CN110964414A - Evaporative heat-dissipation cooling intelligent coating and preparation method and application thereof - Google Patents
Evaporative heat-dissipation cooling intelligent coating and preparation method and application thereof Download PDFInfo
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- CN110964414A CN110964414A CN201911154479.3A CN201911154479A CN110964414A CN 110964414 A CN110964414 A CN 110964414A CN 201911154479 A CN201911154479 A CN 201911154479A CN 110964414 A CN110964414 A CN 110964414A
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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
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
- C09D167/04—Polyesters derived from hydroxycarboxylic acids, e.g. lactones
Abstract
The invention belongs to the field of novel functional environment-friendly materials, and particularly discloses an evaporative heat-dissipation cooling intelligent coating, and a preparation method and application thereof. The evaporative heat-dissipation cooling intelligent coating comprises the following components in parts by mass: 5-30% of tetrabutyl titanate, 2-10% of lactic acid, 10-20% of organic solvent, 40-83% of water and 1-5% of waterborne polyurethane. The coating can convert solar radiation energy into chemical energy, convert a coating of the coating into a super-hydrophilic state, maximize spreading and leveling of water on the surface of the coating, fully play the role of evaporation and cooling and realize the reduction of the temperature by 4-8 ℃. The evaporative heat dissipation and cooling intelligent coating for the outer wall of the building, which is provided by the invention, is expected to solve the design and application problems of passive evaporation and cooling of the building.
Description
Technical Field
The invention belongs to the field of novel functional environment-friendly materials, and particularly relates to an evaporative heat-dissipation cooling intelligent coating, and a preparation method and application thereof.
Technical Field
The passive evaporation cooling of the building is one of the very practical design technologies in urban planning, residential area planning and building design, can adjust urban microclimate, reduce heat island strength, improve physical environment of the building, greatly reduce air conditioner energy consumption of the building, and is an economic, effective and once-for-all optimal choice. However, from the application point of view, passive evaporative cooling is a design technique, which needs to be simple and direct and convenient for planners and architects to use. The water evaporation cooling is a common natural phenomenon, and the cooling of the building envelope structure by utilizing the water evaporation cooling principle is an exciting passive building technology. The evaporative cooling of the building is a technology for realizing passive cooling of the building envelope structure based on the evaporative cooling phenomenon. The theoretical core of this technology is that evaporation of water consumes a large amount of solar energy to reduce the amount of heat transferred into the building. As can be seen from both theoretical and experimental studies, evaporative cooling technology has attracted great interest in the field of construction technology as an excellent method for building heat protection. Space refrigeration, which occupies one tenth of the energy consumption of the world, also has a bad impact on the environment. In 2016 only, it caused 1045 metric tons of carbon dioxide emissions. According to the international energy agency's estimate, the percentage of cooling in the global total energy demand will rise to 37% by the year 2050. Hydrofluorocarbon (HFC) refrigerants on which air conditioning units operate are particularly harmful to the environment. Although hydrofluorocarbons represent only 1% of greenhouse gas emissions, they do have thousands of times the destructive power of carbon dioxide.
Under the conditions of energy shortage and the pursuit of future sustainable artificial environment control by people, finding out an evaporative heat dissipation and cooling intelligent coating which is safe, environment-friendly, low in cost and easy to construct and can be used for building exterior walls is a problem to be solved urgently.
Disclosure of Invention
In order to solve the problems of the prior art, the invention mainly aims to provide an evaporative heat-dissipation cooling intelligent coating.
The invention also aims to provide a preparation method of the evaporative heat-dissipation cooling intelligent coating;
the invention further aims to provide application of the evaporative heat-dissipation cooling intelligent coating in building exterior walls.
The invention further aims to provide the evaporative heat-dissipation and cooling intelligent coating prepared from the evaporative heat-dissipation and cooling intelligent coating.
In order to realize the purpose, the invention adopts the following technical scheme:
an evaporative heat-dissipation cooling intelligent coating comprises the following components in parts by mass:
the organic solvent is at least one of ethanol, isopropanol and methanol. The waterborne polyurethane is nonionic waterborne polyurethane.
A preparation method of the evaporative heat-dissipation cooling intelligent coating comprises the following specific steps:
uniformly mixing lactic acid, an organic solvent and water, adding tetrabutyl titanate, stirring for reaction, adding waterborne polyurethane after the reaction is finished, and mixing to obtain the evaporative heat-dissipation cooling intelligent coating.
The mixing is preferably carried out at 50-80 ℃; the stirring reaction is preferably carried out at 50 to 80 ℃ for 2 to 12 hours.
The evaporative heat-dissipation cooling intelligent coating is applied to the outer wall of a building. Preferably, the building outer wall is an outer wall and a surrounding enclosure made of materials such as glass, ceramics, stone, wood products or plastics.
The evaporative heat dissipation and cooling intelligent coating is prepared by the coating, and specifically, the evaporative heat dissipation and cooling intelligent coating is coated in an outer wall of a building and dried to obtain the evaporative heat dissipation and cooling intelligent coating.
