KR101362511B1 - A method for manufacturing high transmittance and stable hydrophobic surface by aligning nano particles coated with silicon-carbon complex - Google Patents
A method for manufacturing high transmittance and stable hydrophobic surface by aligning nano particles coated with silicon-carbon complex Download PDFInfo
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- KR101362511B1 KR101362511B1 KR1020120140564A KR20120140564A KR101362511B1 KR 101362511 B1 KR101362511 B1 KR 101362511B1 KR 1020120140564 A KR1020120140564 A KR 1020120140564A KR 20120140564 A KR20120140564 A KR 20120140564A KR 101362511 B1 KR101362511 B1 KR 101362511B1
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/006—Surface treatment of glass, not in the form of fibres or filaments, by coating with materials of composite character
- C03C17/007—Surface treatment of glass, not in the form of fibres or filaments, by coating with materials of composite character containing a dispersed phase, e.g. particles, fibres or flakes, in a continuous phase
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- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1681—Antifouling coatings characterised by surface structure, e.g. for roughness effect giving superhydrophobic coatings or Lotus effect
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- C09K3/18—Materials not provided for elsewhere for application to surfaces to minimize adherence of ice, mist or water thereto; Thawing or antifreeze materials for application to surfaces
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- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
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Abstract
The present invention relates to a method for producing a high-permeability super water-repellent surface in which nanoparticles coated with a silicon-carbon composite are arranged. According to the method for producing a high-permeability super water-repellent surface in which the nanoparticles coated with the silicon-carbon composite according to the present invention are arranged, water repellency having high permeability can be imparted to various substrate surfaces, and the method is simple and expensive compared to the prior art. Because the equipment is not used, the cost is relatively inexpensive and can be applied on a large-area substrate and enlarged.
Description
The present invention relates to a method for producing a high-permeability super water-repellent surface in which nanoparticles coated with a silicon-carbon composite are arranged on a substrate.
Water repellency refers to a property that is difficult to get wet with water, and water repellency is evaluated by the contact angle θ of a drop placed on a surface. In general, when θ exceeds 90 °, it is defined as water repellency, and when it exceeds 150 °, it is defined as super water repellency. Basically, the water repellency of the material surface is determined by the surface energy, but the super water repellent property, that is, the contact angle of more than 150 ° does not appear only by having low surface energy, but the surface must have the micro roughness of the dual roughness. .
This super water-repellent property can be seen in the lotus leaf, which is super water-repellent because the lotus leaf is coated with wax having low water-repellent property and numerous nano-sized protrusions cover the rugged microstructure. Super water-repellent surfaces with water contact angles higher than 150 ° have a high repulsive force against water, causing water droplets to easily roll off even with slight tilting, resulting in a self-cleaning effect that washes away contaminants on the surface. Since water droplets easily roll on the super water-repellent surface, it is attracting attention not only in the basic science field but also in many applications because it has functions such as waterproofing, snowing prevention, corrosion prevention by tides, self-cleaning, and anti-fog.
In particular, in the case of transparent super water-repellent surfaces, the application range can be extended to glass-based substrates such as transparent windows requiring high transmittance. This decreasing phenomenon can also be prevented. However, in general, as the roughness, which is an essential condition of super water repellency, increases the permeability, technology for making a layer of high permeability coating while maintaining super water repellency is required.
Conventionally, a method of forming a micro-nano microstructure by physicochemical methods such as etching and plasma treatment of a surface of a material having low surface energy having water repellency, and growing or synthesizing micro and nano-sized materials on a flat substrate After forming the concave-convex structure on the surface, a super water-repellent surface was prepared by coating a material having water repellency. However, these methods have a problem that it is difficult to face them because of the complicated process and expensive cost. In particular, in the case of the water-repellent surface manufacturing technology using fluorine and fluorine-containing polymer has a disadvantage that it has a harmful effect on the environment. Therefore, there is a need for research on an environment-friendly and simple method for producing a high-permeability super water-repellent surface on a large area substrate.
