CN110922875B - Preparation method of modified sepiolite/polyurethane super-hydrophobic/super-oleophobic coating - Google Patents
Preparation method of modified sepiolite/polyurethane super-hydrophobic/super-oleophobic coating Download PDFInfo
- Publication number
- CN110922875B CN110922875B CN201911212185.1A CN201911212185A CN110922875B CN 110922875 B CN110922875 B CN 110922875B CN 201911212185 A CN201911212185 A CN 201911212185A CN 110922875 B CN110922875 B CN 110922875B
- Authority
- CN
- China
- Prior art keywords
- super
- hydrophobic
- polyurethane
- sepiolite
- modified sepiolite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
-
- 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
- C09D5/08—Anti-corrosive paints
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a preparation method of a modified sepiolite/polyurethane super-hydrophobic/super-oleophobic coating, which comprises the steps of firstly modifying the sepiolite by using tetraethyl orthosilicate and perfluorooctyl trichlorosilane through a sol-gel method to obtain the modified sepiolite, adding the modified sepiolite into a mixed solution of polyurethane and an organic solvent, spraying the mixed solution on a substrate, and curing and forming to obtain the super-hydrophobic/super-oleophobic durable composite coating; the invention uses the sepiolite as the coating substrate to prepare the super-hydrophobic/super-oleophobic coating for the first time, is environment-friendly and pollution-free, has simple preparation method, is suitable for large-scale production, has strong durability, and has good application value and wide market.
Description
Technical Field
The invention belongs to the field of preparation of super-hydrophobic/super-oleophobic materials, and particularly relates to a preparation method of a modified sepiolite/polyurethane super-hydrophobic/super-oleophobic coating.
Background
Sepiolite is a fibrous natural mineral having the largest specific surface area and excellent mechanochemical stability among clay minerals, and sepiolite powder also has a large number of hydroxyl groups on the surface, and is a preferred material for modification to impart versatility. Meanwhile, the sepiolite is a natural, environment-friendly and low-price green raw material, can replace part of chemicals, and effectively reduces the damage to the environment.
The super-hydrophobic surface is a special wetting surface developed by a lotus leaf surface and the like, and refers to a surface with a water contact angle of more than 150 degrees and a sliding angle of less than 10 degrees. The surface has the effects of super-hydrophobicity, pollution resistance, self-cleaning and the like. It was found that graded roughness and low surface energy are the prerequisite for superhydrophobicity, and materials with superhydrophobicity and resistance to contamination were prepared by biomimetic techniques. However, with the progress of society, the single super-hydrophobic material cannot meet the requirements of people, because the super-hydrophobic material has poor resistance to oil stains, and in order to be well applied to the oil-containing field, the construction of a super-hydrophobic and super-oleophobic material is more urgent and necessary.
A number of methods have been disclosed to prepare superhydrophobic/superoleophobic composites, such as: electrochemical methods, vapor deposition, electrostatic spinning and the like, but the methods have complex processes, require specific instruments and equipment, have relatively high energy consumption and cost, and are not beneficial to industrial production. Moreover, the super-hydrophobic/super-oleophobic material prepared by the existing method is generally not stable enough, easy to age, volatile, and insufficient in tolerance capability to severe working environments (strong acid and strong base).
Disclosure of Invention
The invention aims to provide a preparation method of a modified sepiolite/polyurethane super-hydrophobic/super-oleophobic coating, which is simple to operate and easy to realize.
In order to achieve the above object, the present invention adopts the following technical solutions.
A preparation method of a modified sepiolite/polyurethane super-hydrophobic/super-oleophobic coating comprises the following steps:
(1) adding sepiolite into an organic solvent, uniformly stirring, and adding the sepiolite into the organic solvent according to the proportion: ethyl orthosilicate: the mass ratio of the perfluorooctyl trichlorosilane is 1 (1.5-2) (0.5-1), uniformly dispersing tetraethoxysilane and perfluorooctyl trichlorosilane in a solvent, finally adding an acidic catalyst or alkaline stirring, filtering and drying to obtain modified sepiolite;
(2) the method comprises the steps of cleaning the surface of a substrate material, drying in the air, adding polyurethane and modified sepiolite into an organic solvent according to the mass ratio of (1-6) to (2-6) to (1-14) of the polyurethane to the organic solvent, fully stirring, coating the mixed solution on the surface of the substrate, and drying to obtain the modified sepiolite/polyurethane super-hydrophobic/super-oleophobic coating.
