CN113019852A - Preparation method of micro-nano structure super-hydrophobic coating constructed based on nitrile butadiene rubber powder - Google Patents
Preparation method of micro-nano structure super-hydrophobic coating constructed based on nitrile butadiene rubber powder Download PDFInfo
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- 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
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- 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
- B05D1/12—Applying particulate materials
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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
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
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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
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
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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
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
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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
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/56—Three layers or more
- B05D7/58—No clear coat specified
- B05D7/586—No clear coat specified each layer being cured, at least partially, separately
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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
- C09D109/00—Coating compositions based on homopolymers or copolymers of conjugated diene hydrocarbons
- C09D109/02—Copolymers with acrylonitrile
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- 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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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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
- B05D2202/00—Metallic substrate
- B05D2202/10—Metallic substrate based on Fe
- B05D2202/15—Stainless steel
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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
- B05D2203/00—Other substrates
- B05D2203/30—Other inorganic substrates, e.g. ceramics, silicon
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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
- B05D2203/00—Other substrates
- B05D2203/30—Other inorganic substrates, e.g. ceramics, silicon
- B05D2203/35—Glass
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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
- B05D2504/00—Epoxy polymers
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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
- B05D2530/00—Rubber or the like
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Abstract
The invention belongs to the technical field of coatings and coating, and particularly relates to a preparation method of a micro-nano structure super-hydrophobic coating constructed based on nitrile rubber powder. The method comprises the following steps: (1) respectively preparing a high-concentration adhesive and a low-concentration adhesive; (2) coating a high-concentration adhesive on a base material, spraying a layer of nitrile rubber powder on the surface of the base material, blowing off rubber powder particles which are not adhered on the surface, and curing; coating a low-concentration adhesive on a base material, spraying a layer of nitrile rubber powder on the surface of the base material, blowing off rubber powder particles which are not adhered on the surface, and curing; (3) mixing epoxy resin, tetraethylenepentamine and vinyl silicone oil, dissolving by adopting ethyl acetate and absolute ethyl alcohol, coating the mixture on the surface of the base material prepared in the step (2), and curing; (4) and (4) washing the substrate after the curing in the step (3). The method has the advantages of simple synthetic route, high yield and less pollution, and the super-hydrophobic coating prepared by the method has the advantages of price advantage, wear resistance, greenness and recoverability.
Description
Technical Field
The invention belongs to the technical field of coatings and coating, and particularly relates to a preparation method of a micro-nano structure super-hydrophobic coating constructed based on nitrile rubber powder.
Background
The research on the preparation of the super-hydrophobic surface is greatly developed in nearly 20 years, at present, the idea of preparing the super-hydrophobic surface is uniform, and the performance is mainly obtained by combining a surface micro-nano composite structure with a low surface energy material. Early research focused on chemical synthesis methods, generally using low surface energy fluorine-containing species, to form a coating with a certain microstructure on a desired surface through a series of chemical reactions, thereby obtaining a lotus leaf-like surface. With the development of deposition technology, PVD, CVD and other techniques are gradually applied to the super-hydrophobic field. The super-hydrophobic performance of the surface mainly depends on the completeness of the micro-nano composite structure, and the slight abrasion of the surface microstructure can cause the great reduction of the hydrophobic performance, so that the abrasion resistance of the super-hydrophobic coating obviously restricts the large-scale application in industry.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a preparation method of a micro-nano structure super-hydrophobic coating constructed based on nitrile rubber powder, the whole synthetic route is simple, the yield is high, the pollution is less, and the super-hydrophobic coating prepared by the method has the advantages of price advantage, wear resistance and environmental friendliness and can be recycled.
