CN117946353A - Preparation method and application of core-shell structure photo-thermal hydrophobic nano particles - Google Patents
Preparation method and application of core-shell structure photo-thermal hydrophobic nano particles Download PDFInfo
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- 239000002105 nanoparticle Substances 0.000 title claims abstract description 92
- 230000002209 hydrophobic effect Effects 0.000 title claims abstract description 64
- 239000011258 core-shell material Substances 0.000 title claims abstract description 44
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 239000011521 glass Substances 0.000 claims abstract description 57
- 238000006243 chemical reaction Methods 0.000 claims abstract description 37
- 238000005507 spraying Methods 0.000 claims abstract description 30
- 238000003756 stirring Methods 0.000 claims abstract description 24
- 238000001035 drying Methods 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 21
- -1 amino compound Chemical class 0.000 claims abstract description 18
- 229920000642 polymer Polymers 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 238000000926 separation method Methods 0.000 claims abstract description 13
- 239000007787 solid Substances 0.000 claims abstract description 12
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 10
- 239000011737 fluorine Substances 0.000 claims abstract description 10
- 239000002904 solvent Substances 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 47
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical group CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 239000002245 particle Substances 0.000 claims description 15
- 150000001875 compounds Chemical class 0.000 claims description 12
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 11
- 235000013870 dimethyl polysiloxane Nutrition 0.000 claims description 11
- CXQXSVUQTKDNFP-UHFFFAOYSA-N octamethyltrisiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C CXQXSVUQTKDNFP-UHFFFAOYSA-N 0.000 claims description 11
- 238000004987 plasma desorption mass spectroscopy Methods 0.000 claims description 11
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 11
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 239000002041 carbon nanotube Substances 0.000 claims description 6
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 6
- 239000008367 deionised water Substances 0.000 claims description 4
- 229910021641 deionized water Inorganic materials 0.000 claims description 4
- 235000019441 ethanol Nutrition 0.000 claims description 4
- 229910021389 graphene Inorganic materials 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims 2
- 239000011248 coating agent Substances 0.000 abstract description 19
- 238000000576 coating method Methods 0.000 abstract description 19
- 230000002265 prevention Effects 0.000 abstract description 12
- 239000002086 nanomaterial Substances 0.000 abstract description 3
- 239000000178 monomer Substances 0.000 description 40
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- 238000010248 power generation Methods 0.000 description 4
- 239000011347 resin Substances 0.000 description 3
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- 230000003075 superhydrophobic effect Effects 0.000 description 3
- 239000012752 auxiliary agent Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
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- 229960003638 dopamine Drugs 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 125000003172 aldehyde group Chemical group 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
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- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229920001600 hydrophobic polymer Polymers 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
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- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
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Abstract
The invention discloses a preparation method of a core-shell structure photo-thermal hydrophobic nanoparticle, which is characterized by comprising the following steps of: the method comprises the following steps: (1) Ultrasonically dispersing the photo-thermal nano particles in a solvent to obtain a photo-thermal nano particle solution; (2) Adding a fluorine-containing amino compound solution into the material obtained in the step (1), and stirring at room temperature for reaction; (3) Dropwise adding an aldehyde group compound solution into the material obtained in the step (2), and stirring at room temperature for reaction; (4) And (3) carrying out solid-liquid separation on the material obtained in the step (3), and drying the obtained solid to obtain the polymer shell layer with hydrophobicity, which is constructed on the surface of the nano particle with the photo-thermal function below 50nm, and the micro-nano structure with low surface energy, which is constructed on the surface of the photovoltaic glass in a spraying manner, so that the polymer shell layer is used for hydrophobic and ice coating prevention application of the photovoltaic glass, and the transparency of the coating is maintained.
Description
Technical Field
The invention belongs to the field of hybrid nano materials, and particularly relates to a preparation method and application of a core-shell structure photo-thermal hydrophobic nano particle.
