CN112812642A - Solar photovoltaic glass super-hydrophobic self-cleaning material and preparation method thereof - Google Patents
Solar photovoltaic glass super-hydrophobic self-cleaning material and preparation method thereof Download PDFInfo
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- 239000011521 glass Substances 0.000 title claims abstract description 95
- 230000003075 superhydrophobic effect Effects 0.000 title claims abstract description 78
- 239000011538 cleaning material Substances 0.000 title claims abstract description 62
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 claims abstract description 55
- 238000003756 stirring Methods 0.000 claims abstract description 53
- -1 modified tetragonal lanthanum oxide Chemical class 0.000 claims abstract description 45
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 238000002156 mixing Methods 0.000 claims abstract description 30
- 229920000178 Acrylic resin Polymers 0.000 claims abstract description 26
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 26
- 239000004814 polyurethane Substances 0.000 claims abstract description 26
- PYJJCSYBSYXGQQ-UHFFFAOYSA-N trichloro(octadecyl)silane Chemical compound CCCCCCCCCCCCCCCCCC[Si](Cl)(Cl)Cl PYJJCSYBSYXGQQ-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000001035 drying Methods 0.000 claims abstract description 20
- 238000001914 filtration Methods 0.000 claims abstract description 20
- 238000010438 heat treatment Methods 0.000 claims abstract description 20
- 238000005406 washing Methods 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 15
- 229920002635 polyurethane Polymers 0.000 claims abstract description 15
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910021485 fumed silica Inorganic materials 0.000 claims abstract description 11
- 229920005749 polyurethane resin Polymers 0.000 claims abstract description 11
- 238000000227 grinding Methods 0.000 claims abstract description 10
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 36
- 238000006243 chemical reaction Methods 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 16
- 229920001296 polysiloxane Polymers 0.000 claims description 16
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 15
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 13
- 229910021389 graphene Inorganic materials 0.000 claims description 13
- 239000002994 raw material Substances 0.000 claims description 12
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 10
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 9
- 229920002545 silicone oil Polymers 0.000 claims description 4
- 239000003973 paint Substances 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 description 21
- 230000000052 comparative effect Effects 0.000 description 15
- 238000012360 testing method Methods 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000002209 hydrophobic effect Effects 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 210000003608 fece Anatomy 0.000 description 2
- 239000002086 nanomaterial Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241001330498 Corsia Species 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
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Abstract
The application relates to the field of super-hydrophobic materials, and particularly discloses a solar photovoltaic glass super-hydrophobic self-cleaning material and a preparation method thereof. The solar photovoltaic glass super-hydrophobic self-cleaning material comprises a solution A, polyurethane, acrylic resin, fumed silica, tetragonal lanthanum oxide and octadecyl trichlorosilane; the preparation method comprises the following steps: mixing tetragonal lanthanum oxide with the solution A, heating in a water bath and stirring, adding octadecyltrichlorosilane, filtering, washing and drying a product to obtain modified tetragonal lanthanum oxide; mixing the fumed silica with the solution A, heating in a water bath, stirring, adding octadecyltrichlorosilane, filtering, washing and drying a product to obtain modified silica; and mixing polyurethane and acrylic resin, adding the modified tetragonal lanthanum oxide, the modified silicon dioxide and the solution A, and grinding and dispersing to obtain the solar photovoltaic glass super-hydrophobic self-cleaning material. The material prepared by the application can improve the problem that dirt is easily accumulated on the surface of photovoltaic glass.
Description
Technical Field
The application relates to the field of super-hydrophobic materials, in particular to a solar photovoltaic glass super-hydrophobic self-cleaning material and a preparation method thereof.
Background
In pursuit of green environment and environment-friendly life, solar energy is taken as renewable energy which is concerned by society all over the world, and the social problems of exhaustion of chemical fuel, air pollution and global warming can be effectively solved. The environmental protection material industry in the world is producing and using solar panels to utilize solar energy, however, the cleaning of the dirt on the surface of the solar panels becomes a big problem. Rainy weather, urban pollution, bird and insect feces accumulation, microbial growth and reproduction and other factors all reduce the use efficiency of solar panels, and cleaning these pollutants from their surfaces requires a great deal of labor, chemicals and water. At present, some companies or power stations at home and abroad select a physical cleaning method to clean the solar panel, a large amount of manpower and water resources are needed to be spent on cleaning, and the power generation efficiency can be ensured only by regularly cleaning dust on the surface of the photovoltaic glass. Therefore, the development of a self-cleaning material with strong cleaning function, low cost and no damage to the solar panel is urgent.