Therefore, while the present inventors are studying a method for producing a high-permeability super water-repellent surface, when the silicon-carbon composite is deposited by applying a silicon-carbon composite to the nanoparticles by vapor deposition, powder particles having a superhydrophobic coating layer are formed. The present invention was completed by arranging the superhydrophobic nanoparticles coated with the silicon-carbon composite of the present invention on a substrate by applying the same, thereby completing the present invention.
It is an object of the present invention to provide a method for producing a highly transparent super water-repellent surface in which nanoparticles coated with a silicon-carbon composite are arranged on a substrate.
In order to solve the above problems, the present invention comprises the steps of preparing a nanoparticle coated with a silicon-carbon composite by the vapor deposition of a silicon organic polymer on the nanoparticles (step 1), the nanoparticles prepared in
In the method of manufacturing a high-permeability super water-repellent surface in which the nanoparticles are arranged, step 1) is a step of coating the nanoparticle surface with a silicon-carbon composite to prepare nanoparticles having superhydrophobicity. This step is to convert the polymer into the vapor phase to be deposited on the nanoparticles.
Conventionally, the liquid coating method has been used to coat the surface of the powder particles with a functional coating film. Such a liquid coating method is disadvantageous in that it is difficult to form a thin and uniform coating film. Particularly, in the case of the ultra-hydrophobic coating, the liquid coating method has a slightly lower contact angle with the coated surface, making it difficult to obtain a highly superhydrophobic surface.
The present invention is to overcome the disadvantages of the prior art has a technical feature in that the surface of the powder particles are coated by the vapor deposition of the silicon organic polymer. This vapor deposition method is environmentally friendly because it does not require a solvent, unlike a liquid phase deposition method.
In the present invention, it is preferable to use polydimethylsiloxane, polyvinylsiloxane, polyphenylmethylsiloxane or a combination thereof as the component of the silicon-carbon composite.
In addition, in the present invention, it is preferable to use the particles having a high permeability, the nanoparticles are, for example, SiO 2 , ZnO, ITO and Al 2 O 3 nanoparticles (1) Daniel Ebert et al., Transparent, Superhydrophobic, and Wear-Resistant Coatings on Glass and Polymer Substrates Using SiO 2 , ZnO, and ITO Nanoparticles, Langmuir 2012, 28; 2) Maxim Lebedev, Susan Krumdieck et al. Optically transparent, dense α-Al 2 O 3 thick films deposited on glass at room temperature, Current Applied Physics 8 (2008) 233-236).
In general, super water repellency has an inverse relationship with the permeability of the super water repellent layer, and the super water repellency of the surface has a larger value as the surface roughness becomes larger. In addition, the greater the surface roughness, the larger the scattering phenomenon occurs on the surface, and as a result, the permeability of the superhydrophobic layer is reduced. Therefore, in order to avoid such scattering phenomenon, the surface roughness must be much smaller than visible region (400 nm-700 nm). Therefore, the size of the nanoparticles forming the super water-repellent layer preferably has a diameter of 100 nm or less, more preferably 1 nm to 100 nm in diameter.
According to the manufacturing method of the present invention, the silica nanoparticles have hydrophobic properties due to the silicon-carbon composite deposited on the surface of the silica nanoparticles through vapor deposition, and the micro / nano complex structure composed of these nanoparticles is collected. The surface produced by the surface roughness has a super water-repellent property.
The method of coating the surface of the nanoparticles of step 1) of the present invention with a silicon-carbon composite specifically includes placing the nanoparticles under the reaction vessel and placing the silicon organic polymer thereon so as not to contact the nanoparticles, and then heating them (step 1) and the step of depositing a silicon organic polymer by heating on the nanoparticles to form a film (step 2).
The method has technical features in that vapor deposition can be carried out using a liquid or gel silicon organic polymer. That is, the silicon organic polymer may be deposited by a dry-chemical method rather than by a wet-chemical method using a solvent in a solution state.
