WO2020218989A1 - Robust superhydrophobic coatings with self- assembled hierarchical structures - Google Patents
Robust superhydrophobic coatings with self- assembled hierarchical structures Download PDFInfo
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- WO2020218989A1 WO2020218989A1 PCT/TR2019/051108 TR2019051108W WO2020218989A1 WO 2020218989 A1 WO2020218989 A1 WO 2020218989A1 TR 2019051108 W TR2019051108 W TR 2019051108W WO 2020218989 A1 WO2020218989 A1 WO 2020218989A1
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- surface coating
- minutes
- superhydrophobic surface
- glass slides
- coating method
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/08—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface
-
- 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
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2401/00—Form of the coating product, e.g. solution, water dispersion, powders or the like
- B05D2401/10—Organic solvent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2501/00—Varnish or unspecified clear coat
- B05D2501/10—Wax
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2601/00—Inorganic fillers
- B05D2601/20—Inorganic fillers used for non-pigmentation effect
- B05D2601/22—Silica
Definitions
- the present invention relates to a method of robust superhydrophobic coating with self-assembled hierarchical structures.
- the technique of superhydrophobic coating is a method developed utilizing the properties of a lotus flower. There is an anti-pollution structure on the surface of the lotus flower. The rain drops falling onto the leaves of the plant flow away from the leaf and fall down while at the same time dragging away the dirt and dust on the surface. A micro-nano layer is formed on the surface of the objects with the technique developed based on forming the said texture on the surface, thereby enabling the said surfaces to exhibit superhydrophobic properties. Thus, the object is neither polluted nor wetted.
- Superhydrophobic coatings can be applied on all kinds of surfaces (e.g. all textile and leather surfaces, glass, ceramic surfaces, stone and wooden surfaces, surfaces of electronic products).
- Superhydrophobic coating provides an advantageous method for occupational groups working at hazardous jobs. Workers can be protected from hazards by means of breathable clothing with hydrophobic and water-impermeable coating. Furthermore, thanks to these coatings, the friction coefficient on the outer surface of the ships can be reduced thereby achieving fuel saving, and the ship's active working time can be increased by extending the ship maintenance periods.
- the invention disclosed in the United States patent document US2019016905 an application known in the state of the art, relates to an improved superhydrophobic coating process.
- a robust superhydrophobic coating is produced by using carbon dioxide to enhance the integration of a binder material into the superhydrophobic coating.
- the carbon dioxide may be used to infiltrate and fill the interstitial voids of a superhydrophobic material, such as diatomaceous earth. Occupying these voids in the superhydrophobic material effectively blocks other components (e.g. binders) from entering the voids.
- the coating formulations of the invention are more robust and may strongly adhere to the substrates to which they are applied.
- the objective of the present invention is to produce superhydrophobic coatings having high hydrophobicity (water contact angle >150° and roll-off angle ⁇ 10°) and high mechanical robustness. For this purpose, it is aimed to self-assemble hierarchically ordered micro- and nano- sized structures.
- carnauba wax which is an inexpensive, easy-to-supply, completely vegetable based material that is used as an additive in food products, or alternatives thereof (natural wax, mineral wax, vegetable wax, animal wax and synthetic wax).
- a further objective of the invention is to obtain coatings with high hydrophobicity without using fluorocarbon compounds.
- Another objective of the invention is to obtain a method that is easily adaptable to industrial applications thanks to the simplicity of the production formula that is used, and inexpensive and easy-to-supply raw materials.
- the present invention is a highly robust superhydrophobic surface coating method comprising the steps of
- camauba wax crystals 0.1 g by weight of camauba wax crystals are added into 20 mL of chloroform and heated at 105°C for 10 minutes. After camauba wax is dissolved homogenously in the chloroform, it is allowed to cool at room temperature in a controlled manner. It is agitated in the process of cooling and when room temperature is reached, 0.4 grams of hydrophobized silica nanoparticles are added and stirred for 10 minutes by the help of a vortex apparatus.
- chloroform which is used as the solvent
- solvents such as ethanol, toluene, methanol and acetone.
- chloroform and ethyl acetate dissolve carnauba wax much better (average diameter distributions of 5 nm ⁇ 1 nm) than the other solvents.
- the particle size was found to be in the range of about 2 - 7 pm.
- the diameter distributions are measured to be at an average of 5 nm ( ⁇ 1 nm).
