阅读说明：本技术 一种应用于中空玻璃的隔热涂层 (Heat insulation coating applied to hollow glass ) 是由 林嘉宏 于 2019-10-28 设计创作，主要内容包括：本发明提出了一种应用于中空玻璃的隔热涂层,制备方法包括,向去离子水中加入硝酸锌和四氯化钛,升温反应后加入聚乙二醇-2000,搅拌均匀滴加氨水,得到第一前驱体悬浊液,再通过超声分散反应得到第二前驱体悬浊液,过滤洗涤后置于正丁醇中,升温超声分散反应得到纳米功能粒子,将纳米功能里子与去离子水、分散剂混合分散均匀得到浆料,浆料与苯丙乳液混合均匀后涂覆在玻璃表面固化得到隔热涂层,本发明的制备方法简单,所得的隔热涂层不仅对红外线有良好的组个效果,同时对特定波段的紫外线也有良好的组个效果,且可见光的透过率高,具有良好的应用前景。(The invention provides a heat insulation coating applied to hollow glass, which is prepared by adding zinc nitrate and titanium tetrachloride into deionized water, adding polyethylene glycol-2000 after heating reaction, stirring uniformly and dropwise adding ammonia water to obtain a first precursor suspension, performing ultrasonic dispersion reaction to obtain a second precursor suspension, filtering and washing, placing in n-butyl alcohol, heating up and carrying out ultrasonic dispersion reaction to obtain nano functional particles, uniformly mixing and dispersing the nano functional liner with deionized water and a dispersing agent to obtain slurry, uniformly mixing the slurry with styrene-acrylic emulsion, coating the mixture on the surface of glass, and curing to obtain the heat insulation coating, wherein the preparation method is simple, the obtained heat insulation coating not only has good group effect on infrared rays, meanwhile, the ultraviolet light source has good group effect on ultraviolet rays in specific wave bands, and has high visible light transmittance and good application prospect.)

1. A thermal insulation coating applied to hollow glass is characterized in that the preparation method of the thermal insulation coating comprises the following steps:

step one, adding zinc nitrate and titanium tetrachloride into deionized water, mixing and stirring for 10-20min, heating to 50-65 ℃, adding polyethylene glycol-2000, uniformly stirring, dropwise adding ammonia water until a precipitate appears, and continuously dropwise adding until the pH value is 7-9 to obtain a first precursor suspension;

step two, ultrasonically dispersing the first precursor suspension obtained in the step one for 10-20min, keeping the temperature at 50-65 ℃, and continuously reacting for 20-50min to obtain a second precursor suspension;

step three, separating the second precursor suspension obtained in the step two to obtain a precursor, washing the precursor for 2 to 4 times by using deionized water, then placing the washed precursor into n-butyl alcohol, performing ultrasonic dispersion for 20 to 40min at 90 to 100 ℃, heating to 110 ℃ to 120 ℃, performing ultrasonic dispersion for 20 to 40min, and drying at 500 ℃ to 800 ℃ for 10 to 14h to obtain nano functional particles;

step four, mixing the nano functional particles prepared in the step three, deionized water and a dispersing agent, and performing ultrasonic dispersion for 10-20min to obtain nano functional particle slurry;

and step five, uniformly mixing the nano functional particle slurry prepared in the step four with the styrene-acrylic emulsion, uniformly coating the mixture on the surface of the glass substrate, putting the glass substrate into an oven, and curing at the temperature of 200-220 ℃ to form a film so as to obtain the heat-insulating coating.

2. The thermal barrier coating applied to insulating glass according to claim 1, wherein in the first step, the ratio of zinc nitrate: titanium tetrachloride: polyethylene glycol-2000: the mass ratio of water is 1: (0.02-0.2): (1-3): (200-300).

3. The thermal barrier coating applied to hollow glass according to claim 1, wherein in step three, the ratio of zinc nitrate: the mass ratio of n-butanol is 1: (40-100).

4. The thermal barrier coating applied to hollow glass according to claim 1, wherein in the fourth step, the nano-functional particles: deionized water: the mass ratio of the dispersing agent is 1: (20-50): (4-8).

5. The thermal barrier coating applied to hollow glass according to claim 1, wherein in the fourth step, the dispersant is one or a mixture of sodium dodecyl benzene sulfonate, sodium polyacrylate, sodium hexametaphosphate and sodium citrate.

6. The thermal barrier coating applied to insulating glass according to claim 1, wherein in step five, the functional particle slurry: the volume ratio of the styrene-acrylic emulsion is 1: (0.8-1.2).

