CN112724767A - Enhanced anti-reflection hydrophobic coating and preparation method thereof - Google Patents
Enhanced anti-reflection hydrophobic coating and preparation method thereof Download PDFInfo
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Abstract
The invention discloses an enhanced anti-reflection hydrophobic coating and a preparation method thereof. The method comprises the steps of coating the coating solution on the surface of a base material, and curing to obtain the hydrophobic coating. The invention constructs the anti-reflection and super-hydrophobic structure of the coating main body by spraying the silicon dioxide nano particles functionalized by the fluorosilane; the alcohol hydroxyl in the alcohol hydroxyl functionalized methacrylic acid based polymer is utilized to react with the silica nanoparticles, the chemical crosslinking between the silica nanoparticles is realized by utilizing the main chain of the methacrylic acid based polymer, and the hydrophobic layer is endowed with good structural strength, so that the mechanical strength of the coating is improved.
Description
Technical Field
The invention relates to the technical field of functional materials, in particular to a hydrophobic coating for enhancing anti-reflection and a preparation method thereof.
Background
The anti-reflection super-hydrophobic coating has wide application potential in daily life, can reduce the reflection of sunlight by a glass substrate and increase transmitted light, and is further applied to solar cells, glass outer walls and automobile glass in a large quantity. The super-hydrophobic coating is used as one of self-cleaning coatings, has larger surface roughness and low surface energy, leads the contact angle of water on the surface of the coating to be more than 150 degrees, and the rolling angle to be less than 10 degrees, and further can freely roll off to take away dust on the surface of the coating, thereby realizing self-cleaning. The super-hydrophobic performance and the anti-reflection performance are combined, so that the cleaning cost of the functional optical glass can be greatly saved, the cleaning agent is widely concerned by researchers, and great progress is made.
At present, there are literature reports: the super-hydrophobic self-cleaning anti-reflection coating adopts an electrostatic self-assembly method, silicon dioxide nano particles and polyelectrolyte are alternately assembled and sintered to obtain a silicon dioxide nano sphere coating with a rough surface, and fluorosilane is modified by a chemical vapor deposition method to obtain the anti-reflection super-hydrophobic coating with a good effect. The number of assembling layers is large, and the process is relatively complex. Also discloses an anti-reflection composite film with super-amphiphobic self-cleaning function, which comprises three layers of nano structures: the silicon dioxide solid nanosphere layer, the silicon dioxide hollow nanosphere layer paved on the silicon dioxide solid nanosphere layer and the silicon dioxide nanosheet layer cross-linked under the action of the acidic silicon dioxide cross-linking agent paved on the silicon dioxide hollow nanosphere layer are cross-linked through calcination, and the surface of the silicon dioxide nanosheet layer is modified by utilizing a vapor deposition method, so that the total thickness of the silicon dioxide solid nanosphere layer is not more than 1.5 micrometers, and the silicon dioxide hollow nanosphere layer has good mechanical strength.
The existing literature reports that research aiming at improving the mechanical property of the anti-reflection super-hydrophobic coating achieves remarkable effect, but the method is complex, large-size large-scale preparation of the functional coating cannot be realized, and the method is not beneficial to practical application.
Disclosure of Invention
Therefore, the invention provides an enhanced anti-reflection hydrophobic coating and a preparation method thereof.
In order to achieve the above purpose, the invention provides the following technical scheme:
the invention provides an enhanced anti-reflection hydrophobic coating, which is prepared from fluorosilane-modified silicon dioxide nanoparticles and an alcoholic hydroxyl functionalized methacrylic acid-based polymer.
In one embodiment of the present invention, the alcoholic hydroxyl functionalized compound comprises: ethylene glycol, glycerol, 1, 3-butanediol and pentanediol.
In one embodiment of the present invention, the methacrylate-based polymer includes 2-Aminoethyl methacrylate (AEMA), 2-Aminoethyl methacrylamide (2-aminoethylmethacrylamide), methacrylic acid, methacrylamide, Glycidyl Methacrylate (GMA), hydroxyethyl methacrylate (HEMA), methyl methacrylate polymer.
In one embodiment of the invention, the silica nanoparticles comprise silica solid nanospheres and silica hollow spheres;
the particle size of the silicon dioxide nano particles is 10-100 nm.
In one embodiment of the present invention, the fluorosilane comprises perfluorobutylsilane, perfluorooctylsilane, or perfluorodecylsilane.