Further, the catalyst in the step (1) is one or a mixture of more of acetic acid, hydrochloric acid, sulfuric acid, citric acid, sodium bicarbonate and sodium carbonate in any proportion; or one or a mixture of more of ammonia water, sodium hydroxide and potassium hydroxide in any proportion.
Further, the mass ratio of the sepiolite to the organic solvent in the step (1) is 1 (20-25).
Further, in the step (1), the stirring time is 5-6 hours, and the drying temperature is 50-80 ℃.
Further, the coating method in the step (2) is a spray coating method, a dip coating method or a spin coating method.
Further, in the step (2), the drying temperature is 120-160 ℃, and the time is 50-120 min.
Further, the organic solvent is ethanol, acetone or isopropanol.
Further, the cleaning solution used for cleaning the surface of the substrate material in the step (2) is one or a mixture of several of absolute ethyl alcohol, water, acetone, methanol, isopropanol and ethylene glycol.
Further, the substrate material in the step (2) is inorganic glass, stainless steel or 45 steel.
The invention has the beneficial effects that:
(1) the sepiolite is used as a coating substrate for the first time in the process, the process is green, environment-friendly and pollution-free, modification is carried out through simple treatment, the sepiolite is used as a raw material, more functionalized hydroxyl groups are endowed on the surface through modification, additional chemical treatment and additional energy driving are not needed, and the high-value utilization of the sepiolite is reflected; the prepared coating forms the roughness of the multistage micro-nano layer, the roughness rapidly stores air, and air bubbles are formed between the coating and liquid, so that the super-hydrophobic and super-oleophobic properties are presented.
(2) According to the invention, the modified sepiolite and polyurethane are mixed and sprayed, a super-hydrophobic/super-oleophobic coating is formed after heat treatment, a solid framework is formed after the prepared super-hydrophobic/super-oleophobic coating material polyurethane is cured, the mechanical stability is enhanced, and the polyurethane has good chemical stability. The super-hydrophobic coating can form bubbles between the coating and the corrosive solution, so that the contact between the corrosive solution and the coating is reduced, and the corrosion resistance of the coating is indirectly improved, so that the coating has better repeatability and longer service life.
The preparation method has the characteristics of simple operation, easy realization, no special requirement on a coated substrate, suitability for large-area coating preparation at room temperature, strong field applicability and the like, is the most suitable coating mode for engineering and industrialization of the super-hydrophobic/super-oleophobic coating, and has good application value and wide market.
Drawings
FIG. 1 is an SEM image of a coating in example 3 of the present invention;
FIG. 2 is a water contact angle of the coating in example 3 of the present invention;
FIG. 3 is a contact angle of glycerol for the coating of example 3 of the present invention;
FIG. 4a is a drawing of a shakeout experiment apparatus for a coating in example 3 of the present invention;
FIG. 4b is a graph of water/oil contact angle of the coating as a function of sand mass;
FIG. 5 is a graph of water contact angle, roll angle and pH change for the coating of example 3 of the present invention;
Detailed Description
The present invention will be described in further detail with reference to the following examples, which are not intended to limit the invention thereto.
Example 1
(1) Adding sepiolite into ethanol in a mass ratio of 1:25, uniformly stirring, uniformly dispersing tetraethoxysilane and perfluorooctyltrichlorosilane in a solvent in a mass ratio of 3:2:50, finally adding catalyst acetic acid, stirring for 5 hours, filtering, and drying at 50 ℃ to obtain the modified sepiolite.
(2) Cleaning the surface of a 45 steel substrate material with absolute ethyl alcohol, airing, respectively adding polyurethane and modified sepiolite into the ethyl alcohol according to the mass ratio of 1:2:5, fully stirring, coating the mixed solution on the surface of the substrate by adopting a spin coating method, and drying for 60min at 120 ℃ to obtain the composite coating.
Example 2
Adding sepiolite into acetone at a mass ratio of 1:20, uniformly stirring, uniformly dispersing tetraethoxysilane and perfluorooctyltrichlorosilane in a solvent at a mass ratio of 4:1:40, finally adding a catalyst of hydrochloric acid, stirring for 5.5 hours, filtering, and drying at 70 ℃ to obtain the modified sepiolite.
(2) Cleaning the surface of a stainless steel substrate material with acetone, airing, respectively adding polyurethane and modified sepiolite into the acetone according to the mass ratio of 1:6:1, fully stirring, coating the mixed solution on the surface of the substrate by adopting an immersion coating method, and drying for 90min at 140 ℃ to obtain the composite coating.