In this case, a liquid or gel silicone organic polymer may be deposited on the nanoparticles without a curing agent.
As shown in FIG. 1-A,
In the present invention, the heating is preferably performed in a sealed container, but is not limited thereto. The container used in the present invention may be made of stainless steel, copper, aluminum, steel, titanium, and alloys thereof, or glass. It is preferably selected from the container made, but is not limited thereto.
The temperature of the heating of the present invention is preferably carried out at 100 ℃ to 350 ℃. The said heating temperature can be suitably changed according to the kind of powder particle used. Further, the heating is preferably performed for 30 minutes to 6 hours. The heating time may also be appropriately changed depending on the type of nanoparticles used.
In addition, the method of coating the surface of the nanoparticles of step 1) of the present invention with a silicon-carbon composite specifically includes mixing the nanoparticles and the solidified silicon organic polymer (step 1) and heating the mixture (step) It may be a method consisting of 2).
1-b schematically depict a reaction apparatus for coating a silicon-carbon composite on silicon nanoparticles according to the method.
Specifically, silica nanoparticles (2) and polydimethylsiloxane (PDMS, 3), which is a silicon-carbon precursor, are placed in the reaction vessel (1), and a magnetic stopper (4) is placed in a rubber stopper to uniformly coat the surface of the silica nanoparticles. Block with (6). The reaction vessel prepared as described above is placed on the heating mesh and the magnetic stirrer (5) and the silica nanoparticles are constantly stirred during the process time. The reaction vessel is heated using the
The solidified silicon organic polymer can be obtained by adding a curing agent to the silicon organic polymer. Specifically, examples of the silicone organic polymer include polydimethylsiloxane, polyvinylsiloxane, polyphenylmethylsiloxane, and the like, but are not limited thereto. Examples of the curing agent include methylhydrogen siloxane, dimethyl siloxane, dimethylvinylated silica, tetramethyl tetravinyl cyclotetrasiloxane, and the like.
In addition, the method of coating the surface of the silica nanoparticles of the step 1) of the present invention with a silicon-carbon composite specifically includes placing a liquid or gel-like silicon organic polymer under the reaction vessel and depositing fine particles thereon between the separators in the form of a net. Positioning and forming a layered structure, followed by heating (step 1), and heating the silicon organic polymer by vapor deposition on the fine particles to form a film (step 2). Can be.
The method has technical features in that vapor deposition can be carried out using a liquid or gel silicon organic polymer. That is, the silicon organic polymer may be deposited by a dry-chemical method, not by a wet-chemical method, using a solvent in a solution state.
Figure 2 schematically shows a reaction apparatus for coating a silicon-carbon composite on silicon nanoparticles according to the above method.
Specifically, the polydimethylsiloxane (PDMS) (4) in the liquid or gel state is placed at the bottom of the reaction vessel and the
When the silicon-carbon composite is coated on the surface of the nanoparticles using the reaction apparatus of FIG. 2, a large amount of water-repellent coating is possible on the nanoparticles at a time compared to the reaction vessels of FIGS. 1-a and 1-b, and silicon-carbon The advantage is that no curing agent is used to cure the composite.
In the method of manufacturing a high-permeability super water-repellent surface in which nanoparticles are arranged, step 2) is performed by placing the nanoparticles prepared in step 1) on a sticky substrate and pressing the nanoparticles onto the substrate. As the nano-particles coated with the silicon-carbon composite and the water-repellent treatment is attached to the surface of the substrate to form a micro-nano microstructure on the surface of the substrate, thereby producing a surface exhibiting super water repellency.
The base material that is tacky on the surface may be prepared to have a tacky surface by itself or a method of applying a tacky material to the base material.
The substrate used in the present invention may use any substrate known in the art as a solid substrate. Non-limiting examples of mold substrates may be glass, silicon wafers, tacky polymeric substrates.
The substrate may be a substrate such as a flat substrate, a roller, or the like. In addition, the area of the substrate is not particularly limited, and the present invention is well applied to a large area of the substrate so that the nanoparticles can be perfectly aligned all over the entire area.