7. The thermal barrier coating applied to insulating glass according to claim 1, wherein the curing time in the fifth step is 1 to 2 hours.

8. The thermal barrier coating applied to an insulating glass according to claim 1, wherein in the fifth step, the uniform coating has a thickness of 1 to 5 μm.

Technical Field

The invention relates to the technical field of hollow glass production, in particular to a heat insulation coating applied to hollow glass.

Background

Hollow glass is a novel building material with good sound insulation, thermal-insulated effect, and it adopts two glass centre gripping frames to form, and hollow structure can not only effectively block the transmission of sound, can also effectively completely cut off the heat transfer simultaneously to play good heat insulation effect, consequently hollow glass has special value in building is used.

The hollow glass is widely applied to the construction of a sunlight room, and has good light transmittance and good heat insulation effect which are required by the sunlight room, but the effects of the hollow glass on blocking ultraviolet rays and infrared rays are poor, and if a film coating mode is adopted, the light transmittance of the hollow glass is reduced, so that the filtering performance of the hollow glass on light rays is improved by adopting a coating mode.

Disclosure of Invention

In view of the above, the invention provides a heat insulation coating applied to hollow glass, which has good heat insulation effect, high light transmittance and higher infrared and ultraviolet blocking capabilities.

The technical scheme of the invention is realized as follows: the invention provides a heat insulation coating applied to hollow glass, which is characterized in that the preparation method of the heat insulation coating comprises the following steps:

step one, adding zinc nitrate and titanium tetrachloride into deionized water, mixing and stirring for 10-20min, heating to 50-65 ℃, adding polyethylene glycol-2000, uniformly stirring, dropwise adding ammonia water until a precipitate appears, and continuously dropwise adding until the pH value is 7-9 to obtain a first precursor suspension;

step two, ultrasonically dispersing the first precursor suspension obtained in the step one for 10-20min, keeping the temperature at 50-65 ℃, and continuously reacting for 20-50min to obtain a second precursor suspension;

step three, separating the second precursor suspension obtained in the step two to obtain a precursor, washing the precursor for 2 to 4 times by using deionized water, then placing the washed precursor into n-butyl alcohol, performing ultrasonic dispersion for 20 to 40min at 90 to 100 ℃, heating to 110 ℃ to 120 ℃, performing ultrasonic dispersion for 20 to 40min, and drying at 500 ℃ to 800 ℃ for 10 to 14h to obtain nano functional particles;

step four, mixing the nano functional particles prepared in the step three, deionized water and a dispersing agent, and performing ultrasonic dispersion for 10-20min to obtain nano functional particle slurry;

and step five, uniformly mixing the nano functional particle slurry prepared in the step four with the styrene-acrylic emulsion, uniformly coating the mixture on the surface of the glass substrate, putting the glass substrate into an oven, and curing at the temperature of 200-220 ℃ to form a film so as to obtain the heat-insulating coating.

On the basis of the above technical solution, preferably, in the step one, the ratio of zinc nitrate: titanium tetrachloride: polyethylene glycol-2000: the mass ratio of water is 1: (0.02-0.2): (1-3): (200-300).

On the basis of the above technical solution, preferably, in step three, the ratio of zinc nitrate: the mass ratio of n-butanol is 1: (40-100).

On the basis of the above technical solution, preferably, in step four, the nano-functional particles: deionized water: the mass ratio of the dispersing agent is 1: (20-50): (4-8).

More preferably, in the fourth step, the dispersant is one or a mixture of several of sodium dodecyl benzene sulfonate, sodium polyacrylate, sodium hexametaphosphate and sodium citrate.

On the basis of the above technical solution, preferably, in step five, the functional particle slurry: the volume ratio of the styrene-acrylic emulsion is 1: (0.8-1.2).

On the basis of the technical scheme, the curing time in the step five is preferably 1-2 h.

On the basis of the above technical solution, preferably, in the fifth step, the thickness of the uniform coating is 1 to 5 μm.

Compared with the prior art, the heat insulation coating applied to the hollow glass has the following beneficial effects:

the preparation method of the heat insulation coating of the hollow glass is simple, the obtained heat insulation coating has good blocking capability on conventional infrared rays, has good blocking capability on ultraviolet rays in a specific waveband, does not influence the passing rate of visible light, has better protection effect compared with the common heat insulation coating on the market, and unexpectedly, the glass with the heat insulation coating has good wear resistance, which is probably related to the nano functional particles generated in the invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.