Example 3
Adding sepiolite into isopropanol in a mass ratio of 1:22, uniformly stirring, uniformly dispersing tetraethoxysilane and perfluorooctyl trichlorosilane in a solvent in a mass ratio of 3:1:40, finally adding catalyst ammonia water, stirring for 6 hours, filtering, and drying at 80 ℃ to obtain the modified sepiolite.
(2) Washing the surface of an inorganic glass substrate material with water, airing, respectively adding polyurethane and modified sepiolite into isopropanol in a mass ratio of 1:2:8, fully stirring, coating the mixed solution on the surface of the substrate by adopting a spraying method, and drying for 120min at 160 ℃ to obtain the composite coating.
TABLE 1 degree of Water/oil contact Angle for the different examples
Table 1 shows the change of the water/oil contact angle of the coating in examples 1,2,3 of the present invention, the contact angle of the coating prepared in example 1 to water is 167.3 °, the contact angle to ethylene glycol is 159.2 °, the contact angle to glycerol is 159.3 °, the contact angle to sunflower seed oil is 153.3 °, and the contact angle to hexadecane is 153.6 °; the contact angle of the coating prepared in example 2 to water was 167.3 °, the contact angle to ethylene glycol was 158.2 °, the contact angle to glycerol was 157.3 °, the contact angle to sunflower seed oil was 153.1 ° and the contact angle to hexadecane was 151.9 °; the coating prepared in example 3 had a contact angle of 171.3 ° for water, 160.2 ° for ethylene glycol, 159.3 ° for glycerol, 155.2 ° for sunflower oil and 154.9 ° for hexadecane. Experimental results show that the coatings prepared by the three examples have good super-hydrophobic and super-oleophobic characteristics, and the coating prepared by the example 3 has the best effect.
The invention utilizes the super-hydrophobic/super-oleophobic coating to carry out a mechanical shakeout experiment, and the method comprises the following steps:
the mechanical stability of the coating is detected by simulating an outdoor sand impact experiment, the coating is placed under a shakeout device in an inclined manner of 45 degrees, sand grains with the diameter of 100-200 mu m impact the prepared coating from the height of 30cm, and after 20g of sand is impacted, the contact angles of water and glycerol of the coating are measured.
Fig. 1 is an SEM image of the prepared super-hydrophobic/super-oleophobic coating, and experimental results show that the coating forms a multi-level micro-nano layer roughness, which rapidly stores air, thereby forming a layer of air bubbles between the coating and liquid, thereby exhibiting super-hydrophobic and super-oleophobic properties.
The water contact angle of the coating in fig. 2 was 171.3 °.
The glycerol contact angle of the coating in fig. 3 is 159.3 °.
Fig. 4 shows the coating sand-falling device experiment, after 100g of gravity sand falling, the water contact angle of the coating is kept above 160 degrees, and the glycerol contact angle is kept at 150 degrees, which shows the excellent mechanical stability of the coating.
The change of the water contact angle of the coating under strong acid and strong base is shown in fig. 5, and the experimental result shows that the contact angle of the coating is still larger than 160 degrees after the coating is treated by strong acid and strong base, which indicates that the coating has better chemical stability.
Example 4
Adding sepiolite into isopropanol in a mass ratio of 1:22, uniformly stirring, uniformly dispersing tetraethoxysilane and perfluorooctyl trichlorosilane into a solvent in a mass ratio of 3.5:1.5:45, finally adding sulfuric acid and citric acid serving as catalysts into the solvent, stirring for 6 hours, filtering, and drying at 80 ℃ to obtain the modified sepiolite.
(2) Cleaning the surface of an inorganic glass substrate material with methanol and isopropanol, airing, respectively adding polyurethane and modified sepiolite into the isopropanol with the mass ratio of 3:4:14, fully stirring, coating the mixed solution on the surface of the substrate by adopting a spraying method, and drying for 50min at 160 ℃ to obtain the composite coating.
Example 5
Adding sepiolite into isopropanol in a mass ratio of 1:23, uniformly stirring, uniformly dispersing tetraethoxysilane and perfluorooctyl trichlorosilane into a solvent in a mass ratio of 3:1.5:48, finally adding sodium hydroxide and potassium hydroxide serving as catalysts into the solvent, stirring for 6 hours, filtering, and drying at 75 ℃ to obtain the modified sepiolite.
(2) Cleaning the surface of an inorganic glass substrate material with ethylene glycol, airing, respectively adding polyurethane and modified sepiolite into isopropanol in a mass ratio of 6:5:11, fully stirring, coating the mixed solution on the surface of the substrate by adopting a spraying method, and drying for 50min at 160 ℃ to obtain the composite coating.