The thickness of the evaporative heat dissipation and cooling intelligent coating is 0.1-10 mu m.
The invention has the beneficial effects that:
the invention relates to a safe, environment-friendly, low-cost and easy-to-construct evaporative heat-dissipation cooling intelligent coating for building exterior walls, which is prepared by air-drying the coating, irradiating the coating by sunlight to convert solar radiation energy into chemical energy, converting the coating into a super-hydrophilic state, spreading water on the surface of the coating to the maximum extent and leveling the coating, and fully playing the roles of evaporation and cooling. Fig. 1 is a diagram of the heat dissipation mechanism of the present invention. The evaporative heat dissipation and cooling intelligent coating for the outer wall of the building, which is provided by the invention, is expected to solve the design and application problems of passive evaporation and cooling of the building.
Drawings
Fig. 1 is a diagram of the heat dissipation mechanism of the present invention.
FIG. 2(a) is a graph showing the comparison of surface wettability before and after the application of the functional nanocoating on the slide glass based on the spray treatment in example 1, (b) is an optical photograph of the surface of the blank slide glass irradiated in example 1 with respect to water contact angle, and (c) is an optical photograph of the surface of the functional nanocoating modified slide glass irradiated in example 1 with respect to water contact angle.
Detailed Description
The present invention will be further described and illustrated with reference to the following specific embodiments and drawings, but the present invention is not limited to the scope of application and the scope of application.
The nonionic aqueous polyurethane was purchased from Guangzhou New Material science and technology, Inc., model No. PU-608.
Example 1
Adding 5g of lactic acid, 10g of ethanol and 75g of water into a reaction vessel, starting stirring and heating, raising the temperature to 60 ℃, dropwise adding 10g of tetrabutyl titanate into the reaction vessel, continuously keeping the temperature at 60 ℃, stirring and reacting for 8 hours to obtainSuper hydrophilic coating. And adding 1% of nonionic aqueous polyurethane adhesive into the prepared super-hydrophilic coating, uniformly mixing, coating on a glass slide, and drying to obtain the evaporative heat-dissipation cooling intelligent coating. Passing through the sun (ultraviolet UVA intensity is 1.0 mW/cm)2) And irradiating for 30 minutes to obtain the super-hydrophilic heat dissipation coating (3-5 mu m). Slides without any treatment were used as blank.
Fig. 2(a) is a comparison of the wettability of the glass slide surface before and after coating with the functional nanocoating layer obtained in example 1 (left side is the light-treated blank untreated surface and right side is the light-treated coated functional nanocoating layer), (b) is an optical photograph of the light-treated blank glass slide surface at a water contact angle (contact angle measurement is 37 °), and (c) is an optical photograph of the light-treated functional nanocoating layer modified glass slide surface at a water contact angle (contact angle is 0 °).
Example 2
Adding 5g of lactic acid, 10g of ethanol and 75g of water into a reaction vessel, starting stirring and heating, raising the temperature to 60 ℃, dropwise adding 10g of tetrabutyl titanate into the reaction vessel, continuously keeping the temperature at 60 ℃, stirring and reacting for 8 hours to obtain the super-hydrophilic coating. Adding 1% of nonionic waterborne polyurethane adhesive into the prepared super-hydrophilic coating, uniformly mixing, coating on a building model covered by all glass, and drying to form an evaporative heat-dissipation cooling intelligent coating. Passing through the sun (ultraviolet UVA intensity is 1.0 mW/cm)2) And irradiating for 30 minutes to obtain the super-hydrophilic heat dissipation coating (5-10 mu m). In the irradiation process, the hydrophobic glass surface can be changed into super-hydrophilic, so that the evaporation, heat dissipation and cooling effects are exerted to the maximum extent in the air flow, the cooling effect is obvious, two identical full glasses cover the building model, and the building model treated by the intelligent evaporative cooling coating can be reduced by 4-8 ℃ compared with the building model not treated under the same condition.
Example 3
Adding 8g of lactic acid, 20g of ethanol and 52g of water into a reaction vessel, starting stirring and heating, raising the temperature to 80 ℃, dropwise adding 20g of tetrabutyl titanate into the reaction vessel, continuously keeping the temperature of 80 ℃, stirring and reacting for 12 hours to obtain the super-hydrophilic coating. In that1% of non-ionic waterborne polyurethane is added into the prepared super-hydrophilic coating, the mixture is uniformly mixed and sprayed on a building model of a wooden board, and an evaporative heat dissipation and cooling intelligent coating is formed after drying. Passing through the sun (the UVA intensity of the ultraviolet light is 1.0 mW/cm)2) And irradiating for 30 minutes to obtain the super-hydrophilic heat dissipation coating (3-5 mu m). In the forming process, the surface of the hydrophobic wood board is changed into super-hydrophilic, so that the evaporation, heat dissipation and cooling effects are exerted to the maximum extent in the air flow, the cooling effect is obvious, and the building model treated by the intelligent evaporative cooling coating can be reduced by 4-8 ℃ compared with the building model not treated by the two same wood board building models under the same condition.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (7)
1. An evaporative heat-dissipation cooling intelligent coating is characterized by comprising the following components in percentage by mass: 5-30% of tetrabutyl titanate, 2-10% of lactic acid, 10-20% of organic solvent, 40-83% of water and 1-5% of waterborne polyurethane.