Disclosure of Invention
The application provides a super-hydrophobic self-cleaning material for solar photovoltaic glass and a preparation method thereof, aiming at solving the problem that the photovoltaic glass is exposed outdoors for a long time and is easy to deposit dust and bird feces to influence the transmissivity of the photovoltaic glass, so that the photovoltaic power generation efficiency is reduced.
In a first aspect, the application provides a solar photovoltaic glass super-hydrophobic self-cleaning material, which adopts the following technical scheme:
the solar photovoltaic glass super-hydrophobic self-cleaning material comprises the following raw materials in parts by weight:
preferably, the solution a is one of isopropanol, methanol or ethanol.
Preferably, the paint also comprises polysiloxane, and the polysiloxane is 2-5 parts by weight.
Preferably, the polysiloxane is a single-ended monohydroxypropyl silicone oil, and the relative molecular mass of the single-ended monohydroxypropyl silicone oil is 1000 or 2000.
Preferably, the graphene-based composite material further comprises 0.01-1 part of graphene by mass.
Preferably, the paint also comprises a silane coupling agent, wherein the silane coupling agent accounts for 5-10 parts by weight.
In a second aspect, the application provides a preparation method of a solar photovoltaic glass super-hydrophobic self-cleaning material, which adopts the following technical scheme:
a preparation method of a solar photovoltaic glass super-hydrophobic self-cleaning material comprises the following steps:
(1) mixing tetragonal lanthanum oxide with part of the solution A, controlling the temperature to be 45-50 ℃ to carry out water bath heating, simultaneously controlling the rotating speed to be 250-300 r/min to stir for 25-30 min, adding octadecyltrichlorosilane to continue reacting for 6-8 h after stirring is finished, filtering and washing a product after the reaction is finished, and drying for 5-10 min at the temperature of 80-100 ℃ to obtain modified tetragonal lanthanum oxide;
(2) mixing fumed silica with part of the solution A, controlling the temperature to be 65-70 ℃, carrying out water bath heating, simultaneously controlling the rotating speed to be 250-300 r/min, stirring for 25-30 min, adding octadecyltrichlorosilane for continuing to react for 6.5-7 h after stirring is finished, filtering and washing a product after the reaction is finished, and drying for 5-10 min at the temperature of 80-100 ℃ to obtain modified silica;
(3) and mixing polyurethane and acrylic resin, sequentially adding the modified tetragonal lanthanum oxide, the modified silicon dioxide and the solution A into the mixture of the polyurethane and the acrylic resin, grinding for 2-6 h, and performing ultrasonic dispersion for 20-30 min to obtain the solar photovoltaic glass super-hydrophobic self-cleaning material.
Preferably, in the step (3), after the ultrasonic dispersion is completed, polysiloxane is added into the mixture of the modified tetragonal lanthanum oxide, the modified silicon dioxide, the solution A, the polyurethane and the acrylic resin, the mixture is stirred for 1-2 hours at the rotating speed of 500-800 r/min, and after the stirring is completed, the ultrasonic dispersion is performed for 20-30 minutes, so that the solar photovoltaic glass super-hydrophobic self-cleaning material is obtained.
Preferably, in the step (3), after the ultrasonic dispersion is completed, adding graphene and a silane coupling agent into the mixture of the modified tetragonal lanthanum oxide, the modified silicon dioxide, the solution A, the polyurethane and the acrylic resin, stirring for 1-2 hours at a rotation speed of 500-800 r/min, and after the stirring is completed, performing ultrasonic dispersion for 20-30 minutes to obtain the solar photovoltaic glass superhydrophobic self-cleaning material.