- Carnauba wax having such small diameters enhances the strength of the functionalized silica nanoparticles without compromising the hydrophobicity thereof.
- the static water contact angle of these coatings is characterized to be 175° ⁇ 3° and the roll-off angle thereof to be 2° ⁇ 1°.
- carnauba wax which is a natural material
- hydrophobic nanoparticles to increase the strength of the coatings.
- non-fluorine-based alkyl silanes with low surface energy are used and the static contact angle decreases.
- fluorine-free alkyl silane is used in this method, no such problem has been observed.
- the coatings do not contain fluorocarbon components and have a high static contact angle of 175° ⁇ 3° and a roll-off angle of 2° ⁇ 1°.
- the hydrophilic silica nanoparticles are modified with alkyl silane, preferably dodecyl trichlorosilane, to make them hydrophobic.
- alkyl silane preferably dodecyl trichlorosilane
- 2 grams of silica nanoparticles are added to 40 mL of toluene and stirred with the help of a magnetic stirring bar.
- 1 mL of alkyl silane is gradually added to the mixture of toluene silica nanoparticles. This solution is stirred for 3 hours. After stirring, this solution is centrifuged for 15 minutes by means of a centrifuge device.
- the hydrophobic silica nanoparticles obtained after centrifugation are dried in an oven at 80°C. The drying process takes approximately 12 hours.
- Glass slides (l x l cm 2 ) are placed into the washing container containing ethyl alcohol and acetone, and the cleaning process is carried out in the ultrasonic device for 10 minutes. At the end of the process, the glass slides are dried with nitrogen and cleaned in a UV-ozone device for 30 minutes.
- ethyl alcohol or alcohol wipes may be used for surface cleaning.
- the obtained suspension is applied as a coating on a glass slide (l x l cm 2 ) prepared for coating with the help of a spray gun with a nozzle head having an inner diameter of 0.35 mm at a fixed pressure of 2-3 bars. After performing spray coating from a distance of 30 cm and with 90° angle, it is allowed to dry in atmospheric environment. Coating can also be performed with spray bottles outside the laboratory environment.
- the resulting final solution product was tested for shelf life and no precipitation was observed in the nanoparticles used in the product.
- titanium dioxide, iron oxide and zinc oxide nanoparticles can be used instead of silica nanoparticles that are hydrophobized using alkyl silane.
- ethyl acetate is used instead of chloroform as the solvent of camauba wax.
- the same experimental results are obtained for both of the solvents.
- the water repellency properties and the static contact angle and roll-off angle measurements of the coated substrates are characterized by a goniometer device.
- Impact and abrasion resistance of the prepared coatings are determined by water spray impact test, water jet impact test, long term water drop impact test and linear abrasion test.
- the destruction caused by the impact and abrasion tests on the surface is characterized by SEM and AFM devices.
- the superhydrophobic coated sample having a surface area of 1 cm 2 was moved on a 1000 grit silicon carbide abrasive surface under a weight of 100 grams to examine the abrasion resistance of the superhydrophobic coating. Although the superhydrophobic coating was moved about 150 cm on the abrasive surface, the static water contact angle was still 165° ⁇ 2° and the roll-off angle was 7° ⁇ 1°, and it still maintained its high liquid repellent property. After every 10 cm of movement of the superhydrophobic coated sample on the silicon carbide surface, the static contact angle was measured, and this was repeated 15 times. The fact that the coating preserved its superhydrophobic property despite the highly abrasive properties of the silicon abrasive surface shows that the developed method provides high mechanical strength.
- the sample was found to be highly resistant to the water impact tests.
- the static contact angle of the superhydrophobic coating to which water impact was applied for 45 minutes under pressurized water, was still 168° ⁇ 2° and the roll-of angle thereof was 4° ⁇ 1°.
- the fact that the coating still maintained its static contact angle although pressurized water formed a pressure of 32.0 kPa on the superhydrophobic surface shows that the coating has high impact resistance.
