CN107587633B - Glass with self-cleaning function, preparation method thereof and wall body - Google Patents
Glass with self-cleaning function, preparation method thereof and wall body Download PDFInfo
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- CN107587633B CN107587633B CN201710851375.2A CN201710851375A CN107587633B CN 107587633 B CN107587633 B CN 107587633B CN 201710851375 A CN201710851375 A CN 201710851375A CN 107587633 B CN107587633 B CN 107587633B
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Abstract
The invention discloses glass with a self-cleaning function and a manufacturing method thereof, wherein the glass comprises two glass units, each glass unit comprises a substrate and a nano layer coated on one side of the substrate, the nano layer is formed by mutually connecting rugby-ball-shaped nano particles, a gap is formed between the nano layer and the substrate, and a hydrophobic layer is arranged at the end part of the nano particles far away from the substrate; the two glass units are oppositely arranged, a vacuum cavity is formed between the substrates, and the nano layer is positioned on the outer side of the vacuum cavity. The glass has a self-cleaning function and good heat insulation and preservation effects. Simultaneously, the wall body containing the glass is also provided, so that the glass has a self-cleaning function.
Description
Technical Field
The invention relates to glass, in particular to glass with a self-cleaning function, a preparation method thereof and a wall body.
Background
The main component of the existing glass is silicon dioxide. In modern buildings, glass is used more and more widely. The glass curtain wall is used, so that the building appearance is richer and more attractive. Meanwhile, the glass has good light transmission and good visual field. However, in the existing building outer wall, because the glass is not easy to detach, the cleaning personnel often climb to clean the outer surface of the building outer wall. On the one hand, this is detrimental to the personal safety of the cleaning personnel and, on the other hand, the cleaning efficiency is low. Meanwhile, even if a cleaner cleans with a cleaning agent, water stains are inevitably left.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the glass has the self-cleaning function and has good heat insulation and preservation effects.
In order to solve the technical problem, the glass with the self-cleaning function comprises two glass units, wherein each glass unit comprises a substrate and a nano layer coated on one side of the substrate, the nano layer is formed by mutually connecting rugby-ball-shaped nano particles, a gap is formed between the nano layer and the substrate, and a hydrophobic layer is arranged at the end part, far away from the substrate, of each nano particle; the two glass units are oppositely arranged, a vacuum cavity is formed between the substrates, and the nano layer is positioned on the outer side of the vacuum cavity.
As a preferred example, in the nano layer, the nano particles are vertically arranged, and the middle parts of the nano particles are connected with each other.
Preferably, a gap is formed between the nanoparticle and the substrate, and the gap is vacuum.
As a preferred example, the end of the hydrophobic layer is a tip; there are gaps between adjacent hydrophobic layers.
As a preferred example, a first gap is formed between the upper parts of the nanoparticles, a second gap is formed between the hydrophobic layers, the first gap is communicated with the second gap, and the width of the first gap is gradually increased from bottom to top; the width of the second gap is gradually reduced from bottom to top and then gradually increased.
The method for manufacturing the glass with the self-cleaning function comprises the following steps: firstly, manufacturing a hydrophobic layer; secondly, manufacturing a nano layer; then connecting the nano layer with the substrate to form a glass unit; and finally, connecting the two glass units by adopting a sealing rubber strip, and forming a gap between the two glass units.
As a preferred example, the manufacturing of the hydrophobic layer includes: preparing a hydrophobic layer by adopting an electrostatic spraying process, connecting a receiving plate with a sharp end with a power supply cathode, communicating a nozzle with a spray pipe, filling a hydrophobic material in the spray pipe, and connecting the spray pipe with a power supply anode; and turning on a power supply to enable the charged hydrophobic material to be sprayed to the receiving plate and deposited in the receiving plate to form a hydrophobic layer.