Background
Solar energy is used as a novel sustainable new energy source, is an important carrier for photovoltaic power generation technology, and can effectively relieve energy shortage, reduce environmental pollution and other problems. But the solar cell has a low power generation efficiency (≡22%), which greatly affects its further application. Improving the power generation efficiency thereof can be achieved by changing the constituent materials of the solar cell module and solving the environmental impact factors. The deposition of dust on the surface of the glass cover plate of the solar cell is a non-negligible factor in environmental factors. The deposition of dust particles on the surface of the glass cover plate of the solar cell can reduce the solar light transmittance, and greatly reduce the power generation efficiency of the solar cell. Therefore, dust on the surface of the solar cell needs to be removed in time, and efficient and economical operation of the photovoltaic power station is guaranteed. Wherein, the surface with hydrophobicity can effectively and economically solve the problem of dust accumulation on the surface of the photovoltaic glass. But superhydrophobic surfaces in wet and cold environments can freeze out. Therefore, it is necessary to design the coating with photo-thermal and hydrophobic properties to achieve efficient and non-destructive deicing of superhydrophobic surfaces.
At present, researches on hydrophobic and photo-thermal photovoltaic glass are mainly carried out by blending a material with photo-thermal function with a hydrophobic polymer material and then coating the blend. The technical scheme disclosed in CN113667400A is used for hydrophobic and anti-icing application of glass by adding the carbon nano tube organically modified by dopamine into thermosetting resin. The result shows that the modification of the dopamine can effectively increase the dispersibility of the carbon nano tube in the resin and is beneficial to the formation of a heat conduction network. The technical scheme disclosed in CN109486269A utilizes silicon carbide micropowder, carbon nano tube, adhesive, hydrophobic agent and solvent to construct the super-hydrophobic anti-icing coating for active photo-thermal deicing. Both methods can effectively realize the functions of water repellency and ice coating prevention. However, the preparation process is complex, the problems of addition of auxiliary agents in multiple steps and poor compatibility of the surface auxiliary agents with the matrix resin are required, and the transparency problem is not involved.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a preparation method of a core-shell structure photo-thermal hydrophobic nanoparticle.
Another object of the present invention is to provide an application of the core-shell photo-thermal hydrophobic nanoparticle prepared by the preparation method
In order to solve the problems that the surface area of the photovoltaic glass is gray and the performance is affected by ice coating under extreme conditions, the invention adopts the photothermal hydrophobic nano particles with core-shell structures to prepare the multifunctional coating with superhydrophobicity and ice coating prevention. The specific principle is that fluorine-containing amino compounds are combined with photo-thermal functional nano particles through surface hydrogen bonds with high efficiency, and then are polymerized with aldehyde group compounds on the surfaces of the nano particles through aldehyde-amine condensation reaction, so that the core-shell photo-thermal hydrophobic nano particles are generated. And then spraying the macromolecule solution and the core-shell structured photo-thermal hydrophobic nano particles on the surface of the photovoltaic glass by continuous spraying to prepare the photovoltaic glass with the functions of hydrophobic and anti-icing.
The technical scheme of the invention is as follows:
a preparation method of core-shell structured photo-thermal hydrophobic nano particles comprises the following steps:
(1) Ultrasonically dispersing photo-thermal nano particles in a solvent to obtain a photo-thermal nano particle solution, wherein the photo-thermal nano particles are ferroferric oxide nano particles, carbon nano tube nano particles or graphene nano particles with the size smaller than 50 nm;
(2) Adding a fluorine-containing amino compound solution into the material obtained in the step (1), and stirring at room temperature for reaction;
(3) Dropwise adding an aldehyde group compound solution into the material obtained in the step (2), and stirring at room temperature for reaction;
(4) And (3) carrying out solid-liquid separation on the material obtained in the step (3), and drying the obtained solid to obtain the product.
In a preferred embodiment of the present invention, the fluorine-containing amino compound in the fluorine-containing amino compound solution has the structural formula
Further preferably, the aldehyde group compound in the aldehyde group compound solution has the structural formula of
Still more preferably, the concentration of the photo-thermal nanoparticle solution is 0.5-20mg/mL, the concentration of the fluorine-containing amino compound solution is 1-10mg/mL, and the concentration of the aldehyde compound solution is 1-10mg/mL.