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- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Surface Treatment Of Glass (AREA)
- Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
- Paints Or Removers (AREA)
Abstract
The present invention relates to a method of producing superhydrophobic surface coating having high impact and abrasion resistance and high water static contact angle, comprising the steps of adding 0.1 g by weight of carnauba wax crystals in 20 mL of chloroform and dissolving it under heating at l00-l20°C for 5-15 minutes; after dissolving is completed, agitating and cooling to room temperature; adding 0.4 grams of hydrophobic nanoparticles and stirring for 5-15 minutes; placing the glass slides in a washing container containing ethyl alcohol and acetone, and cleaning them in an ultrasonic device; drying the glass slides with nitrogen and allowing them to sit in a UV-ozone device for 20-30 minutes; coating the glass slides by spraying a suspension, into which hydrophobic nanoparticles are added, by a spray gun from at least a distance of 20 cm at a fixed pressure of 2-3 bars. This way, it aimed to self-assemble hierarchically ordered micro- and nano-sized structures and to produce superhydrophobic coatings having high hydrophobicity (water contact angle >150° and roll-off angle <10°) and high mechanical strength.
Description
ROBUST SUPERHYDROPHOBIC COATINGS WITH SEUF- ASSEMBUED HIERARCHICAU STRUCTURES
Field of the Invention
The present invention relates to a method of robust superhydrophobic coating with self-assembled hierarchical structures.
Background of the Invention
The technique of superhydrophobic coating is a method developed utilizing the properties of a lotus flower. There is an anti-pollution structure on the surface of the lotus flower. The rain drops falling onto the leaves of the plant flow away from the leaf and fall down while at the same time dragging away the dirt and dust on the surface. A micro-nano layer is formed on the surface of the objects with the technique developed based on forming the said texture on the surface, thereby enabling the said surfaces to exhibit superhydrophobic properties. Thus, the object is neither polluted nor wetted.
Areas of use of superhydrophobic coatings developed as a result of an inspiration by the lotus flower are increasing day by day. The fact that superhydrophobic coatings exhibit a repellent property against water and some liquids with low surface tension has paved the way for them to be used in many areas. These coatings also have anti-corrosion, anti-frost, anti-fogging and anti-pollution properties.
Superhydrophobic coatings:
· They do not get wet as they are impermeable to water and other liquids.
• They do not corrode as the water and moisture do not directly contact the main material.
• They do not frost as they do not allow water to stay thereon.
• The materials on which they are applied become dirt-repellent and stain- repellent.
• They do not obstruct breathing of the product surface and are air and vapor-permeable.
• They are resistant to low temperatures of minimum -30°C and high temperatures of maximum 220°C.
• When they lose their properties, their effect can be prolonged by reapplication.
Superhydrophobic coatings can be applied on all kinds of surfaces (e.g. all textile and leather surfaces, glass, ceramic surfaces, stone and wooden surfaces, surfaces of electronic products).
Superhydrophobic coating provides an advantageous method for occupational groups working at hazardous jobs. Workers can be protected from hazards by means of breathable clothing with hydrophobic and water-impermeable coating. Furthermore, thanks to these coatings, the friction coefficient on the outer surface of the ships can be reduced thereby achieving fuel saving, and the ship's active working time can be increased by extending the ship maintenance periods.
The invention disclosed in the United States patent document US2019016905, an application known in the state of the art, relates to an improved superhydrophobic coating process. A robust superhydrophobic coating is produced by using carbon dioxide to enhance the integration of a binder material into the superhydrophobic coating. The carbon dioxide may be used to infiltrate and fill the interstitial voids of a superhydrophobic material, such as diatomaceous earth. Occupying these voids in the superhydrophobic material effectively blocks other components (e.g.
binders) from entering the voids. Thus, the coating formulations of the invention are more robust and may strongly adhere to the substrates to which they are applied.
It has been observed in the applications in the literature that the impact and abrasion resistance of superhydrophobic coatings are not good enough for industrial applications. The difficulty in providing both high hydrophobicity (high static contact angle and low roll-off angle) and high impact and abrasion resistance is one of the main problems known in the literature. Aiming to increase the strength of superhydrophobic coatings leads to reduction of their hydrophobicity. In the art, the strength of superhydrophobic coatings is tried to be increased generally by using thermoset polymers.
Summary of the Invention
The objective of the present invention is to produce superhydrophobic coatings having high hydrophobicity (water contact angle >150° and roll-off angle <10°) and high mechanical robustness. For this purpose, it is aimed to self-assemble hierarchically ordered micro- and nano- sized structures.
Another objective of the invention is using carnauba wax which is an inexpensive, easy-to-supply, completely vegetable based material that is used as an additive in food products, or alternatives thereof (natural wax, mineral wax, vegetable wax, animal wax and synthetic wax).