The purpose of the invention is realized by the following technical scheme:
the preparation method of the micro-nano structure super-hydrophobic coating constructed based on the nitrile rubber powder comprises the following steps:
(1) preparation of the adhesive:
respectively preparing an epoxy resin solution with high mass percentage concentration and an epoxy resin solution with low mass percentage concentration, and respectively mixing and stirring the two epoxy resin solutions and tetraethylenepentamine to prepare a high-concentration adhesive and a low-concentration adhesive;
(2) spraying nitrile rubber powder:
coating a high-concentration adhesive with the thickness of 0.01-0.02 mm on a base material, spraying a layer of nitrile rubber powder with the thickness of 0.5-1 mm and the particle size of 48-106 micrometers on the surface of the base material by using a dry spraying process, blowing off the rubber powder particles which are not adhered on the surface of the base material by using an air blower, and curing the sprayed base material in an electric heating blowing drying oven;
coating a low-concentration adhesive with the thickness of 0.05-0.2 mm on a base material, spraying a layer of nitrile rubber powder with the thickness of 0.5-1 mm and the particle size of 48-106 micrometers on the surface of the base material by using a dry spraying process, blowing off the rubber powder particles which are not adhered on the surface of the base material by using an air blower, and curing the sprayed base material in an electric heating blowing drying oven;
(3) constructing a surface microstructure:
mixing epoxy resin, tetraethylenepentamine and vinyl silicone oil, dissolving the epoxy resin, the tetraethylenepentamine and the vinyl silicone oil by adopting ethyl acetate, adding absolute ethyl alcohol, and stirring to obtain a solution; coating the solution on the surface of the base material prepared in the step (2), wherein the thickness of the coating is about 0.01-0.1 mm, and curing in an electric heating air blast drying oven;
(4) and (4) washing the base material solidified in the step (3) to obtain the base material of the micro-nano structure super-hydrophobic coating constructed based on the nitrile rubber powder.
Wherein:
the substrate is glass, ceramic tile or stainless steel. The preparation method of the micro-nano structure super-hydrophobic coating constructed based on the nitrile rubber powder can be applied to glass, ceramic tiles or stainless steel.
In order to better improve the wear resistance of the coating, in the step (1), the concentration of the epoxy resin solution with high mass percentage concentration is 33-44%; the epoxy resin solution with low mass percentage concentration is 11-22%; the stirring time is 2-4 min.
In order to better improve the utilization rate of the raw materials, in the step (2), after a layer of nitrile rubber powder is sprayed on the surface of the raw materials by using a dry spraying process, standing for 3min, blowing off the rubber powder particles which are not adhered on the surface of the raw materials by using an air blower, wherein the air speed of the air blower is 0.94-1.66m3And/min, curing for 1-2 hours at 80 ℃ in an electric heating air blast drying oven.
In order to prolong the service life of the coating, in the step (3), the mass ratio of the epoxy resin, the tetraethylenepentamine and the vinyl silicone oil is 11: 1: 2 to 5.5. Mixing epoxy resin, tetraethylenepentamine and vinyl silicone oil, dissolving the epoxy resin, the tetraethylenepentamine and the vinyl silicone oil by adopting ethyl acetate, adding absolute ethyl alcohol, stirring for 2-3 min, and preparing a solution with the solid content of 3-30%, wherein the mass ratio of the ethyl acetate to the absolute ethyl alcohol is 3: 2. curing for 5-10 hours in an electric heating air blast drying oven at 80 ℃. The solution is coated on the surface of the substrate prepared in the step (2) in a spraying or dip coating mode.
In order to improve the using effect of the coating, in the step (4), the reagent used for washing is ethyl acetate, and the washing time is 3-4 hours.
The invention provides a novel method for preparing a micro-nano structure super-hydrophobic coating constructed based on nitrile rubber by taking nitrile rubber powder, epoxy resin, tetraethylenepentamine, vinyl silicone oil, absolute ethyl alcohol and ethyl acetate as raw materials and carrying out synthetic reaction at normal temperature. The contact angle of the surface of the prepared coating can reach 165 degrees, the rolling angle is 2-4 degrees, after 5000 grams of quartz sand is subjected to abrasion test according to ASTM D968-05 standard, the contact angle can still reach 152 degrees, the rolling angle is 2-3 degrees, and after 11000 grams of quartz sand is subjected to abrasion test according to ASTM D968-05 standard, the super-hydrophobic performance is lost.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the nitrile rubber powder micro-nano structure super-hydrophobic coating is adopted, so that the wear resistance of the super-hydrophobic coating is improved, and 5kg of shakeout sand by a shakeout method still has obvious super-hydrophobic performance.
2. According to the invention, the super-hydrophobic coating is prepared by taking the nitrile rubber powder as a raw material, so that waste recycling is realized. A large amount of waste rubber products are accumulated like a mountain in life, and from the current practical experience, most of the waste rubber products belong to infusible and insoluble thermosetting high molecular wastes, namely, the waste rubber products are not melted by heating and can not be dissolved by a solvent, so that the characteristic causes great difficulty in secondary processing treatment and recycling of the waste rubber.