The core-shell photo-thermal hydrophobic nano particles prepared by the preparation method are applied to the preparation of hydrophobic anti-icing photovoltaic glass.
In a preferred embodiment of the present invention, there is provided: dispersing the core-shell structure photo-thermal hydrophobic nano particles into absolute ethyl alcohol, spraying the particles onto the surface of the photovoltaic glass cleaned by the absolute ethyl alcohol and deionized water, spraying a high molecular compound solution, and curing to obtain the hydrophobic anti-icing photovoltaic glass;
the solute of the polymer compound solution is PDMS, PFDTCS or KH570, and the solvent is ethyl acetate.
Further preferably, the concentration of the core-shell structured photo-thermal hydrophobic nano particles in the ethanol solution is 5-20mg/mL, and the concentration of the high molecular compound solution is 30-50mg/mL.
The surface of the hydrophobic anti-icing photovoltaic glass is sprayed with the core-shell structure photo-thermal hydrophobic nano particles prepared by the preparation method.
In a preferred embodiment of the present invention, the preparation method comprises: dispersing the core-shell structure photo-thermal hydrophobic nano particles into absolute ethyl alcohol, spraying the particles onto the surface of the photovoltaic glass cleaned by the absolute ethyl alcohol and deionized water, spraying a high molecular compound solution, and curing to obtain the hydrophobic anti-icing photovoltaic glass;
the solute of the polymer compound solution is PDMS, PFDTCS or KH570, and the solvent is ethyl acetate.
Further preferably, the concentration of the core-shell structured photo-thermal hydrophobic nano particles in the ethanol solution is 5-20mg/mL, the concentration of the polymer compound solution is 30-50mg/mL, the photo-thermal nano particle solution prepared in the step (1) is stirred at room temperature for reaction for 3 hours, the monomer solution A prepared in the step (2) is stirred at room temperature for reaction for 3 hours, and solid-liquid separation is carried out on materials after the reaction of the step (3) is finished.
The beneficial effects of the invention are as follows:
1. According to the invention, the polymer shell layer with hydrophobicity is constructed on the surface of the nano particles with the photo-thermal function below 50nm, and the micro-nano structure with low surface energy is constructed on the surface of the photovoltaic glass in a spraying mode, so that the polymer shell layer is used for hydrophobic and anti-icing application of the photovoltaic glass, and the transparency of the coating is maintained.
2. The preparation method of the core-shell structure photo-thermal hydrophobic nano particle has the advantages of simple operation, mild reaction conditions, short period, easy post-treatment and easy control.
3. The core-shell photo-thermal hydrophobic nano particles prepared by the invention have single and stable particle size and regular morphology.
4. The core-shell photo-thermal hydrophobic nano particles prepared by the invention can simultaneously endow photovoltaic glass with good hydrophobic and anti-icing performances.
Drawings
FIG. 1 is an infrared spectrum of Fe 3O4 @polymer, polymer and Fe 3O4 in example 1 of the present invention.
FIG. 2 is an XRD pattern for Fe 3O4 @polymer, polymer, and Fe 3O4 in example 2 of the present invention.
Detailed Description
The technical scheme of the invention is further illustrated and described below by the specific embodiments in combination with the accompanying drawings.
In the following examples:
the structural formula of the A monomer in the A monomer solution is
The structural formula of the B monomer in the B monomer solution is
The structural formula of the C monomer in the C monomer solution is
The structural formula of the D monomer in the D monomer solution is
The structural formula of the E monomer in the E monomer solution is
The structural formula of F monomer in the F monomer solution is
Example 1
(1) And (3) ultrasonically dispersing the ferroferric oxide nano particles (with the particle size of 10 nm) in 100mL of absolute ethyl alcohol to obtain a photo-thermal nano particle solution with the concentration of 3 mg/mL.
(2) And (3) adding 50mL of A monomer solution with the concentration of 3mg/mL into the photo-thermal nanoparticle solution prepared in the step (1), and stirring at room temperature for reaction for 3h.