A further objective of the invention is to obtain coatings with high hydrophobicity without using fluorocarbon compounds.
Another objective of the invention is to obtain a method that is easily adaptable to industrial applications thanks to the simplicity of the production formula that is used, and inexpensive and easy-to-supply raw materials.
Detailed Description of the Invention
The present invention is a highly robust superhydrophobic surface coating method comprising the steps of
- adding 0.1 g by weight of camauba wax crystals in 20 mL of chloroform and dissolving it under heating at 100-120°C for 5-15 minutes,
- after dissolving is completed, agitating and cooling to room temperature,
- adding 0.4 grams of silica nanoparticles hydrophobized by alkyl silane, preferably dodecyl trichloro silane, and stirring for 5-15 minutes,
- placing the glass slides in a washing container containing ethyl alcohol and acetone, and cleaning them in an ultrasonic device,
- drying the glass slides with nitrogen and allowing them to sit in a UV- ozone device for 20-30 minutes,
- coating the glass slides by spraying a suspension, into which hydrophobized silica nanoparticles are added, by a spray gun from at least a distance of 20 cm at a fixed pressure of 2-3 bars,
- allowing to dry at atmospheric environment.
0.1 g by weight of camauba wax crystals are added into 20 mL of chloroform and heated at 105°C for 10 minutes. After camauba wax is dissolved homogenously in the chloroform, it is allowed to cool at room temperature in a controlled manner. It is agitated in the process of cooling and when room temperature is reached, 0.4 grams of hydrophobized silica nanoparticles are added and stirred for 10 minutes by the help of a vortex apparatus.
Since chloroform, which is used as the solvent, is highly volatile, micro-nano sized self-assembled hierarchical hollow structures are formed. For this reason, much higher impact and abrasion resistance were observed in the coatings prepared with this solvent compared to those prepared with solvents such as ethanol, toluene, methanol and acetone. This is due to the mixture that is formed
wherein chloroform and ethyl acetate dissolve carnauba wax much better ( average diameter distributions of 5 nm ± 1 nm) than the other solvents. In the experiments conducted with the other solvents, the particle size was found to be in the range of about 2 - 7 pm.
After the carnauba wax that is used in the method of the present invention is dispersed in the solvent, the diameter distributions are measured to be at an average of 5 nm (± 1 nm). Carnauba wax having such small diameters enhances the strength of the functionalized silica nanoparticles without compromising the hydrophobicity thereof. The static water contact angle of these coatings is characterized to be 175° ± 3° and the roll-off angle thereof to be 2° ± 1°.
In the method of the present invention, carnauba wax, which is a natural material, was used for the first time with hydrophobic nanoparticles to increase the strength of the coatings. In the state-of-the-art applications, non-fluorine-based alkyl silanes with low surface energy are used and the static contact angle decreases. Although fluorine-free alkyl silane is used in this method, no such problem has been observed. The coatings do not contain fluorocarbon components and have a high static contact angle of 175° ± 3° and a roll-off angle of 2° ± 1°.
The hydrophilic silica nanoparticles are modified with alkyl silane, preferably dodecyl trichlorosilane, to make them hydrophobic. 2 grams of silica nanoparticles are added to 40 mL of toluene and stirred with the help of a magnetic stirring bar. After obtaining homogeneous mixing, 1 mL of alkyl silane is gradually added to the mixture of toluene silica nanoparticles. This solution is stirred for 3 hours. After stirring, this solution is centrifuged for 15 minutes by means of a centrifuge device. The hydrophobic silica nanoparticles obtained after centrifugation are dried in an oven at 80°C. The drying process takes approximately 12 hours.
Glass slides (l x l cm2) are placed into the washing container containing ethyl alcohol and acetone, and the cleaning process is carried out in the ultrasonic device for 10 minutes. At the end of the process, the glass slides are dried with nitrogen and cleaned in a UV-ozone device for 30 minutes.
In one embodiment of the invention, ethyl alcohol or alcohol wipes may be used for surface cleaning.
The obtained suspension is applied as a coating on a glass slide (l x l cm2) prepared for coating with the help of a spray gun with a nozzle head having an inner diameter of 0.35 mm at a fixed pressure of 2-3 bars. After performing spray coating from a distance of 30 cm and with 90° angle, it is allowed to dry in atmospheric environment. Coating can also be performed with spray bottles outside the laboratory environment.