Substrates used in the present invention can be extended from inflexible substrates such as ordinary glass to flexible substrates such as cured polydimethylsiloxane (PDMS). In the case of cured polydimethylsiloxane (PDMS), the substrate may be tacky by a method of applying a tacky material on a substrate in the case of a tacky surface, but a tacky substrate such as general glass.
In addition, in the method for producing adhesiveness by applying the adhesive substance to the substrate, the adhesive substance includes (i) -NH 2 group compound, (ii) -SH group compound, (iii) -OH group compound, It is preferably a compound selected from the group consisting of (iv) a polyelectrolyte, (v) polystyrene, (vi) photoresist and (vii) epoxy.
In the present invention, the pressing means may be applied by pressing against a substrate. Preferably, the first member is disposed to be in parallel with the surface of the mold substrate on which the nanoparticles are placed, and the physical pressure is applied to the silica nanoparticles by reciprocating the first member one or more times.
Non-limiting examples of the first member is a material having a flat surface, such as elastic materials such as natural and artificial rubber plates, plastic plates, PDMS, glass plates, silicon wafers.
In addition, the pressurization time is not particularly limited as long as it is a time that the nanoparticle layer can be formed, it is preferable to apply a pressure for 10 seconds to 180 seconds, preferably about 30 seconds. After raising the nanoparticles prepared in step 1) and pressurized to form hydrogen bonds, ionic bonds, covalent bonds, coordination bonds or van der Waals bonds can be attached to the silica nanoparticles on the substrate.
Step 3) in the method of manufacturing a high-permeability super water-repellent surface in which the nanoparticles are arranged is to remove the nanoparticles that are not fixed to the surface of the substrate, to remove the nanoparticles that are not fixed for the uniformity of the surface of the substrate. The removal is preferably done by blowing off the gas without applying a physical force.
In the present invention, the thickness of the surface to which the nanoparticles are attached and fixed may be flexibly adjusted according to the adhesiveness of the substrate. If the surface of the substrate has high adhesion, the nanoparticles coated with a large amount of silicon-carbon composite adhere to the surface, resulting in a thick and fixed surface having a large amount of nanoparticles fixed. In the present invention, the thickness of the surface to which the nanoparticles are attached and fixed affects the transmittance of the surface, and thus, the thicker the thickness, the lower the permeability. Therefore, it is important to prepare the adhesive layer uniformly and thinly.
Therefore, in the present invention, it is preferable to remove nanoparticles to which nanoparticles are not attached by blowing air or nitrogen without directly applying a physical force to the fixed surface. If the nanoparticles are attached and apply a physical force directly to the fixed surface, the micro-nano structure may collapse and the superhydrophobicity may disappear, so removing the unattached nanoparticles without directly applying the physical pressure to the surface is essential. desirable.
The present invention also provides a highly permeable super water-repellent surface in which the silicon-carbon composite coated nanoparticles prepared by the method are arranged on a substrate.
According to the method for producing a high-permeability super water-repellent surface in which the nanoparticles coated with the silicon-carbon composite according to the present invention are arranged, the water repellency having high permeability can be imparted to various substrate surfaces. Because the equipment is not used, the cost is relatively inexpensive and can be applied on a large-area substrate and enlarged.
Figure 1-a shows a schematic diagram of a device for producing a water-repellent surface by coating a liquid silicon-carbon composite on the powder particle surface according to the present invention.
1-b shows a schematic diagram of an apparatus for producing a water repellent surface by coating a solidified silicon-carbon composite according to the present invention on a powder particle surface.
Figure 2 shows a schematic diagram of a device for producing a water-repellent surface by coating a liquid silicon-carbon composite in a large amount of the particle surface according to the present invention.
Figure 3-a shows a schematic diagram of a method for producing a high-permeability super water-repellent surface by adhering the water-repellent silica nanoparticles according to the present invention to the surface to exhibit super water repellency. 3-B is a schematic diagram of the high permeability super water-repellent surface produced using the said method.