In summary, the present application has the following beneficial effects:
1. after the lanthanum oxide is modified, the surface of the lanthanum oxide is in a tetragonal needle shape, and a geometric micro-nano structure of the surface of the material is increased, so that the surface of the material has more detailed roughness, and the super-hydrophobic effect of the material is improved; after the modified tetragonal lanthanum oxide is subjected to network crosslinking and curing by acrylic resin and polyurethane, the mechanical property of the needle-shaped structure is improved, and the wear resistance of the material is further improved;
2. the polysiloxane can further modify the surface structure of the material, so that the surface of the material can have a more detailed micro-nano structure, and the hydrophobic property of the material is further improved;
3. two kinds of inorganic material synergism jointly of four corners type lanthanum oxide and silica in this application promote the wearability of this material, hydrophobic property and to the adnexed fastness of glass substrate.
Drawings
Fig. 1 is a picture of contact angle of a water drop on the surface of photovoltaic glass in application example 1 of the present application.
Fig. 2 is a picture of the contact angle of a water drop on the surface of the photovoltaic glass in application example 2 of the present application.
Fig. 3 is a picture of the contact angle of a water drop on the surface of the photovoltaic glass in application example 3 of the present application.
Fig. 4 is a picture of the contact angle of a water drop on the surface of the photovoltaic glass in application example 4 of the present application.
Fig. 5 is a photograph showing the contact angle of a water drop on the surface of the photovoltaic glass in comparative application example 1.
Fig. 6 is a photograph showing the contact angle of a water drop on the surface of the photovoltaic glass in comparative application example 2.
Fig. 7 is a photograph showing the contact angle of a water drop on the surface of the photovoltaic glass in comparative application example 3.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples.
Raw material
Polyurethane was purchased from andonghuatai with model number AH 200;
the acrylic resin is purchased from Kesichuang and has the model A2601;
the silane coupling agent is purchased from Corsia and has the model number of KH 550.
Examples
Example 1
The solar photovoltaic glass super-hydrophobic self-cleaning material comprises the following raw materials in parts by weight:
the preparation method of the solar photovoltaic glass super-hydrophobic self-cleaning material comprises the following steps:
(1) mixing tetragonal lanthanum oxide with 80 parts of isopropanol, heating in water bath at the controlled temperature of 48 ℃, simultaneously stirring at the controlled rotation speed of 280r/min for 30min, adding 10 parts of octadecyltrichlorosilane for continuing to react for 6h, filtering and washing a product after the reaction is finished, and drying at the controlled temperature of 80 ℃ for 10min to obtain modified tetragonal lanthanum oxide;
(2) mixing fumed silica and 80 parts of isopropanol, heating in a water bath at the temperature of 65 ℃, simultaneously stirring for 30min at the rotating speed of 280r/min, adding 10 parts of octadecyltrichlorosilane for continuing to react for 7h after stirring is finished, filtering and washing a product after the reaction is finished, and drying for 10min at the temperature of 80 ℃ to obtain modified silica;
(3) mixing polyurethane and acrylic resin, sequentially adding modified tetragonal lanthanum oxide, modified silicon dioxide and 20 parts of isopropanol into the mixture of the polyurethane and the acrylic resin, grinding for 2 hours, ultrasonically dispersing for 30 minutes, adding polysiloxane, graphene and a silane coupling agent into the obtained product, stirring for 2 hours at a rotation speed of 600r/min, and ultrasonically dispersing for 30 minutes after stirring is finished to obtain the solar photovoltaic glass superhydrophobic self-cleaning material.
Example 2
The solar photovoltaic glass super-hydrophobic self-cleaning material comprises the following raw materials in parts by weight:
the preparation method of the solar photovoltaic glass super-hydrophobic self-cleaning material comprises the following steps:
(1) mixing tetragonal lanthanum oxide with 80 parts of ethanol, heating in water bath at the temperature of 45 ℃, simultaneously stirring at the rotation speed of 250r/min for 30min, adding 10 parts of octadecyltrichlorosilane for continuous reaction for 6h after stirring is finished, filtering and washing a product after the reaction is finished, and drying at the temperature of 80 ℃ for 10min to obtain modified tetragonal lanthanum oxide;
(2) mixing fumed silica and 80 parts of ethanol, heating in a water bath at the temperature of 65 ℃, simultaneously stirring for 30min at the rotating speed of 250r/min, adding 10 parts of octadecyltrichlorosilane for continuing to react for 7h after stirring is finished, filtering and washing a product after the reaction is finished, and drying for 10min at the temperature of 80 ℃ to obtain modified silica;
(3) mixing polyurethane and acrylic resin, sequentially adding modified tetragonal lanthanum oxide, modified silicon dioxide and 20 parts of ethanol into the mixture of the polyurethane and the acrylic resin, grinding for 2 hours, ultrasonically dispersing for 30 minutes, adding polysiloxane, graphene and a silane coupling agent into the obtained product, stirring for 2 hours at a rotation speed of 600r/min, and ultrasonically dispersing for 30 minutes after stirring is finished to obtain the solar photovoltaic glass superhydrophobic self-cleaning material.