As a preferred example, the manufacturing of the nano layer includes: the nano-layer is manufactured by adopting an electrostatic spraying process and a hot pressing process: connecting a wave-shaped receiving plate with a power supply cathode, connecting one end of a hydrophobic layer with the wave-shaped receiving plate, communicating a nozzle with a spray pipe, filling slurry of a nano material in the spray pipe, and connecting the spray pipe with a power supply anode; starting a power supply to enable the charged nano material slurry to be sprayed to the receiving plate and deposited in the receiving plate to form a first nano layer; the first nano layer is fixedly connected with the hydrophobic layer; connecting the wavy receiving plate with the negative electrode of a power supply, communicating the nozzle with the spray pipe, filling the slurry of the nano material in the spray pipe, and connecting the spray pipe with the positive electrode of the power supply; starting a power supply to enable the charged nano material slurry to be sprayed to the receiving plate and deposited in the receiving plate to form a second nano layer; and preparing the first nano layer and the second nano layer into nano layers by adopting a hot pressing process.
The wall body containing the glass is characterized in that the glass is connected to the wall body, and a vacuum cavity between the base bodies is in an inverted isosceles trapezoid shape.
As a preferred example, the included angle between the base body and the wall body is 3-5 degrees.
Compared with the prior art, the glass provided by the embodiment of the invention has a self-cleaning function and good heat insulation and preservation effects. In the glass structure of the present embodiment, each glass unit includes a substrate and a nanolayer coated on one side of the substrate, and a gap is formed between the nanolayer and the substrate. When the external temperature changes, especially in different seasons, the glass substrate and the nano layer both expand with heat and contract with cold. A certain gap is formed between the nano layer and the base body, so that a certain adjusting space is provided for the base body and the nano layer to expand with heat and contract with cold when the base body and the nano layer deform with cold, and the nano layer is prevented from falling off from the base body. The nanolayer is composed of nanoparticles in the shape of rugby balls. The end of the nano particles far away from the substrate is provided with a hydrophobic layer. Because the gaps are formed among the nano particles and air exists in the gaps, water cannot occupy the gaps. Due to the presence of air, the water flows down the outer wall of the nanoparticles, forming water droplets. In particular, the hydrophobic layer is provided at the end of the nanoparticles, so that water droplets fall from the hydrophobic layer without staying or hanging on the nanoparticles. In the flowing process of water, the dirt on the surfaces of the nano particles is taken away together, so that the self-cleaning function is realized.
Drawings
FIG. 1 is a schematic structural view of a glass according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a nanolayer of an embodiment of the present invention;
fig. 3 is a schematic structural view of a wall body according to an embodiment of the present invention.
The figure shows that: the nano-scale coating comprises a substrate 1, a nano-layer 2, a hydrophobic layer 3 and a wall 4.
Detailed Description
The technical solution of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1 and 2, the glass with a self-cleaning function according to the embodiment of the present invention includes two glass units. Each glass unit comprises a substrate 1 and a nanolayer 2 coated on one side of the substrate 1. The nano-layer 2 is formed by mutually connecting rugby-shaped nano-particles, and a gap is formed between the nano-layer 2 and the substrate 1. The end of the nanoparticle remote from the substrate 1 is provided with a hydrophobic layer 3. The two glass units are oppositely arranged, a vacuum cavity is formed between the substrates 1, and the nano-layer 2 is positioned at the outer side of the vacuum cavity.
In the glass structure of the above embodiment, each glass unit includes a substrate 1 and a nanolayer 2 coated on one side of the substrate 1, and there is a gap between the nanolayer 2 and the substrate 1. When the external temperature changes, especially in different seasons, the glass substrate 1 and the nano layer 2 both expand with heat and contract with cold. Because when the nano layer 2 is manufactured, the expansion and contraction coefficients of the base body 1 and the nano layer 2 cannot be adjusted to be consistent, a certain gap is formed between the nano layer 2 and the base body 1, so that a certain adjusting space is formed when the base body 1 and the nano layer 2 deform due to expansion and contraction, and the nano layer 2 is prevented from falling off from the base body 1.