Figure 4 shows the result of measuring the water contact angle on the high permeability super water-repellent surface according to the present invention.
Fig. 5-a shows an SEM image of a highly transparent super water-repellent surface according to the present invention, and 5-b is an enlarged view thereof.
6 is a result of confirming the surface after the epoxy adhesive not adhered to the silica nanoparticles using an atomic force microscope (AFM). 6-a shows the surface in two-dimensional photographs and FIG. 6-b shows the same surface in three dimensions. 6-c is a graph showing the elevation of the surface along the diagonal line of FIG. 6-a.
7 is a result of confirming the high permeability super water-repellent surface according to the present invention by using an atomic force microscope (AFM). 7-a shows the surface in two-dimensional photographs and FIG. 7-b shows the same surface in three dimensions. 7-c is a graph showing the elevation of the surface along the diagonal line of FIG. 7-a.
Figure 8 is a graph comparing the transmittance of the surface of the super water-repellent surface according to the present invention measured using a UV-VIS spectrometer coated with a common glass and epoxy adhesive.
9 is a photograph of a high-permeability super water-repellent surface according to the present invention. Figure 9-a is a high-permeability super water-repellent surface prepared by adhering the silica nano-powder coated with a silicon-carbon composite using an epoxy adhesive on a common glass. 9-b is a flexible high-permeability super water-repellent surface prepared by adhering silica nanopowder coated with silicon-carbon composite on a flexible PDMS substrate.
10-a to 10-g is a photograph showing the process of confirming the self-cleaning effect of the high-permeability super water-repellent surface prepared on the normal glass according to the present invention.
11-a to 11-g is a photograph showing the process of confirming the flexibility of the high-permeability super water-repellent surface prepared on the PDMS substrate according to the present invention.
Hereinafter, the present invention will be described in more detail with reference to examples. However, these examples are for illustrative purposes only and the scope of the present invention is not limited by these examples.
Example
1: solid state
Polydimethylsiloxane (PDMS)
Preparation of Silica Nanoparticles Coated with Silicon-Carbon Composites
As shown in FIG. 1-b,
Example
2: liquid state
Polydimethylsiloxane (PDMS)
Preparation of Silica Nanoparticles Coated with Silicon-Carbon Composites
A liquid polydimethylsiloxane (PDMS) 4 is put at the bottom of the
Example
3: coated with silicon-carbon composite
Super water repellent
Preparation of Super Water-Repellent Glass Using Silica Nanoparticles
As shown in Fig. 3-a, a thin layer of epoxy adhesive was applied on the clean glass to give the glass surface adhesiveness. After 5 to 10 minutes, the silica nanoparticles coated with the silicon-carbon composite were uniformly applied and pressured thereon so that the particles could adhere to the surface. After an hour under pressure, nanoparticles not strongly adhered to the surface were blown to prepare a super-permeable super water-repellent surface. The photograph of the high permeability super water-repellent glass prepared according to the method is shown in Fig. 9-a.
Example
4: Flexible using silica nanoparticles coated with silicon-carbon composite
Polydimethylsiloxane
(
PDMS
Above
High permeability
Super water repellent
Production of film
As shown in Fig. 3-a, the silica nanoparticles coated with the silicon-carbon composite are uniformly applied on the sticky cured polydimethylsiloxane (PDMS) elastomer and pressurized thereon so that the particles adhere to the surface. It was. After an hour under pressure, nanoparticles that were not strongly attached to the surface were blown off. By the above method, a super water-repellent film having a high transparency and flexibility could be prepared. The photograph of the flexible high-permeability super water-repellent film prepared according to the method is shown in Figure 9-b.
Experimental Example
1: Water
Contact angle
Through measurement
High permeability
Super water repellent
Surface water repellency evaluation
After dropping 3 μl of water onto the high-permeability super water-repellent surface prepared on general glass in Example 3, the contact angle between the water droplet and the surface was measured. The results are shown in FIG. 4 and the specified contact angle was used as the average of three times. The average value of 162.52 ° was confirmed that the super water-repellent surface was produced.