Example 3
The solar photovoltaic glass super-hydrophobic self-cleaning material comprises the following raw materials in parts by weight:
the preparation method of the solar photovoltaic glass super-hydrophobic self-cleaning material comprises the following steps:
(1) mixing tetragonal lanthanum oxide with 80 parts of methanol, heating in water bath at the temperature of 50 ℃, simultaneously stirring at the rotation speed of 300r/min for 30min, adding 10 parts of octadecyltrichlorosilane for continuous reaction for 6h after stirring is finished, filtering and washing a product after the reaction is finished, and drying at the temperature of 80 ℃ for 10min to obtain modified tetragonal lanthanum oxide;
(2) mixing fumed silica and 80 parts of isopropanol, heating in a water bath at the temperature of 65 ℃, simultaneously stirring for 30min at the rotation speed of 300r/min, adding 10 parts of octadecyltrichlorosilane for continuing to react for 7h after stirring is finished, filtering and washing a product after the reaction is finished, and drying for 10min at the temperature of 80 ℃ to obtain modified silica;
(3) mixing polyurethane and acrylic resin, sequentially adding modified tetragonal lanthanum oxide, modified silicon dioxide and 20 parts of ethanol into the mixture of the polyurethane and the acrylic resin, grinding for 2 hours, ultrasonically dispersing for 30 minutes, adding polysiloxane, graphene and a silane coupling agent into the obtained product, stirring for 2 hours at a rotation speed of 600r/min, and ultrasonically dispersing for 30 minutes after stirring is finished to obtain the solar photovoltaic glass superhydrophobic self-cleaning material.
Example 4
The solar photovoltaic glass super-hydrophobic self-cleaning material comprises the following raw materials in parts by weight:
the preparation method of the solar photovoltaic glass super-hydrophobic self-cleaning material comprises the following steps:
(1) mixing tetragonal lanthanum oxide with 80 parts of isopropanol, heating in water bath at the controlled temperature of 48 ℃, simultaneously stirring at the controlled rotation speed of 280r/min for 30min, adding 10 parts of octadecyltrichlorosilane for continuing to react for 6h, filtering and washing a product after the reaction is finished, and drying at the controlled temperature of 80 ℃ for 10min to obtain modified tetragonal lanthanum oxide;
(2) mixing fumed silica and 80 parts of isopropanol, heating in a water bath at the temperature of 65 ℃, simultaneously stirring for 30min at the rotating speed of 280r/min, adding 15 parts of octadecyltrichlorosilane for continuing reaction for 7h after stirring is finished, filtering and washing a product after the reaction is finished, and drying for 10min at the temperature of 80 ℃ to obtain modified silica;
(3) mixing polyurethane and acrylic resin, sequentially adding modified tetragonal lanthanum oxide, modified silicon dioxide and 20 parts of isopropanol into the mixture of the polyurethane and the acrylic resin, grinding for 2 hours, ultrasonically dispersing for 30 minutes, adding polysiloxane, graphene and a silane coupling agent into the obtained product, stirring for 2 hours at a rotation speed of 600r/min, and ultrasonically dispersing for 30 minutes after stirring is finished to obtain the solar photovoltaic glass superhydrophobic self-cleaning material.
