CN106928759A - A kind of automatically cleaning antireflection coatings and preparation method thereof - Google Patents
A kind of automatically cleaning antireflection coatings and preparation method thereof Download PDFInfo
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- CN106928759A CN106928759A CN201710195064.5A CN201710195064A CN106928759A CN 106928759 A CN106928759 A CN 106928759A CN 201710195064 A CN201710195064 A CN 201710195064A CN 106928759 A CN106928759 A CN 106928759A
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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
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- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
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- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
- B05D3/0406—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases the gas being air
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/22—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to internal surfaces, e.g. of tubes
- B05D7/222—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to internal surfaces, e.g. of tubes of pipes
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/22—Surface treatment of glass, not in the form of fibres or filaments, by coating with other inorganic material
- C03C17/23—Oxides
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- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
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- C03C2217/00—Coatings on glass
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- C03C2217/213—SiO2
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Abstract
The invention discloses a kind of automatically cleaning antireflection coatings and preparation method thereof.150 ° of the contact angle ＞ of the automatically cleaning antireflection coatings, 10 ° of roll angle ＜, not only there is reflection preventing ability high, also there is super-hydrophobic, oleophobic, the self-cleaning performance of dirt is dredged, solar energy heat collection pipe and speculum and photovoltaic battery panel can be made has self-cleaning performance, on the basis of the system effectiveness of solar energy optical-thermal heat collector and photovoltaic battery panel is greatly improved, its environmental suitability, weatherability and its service life can be greatly improved；Operation and the maintenance cost in power station can also be greatly reduced simultaneously, the preparation method of the automatically cleaning antireflection coatings is simple, to shapes of substrates low, the low cost of requirement, nontoxic pollution-free；The automatically cleaning antireflection coatings possess excellent resistance to elevated temperatures, are resistant to more than 400 DEG C of high temperature, and also with acid-alkali-corrosive-resisting, cold-resistant thermal shock, ultraviolet light resistant performance, its hardness and anti-wear performance are higher.
Description
Technical field
The present invention relates to Application of Solar Energy field, more particularly to a kind of automatically cleaning antireflection coatings and preparation method thereof.
Background technology
The increasingly exhaustion of traditional energy, forces the mankind constantly to seek new fungible energy source, environmental disruption especially in recent years
And air pollution, causing being particularly important for new energy especially clean energy resource, serious hope of the mankind to new energy is also increasingly urgent.
Solar energy is that current the most cleaning, safest of mankind's discovery is also inexhaustible new energy.Solar energy
The existing century-old history of heat application, but high temperature application, are the things of nearly 30 years, and the country starts late, and lag behind American-European prosperity
Country about 20 years.
Transmissivity, is one of major optical performance of solar energy heat collection pipe, is also the main of solar thermal collector speculum
One of optical property, antireflection coatings can improve the transmissivity of thermal-collecting tube and mirror glass, so as to improve the light of heat collector
Learn efficiency.Under normal circumstances, photo-thermal heat collector and photovoltaic module be typically employed in the environment such as solar irradiation strong, desert, rainy compared with
Severe area, but the antireflection coatings hydrophily that conventional photo-thermal heat collector and photovoltaic module are used is stronger, water resistant, oil, ash
The ability that dirt corrodes is poor, causes glass surface to be easy to be contaminated, so as to reduce system effectiveness, while also substantially increasing
The cost of operation maintenance.
The content of the invention
It is an object of the invention to provide a kind of strong reflection preventing ability, automatically cleaning antireflective that is super-hydrophobic, superoleophobic, dredging dirt
Coating.
It is yet a further object of the present invention to provide the preparation method of automatically cleaning antireflection coatings.
Above-mentioned purpose of the invention is achieved through the following technical solutions：
A kind of automatically cleaning antireflection coatings, its composition is formed by various forerunner's precursor reactants, and the presoma includes reagent a, reagent a
It is at least one in positive esters of silicon acis, dimethyl silicone polymer.
Preferably, the presoma also includes that reagent b, reagent b are at least one in methyl alcohol, ethanol, acetone.
A kind of preparation method of automatically cleaning antireflection coatings, preparation process is as follows：
（1）By precursor reagents a according to claim 2 and reagent b, 10 ~ 30h is stirred under the conditions of pH=0.4 ~ 3.5,
Then still aging 5 ~ 7 days, form sol c；
（2）By precursor reagents a and reagent b, 10 ~ 30h is stirred under the conditions of pH=0.4 ~ 3.5, another still aging 1 ~ 30 day, shape
Into colloidal sol d；
（3）By sol c and colloidal sol d with（0.1~3）：（5~9）Ratio mixes, and forms colloidal sol e；
（4）Then use czochralski method by colloidal sol e immersion plating on the glass tube inside and outside wall of solar energy heat collection pipe, during immersion plating, solar energy
The decrease speed of the glass tube of thermal-collecting tube be 0.3 ~ 3mm/s, stand 3 ~ 10min, start after standing lifting, pull rate be 0.3 ~
2mm/s；
（5）After the completion of immersion plating, 30min is stood in atmosphere, dried 1 ~ 3 hour under the conditions of 300 DEG C ~ 550 DEG C after forming gel,
Obtain the automatically cleaning antireflection coatings on the glass tube inside and outside wall of solar energy heat collection pipe.