3. In the preparation method, the raw materials are simple to prepare, the performance is very stable, and special storage conditions are not needed; related reagents and solvents are common commercial reagents, so that the cost is low; the whole synthesis route is simple, the yield is high, and the pollution is less; the preparation method of the coating comprises three steps of synthesis, curing and washing, and compared with the traditional preparation method of the super-hydrophobic coating, the super-hydrophobic coating prepared by the method has the advantages of price advantage, wear resistance and green and recyclable property, so that the commercial production of the super-hydrophobic coating is more possible.
4. The coating prepared by the invention has potential application value in the aspects of water resistance, fog prevention, self cleaning, recovery and the like.
Drawings
FIG. 1 shows the morphology of water droplets on a superhydrophobic coating according to example 1 of the present invention (A: before abrasion; B: after abrasion);
FIG. 2 shows the morphology of water droplets on the superhydrophobic coating of example 2 of the invention (A: before abrasion; B: after abrasion);
FIG. 3 is the morphology of water droplets on the superhydrophobic coating of example 3 of the invention (A: before abrasion; B: after abrasion);
FIG. 4 shows the morphology of water droplets on the superhydrophobic coating of example 4 of the invention (A: before abrasion; B: after abrasion);
FIG. 5 shows the morphology of water droplets on the superhydrophobic coating of example 5 of the invention (A: before abrasion; B: after abrasion).
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
The procedures, conditions, reagents, test methods and the like for carrying out the present invention are general knowledge and common general knowledge in the art except for the contents specifically mentioned below, and the present invention is not particularly limited.
The particle size of the nitrile rubber powder used in the following examples is 48 to 106 μm.
Example 1
The preparation method of the micro-nano structure super-hydrophobic coating constructed based on the nitrile rubber powder comprises the following steps:
step 1. preparation of adhesive: firstly, respectively preparing epoxy resin with the mass percentage concentration of 40% and 20%, and then mixing the epoxy resin with the mass percentage concentration of 40% and 20% and tetraethylenepentamine according to the solid mass ratio of 11: 1 were mixed and stirred for 5 minutes to prepare adhesives 1 and 2, respectively.
Step 2, coating adhesive 1 (with the thickness of 0.01mm) on the glass sheet, spraying a layer of nitrile rubber powder (with the thickness of 0.8mm) on the surface of the glass sheet by using a dry spraying process, standing for 3min, and spraying the nitrile rubber powder with the thickness of 0.94-1.66m3Blowing off the rubber powder particles which are not adhered on the surface of the glass sheet by an air blower with/min air volume, and curing the glass sheet in an electric heating blowing drying oven at constant temperature of 80 ℃ for 1 hour.
Step 3, coating adhesive 2 (with the thickness of 0.1mm) on the glass sheet, spraying a layer of nitrile rubber powder (with the thickness of 0.8mm) on the surface of the glass sheet by using a dry spraying process, standing for 3min, and spraying the nitrile rubber powder with the thickness of 0.94-1.66m3Blowing off the rubber powder particles which are not adhered on the surface of the glass sheet by an air blower with/min air volume, and curing the glass sheet in an electric heating blowing drying oven at constant temperature of 80 ℃ for 1 hour.
Step 4, mixing epoxy resin, vinyl silicone oil and tetraethylenepentamine according to a solid mass ratio of 11: 2.75: 1, and the mass ratio of the used solvents of ethyl acetate and absolute ethyl alcohol is 3: 2, preparing the solid content to be 20%, stirring the mixture for 3 minutes by using a magnetic heating stirrer, spraying the mixture on a prepared glass sheet (the thickness is 0.05mm), and curing the mixture for 10 hours in an electric heating blowing drying oven at the constant temperature of 80 ℃.
And 5, soaking and washing the glass sheet after solidification for 3 hours by using ethyl acetate. And obtaining the glass sheet with the micro-nano structure super-hydrophobic coating constructed based on the nitrile rubber powder.
After curing, the contact angle was measured to be 160 ° and the roll angle was measured to be 2 ° using a contact angle tester. The coating was subjected to abrasion resistance testing in accordance with American society for testing and materials Standard ASTM D968-05 (test for measuring abrasion resistance of organic coatings by falling sand abrasion method), and the results showed that the coating was subjected to abrasion testing after falling from a guide pipe having a height of 960 mm and an inner diameter of 20 mm by 5kg of quartz sand. The coating still maintained a static contact angle with water of 155 deg..
Example 2
Example 2 differs from example 1 in that the substrate used is stainless steel.
In the step 2, the thickness of the adhesive 1 is 0.01mm, and the thickness of the nitrile rubber powder is 0.5mm
In the step 3, the thickness of the adhesive 2 is 0.05mm, and the thickness of the nitrile rubber powder is 0.5 mm.
The thickness of the spray coating in the step 4 is 0.01 mm.
After curing, the contact angle was 159 ° and the roll angle was 3 ° using a contact angle tester. The coating was subjected to abrasion resistance testing in accordance with American society for testing and materials Standard ASTM D968-05 (test for measuring abrasion resistance of organic coatings by falling sand abrasion method), and the results showed that the coating was subjected to abrasion testing after falling from a guide pipe having a height of 960 mm and an inner diameter of 20 mm by 5kg of quartz sand. The coating still maintained a static contact angle with water of 154.
Example 3
Example 3 differs from example 1 in that the substrate used is a ceramic tile.
In the step 2, the thickness of the adhesive 1 is 0.02mm, and the thickness of the nitrile rubber powder is 1 mm.
In the step 3, the thickness of the adhesive 2 is 0.2mm, and the thickness of the nitrile rubber powder is 1 mm.
The thickness of the spray coating in step 4 is 0.1 mm.
After curing, the contact angle was 157 ° and the roll angle was 4 ° using a contact angle tester. The coating was subjected to abrasion resistance testing in accordance with American society for testing and materials Standard ASTM D968-05 (test for measuring abrasion resistance of organic coatings by falling sand abrasion method), and the results showed that the coating was subjected to abrasion testing after falling from a guide pipe having a height of 960 mm and an inner diameter of 20 mm by 5kg of quartz sand. The coating still maintained a static contact angle with water of 155 deg..
Example 4
Example 4 differs from example 1 in that the mass ratio of epoxy resin to vinyl silicone oil in step 4 is 5: 1.
after curing, the contact angle was 162 ° and the roll angle was 2 ° as measured by a contact angle tester. The coating was subjected to abrasion resistance testing in accordance with American society for testing and materials Standard ASTM D968-05 (test for measuring abrasion resistance of organic coatings by falling sand abrasion method), and the results showed that the coating was subjected to abrasion testing after falling from a guide pipe having a height of 960 mm and an inner diameter of 20 mm by 5kg of quartz sand. The coating still maintains a static contact angle with water of 157 deg..
Example 5
Example 5 differs from example 1 in that stage 4 has a solids content of 5%.
After curing, the contact angle was 165 ° and the roll angle was 2 ° as measured using a contact angle tester. The coating was subjected to abrasion resistance testing in accordance with American society for testing and materials Standard ASTM D968-05 (test for measuring abrasion resistance of organic coatings by falling sand abrasion method), and the results showed that the coating was subjected to abrasion testing after falling from a guide pipe having a height of 960 mm and an inner diameter of 20 mm by 5kg of quartz sand. The coating still maintains a static contact angle with water of 160 deg..
Claims (10)
1. A preparation method of a micro-nano structure super-hydrophobic coating constructed based on nitrile butadiene rubber powder is characterized by comprising the following steps: the method comprises the following steps:
(1) preparation of the adhesive:
respectively preparing an epoxy resin solution with high mass percentage concentration and an epoxy resin solution with low mass percentage concentration, and respectively mixing and stirring the two epoxy resin solutions and tetraethylenepentamine to prepare a high-concentration adhesive and a low-concentration adhesive;
(2) spraying nitrile rubber powder:
coating a high-concentration adhesive with the thickness of 0.01-0.02 mm on a base material, spraying a layer of nitrile rubber powder with the thickness of 0.5-1 mm and the particle size of 48-106 micrometers on the surface of the base material by using a dry spraying process, blowing off the rubber powder particles which are not adhered on the surface of the base material by using an air blower, and curing the sprayed base material in an electric heating blowing drying oven;
coating a low-concentration adhesive with the thickness of 0.05-0.2 mm on a base material, spraying a layer of nitrile rubber powder with the thickness of 0.5-1 mm and the particle size of 48-106 micrometers on the surface of the base material by using a dry spraying process, blowing off the rubber powder particles which are not adhered on the surface of the base material by using an air blower, and curing the sprayed base material in an electric heating blowing drying oven;
(3) constructing a surface microstructure:
mixing epoxy resin, tetraethylenepentamine and vinyl silicone oil, dissolving the epoxy resin, the tetraethylenepentamine and the vinyl silicone oil by adopting ethyl acetate, adding absolute ethyl alcohol, and stirring to obtain a solution; coating the solution on the surface of the base material prepared in the step (2), wherein the thickness of the coating is 0.01-0.1 mm, and curing in an electric heating air blast drying oven;
(4) and (4) washing the base material solidified in the step (3) to obtain the base material of the micro-nano structure super-hydrophobic coating constructed based on the nitrile rubber powder.
2. The preparation method of the nitrile rubber powder-based micro-nano structure super-hydrophobic coating, according to claim 1, is characterized in that: the substrate is glass, ceramic tile or stainless steel.
3. The preparation method of the nitrile rubber powder-based micro-nano structure super-hydrophobic coating, according to claim 1, is characterized in that: in the step (1), the concentration of the epoxy resin solution with high mass percentage concentration is 33-44%; the epoxy resin solution with low mass percentage concentration is 11-22%; the stirring time is 2-4 min.
4. The micro-nano structure super-hydrophobic coating constructed based on nitrile rubber powder according to claim 1The preparation method is characterized by comprising the following steps: in the step (2), after a layer of nitrile rubber powder is sprayed on the surface of the rubber powder by a dry spraying process, standing for 3min, blowing off the rubber powder particles which are not adhered on the surface of the rubber powder by using an air blower, wherein the air speed of the air blower is 0.94-1.66m3/min。
5. The preparation method of the nitrile rubber powder-based micro-nano structure super-hydrophobic coating, according to claim 1, is characterized in that: in the step (2), curing is carried out for 1-2 hours in an electric heating air blast drying oven at the temperature of 80 ℃.
6. The preparation method of the nitrile rubber powder-based micro-nano structure super-hydrophobic coating, according to claim 1, is characterized in that: in the step (3), the mass ratio of the epoxy resin, the tetraethylenepentamine and the vinyl silicone oil is 11: 1: 2 to 5.5.
7. The preparation method of the nitrile rubber powder-based micro-nano structure super-hydrophobic coating, according to claim 1, is characterized in that: in the step (3), epoxy resin, tetraethylenepentamine and vinyl silicone oil are mixed, ethyl acetate is adopted for dissolving, then absolute ethyl alcohol is added for stirring for 2-3 min, and then a solution with the solid content of 3-30% is prepared, wherein the mass ratio of ethyl acetate to absolute ethyl alcohol is 3: 2.
8. the preparation method of the nitrile rubber powder-based micro-nano structure super-hydrophobic coating, according to claim 1, is characterized in that: and (3) curing for 5-10 hours at 80 ℃ in an electric heating air blast drying oven.
9. The preparation method of the nitrile rubber powder-based micro-nano structure super-hydrophobic coating, according to claim 1, is characterized in that: in the step (3), the solution is coated on the surface of the substrate prepared in the step (2) in a spraying or dip-coating mode.
10. The preparation method of the nitrile rubber powder-based micro-nano structure super-hydrophobic coating, according to claim 1, is characterized in that: in the step (4), a washing reagent is ethyl acetate, and the washing time is 3-4 hours.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115634822A (en) * | 2022-07-07 | 2023-01-24 | 山东理工大学 | Application of super-hydrophobic coating based on modified nano-silica to metal |
| CN116159722A (en) * | 2022-09-27 | 2023-05-26 | 波盈流体技术(上海)有限公司 | High-hardness valve core and surface treatment process thereof |
| CN116651721A (en) * | 2023-07-28 | 2023-08-29 | 山东理工大学 | High-wear-resistance super-hydrophobic metal plate and preparation method thereof |
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| CN115634822A (en) * | 2022-07-07 | 2023-01-24 | 山东理工大学 | Application of super-hydrophobic coating based on modified nano-silica to metal |
| CN116159722A (en) * | 2022-09-27 | 2023-05-26 | 波盈流体技术(上海)有限公司 | High-hardness valve core and surface treatment process thereof |
| CN116159722B (en) * | 2022-09-27 | 2023-12-08 | 波盈流体技术(上海)有限公司 | High-hardness valve core and surface treatment process thereof |
| CN116651721A (en) * | 2023-07-28 | 2023-08-29 | 山东理工大学 | High-wear-resistance super-hydrophobic metal plate and preparation method thereof |
| CN116651721B (en) * | 2023-07-28 | 2023-10-13 | 山东理工大学 | High-wear-resistance super-hydrophobic metal plate and preparation method thereof |
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