Example 5
The solar photovoltaic glass super-hydrophobic self-cleaning material comprises the following raw materials in parts by weight:
the preparation method of the solar photovoltaic glass super-hydrophobic self-cleaning material comprises the following steps:
(1) mixing tetragonal lanthanum oxide with 10 parts of isopropanol, controlling the temperature to be 48 ℃ to carry out water bath heating, controlling the rotating speed to be 280r/min, stirring for 30min, adding 5 parts of octadecyl trichlorosilane, continuing to react for 7h, filtering and washing a product after the reaction is finished, and drying for 8min at the temperature of 90 ℃ to obtain modified tetragonal lanthanum oxide;
(2) mixing fumed silica and 10 parts of isopropanol, controlling the temperature to be 70 ℃ to carry out water bath heating, simultaneously controlling the rotating speed to be 280r/min to stir for 30min, after stirring is finished, adding 5 parts of octadecyl trichlorosilane to continue reacting for 6.5h, after the reaction is finished, filtering and washing a product, and controlling the temperature to be 90 ℃ to dry for 8min to obtain modified silica;
(3) mixing polyurethane and acrylic resin, sequentially adding modified tetragonal lanthanum oxide, modified silicon dioxide and 10 parts of isopropanol into the mixture of the polyurethane and the acrylic resin, grinding for 4 hours, ultrasonically dispersing for 20 minutes, adding polysiloxane, graphene and a silane coupling agent into the obtained product, stirring for 1 hour at the rotation speed of 500r/min, and ultrasonically dispersing for 20 minutes after stirring is finished to obtain the solar photovoltaic glass superhydrophobic self-cleaning material.
Example 6
The solar photovoltaic glass super-hydrophobic self-cleaning material comprises the following raw materials in parts by weight:
the preparation method of the solar photovoltaic glass super-hydrophobic self-cleaning material comprises the following steps:
(1) mixing tetragonal lanthanum oxide with 90 parts of isopropanol, heating in water bath at the controlled temperature of 50 ℃, simultaneously stirring at the controlled rotation speed of 280r/min for 25min, adding 15 parts of octadecyltrichlorosilane for continuing to react for 8h, filtering and washing a product after the reaction is finished, and drying at the controlled temperature of 100 ℃ for 5min to obtain modified tetragonal lanthanum oxide;
(2) mixing fumed silica and 90 parts of isopropanol, controlling the temperature to be 70 ℃ to carry out water bath heating, simultaneously controlling the rotating speed to be 280r/min to stir for 25min, adding 15 parts of octadecyl trichlorosilane to continue reacting for 6.5h after stirring is finished, filtering and washing a product after the reaction is finished, and drying for 5min at the temperature of 100 ℃ to obtain modified silica;
(3) mixing polyurethane and acrylic resin, sequentially adding modified tetragonal lanthanum oxide, modified silicon dioxide and 20 parts of isopropanol into the mixture of the polyurethane and the acrylic resin, grinding for 6 hours, ultrasonically dispersing for 25 minutes, adding polysiloxane, graphene and a silane coupling agent into the obtained product, stirring for 1.5 hours at the rotation speed of 800r/min, and ultrasonically dispersing for 25 minutes after stirring is finished to obtain the solar photovoltaic glass superhydrophobic self-cleaning material.
Application example
Application example 1
The solar photovoltaic glass super-hydrophobic self-cleaning material prepared in the embodiment 1 is coated on the surface of photovoltaic glass and dried for 2 hours at 50 ℃ to obtain the self-cleaning super-hydrophobic photovoltaic glass.
Application example 2
The solar photovoltaic glass super-hydrophobic self-cleaning material prepared in the embodiment 2 is coated on the surface of photovoltaic glass and is kept stand for 24 hours at 25 ℃, and the self-cleaning super-hydrophobic photovoltaic glass is obtained.
Application example 3
The solar photovoltaic glass super-hydrophobic self-cleaning material prepared in the embodiment 3 is coated on the surface of photovoltaic glass and dried for 2 hours at the temperature of 50 ℃ to obtain the self-cleaning super-hydrophobic photovoltaic glass.
Application example 4
The solar photovoltaic glass super-hydrophobic self-cleaning material prepared in the embodiment 4 is coated on the surface of photovoltaic glass and is kept stand for 24 hours at 25 ℃, and the self-cleaning super-hydrophobic photovoltaic glass is obtained.
