance is 88 percent, water directly bounces on the coating, and the coating has good effects of water resistance, dirt resistance and dust resistance.
Example 3: a novel glass super-hydrophobic transparent high-efficiency heat insulation coating and a preparation method thereof are disclosed, and the coating comprises the following raw materials in parts by weight: 2550kg of aqueous fluorocarbon resin (with the solid content of 50 percent), 1250kg of slurry, 145kg of 1053 dispersant, 1100kg of deionized water, 60kg of P-082 defoamer, 45kg of WT-102 thickener, twelve 95kg of alcohol ester, 95kg of flatting agent, 5kg of dipropylene glycol methyl ether and 5kg of dipropylene glycol butyl ether.
The preparation method of the novel glass super-hydrophobic transparent high-efficiency heat-insulating coating comprises the following steps:
1. preparing high-light-transmission and high-heat-insulation nano aerogel powder:
a. adding 1000kg of ethyl orthosilicate, 1000kg of ethanol and 500kg of deionized water into a No. 1 reaction kettle, and stirring for 10 minutes at normal temperature;
b. dripping a proper amount of hydrochloric acid within 30 minutes, adjusting the pH value to 4, heating to 60 ℃, stirring for 30 minutes, sealing and preserving heat for 3 hours to obtain sol;
c. adding 210kg of sol, 420kg of ethanol and 420kgN, N-dimethylformamide into a No. 2 reaction kettle, uniformly stirring, heating to 40 ℃, dropwise adding a proper amount of 5% liquid alkali to adjust the pH value to 8, and standing for 3 hours under the condition of heat preservation to form wet sol;
d. adding 1000kg of wet sol into aging liquid formed by mixing 4200kg of ethanol, 520kg of acetone, 520kg of hexamethyldisilazane and 520kg of methyltrimethoxysilane in a No. 3 reaction kettle, heating to 50 ℃, stirring and reacting for 3 hours, preserving heat and aging for 7 hours, and filtering liquid to obtain aged silica sol;
e. 1000kg of aged silica sol is put into a drying tank, carbon dioxide is filled as a drying medium, and the silica sol is dried for 6 hours at 60 ℃ under the supercritical pressure of 15MPaAnd obtaining the 40-60 nanometer super-hydrophobic aerogel powder. The contact angle is 168 degrees, the rolling angle is 1 degree, the heat conductivity coefficient is 0.013W/m.K, the density is 67kg/m3The light transmittance was 86%.
2. Preparing nano aerogel slurry: adding 5200kg of deionized water, 720kg of nano aerogel powder, 260kg of KH570 silane coupling agent and 220kg of PE-100 wetting dispersant into a No. 4 reaction kettle, stirring at normal temperature for 20 minutes, adjusting the pH value to 8 by using liquid alkali, and then, dispersing at high speed of 1200 revolutions per minute for 20 minutes in a dispersion machine to obtain slurry;
3. 2550kg of aqueous fluorocarbon resin (with the solid content of 50 percent), 1250kg of slurry, 145kg of 1053 dispersing agent, 1100kg of deionized water, 60kg of P-082 defoaming agent, 45kg of WT-102 thickening agent, twelve 95kg of alcohol ester, 95kg of flatting agent, 5kg of dipropylene glycol methyl ether and 5kg of dipropylene glycol butyl ether are sequentially added into a No. 5 reaction kettle, mixed and stirred at normal temperature for 30 minutes, the pH value is adjusted to 7, and the mixture enters a dispersion machine to be dispersed at high speed of 1500 revolutions per minute for 30 minutes to obtain the super-hydrophobic transparent efficient heat-insulating coating.
The coating is sprayed on automobile glass, curtain wall glass and household glass, and after natural drying, the coating is tested: under the outdoor temperature of 35-40 ℃, the temperature difference between the two coated glass plates is 13-16 ℃, the adhesive force is 1 grade, the hardness is 3H, the contact angle of the coating reaches 158 degrees, the rolling angle is 2 degrees, the light transmittance is 87 percent, water directly bounces on the coating, and the coating has good effects of water resistance, dirt resistance and dust resistance.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and it will be apparent to those skilled in the art that various modifications and variations can be made in the spirit and principle of the present invention and that equivalent modifications and substitutions and the like are included in the scope of the present invention.