(3) And (3) dropwise adding 50mL of D monomer solution with the concentration of 3mg/mL into the A monomer solution prepared in the step (2), and stirring at room temperature for reaction for 3h.
(4) And (3) after the reaction of the step (3), carrying out solid-liquid separation on the materials, and drying the solid part to obtain the core-shell structure photo-thermal hydrophobic nano particles. The results are shown in FIG. 1, and the infrared spectrogram of the multifunctional nano ferroferric oxide (Fe 3O4 @polymer) is shown.
(5) And dispersing the core-shell structure photo-thermal hydrophobic nano particles into absolute ethyl alcohol to prepare a solution with the concentration of 5mg/mL, and spraying the solution onto the surface of the photovoltaic glass which is cleaned by the absolute ethyl alcohol and clear water.
(6) Spraying a PDMS ethyl acetate solution with the concentration of 30mg/mL on the surface of the photovoltaic glass obtained in the step (5), and drying for 5 hours at 50 ℃ to obtain the photovoltaic glass with the functions of hydrophobicity and ice coating prevention. The test results are shown in Table 1.
Example 2
(1) Carbon nano-tube nano-particles (particle size 20 nm) are dispersed in 100mL of absolute ethyl alcohol by ultrasonic, and a photo-thermal nano-particle solution with the concentration of 3mg/mL is obtained.
(2) And (3) adding 50mL of A monomer solution with the concentration of 5mg/mL into the photo-thermal nanoparticle solution prepared in the step (1), and stirring at room temperature for reaction for 3h.
(3) And (3) dropwise adding 50mL of E monomer solution with the concentration of 3mg/mL into the A monomer solution prepared in the step (2), and stirring at room temperature for reaction for 3h. The result is shown in figure 2, the XRD spectrum of the multifunctional nano-ferroferric oxide (Fe 3O4 @polymer).
(4) And (3) after the reaction of the step (3), carrying out solid-liquid separation on the materials, and drying the solid part to obtain the core-shell structure photo-thermal hydrophobic nano particles.
(5) And dispersing the core-shell structure photo-thermal hydrophobic nano particles into absolute ethyl alcohol to prepare a solution with the concentration of 5mg/mL, and spraying the solution onto the surface of the photovoltaic glass which is cleaned by the absolute ethyl alcohol and clear water.
(6) Spraying a PDMS ethyl acetate solution with the concentration of 30mg/mL on the surface of the photovoltaic glass obtained in the step (5), and drying for 5 hours at 50 ℃ to obtain the photovoltaic glass 2 with the functions of hydrophobicity and ice coating prevention. The test results are shown in Table 1.
Example 3
(1) And (3) ultrasonically dispersing the graphene nano particles (with the particle size of 30 nm) in 100mL of absolute ethyl alcohol to obtain a photo-thermal nano particle solution with the concentration of 3 mg/mL.
(2) And (3) adding 50mL of A monomer solution with the concentration of 3mg/mL into the photo-thermal nanoparticle solution prepared in the step (1), and stirring at room temperature for reaction for 3h.
(3) And (3) dropwise adding 50mL of F monomer solution with the concentration of 3mg/mL into the A monomer solution prepared in the step (2), and stirring at room temperature for reaction for 3h.
(4) And (3) after the reaction of the step (3), carrying out solid-liquid separation on the materials, and drying the solid part to obtain the core-shell structure photo-thermal hydrophobic nano particles.
(5) And dispersing the core-shell structure photo-thermal hydrophobic nano particles into absolute ethyl alcohol to prepare a solution with the concentration of 5mg/mL, and spraying the solution onto the surface of the photovoltaic glass which is cleaned by the absolute ethyl alcohol and clear water.
(6) Spraying a PDMS ethyl acetate solution with the concentration of 30mg/mL on the surface of the photovoltaic glass obtained in the step (5), and drying for 5 hours at 50 ℃ to obtain the photovoltaic glass 3 with the functions of hydrophobicity and ice coating prevention. The test results are shown in Table 1.