The resulting final solution product was tested for shelf life and no precipitation was observed in the nanoparticles used in the product.
In a preferred embodiment of the invention, titanium dioxide, iron oxide and zinc oxide nanoparticles can be used instead of silica nanoparticles that are hydrophobized using alkyl silane.
In a preferred embodiment of the invention, ethyl acetate is used instead of chloroform as the solvent of camauba wax. The same experimental results are obtained for both of the solvents.
Sample Analyses
The water repellency properties and the static contact angle and roll-off angle measurements of the coated substrates are characterized by a goniometer device. Impact and abrasion resistance of the prepared coatings are determined by water
spray impact test, water jet impact test, long term water drop impact test and linear abrasion test. The destruction caused by the impact and abrasion tests on the surface is characterized by SEM and AFM devices.
The superhydrophobic coated sample having a surface area of 1 cm2 was moved on a 1000 grit silicon carbide abrasive surface under a weight of 100 grams to examine the abrasion resistance of the superhydrophobic coating. Although the superhydrophobic coating was moved about 150 cm on the abrasive surface, the static water contact angle was still 165° ± 2° and the roll-off angle was 7° ± 1°, and it still maintained its high liquid repellent property. After every 10 cm of movement of the superhydrophobic coated sample on the silicon carbide surface, the static contact angle was measured, and this was repeated 15 times. The fact that the coating preserved its superhydrophobic property despite the highly abrasive properties of the silicon abrasive surface shows that the developed method provides high mechanical strength.
The sample was found to be highly resistant to the water impact tests. In the water jet impact test, it was seen that the static contact angle of the superhydrophobic coating, to which water impact was applied for 45 minutes under pressurized water, was still 168° ± 2° and the roll-of angle thereof was 4° ± 1°. The fact that the coating still maintained its static contact angle although pressurized water formed a pressure of 32.0 kPa on the superhydrophobic surface shows that the coating has high impact resistance.
Although 400 thousand drops of water (1 drop = 0.1 mL) applied impact on the coating from a distance of 30 cm, the static contact angle was still 160° ± 2° and the roll-off angle was 10° ± 2°. The fact that the superhydrophobic coating still maintained its static contact angle although a water drop formed a pressure of 3.9 kPa on the surface of the coating surface shows that the coating has high impact resistance.
In the water spray test, impact is formed on the surface by spraying water onto the surface with the help of a spray gun from a distance of 2.5 cm to determine the impact resistance of the coating. At the end of 1000 cycles, it was observed that the static contact angle of the superhydrophobic coating was still 166° ± 2° and the roll-off angle thereof was 6° ± 2°.
Claims
1. A method of producing superhydrophobic surface coating having high impact and abrasion resistance and high-water static contact angle, characterized by the steps of
- adding 0.1 g by weight of camauba wax crystals in 20 mL of chloroform and dissolving it under heating at 100-120°C for 5-15 minutes,
- after dissolving is completed, agitating and cooling to room temperature,
- adding 0.4 grams of hydrophobic nanoparticles and stirring for 5- 15 minutes,
- placing the glass slides in a washing container containing ethyl alcohol and acetone, and cleaning them in an ultrasonic device,
- drying the glass slides with nitrogen and allowing them to sit in a UV-ozone device for 20-30 minutes,
- coating the glass slides by spraying a suspension, into which hydrophobic nanoparticles are added, by a spray gun from at least a distance of 20 cm at a fixed pressure of 2-3 bars,
- allowing to dry at atmospheric environment.
2. Superhydrophobic surface coating method according to Claim 1, characterized by use of ethyl acetate instead of chloroform as the solvent for camauba wax.
3. Superhydrophobic surface coating method according to Claim 1, characterized by the camauba wax whose diameter distributions are measured to be at an average of 5 nm (± 1 nm) after being dissolved in chloroform.
4. Superhydrophobic surface coating method according to Claim 1, characterized by obtaining coatings whose static water contact angle and roll-off angle are measured to be 172-178° and 1-3°, respectively.
5. Superhydrophobic surface coating method according to Claim 1, characterized by use of dodecyl trichlorosilane as the suspension.
6. Superhydrophobic surface coating method according to Claim 1, characterized by coating the glass slides whose surface cleaning can be performed by ethyl alcohol or alcohol wipes.