Comparative example
Comparative example 1
The solar photovoltaic glass super-hydrophobic self-cleaning material comprises the following raw materials in parts by weight:
the preparation method of the solar photovoltaic glass super-hydrophobic self-cleaning material comprises the following steps:
(1) mixing tetragonal lanthanum oxide with 80 parts of isopropanol, heating in water bath at the controlled temperature of 48 ℃, simultaneously stirring at the controlled rotation speed of 280r/min for 30min, adding 5 parts of octadecyltrichlorosilane for continuing to react for 6h, filtering and washing a product after the reaction is finished, and drying at the controlled temperature of 80 ℃ for 10min to obtain modified tetragonal lanthanum oxide;
(2) mixing fumed silica and 80 parts of isopropanol, heating in a water bath at the temperature of 65 ℃, simultaneously stirring for 30min at the rotating speed of 280r/min, adding 5 parts of octadecyltrichlorosilane for continuing to react for 7h after stirring is finished, filtering and washing a product after the reaction is finished, and drying for 10min at the temperature of 80 ℃ to obtain modified silica;
(3) mixing polyurethane and acrylic resin, sequentially adding modified tetragonal lanthanum oxide, modified silicon dioxide and 20 parts of isopropanol into the mixture of the polyurethane and the acrylic resin, grinding for 2 hours, ultrasonically dispersing for 30 minutes, adding polysiloxane, graphene and a silane coupling agent into the obtained product, stirring for 2 hours at a rotation speed of 600r/min, and ultrasonically dispersing for 30 minutes after stirring is finished to obtain the solar photovoltaic glass superhydrophobic self-cleaning material.
Comparative example 2
The super-hydrophobic self-cleaning material for the solar photovoltaic glass is different from the material in the embodiment 2 in that the raw material does not contain lanthanum oxide.
The preparation method of the solar photovoltaic glass super-hydrophobic self-cleaning material is the same as that of the embodiment 2.
Comparative example 3
The super-hydrophobic self-cleaning material for the solar photovoltaic glass is different from the material in the embodiment 2 in that the raw material does not contain a silane coupling agent.
The preparation method of the solar photovoltaic glass super-hydrophobic self-cleaning material is the same as that of the embodiment 2.
Comparative application example
Comparative application example 1
And (3) coating the solar photovoltaic glass super-hydrophobic self-cleaning material prepared in the comparative example 1 on the surface of the photovoltaic glass, and drying for 2 hours at 50 ℃ to obtain the self-cleaning super-hydrophobic photovoltaic glass.
Comparative application example 2
And (3) coating the solar photovoltaic glass super-hydrophobic self-cleaning material prepared in the comparative example 2 on the surface of the photovoltaic glass, and standing for 24 hours at 24 ℃ to obtain the self-cleaning super-hydrophobic photovoltaic glass.
Comparative application example 3
And (3) coating the solar photovoltaic glass super-hydrophobic self-cleaning material prepared in the comparative example 3 on the surface of the photovoltaic glass, and standing for 24 hours at 24 ℃ to obtain the self-cleaning super-hydrophobic photovoltaic glass.
Performance test
And carrying out contact angle, acid and alkali corrosion resistance tests and adhesion tests on the self-cleaning super-hydrophobic photovoltaic glass prepared in the corresponding application examples 1-4 and the comparative application examples 1-3.
1. Contact Angle testing
And observing the contact angle between the water drop and the surface of the self-cleaning super-hydrophobic photovoltaic glass by using an optical contact angle tester.
2. Acid resistance test
And (3) immersing the self-cleaning super-hydrophobic photovoltaic glass to be tested into a hydrochloric acid solution, standing for 48h at the temperature of 25 ℃, and observing the falling condition of the solar photovoltaic glass super-hydrophobic self-cleaning material on the surface of the self-cleaning super-hydrophobic photovoltaic glass.
3. Alkali resistance test
And (3) immersing the self-cleaning super-hydrophobic photovoltaic glass to be tested into a sodium hydroxide solution, standing for 48h at the temperature of 25 ℃, and observing the falling condition of the solar photovoltaic glass super-hydrophobic self-cleaning material on the surface of the self-cleaning super-hydrophobic photovoltaic glass.