The invention also provides an enhanced anti-reflection hydrophobic coating solution, which is prepared by dissolving the silica nanoparticles and the alcohol hydroxyl functionalized methacrylic acid based polymer in the ethanol solution, wherein the alcohol hydroxyl functionalized methacrylic acid based polymer is one of the claims 1 to 5;
the sum concentration of the fluorosilane-modified silicon dioxide nanoparticles and the alcoholic hydroxyl-functionalized methacrylic acid-based polymer is 1-10 mg/mL.
In one embodiment of the invention, the ethanol aqueous solution is prepared by mixing ethanol and water in a volume ratio of (1-5): 1, preparing the composition.
In one embodiment of the invention, the mass ratio of the fluorosilane modified silicon dioxide nanoparticles to the alcoholic hydroxyl functional methacrylic acid based polymer is (10-100): 1.
The invention also provides a preparation method of the hydrophobic coating for enhancing anti-reflection performance, which comprises the steps of coating the coating solution on the surface of a base material, and curing to obtain the hydrophobic coating.
The mixed solution of the silicon dioxide nano particles modified by the fluorosilane and the alcoholic hydroxyl functional methacrylic acid based polymer is sprayed on a base material, the spraying flow rate is 0.1-1 mL/s, the distance between a spray gun and a glass base material is 10-30 cm, the pressure of the spray gun is 0.2-1Mpa, and after the spraying is finished, the coating is cured for 2-4 hours at the temperature of 60-120 ℃.
In one embodiment of the present invention, the substrate is glass, ceramic, metal, or polymer material.
The invention has the following advantages:
the invention constructs the anti-reflection and super-hydrophobic structure of the coating main body by spraying the silicon dioxide nano particles functionalized by the fluorosilane; the alcohol hydroxyl in the alcohol hydroxyl functionalized methacrylic acid based polymer is utilized to react with the silica nanoparticles, the chemical crosslinking between the silica nanoparticles is realized by utilizing the main chain of the methacrylic acid based polymer, and the hydrophobic layer is endowed with good structural strength, so that the mechanical strength of the coating is improved.
The enhanced anti-reflection and anti-reflection super-hydrophobic coating has good anti-reflection and super-hydrophobic effects, high strength, simple assembly process and low energy consumption, is suitable for various transparent substrates such as glass, PMMA (polymethyl methacrylate), and the like, comprises glass windows, glass skylights, glass curtain walls, solar cell panels and the like of families, apartments, commercial buildings and public buildings, and is particularly suitable for large-area preparation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.
FIG. 1 is a graph showing the transmission spectra of integrating spheres of a glass substrate coated with a coating layer and a blank glass substrate in example 1 of the present invention;
FIG. 2 is a digital photograph of water contact angles of a glass substrate coated with a coating and a blank glass substrate in examples 2,5, 6, and 7 of the present invention, wherein A is a schematic contact angle of the coating of the present invention; b is a schematic diagram of a contact angle of the blank glass plate;
FIG. 3 is a graph showing the water contact angle of the coating prepared in example 3 of the present invention after the sand wash test.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Solid silica nanospheres (j. colloid Interface sci.,1968,26,62-69.) with a particle size of 20 nm were prepared using the Stober method.
0.3g of polyacrylic acid solution (30 wt%, molecular weight 5000) was dissolved in 4.5ml of ammonia water and ultrasonically dispersed for 10 minutes; then dropwise adding the mixture into 90ml of absolute ethyl alcohol, and stirring for 15 minutes to obtain a mixed solution; 2ml of tetraethoxysilane was added dropwise to the mixture at a rate of 45. mu.l per minute; after the dropwise addition is finished, stirring for 3 hours at room temperature, and performing centrifugal separation to obtain silicon dioxide hollow nanospheres with the particle size of 45 nanometers;
dissolving glycerol and epoxy chloropropane in 1M sodium hydroxide solution, controlling the molar ratio to be 1:10, reacting for 5 hours, adding 2-aminoethyl methacrylic acid, controlling the molar ratio to be 1:1, and reacting for 24 hours to obtain the ethylene glycol functionalized 2-aminoethyl methacrylate polymer.