Example 6
Adding sepiolite into isopropanol in a mass ratio of 1:20, uniformly stirring, uniformly dispersing tetraethoxysilane and perfluorooctyl trichlorosilane into a solvent in a mass ratio of 3:2:45, finally adding sodium bicarbonate and sodium carbonate serving as catalysts into the solvent, stirring for 5 hours, filtering, and drying at 60 ℃ to obtain the modified sepiolite.
(2) Cleaning the surface of an inorganic glass substrate material with ethylene glycol, airing, respectively adding polyurethane and modified sepiolite into isopropanol in a mass ratio of 6:5:11, fully stirring, coating the mixed solution on the surface of the substrate by adopting a spraying method, and drying for 60min at 160 ℃ to obtain the composite coating.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.
Claims (8)
1. A preparation method of a modified sepiolite/polyurethane super-hydrophobic/super-oleophobic coating is characterized by comprising the following steps:
(1) adding sepiolite into an organic solvent, uniformly stirring, and adding the sepiolite into the organic solvent according to the proportion: ethyl orthosilicate: the mass ratio of the perfluorooctyl trichlorosilane is 1 (1.5-2) (0.5-1), uniformly dispersing tetraethoxysilane and perfluorooctyl trichlorosilane in a solvent, finally adding an acidic catalyst or alkaline stirring, filtering and drying to obtain modified sepiolite; the mass ratio of the sepiolite to the organic solvent is 1 (20-25);
(2) the method comprises the steps of cleaning the surface of a substrate material, drying in the air, adding polyurethane and modified sepiolite into an organic solvent according to the mass ratio of (1-6) to (2-6) to (1-14) of the polyurethane to the organic solvent, fully stirring, coating the mixed solution on the surface of the substrate, and drying to obtain the modified sepiolite/polyurethane super-hydrophobic/super-oleophobic coating.
2. The preparation method of the modified sepiolite/polyurethane super-hydrophobic/super-oleophobic coating according to claim 1, is characterized in that: the catalyst in the step (1) is one or a mixture of more of acetic acid, hydrochloric acid, sulfuric acid, citric acid, sodium bicarbonate and sodium carbonate in any proportion; or one or a mixture of more of ammonia water, sodium hydroxide and potassium hydroxide in any proportion.
3. The preparation method of the modified sepiolite/polyurethane super-hydrophobic/super-oleophobic coating according to claim 1, is characterized in that: in the step (1), the stirring time is 5-6 h, and the drying temperature is 50-80 ℃.
4. The preparation method of the modified sepiolite/polyurethane super-hydrophobic/super-oleophobic coating according to claim 1, is characterized in that: the coating method in the step (2) is a spraying method, a dipping method or a spin coating method.
5. The preparation method of the modified sepiolite/polyurethane super-hydrophobic/super-oleophobic coating according to claim 1, is characterized in that: in the step (2), the drying temperature is 120-160 ℃, and the drying time is 50-120 min.
6. The preparation method of the modified sepiolite/polyurethane super-hydrophobic/super-oleophobic coating according to claim 1, is characterized in that: the organic solvent is ethanol, acetone or isopropanol.
7. The preparation method of the modified sepiolite/polyurethane super-hydrophobic/super-oleophobic coating according to claim 1, is characterized in that: the cleaning solution used for cleaning the surface of the substrate material in the step (2) is one or a mixture of several of absolute ethyl alcohol, water, acetone, methanol, isopropanol and ethylene glycol.