7. Superhydrophobic surface coating method according to Claim 1, characterized by spraying on a glass slide prepared for coating with the help of a spray gun having a 0.35 mm nozzle head.
8. Superhydrophobic surface coating method according to Claim 1, characterized by performing spray coating from a distance of 30 cm and with an angle of 90°.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TR2019/06035A TR201906035A1 (en) | 2019-04-24 | 2019-04-24 | DURABLE SUPERHYDROPHOBIC COATINGS WITH SELF-ORGANIZED HYERARCHIC STRUCTURES |
| TR2019/06035 | 2019-04-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2020218989A1 true WO2020218989A1 (en) | 2020-10-29 |
Family
ID=72941738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/TR2019/051108 WO2020218989A1 (en) | 2019-04-24 | 2019-12-18 | Robust superhydrophobic coatings with self- assembled hierarchical structures |
Country Status (2)
| Country | Link |
|---|---|
| TR (1) | TR201906035A1 (en) |
| WO (1) | WO2020218989A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112724436A (en) * | 2020-12-28 | 2021-04-30 | 陕西科技大学 | Super-hydrophobic radiation self-cooling material and preparation method thereof |
| CN114753182A (en) * | 2022-03-28 | 2022-07-15 | 中国科学院化学研究所 | Agricultural material for simulating surface hydrophobicity of blade and preparation method thereof |
| CN115895005A (en) * | 2022-11-28 | 2023-04-04 | 深圳供电局有限公司 | Super-hydrophobic RTV preparation method |
| CN116179004A (en) * | 2023-03-22 | 2023-05-30 | 北京华楚路美交通科技有限公司 | Method for preparing super-hydrophobic anti-fouling paint by self-assembly method and application |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015161233A1 (en) * | 2014-04-18 | 2015-10-22 | University Of Massachusetts | Methods and formulations for durable superhydrophic, self-cleaning, and superhydrophobic polymer coatings and objects having coatings thereon |
| WO2017220588A1 (en) * | 2016-06-20 | 2017-12-28 | Université de Mons | Superhydrophobic polymer compositions and uses thereof |
| WO2019045732A1 (en) * | 2017-08-31 | 2019-03-07 | Kimberly-Clark Worldwide, Inc. | Non-fluorinated water-based compositions with plant-based materials for generating superhydrophobic surfaces |
-
2019
- 2019-04-24 TR TR2019/06035A patent/TR201906035A1/en unknown
- 2019-12-18 WO PCT/TR2019/051108 patent/WO2020218989A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015161233A1 (en) * | 2014-04-18 | 2015-10-22 | University Of Massachusetts | Methods and formulations for durable superhydrophic, self-cleaning, and superhydrophobic polymer coatings and objects having coatings thereon |
| WO2017220588A1 (en) * | 2016-06-20 | 2017-12-28 | Université de Mons | Superhydrophobic polymer compositions and uses thereof |
| WO2019045732A1 (en) * | 2017-08-31 | 2019-03-07 | Kimberly-Clark Worldwide, Inc. | Non-fluorinated water-based compositions with plant-based materials for generating superhydrophobic surfaces |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112724436A (en) * | 2020-12-28 | 2021-04-30 | 陕西科技大学 | Super-hydrophobic radiation self-cooling material and preparation method thereof |
| CN114753182A (en) * | 2022-03-28 | 2022-07-15 | 中国科学院化学研究所 | Agricultural material for simulating surface hydrophobicity of blade and preparation method thereof |
| CN114753182B (en) * | 2022-03-28 | 2023-08-25 | 中国科学院化学研究所 | Material for agricultural simulation of surface hydrophobicity degree of blade and preparation method thereof |
| CN115895005A (en) * | 2022-11-28 | 2023-04-04 | 深圳供电局有限公司 | Super-hydrophobic RTV preparation method |
| CN116179004A (en) * | 2023-03-22 | 2023-05-30 | 北京华楚路美交通科技有限公司 | Method for preparing super-hydrophobic anti-fouling paint by self-assembly method and application |
| CN116179004B (en) * | 2023-03-22 | 2024-05-17 | 北京华楚路美交通科技有限公司 | Method for preparing super-hydrophobic anti-fouling paint by self-assembly method and application |
Also Published As
| Publication number | Publication date |
|---|---|
| TR201906035A1 (en) | 2020-11-23 |
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