2. The evaporative heat-dissipation cooling intelligent coating as claimed in claim 1, wherein the evaporative heat-dissipation cooling intelligent coating comprises: the organic solvent is at least one of ethanol, isopropanol and methanol; the waterborne polyurethane is nonionic waterborne polyurethane.
3. A method for preparing the evaporative heat-dissipation cooling intelligent coating as claimed in claim 1 or 2, which is characterized by comprising the following steps:
uniformly mixing lactic acid, an organic solvent and water, adding tetrabutyl titanate, stirring for reaction, adding waterborne polyurethane after the reaction is finished, and mixing to obtain the evaporative heat-dissipation cooling intelligent coating.
4. The method for preparing the evaporative heat-dissipation cooling intelligent coating according to claim 3, wherein the method comprises the following steps: the stirring reaction is carried out for 2-12 hours at 50-80 ℃.
5. The application of the evaporative heat-dissipation cooling intelligent coating according to claim 1 or 2 in an exterior wall of a building.
6. An evaporative heat-dissipation cooling intelligent coating prepared from the coating of claim 1 or 2, which is characterized by comprising the following components in part by weight: and coating the evaporative heat dissipation and cooling intelligent coating on the outer wall of the building, and drying to obtain the evaporative heat dissipation and cooling intelligent coating.
7. The evaporative heat dissipation and cooling smart coating of claim 6, wherein: the thickness of the evaporative heat dissipation and cooling intelligent coating is 0.1-10 mu m.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10185488A (en) * | 1996-10-31 | 1998-07-14 | Osaka Gas Co Ltd | Method for reforming surface of heating tube for evaporator and evaporator and cooler |
| CN101318694A (en) * | 2008-06-20 | 2008-12-10 | 浙江大学 | Method for preparing titanium dioxide nanocrystalline with highlight catalytic activity in low-temperature |
| CN101921379A (en) * | 2010-04-16 | 2010-12-22 | 江苏大学 | Method for preparing aqueous polyurethane/nano titanium dioxide hybrid material |
| CN102226665A (en) * | 2011-05-17 | 2011-10-26 | 西安工程大学 | Method for improving heat and moisture transfer efficiency of tubular indirect evaporative cooler |
| CN104059420A (en) * | 2014-05-22 | 2014-09-24 | 张扬 | Nano-paste, self-cleaning coating liquid and thermal insulating coating liquid as well as transparent substrates and preparation methods thereof |
| CN108385912A (en) * | 2018-03-09 | 2018-08-10 | 北京航空航天大学 | New Building Materials based on nano-titanium dioxide and its manufacture craft |
-
2019
- 2019-11-22 CN CN201911154479.3A patent/CN110964414A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10185488A (en) * | 1996-10-31 | 1998-07-14 | Osaka Gas Co Ltd | Method for reforming surface of heating tube for evaporator and evaporator and cooler |
| CN101318694A (en) * | 2008-06-20 | 2008-12-10 | 浙江大学 | Method for preparing titanium dioxide nanocrystalline with highlight catalytic activity in low-temperature |
| CN101921379A (en) * | 2010-04-16 | 2010-12-22 | 江苏大学 | Method for preparing aqueous polyurethane/nano titanium dioxide hybrid material |
| CN102226665A (en) * | 2011-05-17 | 2011-10-26 | 西安工程大学 | Method for improving heat and moisture transfer efficiency of tubular indirect evaporative cooler |
| CN104059420A (en) * | 2014-05-22 | 2014-09-24 | 张扬 | Nano-paste, self-cleaning coating liquid and thermal insulating coating liquid as well as transparent substrates and preparation methods thereof |
| CN108385912A (en) * | 2018-03-09 | 2018-08-10 | 北京航空航天大学 | New Building Materials based on nano-titanium dioxide and its manufacture craft |
Non-Patent Citations (7)
| Title |
|---|
| 刘吉平等: "《纺织科学中的纳米技术》", 31 May 2003, 中国纺织出版社 * |
| 刘清钊: "溶胶改性外墙抗污乳胶涂料的研究", 《中国优秀硕士学位论文全文数据库工程科技I辑》 * |
| 廖晓玲等: "《材料化学基础实验指导》", 28 February 2015, 冶金工业出版社 * |
| 林倩倩等: "利用超亲水材料进行构筑物温度调节的应用研究", 《化学与生物工程》 * |
| 沈春林: "《建筑涂料手册》", 31 March 2002, 中国建筑工业出版社 * |
| 蓝德均: "《基础化学实验》", 31 December 2016, 北京理工大学出版社 * |
| 贺劼: "日企利用二氧化钛给建筑降温", 《建设科技》 * |
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