4. Adhesion test
The self-cleaning super-hydrophobic photovoltaic glass to be tested is tested according to GB/T1720-1979.
The results of the above tests are reported in table 1.
TABLE 1
According to the test results, the solar photovoltaic glass super-hydrophobic self-cleaning material prepared by the invention has the advantages of strong adhesive force, corrosion resistance, good coating hydrophobic effect, contact angle to water larger than 150 ℃, easy cleaning after use, and improvement of the problem of power generation efficiency reduction caused by the fact that photovoltaic glass is easy to become dirty.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (9)
1. The solar photovoltaic glass super-hydrophobic self-cleaning material is characterized by comprising the following raw materials in parts by mass:
2. the solar photovoltaic glass superhydrophobic self-cleaning material of claim 1, wherein: the solution A is one of isopropanol, methanol or ethanol.
3. The solar photovoltaic glass superhydrophobic self-cleaning material of claim 1, wherein: the paint also comprises polysiloxane, wherein the polysiloxane accounts for 2-5 parts by weight.
4. The solar photovoltaic glass superhydrophobic self-cleaning material of claim 3, wherein: the polysiloxane is single-ended monohydroxypropyl silicone oil, and the relative molecular mass of the single-ended monohydroxypropyl silicone oil is 1000 or 2000.
5. The solar photovoltaic glass superhydrophobic self-cleaning material of claim 1, wherein: the graphene material further comprises 0.01-1 part by mass of graphene.
6. The solar photovoltaic glass superhydrophobic self-cleaning material of claim 1, wherein: the adhesive further comprises a silane coupling agent, wherein the silane coupling agent accounts for 5-10 parts by weight.
7. The preparation method of the solar photovoltaic glass superhydrophobic self-cleaning material according to any one of claims 1-6, characterized by comprising the following steps:
(1) mixing tetragonal lanthanum oxide with part of the solution A, controlling the temperature to be 45-50 ℃ to carry out water bath heating, simultaneously controlling the rotating speed to be 250-300 r/min to stir for 25-30 min, adding octadecyltrichlorosilane to continue reacting for 6-8 h after stirring is finished, filtering and washing a product after the reaction is finished, and drying for 5-10 min at the temperature of 80-100 ℃ to obtain modified tetragonal lanthanum oxide;
(2) mixing fumed silica with part of the solution A, controlling the temperature to be 65-70 ℃, carrying out water bath heating, simultaneously controlling the rotating speed to be 250-300 r/min, stirring for 25-30 min, adding octadecyltrichlorosilane for continuing to react for 6.5-7 h after stirring is finished, filtering and washing a product after the reaction is finished, and drying for 5-10 min at the temperature of 80-100 ℃ to obtain modified silica;
(3) and mixing polyurethane and acrylic resin, sequentially adding the modified tetragonal lanthanum oxide, the modified silicon dioxide and the solution A into the mixture of the polyurethane and the acrylic resin, grinding for 2-6 h, and performing ultrasonic dispersion for 20-30 min to obtain the solar photovoltaic glass super-hydrophobic self-cleaning material.
8. The preparation method of the solar photovoltaic glass superhydrophobic self-cleaning material according to claim 7, wherein in the step (3), after the ultrasonic dispersion is completed, polysiloxane is added into a mixture of the modified tetragonal lanthanum oxide, the modified silicon dioxide, the solution A, the polyurethane and the acrylic resin, the mixture is stirred at a rotation speed of 500-800 r/min for 1-2 h, and after the stirring is completed, the mixture is subjected to ultrasonic dispersion for 20-30 min, so that the solar photovoltaic glass superhydrophobic self-cleaning material is obtained.
9. The preparation method of the solar photovoltaic glass superhydrophobic self-cleaning material according to claim 7, wherein in the step (3), after the ultrasonic dispersion is completed, adding graphene and a silane coupling agent into a mixture of the modified tetragonal lanthanum oxide, the modified silicon dioxide, the solution A, polyurethane and acrylic resin, stirring at a rotation speed of 500-800 r/min for 1-2 h, and after the stirring is completed, performing ultrasonic dispersion for 20-30 min to obtain the solar photovoltaic glass superhydrophobic self-cleaning material.
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