Mixing 20 nm solid silicon dioxide nanospheres with 45 nm hollow silicon dioxide nanospheres according to the mass ratio of 1:1, and dissolving the mixture in an ethanol solution, wherein the volume ratio of ethanol to water is 1: 1; adding perfluorooctyl triethoxysilane with a volume ratio of 1/100, and stirring for 5 h; adding ethylene glycol functionalized 2-aminoethyl methacrylate polymer, wherein the mass ratio of the ethylene glycol functionalized 2-aminoethyl methacrylate polymer to the nanoparticles is 1: 10; the concentration of the silicon dioxide nano particles and the ethylene glycol functionalized 2-aminoethyl methacrylate polymer in the mixed solution is 1mg/mL, and the silicon dioxide nano particles and the ethylene glycol functionalized 2-aminoethyl methacrylate polymer are uniformly mixed to obtain a coating solution.
Ultrasonically washing the glass substrate for 30 minutes, and drying the glass substrate by using nitrogen; spraying the coating solution under the conditions of flow rate of 0.5mL/s, distance of 15cm and pressure of 0.6MPa to obtain a coating; and curing the coating for 1 hour at 100 ℃, and cooling to room temperature along with an oven to obtain the high-mechanical-strength anti-reflection super-hydrophobic coating.
As shown in fig. 1, the maximum transmittance of the coating in a region with a light wavelength of 400-800 nm is increased from 90.8% to 95.4% of that of a blank glass substrate, wherein the anti-reflection effect of the coating of the embodiment is shown in fig. 2; a contact angle to Water (WCA) of 160 degrees; after being pasted 10 times by using a 3M transparent adhesive tape, the contact angle of the adhesive tape to water is 158 degrees, and the adhesive tape still has super-hydrophobic performance.
Placing 40 g of sea sand with the particle size of 100-300 micrometers at a height of 1m away from the coating, and impacting the coating within two minutes to form a contact angle of the coating to water of 152.1 degrees, as shown in A in figure 2;
40 g of sea sand with the particle size of 100-300 micrometers is placed at a height of 1 meter from the blank glass, and after the sea sand impacts the blank glass within two minutes, the contact angle of the glass to water is 64.9 degrees, as shown in B in figure 2.
Example 2
The Stober method is adopted to prepare the solid silicon dioxide nanospheres with the particle size of 100 nanometers.
0.6g of polyacrylic acid solution (30 wt%, molecular weight 10000) was dissolved in 4.5ml of ammonia water and ultrasonically dispersed for 10 minutes; then dropwise adding the mixture into 90ml of absolute ethyl alcohol, and stirring for 15 minutes to obtain a mixed solution; 4ml of tetraethoxysilane was added dropwise to the mixture at a rate of 90. mu.l/min; after the dropwise addition, stirring is carried out for 10 hours at room temperature, and the sol of the hollow silica nanospheres with the particle size of 100 nanometers is obtained.
Dissolving the erythritol and the epichlorohydrin in 0.8M sodium hydroxide solution, controlling the molar ratio to be 1:10, reacting for 5 hours, adding 2-aminoethyl methacrylamide, controlling the molar ratio to be 1:1, and reacting for 24 hours to obtain the glycerol functionalized 2-aminoethyl methacrylamide polymer.
Mixing 100-nanometer solid silica nanospheres and 100-nanometer hollow silica nanospheres according to the mass ratio of 1:1, and dissolving the mixture in an ethanol solution, wherein the volume ratio of ethanol to water in the ethanol solution is 1: 10; adding perfluorodecyl triethoxysilane with a volume ratio of 1/100, and stirring for 5 hours; adding a glycerol functionalized 2-aminoethyl methacrylamide polymer, wherein the mass ratio of the glycerol functionalized 2-aminoethyl methacrylamide polymer to the nanoparticles is 1: 100; the total concentration of the silicon dioxide nano particles and the glycerol functionalized 2-aminoethyl methacrylamide polymer in the mixed solution is 10mg/mL, and the silicon dioxide nano particles and the glycerol functionalized 2-aminoethyl methacrylamide polymer are uniformly mixed to obtain a coating solution.
Ultrasonically washing the glass substrate for 30 minutes, and drying the glass substrate by using nitrogen; spraying a coating solution under the spraying conditions of the flow rate of 1mL/s, the distance of 30cm and the pressure of 1Mpa to obtain a coating; the coating is cured for 3 hours at 120 ℃, and then cooled to room temperature along with an oven, so that the high-mechanical-strength anti-reflection super-hydrophobic coating is obtained, and the contact angle of the coating prepared in the embodiment to water is 152.1 degrees.