Experimental Example 2: Scanning electron microscope ( SEM With) High permeability Super water repellent Glass structure measurement of the surface
The structure of the highly transparent super water-repellent surface prepared on the general glass in Example 3 was confirmed using a scanning electron microscope (SEM). The results are shown in Fig. Figure 5a is a SEM photograph of a high-transmittance super water-repellent surface 10000 times magnification according to the present invention and Figure 5-b is an enlarged photograph. In FIG. 5-a, a bumpy surface of several micrometers to several tens of micrometers can be confirmed, and in FIG. 5-b, the silica nanoparticles adhered to the surface are agglomerated with each other to form a sub-micron double roughness. Can be. When the water-repellent silica nanoparticles form a micro-nano composite structure, the surface has a super water-repellent property. Therefore, the surface can be rolled up very quickly without being wetted with water, which may have a self-cleaning effect.
Experimental Example
3:
Atomic Force Microscopy (AFM)
Evaluated using
High permeability
Super water repellent
Surface structure and roughness measurement
The structure of the high-permeability super water-repellent surface prepared on the general glass in Example 3 and the surface coated only with the epoxy adhesive on the general glass was confirmed using an atomic force microscope (AFM). The results are shown in FIGS. 6 and 7. FIG. 6 shows a surface coated only with an epoxy adhesive, and FIG. 7 shows AFM results of a surface composed of silica nanoparticles treated with water by polydimethylsiloxane (PDMS). 6-a and 7-a show two-dimensional photographs of the surface, and FIGS. 6-b and 7-b show three-dimensional images of the same surface. 6-c and 7-c are graphs showing the height of the surface appearing along the diagonal of the two-dimensional photograph.
In FIG. 7, it can be seen that the nano-level uneven structure overlaps the micro-level uneven structure to represent a double roughness. On the other hand, in Figure 6 it was confirmed that the micro-level concave-convex structure and has a very flat surface compared to the surface where the nanoparticles are raised (Figure 7).
In addition, the roughness of the highly transparent super water-repellent surface prepared on the general glass in Example 3 was confirmed using an atomic force microscope (AFM). As a result, it was confirmed that the rms roughness of the high-permeability super water-repellent surface prepared according to the present invention was increased to 189.1 nm compared to 1.41986 nm of the epoxy-only surface.
Experimental Example
4:
UV
-
VIS
Spectroscopic
High permeability
Super water repellent
Evaluation of surface permeability characteristics
The transmittance of the high-permeability super water-repellent surface prepared on the general glass in Example 3 and the surface coated only with the epoxy adhesive on the general glass was confirmed by using a UV-VIS spectrometer. The results are shown in Fig. 8 is a result of confirming the transmittance of the super water-repellent surface prepared in Example 3 using a UV-VIS spectrometer is a result of comparing the transmittance of the glass without any treatment and the glass with epoxy pressure-sensitive adhesive. The glass without any treatment showed transmittance of 90% or more in the visible region, and the glass with thin epoxy adhesive showed 1-2% lower transmittance than the glass without any treatment. The glass on which the water-repellent silica nanopowder was raised showed a transmittance of 70-82% in the visible region.
Experimental Example
5: prepared on plain glass according to the invention
High permeability
Super water repellent
Check the surface self-cleaning phenomenon
The self-cleaning phenomenon of the high-permeability super water-repellent surface prepared on the general glass in Example 3 was compared with the glass surface without any treatment. The results are shown in Fig. The self-cleaning phenomenon was confirmed by the following method. First, the high-permeability super water-repellent surface prepared in accordance with the present invention and the general glass was placed to have an inclination of about 2-3 °, and then activated carbon powder was sprayed thereon and distilled water was flowed therein to confirm that the activated carbon powder was removed from the surface. As a result, in the untreated glass, distilled water did not flow on the surface but remained mixed with activated carbon powder. On the other hand, in the case of the super water-repellent surface prepared by the present invention, it could be confirmed that a self-cleaning phenomenon of removing activated carbon powder covering the surface while easily flowing down without water droplets attached thereto.