Claims (5)
1. A novel glass super-hydrophobic transparent high-efficiency heat insulation coating and a preparation method thereof are characterized in that the coating comprises the following raw materials by weight: 2400-2600 kg of water-based fluorocarbon resin (with solid content of 45-50%), 1200-1300 kg of slurry, 1100-1300 kg of deionized water, 130-160 kg of 1053 dispersant, 50-70 kg of DP-082 defoaming agent, 30-50 kg of WT-102 thickener, twelve 80-100 kg of alcohol ester, 90-110 kg of flatting agent, 4-6 kg of dipropylene glycol methyl ether and 4-6 kg of dipropylene glycol butyl ether.
2. The novel glass super-hydrophobic transparent efficient thermal insulation coating as claimed in claim 1, is characterized in that the raw materials by weight are as follows: 2400-2600 kg of water-based fluorocarbon resin (with solid content of 45-50%), 1200-1300 kg of slurry, 1100-1300 kg of deionized water, 130-160 kg of 1053 dispersant, 50-70 kg of DP-082 defoaming agent, 30-50 kg of WT-102 thickener, twelve 80-100 kg of alcohol ester, 90-110 kg of flatting agent, 4-6 kg of dipropylene glycol methyl ether and 4-6 kg of dipropylene glycol butyl ether.
3. The novel glass super-hydrophobic transparent high-efficiency heat insulation coating as claimed in claim 1 or 2, wherein the preparation process of the high-light-transmittance high-heat-insulation nano aerogel powder is as follows: a. adding 100kg of ethyl orthosilicate, 100kg of ethanol and 50kg of deionized water into a No. 1 reaction kettle, and stirring for 10 minutes at normal temperature; b. dripping a proper amount of hydrochloric acid within 30 minutes, adjusting the pH value to 4, heating to 60 ℃, stirring for 30 minutes, sealing and preserving heat for 3 hours to obtain sol; c. adding 200kg of sol, 400kg of ethanol and 400kg of N, N-dimethylformamide into a No. 2 reaction kettle, uniformly stirring, heating to 40 ℃, dropwise adding a proper amount of 5% liquid caustic soda to adjust the pH value to 8, and standing for 3 hours under heat preservation to form wet sol; d. adding 1000kg of wet sol into an aging solution prepared by mixing 4000kg of ethanol, 500kg of acetone, 500kg of hexamethyldisilazane and 500kg of methyltrimethoxysilane in a No. 3 reaction kettle, stirring and reacting for 3 hours at 50 ℃, preserving heat and aging for 7 hours, and filtering out liquid to obtain 980kg of aged silica sol; e. and (3) putting 980kg of aged silica sol into a drying tank, and flushing carbon dioxide as a drying medium, and drying at 60 ℃ under the supercritical pressure of 15MPa for 6 hours to obtain 40-60 nm of super-hydrophobic aerogel powder.
4. The novel glass superhydrophobic transparent high-efficiency thermal insulation coating according to claim 1 or 2, characterized in that the preparation process of the nano aerogel slurry is as follows: 5000kg of deionized water, 700kg of nano aerogel, 250kg of KH570 silane coupling agent and 100kg of PE-100 wetting dispersant are added into a No. 4 reaction kettle, stirred at normal temperature for 20 minutes, adjusted in pH value to 8 by using liquid alkali, and then dispersed in a dispersion machine at high speed of 1200 rpm for 20 minutes to obtain slurry.
5. The novel glass superhydrophobic transparent high-efficiency thermal insulation coating according to claim 1 or 2, wherein the 1053 dispersing agent (Shanghai Yongyan chemical technology Co., Ltd.), DP-082 defoaming agent (Shanghai Kaiyn chemical Co., Ltd.), WT-102 thickening agent (Yougu chemical Co., Ltd., Fushan City) are commercially available.
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| CN115991946A (en) * | 2021-10-20 | 2023-04-21 | 王海生 | Sun-proof spray for vehicle |
| CN116082955A (en) * | 2021-11-08 | 2023-05-09 | 西安立远新材料科技开发有限公司 | Organic glass wear-resistant transparent film material for aircraft and preparation method thereof |
| CN116376371A (en) * | 2023-04-11 | 2023-07-04 | 北京恒昕智达科技有限公司 | Wear-resistant paint and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115991946A (en) * | 2021-10-20 | 2023-04-21 | 王海生 | Sun-proof spray for vehicle |
| CN116082955A (en) * | 2021-11-08 | 2023-05-09 | 西安立远新材料科技开发有限公司 | Organic glass wear-resistant transparent film material for aircraft and preparation method thereof |
| CN116376371A (en) * | 2023-04-11 | 2023-07-04 | 北京恒昕智达科技有限公司 | Wear-resistant paint and preparation method thereof |
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