Example 3
Preparing solid silica sol with the particle size of 100 nanometers by adopting a Stober method;
0.3g of polyacrylic acid solution (30 wt%, molecular weight 5000) was dissolved in 4.5ml of ammonia water, and ultrasonically dispersed for 10 minutes; then dropwise adding the mixture into 90ml of absolute ethyl alcohol, and stirring for 15 minutes to obtain a mixed solution; 2ml of tetraethoxysilane was added dropwise to the mixture at a rate of 45. mu.l per minute; after the dropwise addition, stirring at room temperature for 10 hours to obtain hollow silica sol with the particle size of 45 nanometers;
dissolving 1,2,5 pentanetriol and epichlorohydrin in 1.2M sodium hydroxide solution, controlling the molar ratio to be 1:10, reacting for 5 hours, adding methacrylic acid, controlling the molar ratio to be 1:1, and reacting for 24 hours to obtain the 1, 3-butanediol functionalized methacrylic acid polymer.
Mixing 100-nanometer solid silicon dioxide nanospheres and 45-nanometer hollow silicon dioxide nanospheres according to the mass ratio of 1:1, and dissolving the mixture in an ethanol solution, wherein the volume ratio of ethanol to water is 1: 5; adding 1/100 volume ratio perfluorobutyl triethoxysilane, stirring for 5 hours; adding 1,3 butanediol functionalized methacrylic acid polymer, wherein the mass ratio of the 1,3 butanediol functionalized methacrylic acid polymer to the nano particles is 1: 50; the concentration of the sum of the silica nanoparticles and the 1, 3-butanediol functionalized methacrylic acid polymer in the mixed solution is 5mg/mL, and the coating solution is obtained by uniformly mixing.
Ultrasonically washing the glass substrate for 30 minutes, and drying the glass substrate by using nitrogen; spraying the coating solution under the conditions of flow rate of 0.1mL/s, distance of 10cm and pressure of 0.1MPa to obtain a coating; and curing the coating at 60 ℃ for 1 hour, and cooling to room temperature along with an oven to obtain the high-mechanical-strength anti-reflection super-hydrophobic coating.
40 g of sea sand with the particle size of 100-300 microns is placed at a height of 1m away from the coating, and after the sea sand impacts the coating within two minutes, the contact angle of the coating to water is 153.06 degrees, as shown in figure 3.
Example 4
Preparing solid silica sol with the particle size of 100 nanometers by adopting a Stober method;
0.3g of polyacrylic acid solution (30 wt%, molecular weight 5000) was dissolved in 4.5ml of ammonia water, and ultrasonically dispersed for 10 minutes; then dropwise adding the mixture into 90ml of absolute ethyl alcohol, and stirring for 15 minutes to obtain a mixed solution; 2ml of tetraethoxysilane was added dropwise to the mixture at a rate of 45. mu.l per minute; after the dropwise addition, stirring at room temperature for 10 hours to obtain hollow silica sol with the particle size of 45 nanometers;
dissolving glycerol and epichlorohydrin in 1.2M sodium hydroxide solution, controlling the molar ratio to be 1:10, reacting for 5 hours, adding methacrylamide, controlling the molar ratio to be 1:1, reacting for 24 hours to obtain the ethylene glycol functionalized methacrylamide polymer.
Mixing 100-nanometer solid silicon dioxide nanospheres and 45-nanometer hollow silicon dioxide nanospheres according to the mass ratio of 1:1, and dissolving the mixture in an ethanol solution, wherein the volume ratio of ethanol to water is 1: 5; adding 1/100 volume ratio perfluorobutyl triethoxysilane, stirring for 5 hours; adding an ethylene glycol functionalized methacrylamide polymer, wherein the mass ratio of the ethylene glycol functionalized methacrylamide polymer to the nano particles is 1: 50; the concentration of the silicon dioxide nano particles and the sum of the ethylene glycol functionalized methacrylamide polymer in the mixed solution is 5mg/mL, and the silicon dioxide nano particles and the ethylene glycol functionalized methacrylamide polymer are uniformly mixed to obtain a coating solution.
Ultrasonically washing the glass substrate for 30 minutes, and drying the glass substrate by using nitrogen; spraying the coating solution under the conditions of flow rate of 0.1mL/s, distance of 10cm and pressure of 0.1MPa to obtain a coating; the coating is cured for 1 hour at 60 ℃, and then cooled to room temperature along with an oven, so that the high-mechanical-strength anti-reflection super-hydrophobic coating is obtained, and the contact angle of the coating prepared in the embodiment to water is 152.1 degrees.