In addition, the nano layer 2 is composed of nano particles in a rugby ball shape. The end of the nano-particles far away from the substrate 1 is provided with a hydrophobic layer 3. When external water, including rainwater, is sprayed on the nano layer 2 on the surface of the glass, the gaps are formed among the nano particles, and air is filled in the gaps, so that the gaps cannot be filled with the water. Due to the presence of air, the water flows down the outer wall of the nanoparticles, forming water droplets. In particular, the hydrophobic layer 3 is provided at the end of the nanoparticles, so that water droplets fall from the hydrophobic layer 3 without settling or hanging on the nanoparticles. In the flowing process of water, the dirt on the surfaces of the nano particles is taken away together, so that the self-cleaning function is realized.
In this embodiment, the two glass units are oppositely disposed, a vacuum chamber is formed between the substrates 1, and the nanolayer 2 is located outside the vacuum chamber. The vacuum cavity can play a role in heat insulation, so that external heat is not easy to enter the room, and indoor heat is not easy to lose through glass.
Preferably, in the nano layer 2, the nano particles are vertically arranged, and the middle parts of the nano particles are connected with each other. The nanoparticles are vertically arranged, and gaps are formed between the nanoparticles at the upper part and the lower part of the nanoparticles. The bottom and the base plate 1 fixed connection of nano-particle, the lower part space of nano-particle does benefit to and provides certain buffering space when the material expends with heat and contracts with cold, avoids nanometer layer 2 to drop from base plate 1. Preferably, the lower void of the nanoparticle is a vacuum. Thus, the lower part gap plays a role in heat insulation and heat preservation, reduces the transmission of external heat to the glass substrate 1 and also reduces the transmission of indoor heat to the outside.
Preferably, the end of the hydrophobic layer 3 is pointed; there are gaps between adjacent hydrophobic layers 3. The hydrophobic layer 3 has hydrophobicity, and water does not adhere to the hydrophobic layer 3. In the preferred embodiment, the end of the hydrophobic layer 3 is pointed. Thus, the water droplets easily fall from the end of the hydrophobic layer 3, avoiding the water droplets hanging on the nanoparticles. The presence of air in the upper void of the nanoparticles greatly reduces the contact of the liquid with the glass surface so that water does not collect in the upper void of the nanoparticles. Due to the insulating action of the air, the water slides down along the surface of the nanoparticles. Meanwhile, the water drops take away the dirt on the surface of the nano layer 2 in the process of sliding downwards, and the self-cleaning effect is achieved.
As a preferred example, a first gap is formed between the upper parts of the nanoparticles, a second gap is formed between the hydrophobic layers 3, the first gap is communicated with the second gap, and the width of the first gap gradually increases from bottom to top; the width of the second gap is gradually reduced from bottom to top and then gradually increased. Both the first and second voids have voids therein. When the water flow flows to the gap, the water flow is not easy to enter the first gap when flowing through the second gap due to the narrow width of the lower part of the second gap. The first gap has air therein. Thus, the water flow easily flows over the surface of the hydrophobic layer 3 and falls. This preferred embodiment is through first clearance of reasonable setting and second gap size for during rivers are difficult for getting into first clearance, and fall from hydrophobic layer 3 surface.