8. The preparation method of the modified sepiolite/polyurethane super-hydrophobic/super-oleophobic coating according to claim 1, is characterized in that: and (3) the substrate material in the step (2) is inorganic glass, stainless steel or 45 steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911212185.1A CN110922875B (en) | 2019-12-02 | 2019-12-02 | Preparation method of modified sepiolite/polyurethane super-hydrophobic/super-oleophobic coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911212185.1A CN110922875B (en) | 2019-12-02 | 2019-12-02 | Preparation method of modified sepiolite/polyurethane super-hydrophobic/super-oleophobic coating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110922875A CN110922875A (en) | 2020-03-27 |
| CN110922875B true CN110922875B (en) | 2021-07-16 |
Family
ID=69848212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911212185.1A Active CN110922875B (en) | 2019-12-02 | 2019-12-02 | Preparation method of modified sepiolite/polyurethane super-hydrophobic/super-oleophobic coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110922875B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111826073B (en) * | 2020-08-20 | 2022-02-01 | 上海岩皇环保科技有限公司 | Preparation method of waterproof coating |
| CN114751656B (en) * | 2022-05-26 | 2024-05-03 | 唐山市广千门窗有限公司 | Toughened glass and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010042191A1 (en) * | 2008-10-07 | 2010-04-15 | Ross Technology Corporation | Highly durable superhydrophobic, oleophobic and anti-icing coatings and methods and compositions for their preparation |
| KR101144742B1 (en) * | 2010-04-02 | 2012-05-24 | 부산대학교 산학협력단 | Supe-hydrophobic coating material self-cleaning coating film and Method for making the same |
| CN104789124A (en) * | 2014-12-30 | 2015-07-22 | 中国科学院兰州化学物理研究所 | A preparing method of a stable superamphiphobic surface |
| CN105440888A (en) * | 2015-12-17 | 2016-03-30 | 中国科学院兰州化学物理研究所 | Preparation method of stable superhydrophobic hot liquid coating |
-
2019
- 2019-12-02 CN CN201911212185.1A patent/CN110922875B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010042191A1 (en) * | 2008-10-07 | 2010-04-15 | Ross Technology Corporation | Highly durable superhydrophobic, oleophobic and anti-icing coatings and methods and compositions for their preparation |
| KR101144742B1 (en) * | 2010-04-02 | 2012-05-24 | 부산대학교 산학협력단 | Supe-hydrophobic coating material self-cleaning coating film and Method for making the same |
| CN104789124A (en) * | 2014-12-30 | 2015-07-22 | 中国科学院兰州化学物理研究所 | A preparing method of a stable superamphiphobic surface |
| CN105440888A (en) * | 2015-12-17 | 2016-03-30 | 中国科学院兰州化学物理研究所 | Preparation method of stable superhydrophobic hot liquid coating |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110922875A (en) | 2020-03-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110041741B (en) | Efficient water-collecting self-cleaning super-amphiphobic coating and preparation method thereof | |
| CN106893454B (en) | preparation method of sprayable and durable super-amphiphobic coating | |
| CN110922875B (en) | Preparation method of modified sepiolite/polyurethane super-hydrophobic/super-oleophobic coating | |
| CN108752988B (en) | Preparation method of super-hydrophobic silica sol and super-hydrophobic coating | |
| CN111534162B (en) | Montmorillonite-based photocatalytic super-hydrophobic coating and preparation method thereof | |
| CN105715003B (en) | Porcelain aluminum plate and preparation method thereof | |
| CN107880770B (en) | A kind of preparation method of environment protection multifunctional super-hydrophobic coat | |
| CN108033688B (en) | Silicon oxide-based super-hydrophobic coating and preparation method thereof | |
| CN110205022A (en) | A kind of environment-friendly type nanometer ceramic coating, coating and coating processes | |
| CN111822296A (en) | Preparation method of super-hydrophobic composite coating on surface of aluminum alloy | |
| CN112831272A (en) | Preparation method of high-wear-resistance self-repairing super-hydrophobic coating | |
| CN112409857A (en) | Nano TiO for fan blade2Modified fluorocarbon coating and preparation method thereof | |
| CN110964395A (en) | High-durability super-hydrophobic and super-oleophobic transparent coating and preparation method thereof | |
| CN113698850A (en) | Wear-resistant corrosion-resistant super-hydrophobic composite coating and preparation method thereof | |
| CN109082151B (en) | Water-based super-amphiphobic silica sol and preparation method and application thereof | |
| CN115181482B (en) | Self-repairing epoxy resin-based super-hydrophobic coating and preparation method thereof | |
| CN117363112A (en) | Preparation method and application of graphene fluorocarbon coating | |
| CN114657789B (en) | Organic silicon super-hydrophobic coating, super-hydrophobic coating based on organic silicon super-hydrophobic coating and application of organic silicon super-hydrophobic coating | |
| CN101818347A (en) | Treatment agent before low-temperature glazing technology and method for preparing products by using treatment agent | |
| CN111254746A (en) | Simple method for preparing super-hydrophobic filter paper by solution soaking method | |
| CN115651530B (en) | Preparation method of aluminum alloy nano easy-cleaning film and easy-cleaning aluminum alloy plate | |
| CN104672480A (en) | Surface treatment method for anti-pollution self-cleaning PVC (polyvinyl chloride) film structure material | |
| CN115197614A (en) | Waterproof anticorrosive paint for concrete and preparation method thereof | |
| CN113913087A (en) | Preparation method of normal-temperature cured wear-resistant anticorrosion super-hydrophobic coating | |
| CN112831244A (en) | Color coating paint and preparation method of color coated sheet applying color coating paint |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |