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CN111040479B - A method for preparing high-stability corrosion-resistant super-amphiphobic material using zinc oxide as material - Google Patents

A method for preparing high-stability corrosion-resistant super-amphiphobic material using zinc oxide as material Download PDF

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CN111040479B
CN111040479B CN201911333377.8A CN201911333377A CN111040479B CN 111040479 B CN111040479 B CN 111040479B CN 201911333377 A CN201911333377 A CN 201911333377A CN 111040479 B CN111040479 B CN 111040479B
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super
amphiphobic
particles
zinc oxide
drying
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CN111040479A (en
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屈孟男
何金梅
刘璐璐
孙雯超
史樊
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Xian University of Science and Technology
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Abstract

A method for preparing a high-stability corrosion-resistant super-amphiphobic material by taking zinc oxide as a material comprises the steps of adding zinc oxide particles into a solution of ammonia water and absolute ethyl alcohol, carrying out ultrasonic dispersion, and then uniformly stirring to obtain a mixed solution; adding tetraethoxysilane and perfluorodecyl triethoxysilane into the mixed solution, uniformly stirring to obtain a suspension, filtering and drying to obtain super-amphiphobic particles; adding the super-amphiphobic particles into an ethanol solution containing polytetrafluoroethylene and polyvinylpyrrolidone, ultrasonically dispersing, uniformly stirring, uniformly coating on a substrate, and drying. The invention can obtain the super-amphiphobic material with high stability through simple operation steps and mild reaction conditions, and the super-amphiphobic material not only has the advantage of no limitation of a substrate, but also has corrosion resistance. Therefore, the super-amphiphobic material with high stability, corrosion resistance and stability, which is prepared by the method disclosed by the invention, has excellent application prospects in both academic research and industrial application.

Description

Method for preparing high-stability corrosion-resistant super-amphiphobic material by taking zinc oxide as material
Technical Field
The invention belongs to the technical field of bionic hydrophobic material preparation, and particularly relates to a method for preparing a high-stability corrosion-resistant super-amphiphobic material by taking zinc oxide as a material.
Background
A superhydrophobic surface is generally defined as a solid surface having a contact angle, measured when water is in contact with the solid surface, of above 150 ° and a sliding angle of below 10 °. A surface is called a super-amphiphobic surface when the contact angle of the surface with water and oil is simultaneously higher than 150 °. These superhydrophobic/superoleophobic surfaces have many practical applications in various fields, such as self-cleaning, anti-icing, anti-fogging, anti-bacterial, and anti-corrosion, among others.
To date, techniques for preparing superhydrophobic materials are becoming more mature. However, some organic liquids tend to spread on superhydrophobic surfaces because the surface tension of the organic liquid is lower than that of the superhydrophobic surface. The best way to make superoleophobic surfaces is to modify the material surface with a lower low surface tension modifier. It is currently most common to prepare superamphiphobic materials with excellent properties by combining special rough structures with low surface energy fluorine-containing compounds. However, most of the super-amphiphobic materials prepared become weak or even lose super-amphiphobic properties after being damaged by external pressure or placed in a harsh environment.
Therefore, the method for preparing the super-amphiphobic material with high stability by a simple and low-cost method has important significance in wide application in many fields.
Disclosure of Invention
The invention aims to provide a method for preparing a high-stability corrosion-resistant super-amphiphobic material by taking zinc oxide as a material, aiming at the defects of the prior art, the method is simple and easy to realize, does not need harsh reaction conditions and complex reaction equipment, directly uses low-cost zinc oxide as a reference raw material, and can obtain the high-stability corrosion-resistant super-amphiphobic material surface by simple operation steps and mild reaction conditions.
In order to achieve the purpose, the invention adopts the technical scheme that:
a method for preparing a high-stability corrosion-resistant super-amphiphobic material by taking zinc oxide as a material comprises the following steps:
adding zinc oxide particles into a solution of ammonia water and absolute ethyl alcohol, performing ultrasonic dispersion, and then uniformly stirring to obtain a mixed solution;
step two, adding tetraethoxysilane and perfluorodecyl triethoxysilane into the mixed solution obtained in the step one under the stirring condition, continuously stirring uniformly to obtain a suspension, and then filtering and drying to obtain super-amphiphobic particles;
adding the super-amphiphobic particles into an ethanol solution containing polytetrafluoroethylene and polyvinylpyrrolidone, performing ultrasonic dispersion, and then uniformly stirring to obtain a suspension;
and step four, uniformly coating the suspension obtained in the step three on a substrate, and drying to obtain the high-stability corrosion-resistant super-amphiphobic material.
The further improvement of the invention is that in the step one, the ratio of the zinc oxide to the ammonia water to the absolute ethyl alcohol is (1.4-1.6) g, (7-10) mL, (20-30) mL.
The further improvement of the invention is that in the second step, the ratio of the ethyl orthosilicate to the perfluorodecyl triethoxysilane is (4-6) mL (0.25-0.35) mL.
The further improvement of the invention is that the ratio of the zinc oxide particles to the ethyl orthosilicate is (1.4-1.6) g (4-6) mL.
The further improvement of the invention is that in the third step, the ratio of the super-amphiphobic particles to the polytetrafluoroethylene to the polyvinylpyrrolidone to the absolute ethyl alcohol is (0.5-0.7) g, (0.15-0.25) g, (0.05-0.15) g, (5-7) mL.
The invention is further improved in that in the fourth step, during drying, the mixture is dried under the condition of room temperature and then cured under heating.
The further improvement of the invention is that the heating temperature is 100-120 ℃, and the time is 2-3 h.
The invention is further improved in that in the fourth step, the substrate is glass, copper sheet, aluminum sheet, filter paper or fabric.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention uses important inorganic functional materials, and the zinc oxide is a material, has non-toxic, low-cost and controllable structure, excellent chemical, physical, surface and interface properties, and is widely applied to various fields due to the unique properties of the zinc oxide.
2. The method has the advantages of simple process, easy operation, mild reaction conditions and no need of complex and expensive large-scale equipment.
3. The invention further develops the development of the super-amphiphobic material in practical application, and the high-stability corrosion-resistant super-amphiphobic material can be applied to many fields.
4. The contact angle of the super-amphiphobic material prepared by the method of the invention to water can reach 159 +/-1 degrees, the angle of contact to oil is higher than 150 +/-1 degrees, and the contact area of the liquid drop and the surface of the substrate is greatly reduced.
5. The contact angle value of the super-amphiphobic material prepared by the method is still higher than 150 degrees after the super-amphiphobic material is soaked in different strong acid and strong base solutions for 2 hours, and the super-amphiphobic material prepared by the method has excellent corrosion resistance. When the super-amphiphobic material prepared by the method is respectively washed by aqua regia and saturated NaOH solution to wash the surface with hydrophilic methyl blue as a pollutant, the pollutant on the surface is taken away, the surface becomes clean, and the super-amphiphobic material prepared on the surface not only has excellent corrosion resistance, but also has excellent self-cleaning performance.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
FIG. 1 is a scanning electron microscope image of the high-stability corrosion-resistant super-amphiphobic material prepared in example 1 of the present invention.
FIG. 2 is a macroscopic photograph of the high-stability corrosion-resistant super-amphiphobic material prepared in example 1 of the present invention.
Fig. 3 is a graph of the change of the contact angle of the high-stability corrosion-resistant super-amphiphobic material prepared in example 1 of the present invention after being soaked in different strong acid and strong base solutions for 2 hours.
FIG. 4 is a self-cleaning test of the high-stability corrosion-resistant super-amphiphobic material prepared in example 1 in aqua regia and saturated NaOH solution on the surface of the material. Wherein, (a) is the self-cleaning test of the aqua regia on the surface of the super-amphiphobic material, and (b) is the self-cleaning test of the saturated NaOH solution on the surface of the super-amphiphobic material.
FIG. 5 is a graph of adhesion testing of the high-stability corrosion-resistant super-amphiphobic material prepared in inventive example 1. Wherein, (a) is an adhesion test process to water, and (b) is an adhesion test process to sunflower seed oil.
FIG. 6 is an electron microscope image of the high-stability corrosion-resistant super-amphiphobic material prepared in inventive example 2 after abrasion.
FIG. 7 is a macroscopic view of the high stability corrosion resistant super-amphiphobic material prepared in inventive example 2 after abrasion.
FIG. 8 is a buoyancy test chart of the high-stability corrosion-resistant super-amphiphobic material prepared in inventive example 4. Wherein, (a) is the buoyancy test of the super-amphiphobic material to water, and (b) is the buoyancy test of the super-amphiphobic material to glycerol.
FIG. 9 is a scanning electron microscope image of the high-stability corrosion-resistant super-amphiphobic material prepared in example 4 of the present invention.
FIG. 10 is an AC impedance diagram of the high-stability corrosion-resistant super-amphiphobic material prepared in example 5 of the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
A method for preparing a high-stability corrosion-resistant super-amphiphobic material by taking zinc oxide as a material comprises the following steps:
step one, adding zinc oxide particles into a solution of ammonia water and absolute ethyl alcohol, performing 300W ultrasonic dispersion for 10-20min, and then stirring for 20-30min to obtain a mixed solution; wherein the proportion of the zinc oxide, the ammonia water (the mass fraction is 25-28 percent) and the absolute ethyl alcohol is (1.4-1.6) g, (7-10) mL, (20-30) mL; the ultrasonic dispersion is carried out firstly and then the mixture is stirred uniformly, wherein the ultrasonic dispersion is adopted to fully disperse the granular substances, shorten the stirring time and achieve the purpose of uniform dispersion.
Step two, adding ethyl orthosilicate and perfluorodecyl triethoxysilane into the mixed solution obtained in the step one under the stirring condition, continuously stirring for 5-6 hours to obtain suspension, then filtering, and drying at 80-100 ℃ for 3-4 hours to obtain super-amphiphobic particles; wherein the volume ratio of the ethyl orthosilicate to the perfluorodecyl triethoxysilane is (4-6) mL (0.25-0.35) mL;
step three, putting the super-amphiphobic particles into an ethanol solution containing polytetrafluoroethylene and polyvinylpyrrolidone, performing ultrasonic dispersion for 10-20min, and then stirring for 2-3h to obtain a suspension; wherein, the proportion of the super-amphiphobic particles, the polytetrafluoroethylene, the polyvinylpyrrolidone and the absolute ethyl alcohol is (0.5-0.7) g, (0.15-0.25) g, (0.05-0.15) g, (5-7) mL;
step four, uniformly coating the suspension obtained in the step three on a substrate, then drying at room temperature, and then placing the dried substrate in a drying box to be cured for 2-3h at the temperature of 100-120 ℃ to obtain the high-stability corrosion-resistant super-amphiphobic material.
In the second step, the tetraethoxysilane is slowly added at a constant speed.
In the first, second and third steps, stirring and reaction are carried out at room temperature.
In the fourth step, the substrate can be glass sheet, copper sheet, aluminum sheet, filter paper, fabric (cloth sheet) and the like.
The following are specific examples.
Example 1
The preparation method of this example includes the following steps:
step one, adding 1.5g of zinc oxide particles into a solution of 8mL of ammonia water and 25mL of absolute ethyl alcohol, performing 300W ultrasonic dispersion for 20min, and then stirring for 20 min;
step two, slowly adding 5mL of ethyl orthosilicate into the mixed solution obtained in the step one at a constant speed under the stirring condition, adding 0.3mL of perfluorodecyl triethoxysilane, continuously stirring for 5 hours to obtain a suspension, filtering, and drying at 80 ℃ for 4 hours to obtain super-amphiphobic particles;
adding 0.6g of super-amphiphobic particles into 6mL of absolute ethanol solution containing 0.2g of polytetrafluoroethylene and 0.1g of polyvinylpyrrolidone, performing ultrasonic dispersion for 30min, and stirring for 2h to obtain suspension;
step four, uniformly dripping the suspension obtained in the step three on a glass sheet, drying at room temperature, and then placing in a drying oven at 100 ℃ for 2.5 hours to obtain the high-stability corrosion-resistant super-amphiphobic material.
Fig. 1 is a scanning electron microscope image of the high-stability corrosion-resistant super-amphiphobic material prepared in the embodiment, and it can be seen that the modified super-amphiphobic particles are tightly combined with the organic polymer to form a micro-nano composite structure, so that the wear resistance is increased, and the high-stability corrosion-resistant super-amphiphobic material is obtained.
Fig. 2 is a macroscopic photograph of the wear-resistant durable superhydrophobic material prepared by the embodiment of the invention, and it can be seen that water droplets and oil droplets on the superamphiphobic surface are spherical.
Fig. 3 is a graph of the change of the contact angle of the high-stability corrosion-resistant super-amphiphobic material prepared by the embodiment of the invention after being soaked in different strong acid and strong base solutions for 2 hours, and it can be seen from the graph that the value of the contact angle is still higher than 150 degrees after being soaked for 2 hours, which indicates that the prepared super-amphiphobic material has excellent corrosion resistance.
Fig. 4 is a self-cleaning test of the high-stability corrosion-resistant super-amphiphobic material prepared by the embodiment of the invention on the surface of the material in aqua regia and saturated NaOH solutions, and it can be seen that when the surface with hydrophilic methyl blue as a pollutant is washed by aqua regia and saturated NaOH solutions respectively, the pollutant on the surface can be taken away, the surface becomes clean, and the prepared super-amphiphobic material not only has excellent corrosion resistance, but also has excellent self-cleaning performance.
Fig. 5 is an adhesion test chart of the high-stability corrosion-resistant super-amphiphobic material prepared by the embodiment of the invention, and it can be seen from the adhesion test chart that no part of the prepared super-amphiphobic surface is left in the falling, extruding and rising processes of water drops and sunflower seed oil drops, which shows that the super-amphiphobic material has excellent low adhesion.
Example 2
The preparation method of this example includes the following steps:
step one, adding 1.5g of zinc oxide particles into a solution of 8mL of ammonia water and 25mL of absolute ethyl alcohol, performing 300W ultrasonic dispersion for 20min, and then stirring for 20 min;
step two, slowly adding 5mL of ethyl orthosilicate into the mixed solution obtained in the step one at a constant speed under the stirring condition, adding 0.32mL of perfluorodecyl triethoxysilane, continuously stirring for 5 hours to obtain a suspension, filtering, and drying at 80 ℃ for 4 hours to obtain super-amphiphobic particles;
adding 0.6g of super-amphiphobic particles into 6mL of absolute ethanol solution containing 0.2g of polytetrafluoroethylene and 0.1g of polyvinylpyrrolidone, performing ultrasonic dispersion for 30min, and stirring for 2h to obtain suspension;
step four, uniformly dripping the suspension obtained in the step three on a glass sheet, drying at room temperature, and then placing in a drying oven at 100 ℃ for 2.5 hours to obtain the high-stability corrosion-resistant super-amphiphobic material.
FIG. 6 is an electron microscope image of the high-stability corrosion-resistant super-amphiphobic material prepared by the embodiment of the invention after abrasion, and it can be seen from the image that a new rough structure appears on the surface of the abraded super-amphiphobic material, so that the super-amphiphobic material has super-amphiphobic performance.
Fig. 7 is a macroscopic view of the high-stability corrosion-resistant super-amphiphobic material prepared by the embodiment of the invention after being worn, and it can be seen from the macroscopic view that water drops and oil drops can still keep spherical drops after being worn.
Example 3
The preparation method of this example includes the following steps:
step one, adding 1.4g of zinc oxide particles into a solution of 8mL of ammonia water and 25mL of absolute ethyl alcohol, performing 300W ultrasonic dispersion for 20min, and then stirring for 20 min;
step two, slowly adding 5mL of ethyl orthosilicate into the mixed solution obtained in the step one at a constant speed under the stirring condition, adding 0.3mL of perfluorodecyl triethoxysilane, continuously stirring for 5 hours to obtain a suspension, filtering, and drying at 80 ℃ for 4 hours to obtain super-amphiphobic particles;
adding 0.6g of super-amphiphobic particles into 6mL of absolute ethanol solution containing 0.2g of polytetrafluoroethylene and 0.1g of polyvinylpyrrolidone, performing ultrasonic dispersion for 30min, and stirring for 2h to obtain suspension;
and step four, uniformly dripping the suspension obtained in the step three on a glass sheet, drying at room temperature, and then placing in a drying oven at 120 ℃ for 2h to obtain the high-stability corrosion-resistant super-amphiphobic material.
Example 4
The preparation method of this example includes the following steps:
step one, adding 1.5g of zinc oxide particles into a solution of 8mL of ammonia water and 25mL of absolute ethyl alcohol, performing 300W ultrasonic dispersion for 20min, and then stirring for 20 min;
step two, slowly adding 5mL of ethyl orthosilicate into the mixed solution obtained in the step one at a constant speed under the stirring condition, adding 0.3mL of perfluorodecyl triethoxysilane, continuously stirring for 5 hours to obtain a suspension, filtering, and drying at 80 ℃ for 4 hours to obtain super-amphiphobic particles;
adding 0.5g of super-amphiphobic particles into 7mL of absolute ethanol solution containing 0.2g of polytetrafluoroethylene and 0.1g of polyvinylpyrrolidone, performing ultrasonic dispersion for 30min, and stirring for 2h to obtain suspension;
and step four, immersing the cleaned cloth piece into the suspension obtained in the step three for 1h, then drying the cloth piece at room temperature, and then placing the cloth piece in a drying oven at 100 ℃ for 2h to obtain the high-stability corrosion-resistant super-amphiphobic material.
FIG. 8 is a buoyancy test chart of the high-stability corrosion-resistant super-amphiphobic material prepared in the invention example 4, and it can be seen from the chart that the prepared super-amphiphobic fabric can bear 13.562g and 11.252 in water and oil respectively, which shows that the super-amphiphobic material has great potential in improving buoyancy or reducing water resistance.
FIG. 9 is a scanning electron microscope image of the high-stability corrosion-resistant super-amphiphobic material prepared by the embodiment of the invention, and it can be seen from the image that the prepared super-amphiphobic fabric has rich rough structures, and the low surface energy of the fluorine-containing silane enables the super-amphiphobic fabric to have excellent super-amphiphobic performance.
Example 5
The preparation method of this example includes the following steps:
step one, adding 1.5g of zinc oxide particles into a solution of 8mL of ammonia water and 25mL of absolute ethyl alcohol, performing 300W ultrasonic dispersion for 20min, and then stirring for 20 min;
step two, slowly adding 5mL of ethyl orthosilicate into the mixed solution obtained in the step one at a constant speed under the stirring condition, adding 0.3mL of perfluorodecyl triethoxysilane, continuously stirring for 5 hours to obtain a suspension, filtering, and drying at 80 ℃ for 4 hours to obtain super-amphiphobic particles;
adding 0.7g of super-amphiphobic particles into 7mL of absolute ethanol solution containing 0.25g of polytetrafluoroethylene and 0.15g of polyvinylpyrrolidone, performing ultrasonic dispersion for 30min, and stirring for 2h to obtain suspension;
step four, uniformly dripping the suspension obtained in the step three on an aluminum sheet, drying at room temperature, and then placing in a drying oven at 100 ℃ for 2h to obtain the high-stability corrosion-resistant super-amphiphobic material.
FIG. 10 is an alternating current impedance diagram of the high-stability corrosion-resistant super-amphiphobic material prepared by the embodiment of the invention, and it can be seen from the diagram that the semicircle diameter of the aluminum sheet of the coated super-amphiphobic material is far higher than that of the original aluminum sheet, and the larger the semicircle diameter is, the better the corrosion resistance is, which shows that the prepared super-amphiphobic material has excellent corrosion resistance.
Example 6
The preparation method of this example includes the following steps:
step one, adding 1.6g of zinc oxide particles into a solution of 8mL of ammonia water and 30mL of absolute ethyl alcohol, performing 300W ultrasonic dispersion for 20min, and then stirring for 20 min;
step two, slowly adding 5mL of ethyl orthosilicate into the mixed solution obtained in the step one at a constant speed under the stirring condition, adding 0.32mL of perfluorodecyl triethoxysilane, continuously stirring for 5 hours to obtain a suspension, filtering, and drying at 100 ℃ for 4 hours to obtain super-amphiphobic particles;
adding 0.6g of super-amphiphobic particles into 6mL of absolute ethanol solution containing 0.2g of polytetrafluoroethylene and 0.1g of polyvinylpyrrolidone, performing ultrasonic dispersion for 30min, and stirring for 3h to obtain suspension;
and step four, uniformly dripping the suspension obtained in the step three on a glass sheet, drying at room temperature, and then placing in a drying oven at 100 ℃ for 3 hours to obtain the high-stability corrosion-resistant super-amphiphobic material.
Example 7
The preparation method of this example includes the following steps:
step one, adding 1.6g of zinc oxide particles into a solution of 8mL of ammonia water and 30mL of absolute ethyl alcohol, performing 300W ultrasonic dispersion for 20min, and then stirring for 20 min;
step two, slowly adding 5mL of ethyl orthosilicate into the mixed solution obtained in the step one at a constant speed under the stirring condition, adding 0.3mL of perfluorodecyl triethoxysilane, continuously stirring for 5 hours to obtain a suspension, filtering, and drying at 100 ℃ for 4 hours to obtain super-amphiphobic particles;
adding 0.6g of super-amphiphobic particles into 6mL of absolute ethanol solution containing 0.2g of polytetrafluoroethylene and 0.1g of polyvinylpyrrolidone, performing ultrasonic dispersion for 30min, and stirring for 3h to obtain suspension;
and step four, uniformly dripping the suspension obtained in the step three on a glass sheet, drying at room temperature, and then placing in a drying oven at 100 ℃ for 3 hours to obtain the high-stability corrosion-resistant super-amphiphobic material.
Example 8
The preparation method of this example includes the following steps:
step one, adding 1.5g of zinc oxide particles into a solution of 7mL of ammonia water and 20mL of absolute ethyl alcohol, performing 300W ultrasonic dispersion for 20min, and then stirring for 25 min;
step two, slowly adding 4mL of ethyl orthosilicate into the mixed solution obtained in the step one at a constant speed under the stirring condition, adding 0.25mL of perfluorodecyl triethoxysilane, continuously stirring for 6 hours to obtain a suspension, filtering, and drying at 90 ℃ for 3 hours to obtain super-amphiphobic particles;
adding 0.5g of super-amphiphobic particles into 5mL of absolute ethanol solution containing 0.15g of polytetrafluoroethylene and 0.15g of polyvinylpyrrolidone, performing ultrasonic dispersion for 30min, and stirring for 3h to obtain suspension;
step four, uniformly dripping the suspension obtained in the step three on a copper sheet, drying at room temperature, and then placing in a drying oven at 110 ℃ for 2.5 hours to obtain the high-stability corrosion-resistant super-amphiphobic material.
Example 9
The preparation method of this example includes the following steps:
step one, adding 1.4g of zinc oxide particles into a solution of 10mL of ammonia water and 30mL of absolute ethyl alcohol, performing 300W ultrasonic dispersion for 20min, and then stirring for 30 min;
step two, slowly adding 6mL of ethyl orthosilicate into the mixed solution obtained in the step one at a constant speed under the stirring condition, adding 0.35mL of perfluorodecyl triethoxysilane, continuously stirring for 5.5 hours to obtain a suspension, filtering, and drying at 85 ℃ for 3.5 hours to obtain super-amphiphobic particles;
adding 0.6g of super-amphiphobic particles into 6mL of absolute ethanol solution containing 0.25g of polytetrafluoroethylene and 0.05g of polyvinylpyrrolidone, performing ultrasonic dispersion for 30min, and stirring for 3h to obtain suspension;
and step four, uniformly dripping the suspension obtained in the step three on filter paper, drying at room temperature, and then placing in a drying oven at 100 ℃ for 3 hours to obtain the high-stability corrosion-resistant super-amphiphobic material.

Claims (1)

1. A method for preparing a high-stability corrosion-resistant super-amphiphobic material by taking zinc oxide as a material is characterized by comprising the following steps of:
step one, adding zinc oxide particles into a solution of ammonia water and absolute ethyl alcohol, performing 300W ultrasonic dispersion for 20min, and then uniformly stirring to obtain a mixed solution; wherein the ratio of zinc oxide, ammonia water and absolute ethyl alcohol is (1.4-1.6) g, (7-10) mL, (20-30) mL; the mass fraction of the ammonia water is 25-28%;
step two, adding ethyl orthosilicate and perfluorodecyl triethoxysilane into the mixed solution obtained in the step one under the stirring condition, uniformly stirring to obtain a suspension, filtering, and drying at 80 ℃ for 4 hours to obtain super-amphiphobic particles; wherein the ratio of the ethyl orthosilicate to the perfluorodecyl triethoxysilane is (4-6) mL (0.25-0.35) mL; the ratio of the zinc oxide particles to the ethyl orthosilicate is (1.4-1.6) g, (4-6) mL;
adding the super-amphiphobic particles into an ethanol solution containing polytetrafluoroethylene and polyvinylpyrrolidone, performing ultrasonic dispersion, and then uniformly stirring to obtain a suspension; wherein the ratio of the super-amphiphobic particles to the polytetrafluoroethylene to the polyvinylpyrrolidone to the absolute ethyl alcohol is (0.5-0.7) g, (0.15-0.25) g, (0.05-0.15) g, (5-7) mL;
step four, uniformly coating the suspension obtained in the step three on a substrate, and drying to obtain the high-stability corrosion-resistant super-amphiphobic material; wherein, during drying, the raw materials are firstly dried under the condition of room temperature and then cured under heating; the heating temperature is 100-120 ℃, and the time is 2-3 h; the substrate is glass, copper sheet, aluminum sheet, filter paper or fabric;
the super-amphiphobic material has a contact angle to water of 159 +/-1 degrees, an angle to oil of more than 150 +/-1 degrees and a contact angle value of more than 150 degrees after being soaked in different strong acid and strong base solutions for 2 hours.
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