Experimental Example
6: according to the invention
Polydimethylsiloxane
(
PDMS
Manufactured on
High permeability
second
Check the flexibility of the water repellent surface
The high permeability, super water repellency and flexibility of the high permeability super water repellent film prepared on the flexible polydimethylsiloxane (PDMS) in Example 4 was confirmed. The results are shown in Fig. 11-a to 11-g are the results of visually confirming the permeability, water repellency and flexibility of the super water-repellent film prepared in Example 4. The super water-repellent film was placed on the printed text to check its permeability, and water droplets were dropped on the surface to check the water repellency. Finally, the flexibility of the film could be confirmed by folding the film.
Claims (8)
Placing the nanoparticles prepared in step 1 on a substrate having a tacky surface and then pressing the nanoparticles to place the nanoparticles on the substrate (step 2); And
Removing the nanoparticles that are not immobilized on the surface of the substrate (Step 3), the nanoparticles are arranged a method of manufacturing a high permeability super water-repellent surface.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101871073B1 (en) * | 2016-12-29 | 2018-06-25 | 인천대학교 산학협력단 | Method for forming superhydrophobic coating layer using pdms and micropowders |
| KR20200027183A (en) | 2018-09-04 | 2020-03-12 | 한국세라믹기술원 | SLIPS structure and fabricating method of the same |
| KR20200068475A (en) | 2018-12-05 | 2020-06-15 | 한국세라믹기술원 | SLIPS pollution prevention structure comprising self-assembled monolayer and manufacturing method thereof |
| KR20220034297A (en) | 2020-09-10 | 2022-03-18 | 이철구 | Method for surface treatment of solar panel |
| CN117264496A (en) * | 2022-08-19 | 2023-12-22 | 黄亚文 | Self-repairable high-durability superhydrophobic coating, and preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110031864A (en) * | 2009-09-21 | 2011-03-29 | 삼성테크윈 주식회사 | Method for manufacturing graphene, graphene manufactured by the method, conductive film comprising the graphene, transparent electrode comprising the graphene, radiating or heating device comprising the graphene |
| KR20120019545A (en) * | 2010-08-26 | 2012-03-07 | 전남대학교산학협력단 | Method for manufacturing super water-repellent polymer film |
-
2012
- 2012-12-05 KR KR1020120140564A patent/KR101362511B1/en active IP Right Grant
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110031864A (en) * | 2009-09-21 | 2011-03-29 | 삼성테크윈 주식회사 | Method for manufacturing graphene, graphene manufactured by the method, conductive film comprising the graphene, transparent electrode comprising the graphene, radiating or heating device comprising the graphene |
| KR20120019545A (en) * | 2010-08-26 | 2012-03-07 | 전남대학교산학협력단 | Method for manufacturing super water-repellent polymer film |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101871073B1 (en) * | 2016-12-29 | 2018-06-25 | 인천대학교 산학협력단 | Method for forming superhydrophobic coating layer using pdms and micropowders |
| KR20200027183A (en) | 2018-09-04 | 2020-03-12 | 한국세라믹기술원 | SLIPS structure and fabricating method of the same |
| KR20200068475A (en) | 2018-12-05 | 2020-06-15 | 한국세라믹기술원 | SLIPS pollution prevention structure comprising self-assembled monolayer and manufacturing method thereof |
| KR20220034297A (en) | 2020-09-10 | 2022-03-18 | 이철구 | Method for surface treatment of solar panel |
| KR102541027B1 (en) * | 2020-09-10 | 2023-06-09 | 이철구 | Method for surface treatment of solar panel |
| CN117264496A (en) * | 2022-08-19 | 2023-12-22 | 黄亚文 | Self-repairable high-durability superhydrophobic coating, and preparation method and application thereof |
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