Example 5
Preparing solid silica sol with the particle size of 100 nanometers by adopting a Stober method;
0.3g of polyacrylic acid solution (30 wt%, molecular weight 5000) was dissolved in 4.5ml of ammonia water, and ultrasonically dispersed for 10 minutes; then dropwise adding the mixture into 90ml of absolute ethyl alcohol, and stirring for 15 minutes to obtain a mixed solution; 2ml of tetraethoxysilane was added dropwise to the mixture at a rate of 45. mu.l per minute; after the dropwise addition, stirring at room temperature for 10 hours to obtain hollow silica sol with the particle size of 45 nanometers;
dissolving glycerol and epoxy chloropropane in a sodium hydroxide solution, controlling the molar ratio to be 1:10, reacting for 5 hours, adding methacrylic acid glycidic acid, and controlling the molar ratio to be 1:1, reacting for 24 hours to obtain the ethylene glycol functionalized glycidyl methacrylate polymer.
Mixing 100-nanometer solid silicon dioxide nanospheres and 45-nanometer hollow silicon dioxide nanospheres according to the mass ratio of 1:1, and dissolving the mixture in an ethanol solution, wherein the volume ratio of ethanol to water is 1: 5; adding 1/100 volume ratio perfluorobutyl triethoxysilane, stirring for 5 hours; adding ethylene glycol functionalized glycidyl methacrylate polymer, wherein the mass ratio of the polymer to the nano particles is 1: 50; the concentration of the sum of the silicon dioxide nano particles and the ethylene glycol functionalized glycidyl methacrylate polymer in the mixed solution is 5mg/mL, and the coating solution is obtained by uniformly mixing.
Ultrasonically washing the glass substrate for 30 minutes, and drying the glass substrate by using nitrogen; spraying the coating solution under the conditions of flow rate of 0.1mL/s, distance of 10cm and pressure of 0.1MPa to obtain a coating; and curing the coating at 60 ℃ for 1 hour, and cooling to room temperature along with an oven to obtain the high-mechanical-strength anti-reflection super-hydrophobic coating, wherein the contact angle of the coating to water is 152.1 degrees.
Example 6
Preparing solid silica sol with the particle size of 100 nanometers by adopting a Stober method;
0.3g of polyacrylic acid solution (30 wt%, molecular weight 5000) was dissolved in 4.5ml of ammonia water, and ultrasonically dispersed for 10 minutes; then dropwise adding the mixture into 90ml of absolute ethyl alcohol, and stirring for 15 minutes to obtain a mixed solution; 2ml of tetraethoxysilane was added dropwise to the mixture at a rate of 45. mu.l per minute; after the dropwise addition, stirring at room temperature for 10 hours to obtain hollow silica sol with the particle size of 45 nanometers;
dissolving glycerol and epoxy chloropropane in 2M sodium hydroxide solution, controlling the molar ratio to be 1:10, reacting for 5 hours, adding methacrylic glycolic acid, controlling the molar ratio to be 1:1, and reacting for 24 hours to obtain the glycol functionalized hydroxyethyl methacrylate polymer.
Mixing 100-nanometer solid silicon dioxide nanospheres and 45-nanometer hollow silicon dioxide nanospheres according to the mass ratio of 1:1, and dissolving the mixture in an ethanol solution, wherein the volume ratio of ethanol to water is 1: 5; adding 1/100 volume ratio perfluorobutyl triethoxysilane, stirring for 5 hours; adding ethylene glycol functionalized hydroxyethyl methacrylate polymer, wherein the mass ratio of the ethylene glycol functionalized hydroxyethyl methacrylate polymer to the nano particles is 1: 50; the concentration of the sum of the silicon dioxide nano particles and the ethylene glycol functionalized hydroxyethyl methacrylate polymer in the mixed solution is 5mg/mL, and the coating solution is obtained by uniformly mixing.
Ultrasonically washing the glass substrate for 30 minutes, and drying the glass substrate by using nitrogen; spraying the coating solution under the conditions of flow rate of 0.1mL/s, distance of 10cm and pressure of 0.1MPa to obtain a coating; and curing the coating at 60 ℃ for 1 hour, and cooling to room temperature along with an oven to obtain the high-mechanical-strength anti-reflection super-hydrophobic coating, wherein the antenna of the coating to water is 152.1 ℃.