Example 4
(1) And (3) ultrasonically dispersing the ferroferric oxide nano particles (with the particle size of 10 nm) in 100mL of absolute ethyl alcohol to obtain a photo-thermal nano particle solution with the concentration of 3 mg/mL.
(2) And (3) adding 50mL of B monomer solution with the concentration of 10mg/mL into the photo-thermal nanoparticle solution prepared in the step (1), and stirring at room temperature for reaction for 3h.
(3) And (3) dropwise adding 50mL of D monomer solution with the concentration of 3mg/mL into the A monomer solution prepared in the step (2), and stirring at room temperature for reaction for 3h.
(4) And (3) after the reaction of the step (3), carrying out solid-liquid separation on the materials, and drying the solid part to obtain the core-shell structure photo-thermal hydrophobic nano particles.
(5) And dispersing the core-shell structure photo-thermal hydrophobic nano particles into absolute ethyl alcohol to prepare a solution with the concentration of 5mg/mL, and spraying the solution onto the surface of the photovoltaic glass which is cleaned by the absolute ethyl alcohol and clear water.
(6) Spraying a PDMS ethyl acetate solution with the concentration of 30mg/mL on the surface of the photovoltaic glass obtained in the step (5), and drying for 5 hours at 50 ℃ to obtain the photovoltaic glass 4 with the functions of hydrophobicity and ice coating prevention. The test results are shown in Table 1.
Example 5
(1) And (3) ultrasonically dispersing the ferroferric oxide nano particles (with the particle size of 10 nm) in 100mL of absolute ethyl alcohol to obtain a photo-thermal nano particle solution with the concentration of 3 mg/mL.
(2) And (3) adding 50mL of C monomer solution with the concentration of 3mg/mL into the photo-thermal nanoparticle solution prepared in the step (1), and stirring at room temperature for reaction for 3h.
(3) And (3) dropwise adding 50mL of D monomer solution with the concentration of 3mg/mL into the A monomer solution prepared in the step (2), and stirring at room temperature for reaction for 3h.
(4) And (3) after the reaction of the step (3), carrying out solid-liquid separation on the materials, and drying the solid part to obtain the core-shell structure photo-thermal hydrophobic nano particles.
(5) And dispersing the core-shell structure photo-thermal hydrophobic nano particles into absolute ethyl alcohol to prepare a solution with the concentration of 5mg/mL, and spraying the solution onto the surface of the photovoltaic glass which is cleaned by the absolute ethyl alcohol and clear water.
(6) Spraying a PDMS ethyl acetate solution with the concentration of 30mg/mL on the surface of the photovoltaic glass obtained in the step (5), and drying for 5 hours at 50 ℃ to obtain the photovoltaic glass 5 with the functions of hydrophobicity and ice coating prevention. The test results are shown in Table 1.
Example 6
(1) And (3) ultrasonically dispersing the ferroferric oxide nano particles (with the particle size of 10 nm) in 100mL of absolute ethyl alcohol to obtain a photo-thermal nano particle solution with the concentration of 3 mg/mL.
(2) And (3) adding 50mL of A monomer solution with the concentration of 5mg/mL into the photo-thermal nanoparticle solution prepared in the step (1), and stirring at room temperature for reaction for 3h.
(3) And (3) dropwise adding 50mL of D monomer solution with the concentration of 5mg/mL into the A monomer solution prepared in the step (2), and stirring at room temperature for reaction for 3h.
(4) And (3) after the reaction of the step (3), carrying out solid-liquid separation on the materials, and drying the solid part to obtain the core-shell structure photo-thermal hydrophobic nano particles.
(5) And dispersing the core-shell structure photo-thermal hydrophobic nano particles into absolute ethyl alcohol to prepare a solution with the concentration of 10mg/mL, and spraying the solution onto the surface of the photovoltaic glass which is cleaned by the absolute ethyl alcohol and clear water.