When the glass of the above embodiment is manufactured, the water-repellent layer 3 is first manufactured. The hydrophobic layer 3 is produced by an electrostatic spraying process. Connecting the receiving plate with the tip end with the negative electrode of a power supply, communicating the nozzle with the spray pipe, filling the hydrophobic material in the spray pipe, and connecting the spray pipe with the positive electrode of the power supply. The power supply is switched on so that the charged hydrophobic material is sprayed towards the receiving plate and deposited in the receiving plate, forming a hydrophobic layer 3. Next, the nanolayer 2 is formed. The nano-layer 2 is manufactured by a hot pressing process and an electrostatic spraying process. Connecting a wave-shaped receiving plate with a power supply cathode, connecting one end of a hydrophobic layer 3 with the wave-shaped receiving plate, communicating a nozzle with a spray pipe, filling slurry of nano materials in the spray pipe, and connecting the spray pipe with a power supply anode. And turning on a power supply to enable the charged nano material slurry to be sprayed to the receiving plate and deposited in the receiving plate to form a first nano layer. The first nanolayer and the hydrophobic layer 3 are fixedly connected. The wavy receiving plate is connected with the negative pole of the power supply, the nozzle is communicated with the spray pipe, the slurry of the nano material is filled in the spray pipe, and the spray pipe is connected with the positive pole of the power supply. And turning on a power supply to enable the charged nano material slurry to be sprayed to the receiving plate and deposited in the receiving plate to form a second nano layer. And (3) preparing the first nano layer and the second nano layer into the nano layer 2 by adopting a hot pressing process. The nanolayers 2 are then bonded to the substrate 1, which may be with an adhesive, to form a glass unit. And finally, connecting the two glass units together by adopting a sealing rubber strip, and forming a gap between the two glass units. The manufacturing method is simple and easy to implement.
As an application, as shown in FIG. 3, the glass of the above embodiment is installed on a wall, and the gap between two glass units is in the shape of an inverted isosceles trapezoid. Thus, both substrates on the glass are disposed obliquely. Preferably, the included angle between the base body 1 and the wall body is 3-5 degrees. When the substrate 1 is obliquely arranged, water drops on the nano particles are easier to fall, and the self-cleaning function is realized.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to further illustrate the principles of the invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, which is also intended to be covered by the appended claims. The scope of the invention is defined by the claims and their equivalents.
Claims (7)
1. The glass with the self-cleaning function is characterized by comprising two glass units, wherein each glass unit comprises a substrate (1) and a nano layer (2) coated on one side of the substrate (1), the nano layers (2) are formed by mutually connecting rugby-ball-shaped nano particles, a gap is formed between each nano layer (2) and the substrate (1), and a hydrophobic layer (3) is arranged at the end part of each nano particle, which is far away from the substrate (1); the two glass units are oppositely arranged, a vacuum cavity is formed between the substrates (1), and the nano layer (2) is positioned on the outer side of the vacuum cavity;
a first gap is formed at one end, far away from the substrate, of each nano particle, a second gap is formed between the hydrophobic layers (3), the first gap is communicated with the second gap, and the width of the first gap is gradually increased from the position close to the substrate to the position far away from the substrate; the width of the second gap is gradually reduced from the direction close to the substrate to the direction far away from the substrate and then gradually increased;
in the nano layer (2), nano particles are vertically distributed, and the middle parts of the nano particles are mutually connected;
the end part of the hydrophobic layer (3) is a tip; gaps are arranged between adjacent hydrophobic layers (3).
2. Glass with self-cleaning function according to claim 1, characterised in that a gap is formed between the nanoparticles and the substrate (1) and the gap is a vacuum.
3. A method for manufacturing glass with a self-cleaning function according to claim 1, comprising: firstly, preparing a hydrophobic layer (3); secondly, manufacturing a nano layer (2); then connecting the nano layer (2) with the substrate (1) to form a glass unit; and finally, connecting the two glass units by adopting a sealing rubber strip, and forming a gap between the two glass units.
4. A method for manufacturing glass with self-cleaning function according to claim 3, wherein said manufacturing the hydrophobic layer (3) comprises:
manufacturing a hydrophobic layer (3) by adopting an electrostatic spraying process, connecting a receiving plate with a pointed end with a power supply cathode, communicating a nozzle with a spray pipe, filling a hydrophobic material in the spray pipe, and connecting the spray pipe with a power supply anode; the power supply is switched on so that the charged hydrophobic material is sprayed towards the receiving plate and deposited in the receiving plate, forming a hydrophobic layer (3).