Example 7
Preparing solid silica sol with the particle size of 100 nanometers by adopting a Stober method;
0.3g of polyacrylic acid solution (30 wt%, molecular weight 5000) was dissolved in 4.5ml of ammonia water, and ultrasonically dispersed for 10 minutes; then dropwise adding the mixture into 90ml of absolute ethyl alcohol, and stirring for 15 minutes to obtain a mixed solution; 2ml of tetraethoxysilane was added dropwise to the mixture at a rate of 45. mu.l per minute; after the dropwise addition, stirring at room temperature for 10 hours to obtain hollow silica sol with the particle size of 45 nanometers;
dissolving butanetriol and epoxy chloropropane in 1.8M sodium hydroxide solution, controlling the molar ratio to be 1:10, reacting for 5 hours, adding methacrylic acid, controlling the molar ratio to be 1:1, and reacting for 24 hours to obtain the ethylene glycol functionalized methyl methacrylate polymer.
Mixing 100-nanometer solid silicon dioxide nanospheres and 45-nanometer hollow silicon dioxide nanospheres according to the mass ratio of 1:1, and dissolving the mixture in an ethanol solution, wherein the volume ratio of ethanol to water is 1: 5; adding 1/100 volume ratio perfluorobutyl triethoxysilane, stirring for 5 hours; adding ethylene glycol functionalized methyl methacrylate polymer, wherein the mass ratio of the ethylene glycol functionalized methyl methacrylate polymer to the nano particles is 1: 50; the concentration of the silicon dioxide nano particles and the ethylene glycol functionalized methyl methacrylate polymer in the mixed solution is 5mg/mL, and the coating solution is obtained by uniformly mixing.
Ultrasonically washing the glass substrate for 30 minutes, and drying the glass substrate by using nitrogen; spraying the coating solution under the conditions of flow rate of 0.1mL/s, distance of 10cm and pressure of 0.1MPa to obtain a coating; and curing the coating at 60 ℃ for 1 hour, and cooling to room temperature along with an oven to obtain the high-mechanical-strength anti-reflection super-hydrophobic coating, wherein the antenna of the coating to water is 152.1 ℃.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (10)
1. An enhanced anti-reflection hydrophobic coating is characterized in that,
the coating is prepared from raw materials including fluorosilane modified silicon dioxide nano particles and an alcoholic hydroxyl functionalized methacrylic acid based polymer.
2. The enhanced anti-reflective hydrophobic coating of claim 1,
the alcohol hydroxyl functionalized compound comprises: ethylene glycol, glycerol, 1, 3-butanediol and pentanediol.
3. The enhanced anti-reflective hydrophobic coating of claim 1,
the methacrylic acid-based polymer comprises 2-aminoethyl methacrylate, 2-aminoethyl methacrylamide, methacrylic acid, methacrylamide, glycidyl methacrylate, hydroxyethyl methacrylate and methyl methacrylate polymer.
4. The enhanced anti-reflective hydrophobic coating of claim 1,
the silicon dioxide nano particles comprise silicon dioxide solid nanospheres and silicon dioxide hollow spheres;
the particle size of the silicon dioxide nano particles is 10-100 nm.
5. The enhanced anti-reflective hydrophobic coating of claim 1,
the fluorosilane comprises perfluorobutylsilane, perfluorooctylsilane or perfluorodecylsilane.
6. A hydrophobic coating solution for enhancing anti-reflection and anti-reflection is characterized in that,
the coating solution is prepared by dissolving silica nanoparticles, the alcoholic hydroxyl functionalized methacrylic acid based polymer of any one of claims 1 to 5 in an ethanol solution;
the sum concentration of the fluorosilane-modified silicon dioxide nanoparticles and the alcoholic hydroxyl-functionalized methacrylic acid-based polymer is 1-10 mg/mL.
7. The enhanced anti-reflective hydrophobic coating solution of claim 6,
the ethanol water solution is prepared by mixing ethanol and water in a volume ratio of (1-5): 1, preparing the composition.
8. The enhanced anti-reflective hydrophobic coating solution of claim 6,
the mass ratio of the fluorosilane modified silicon dioxide nano particles to the alcoholic hydroxyl functional methacrylic acid-based polymer is (10-100): 1.
9. A preparation method of a hydrophobic coating for enhancing anti-reflection and anti-reflection is characterized in that,
the method is to apply the coating solution of any one of claims 6 to 8 on the surface of a substrate and cure to obtain the hydrophobic coating.
10. The method of claim 9, wherein the hydrophobic coating is applied to the substrate,
the base material is glass, ceramic, metal or high molecular material.
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