(6) Spraying a PDMS ethyl acetate solution with the concentration of 30mg/mL on the surface of the photovoltaic glass obtained in the step (5), and drying for 5 hours at 50 ℃ to obtain the photovoltaic glass 6 with the functions of hydrophobicity and ice coating prevention. The test results are shown in Table 1.
Example 7
(1) And (3) ultrasonically dispersing the ferroferric oxide nano particles (with the particle size of 10 nm) in 100mL of absolute ethyl alcohol to obtain a photo-thermal nano particle solution with the concentration of 3 mg/mL.
(2) And (3) adding 50mL of A monomer solution with the concentration of 10mg/mL into the photo-thermal nanoparticle solution prepared in the step (1), and stirring at room temperature for reaction for 3h.
(3) And (3) dropwise adding 50mL of D monomer solution with the concentration of 10mg/mL into the A monomer solution prepared in the step (2), and stirring at room temperature for reaction for 3h.
(4) And (3) after the reaction of the step (3), carrying out solid-liquid separation on the materials, and drying the solid part to obtain the core-shell structure photo-thermal hydrophobic nano particles.
(5) And dispersing the core-shell structure photo-thermal hydrophobic nano particles into absolute ethyl alcohol to prepare a solution with the concentration of 10mg/mL, and spraying the solution onto the surface of the photovoltaic glass which is cleaned by the absolute ethyl alcohol and clear water.
(6) And (3) spraying a PDMS ethyl acetate solution with the concentration of 60mg/mL onto the surface of the photovoltaic glass obtained in the step (5), and drying for 5 hours at 50 ℃ to obtain the photovoltaic glass 7 with the functions of hydrophobicity and ice coating prevention. The test results are shown in Table 1.
Example 8
(1) And (3) ultrasonically dispersing the ferroferric oxide nano particles (with the particle size of 10 nm) in 100mL of absolute ethyl alcohol to obtain a photo-thermal nano particle solution with the concentration of 3 mg/mL.
(2) And (3) adding 50mL of A monomer solution with the concentration of 3mg/mL into the photo-thermal nanoparticle solution prepared in the step (1), and stirring at room temperature for reaction for 3h.
(3) And (3) dropwise adding 50mL of D monomer solution with the concentration of 3mg/mL into the A monomer solution prepared in the step (2), and stirring at room temperature for reaction for 3h.
(4) And (3) after the reaction of the step (3), carrying out solid-liquid separation on the materials, and drying the solid part to obtain the core-shell structure photo-thermal hydrophobic nano particles.
(5) And dispersing the core-shell structure photo-thermal hydrophobic nano particles into absolute ethyl alcohol to prepare a solution with the concentration of 10mg/mL, and spraying the solution onto the surface of the photovoltaic glass which is cleaned by the absolute ethyl alcohol and clear water.
(6) And (3) spraying PFDTCS n-hexane solution with the concentration of 60mg/mL on the surface of the photovoltaic glass obtained in the step (5), and drying for 5 hours at 50 ℃ to obtain the photovoltaic glass 8 with the functions of hydrophobicity and ice coating prevention. The test results are shown in Table 1.
Example 9
(1) And (3) ultrasonically dispersing the ferroferric oxide nano particles (with the particle size of 10 nm) in 100mL of absolute ethyl alcohol to obtain a photo-thermal nano particle solution with the concentration of 3 mg/mL.
(2) And (3) adding 50mL of A monomer solution with the concentration of 3mg/mL into the photo-thermal nanoparticle solution prepared in the step (1), and stirring at room temperature for reaction for 3h.
(3) And (3) dropwise adding 50mL of D monomer solution with the concentration of 3mg/mL into the A monomer solution prepared in the step (2), and stirring at room temperature for reaction for 3h.
(4) And (3) after the reaction of the step (3), carrying out solid-liquid separation on the materials, and drying the solid part to obtain the core-shell structure photo-thermal hydrophobic nano particles.
(5) And dispersing the core-shell structure photo-thermal hydrophobic nano particles into absolute ethyl alcohol to prepare a solution with the concentration of 10mg/mL, and spraying the solution onto the surface of the photovoltaic glass which is cleaned by the absolute ethyl alcohol and clear water.