5. A method for making glass with self-cleaning function according to claim 3, wherein said making a nano-layer (2) comprises:
the nano layer (2) is manufactured by adopting an electrostatic spraying process and a hot pressing process: connecting a wave-shaped receiving plate with a negative electrode of a power supply, connecting one end of a hydrophobic layer (3) with the wave-shaped receiving plate, communicating a nozzle with a spray pipe, filling slurry of a nano material in the spray pipe, and connecting the spray pipe with a positive electrode of the power supply; starting a power supply to enable the charged nano material slurry to be sprayed to the receiving plate and deposited in the receiving plate to form a first nano layer; the first nano layer is fixedly connected with the hydrophobic layer (3);
connecting the wavy receiving plate with the negative electrode of a power supply, communicating the nozzle with the spray pipe, filling the slurry of the nano material in the spray pipe, and connecting the spray pipe with the positive electrode of the power supply; starting a power supply to enable the charged nano material slurry to be sprayed to the receiving plate and deposited in the receiving plate to form a second nano layer;
and (3) preparing the first nano layer and the second nano layer into a nano layer (2) by adopting a hot pressing process.
6. A wall comprising the glass according to claim 1, wherein the glass is attached to the wall (4) and the vacuum chamber between the substrates (1) is in the shape of an inverted isosceles trapezoid.
7. A wall according to claim 6, characterized in that the angle between the base body (1) and the wall (4) is 3-5 degrees.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710851375.2A CN107587633B (en) | 2017-09-20 | 2017-09-20 | Glass with self-cleaning function, preparation method thereof and wall body |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710851375.2A CN107587633B (en) | 2017-09-20 | 2017-09-20 | Glass with self-cleaning function, preparation method thereof and wall body |
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| CN107587633A CN107587633A (en) | 2018-01-16 |
| CN107587633B true CN107587633B (en) | 2022-11-18 |
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Citations (7)
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| US20070141305A1 (en) * | 2005-12-21 | 2007-06-21 | Toshihiro Kasai | Superhydrophobic coating |
| CN101421200A (en) * | 2006-03-27 | 2009-04-29 | Beneq有限公司 | Hydrophobic glass surface |
| CN102239224A (en) * | 2008-07-02 | 2011-11-09 | 微粉公司 | Compositions and processes for producing durable hydrophobic and/or olephobic surfaces |
| CN103232168A (en) * | 2013-02-19 | 2013-08-07 | 冯益安 | Method for realizing self cleaning of surface of glass by utilizing hydrophobic or oleophobic nanoparticles |
| US20140272301A1 (en) * | 2013-03-15 | 2014-09-18 | Hrl Laboratories, Llc | Structural coatings with dewetting and anti-icing properties, and processes for fabricating these coatings |
| CN104355554A (en) * | 2014-10-20 | 2015-02-18 | 张玉芬 | Hollow heat-insulating hydrophobic glass |
| CN207194253U (en) * | 2017-09-20 | 2018-04-06 | 南京国豪环保材料科技有限公司 | A kind of glass and wall with self-cleaning function |
-
2017
- 2017-09-20 CN CN201710851375.2A patent/CN107587633B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070141305A1 (en) * | 2005-12-21 | 2007-06-21 | Toshihiro Kasai | Superhydrophobic coating |
| CN101421200A (en) * | 2006-03-27 | 2009-04-29 | Beneq有限公司 | Hydrophobic glass surface |
| CN102239224A (en) * | 2008-07-02 | 2011-11-09 | 微粉公司 | Compositions and processes for producing durable hydrophobic and/or olephobic surfaces |
| CN103232168A (en) * | 2013-02-19 | 2013-08-07 | 冯益安 | Method for realizing self cleaning of surface of glass by utilizing hydrophobic or oleophobic nanoparticles |
| US20140272301A1 (en) * | 2013-03-15 | 2014-09-18 | Hrl Laboratories, Llc | Structural coatings with dewetting and anti-icing properties, and processes for fabricating these coatings |
| CN104355554A (en) * | 2014-10-20 | 2015-02-18 | 张玉芬 | Hollow heat-insulating hydrophobic glass |
| CN207194253U (en) * | 2017-09-20 | 2018-04-06 | 南京国豪环保材料科技有限公司 | A kind of glass and wall with self-cleaning function |
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| CN107587633A (en) | 2018-01-16 |
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