(6) Spraying KH570 ethyl acetate solution with the concentration of 60mg/mL on the surface of the photovoltaic glass obtained in the step (5), and drying for 5h at 50 ℃ to obtain the photovoltaic glass 9 with the functions of hydrophobicity and ice coating prevention. The test results are shown in Table 1.
Comparative example 1
(1) Drying the washed photovoltaic glass at 50 ℃ for 5 hours;
(2) And carrying out hydrophobic and anti-icing performance test on the obtained glass. The test results are shown in Table 1.
TABLE 1 hydrophobic and anti-icing Properties of photovoltaic glasses
The foregoing description is only illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, i.e., the invention is not to be limited to the details of the invention.
Claims (10)
1. A preparation method of core-shell structured photo-thermal hydrophobic nano particles is characterized by comprising the following steps: the method comprises the following steps:
(1) Ultrasonically dispersing photo-thermal nano particles in a solvent to obtain a photo-thermal nano particle solution, wherein the photo-thermal nano particles are ferroferric oxide nano particles, carbon nano tube nano particles or graphene nano particles with the size smaller than 50 nm;
(2) Adding a fluorine-containing amino compound solution into the material obtained in the step (1), and stirring at room temperature for reaction;
(3) Dropwise adding an aldehyde group compound solution into the material obtained in the step (2), and stirring at room temperature for reaction;
(4) And (3) carrying out solid-liquid separation on the material obtained in the step (3), and drying the obtained solid to obtain the product.
2. The method of manufacturing according to claim 1, wherein: the structural formula of the fluorine-containing amino compound in the fluorine-containing amino compound solution is
3. The method of manufacturing as claimed in claim 2, wherein: the structural formula of the aldehyde group compound in the aldehyde group compound solution is
4. A method of preparation as claimed in claim 3, wherein: the concentration of the photo-thermal nanoparticle solution is 0.5-20mg/mL, the concentration of the fluorine-containing amino compound solution is 1-10mg/mL, and the concentration of the aldehyde compound solution is 1-10mg/mL.
5. Use of core-shell structured photo-thermal hydrophobic nanoparticles prepared by the preparation method of any one of claims 1 to 4 for preparing hydrophobic anti-icing photovoltaic glass.
6. The use according to claim 5, wherein: comprising the following steps: dispersing the core-shell structure photo-thermal hydrophobic nano particles into absolute ethyl alcohol, spraying the particles onto the surface of the photovoltaic glass cleaned by the absolute ethyl alcohol and deionized water, spraying a high molecular compound solution, and curing to obtain the hydrophobic anti-icing photovoltaic glass;
the solute of the polymer compound solution is PDMS, PFDTCS or KH570, and the solvent is ethyl acetate.
7. The use according to claim 6, wherein: the concentration of the core-shell structured photothermal hydrophobic nano particles in the ethanol solution is 5-20mg/mL, and the concentration of the high molecular compound solution is 30-50mg/mL.
8. The hydrophobic anti-icing photovoltaic glass is characterized in that: the surface of which is sprayed with the core-shell structured photo-thermal hydrophobic nano particles prepared by the preparation method of any one of claims 1 to 4.
9. A hydrophobic ice protection photovoltaic glass as claimed in claim 8 wherein: the preparation method comprises the following steps: dispersing the core-shell structure photo-thermal hydrophobic nano particles into absolute ethyl alcohol, spraying the particles onto the surface of the photovoltaic glass cleaned by the absolute ethyl alcohol and deionized water, spraying a high molecular compound solution, and curing to obtain the hydrophobic anti-icing photovoltaic glass;
the solute of the polymer compound solution is PDMS, PFDTCS or KH570, and the solvent is ethyl acetate.
10. A hydrophobic ice protection photovoltaic glass as claimed in claim 9 wherein: the concentration of the core-shell structured photothermal hydrophobic nano particles in the ethanol solution is 5-20mg/mL, and the concentration of the high molecular compound solution is 30-50mg/mL.
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