A kind of preparation method of automatically cleaning antireflection coatings, preparation process is as follows：
（1）By precursor reagents a according to claim 2 and reagent b, 10 ~ 30h is stirred under the conditions of pH=0.4 ~ 3.5,
Then still aging 5 ~ 7 days, form sol c；
（2）By precursor reagents a and reagent b, 10 ~ 30h is stirred under the conditions of pH=0.4 ~ 3.5, another still aging 1 ~ 30 day, shape
Into colloidal sol d；
（3）By sol c and colloidal sol d with（0.1~3）：（5~9）Ratio mixes, and forms colloidal sol e；
（4）Colloidal sol e is then plated in speculum and the photovoltaic cell surface of solar thermal collector, spin speed using spin-coating method
It is 0.1 ~ 12r/min；
（5）After the completion of plated, 30min is stood in atmosphere, dried 1 ~ 3 hour under the conditions of 300 DEG C ~ 550 DEG C after forming gel,
Obtain the automatically cleaning antireflection coatings on solar energy heat collection pipe speculum and photovoltaic cell surface.
A kind of preparation method of automatically cleaning antireflection coatings, preparation process is as follows：
（1）By precursor reagents a according to claim 2 and reagent b, 10 ~ 30h is stirred under the conditions of pH=0.4 ~ 3.5,
Then still aging 5 ~ 7 days, form sol c；
（2）By precursor reagents a and reagent b, 10 ~ 30h is stirred under the conditions of pH=0.4 ~ 3.5, another still aging 1 ~ 30 day, shape
Into colloidal sol d；
（3）By sol c and colloidal sol d with（0.1~3）：（5~9）Ratio mixes, and forms colloidal sol e；
（4）Colloidal sol e is then plated in speculum and the photovoltaic cell surface of solar energy heat collection pipe using spraying process, spray gun goes out
Mouth pressure is 0.1 ~ 2MPa, and spraying muzzle is 10 ~ 500mm with the spacing on solar energy heat collection pipe speculum and photovoltaic cell surface,
Spraying muzzle translational speed is 10 ~ 200mm/s；
（5）After the completion of plated, 30min is stood in atmosphere, dried 1 ~ 3 hour under the conditions of 300 DEG C ~ 550 DEG C after forming gel,
Obtain the automatically cleaning antireflection coatings on solar energy heat collection pipe speculum and photovoltaic cell surface.
Beneficial effects of the present invention：The microstructure of automatically cleaning antireflection coatings is to grow nanometer in micron dimension cluster
Particle, 150 ° of the contact angle ＞ of the automatically cleaning antireflection coatings, 10 ° of roll angle ＜, not only with reflection preventing ability high, also has
There is super-hydrophobic, oleophobic, dredge the self-cleaning performance of dirt, solar energy heat collection pipe and speculum and photovoltaic battery panel can be made to have from clearly
Clean performance, on the basis of the system effectiveness of solar energy optical-thermal heat collector and photovoltaic battery panel is greatly improved, can greatly improve it
Environmental suitability, weatherability and its service life；Operation and the maintenance cost in power station, the automatically cleaning can also be greatly reduced simultaneously
The preparation method of antireflection coatings is simple, to shapes of substrates low, the low cost of requirement, nontoxic pollution-free；The automatically cleaning antireflective is applied
Layer possesses excellent resistance to elevated temperatures, is resistant to more than 400 DEG C of high temperature, also with acid-alkali-corrosive-resisting, cold-resistant thermal shock, resistance to ultraviolet
Radiance, its hardness and anti-wear performance are higher；The automatically cleaning antireflection coatings can be used for high temperature groove type solar thermal-arrest
Thermal-collecting tube in thermal-collecting tube and speculum, linear Fresnel formula heat collector and speculum, tower type solar heat collector in device
Thermal-collecting tube and cover plate and surface of photovoltaic cell panel in speculum, normal temperature solar thermal collector.
Brief description of the drawings
Accompanying drawing 1 is the microstructure schematic diagram of automatically cleaning antireflection coatings of the invention；
Accompanying drawing 2 is the preparation method route schematic diagram of automatically cleaning antireflection coatings of the invention；
Specific embodiment
To describe technology contents of the invention in detail, realizing target effect, it is explained in detail below in conjunction with implementation method.
1- accompanying drawings 2, of the invention to provide a kind of automatically cleaning antireflection coatings referring to the drawings, and the automatically cleaning antireflection coatings are adopted
It is presoma with reagent a, reagent b, 10 ~ 30h is stirred under the conditions of PH=0.4 ~ 3.5, then still aging 5 ~ 7 days, forms colloidal sol
c；It is another still aging 1 ~ 30 day, form colloidal sol d；By sol c and colloidal sol d with（0.1~3）：（5~9）Ratio mixes, and forms colloidal sol e；
Then, using czochralski method by colloidal sol e immersion plating on the glass tube inside and outside wall of solar energy heat collection pipe, during immersion plating, reduction of speed under plating piece
It is 0.3 ~ 3.0mm/s to spend, and stands 3 ~ 10min, and plating piece is lifted upwards, and pull rate is 0.3 ~ 2.0mm/s；Using spin-coating method
Or spraying process is plated in the speculum and surface of photovoltaic cell panel of solar thermal collector, spin speed is 0.1 ~ 12r/min, spraying
Rifle outlet pressure is 0.1 ~ 2MPa, and muzzle is 10 ~ 500mm with substrate spacing, and muzzle translational speed is 10 ~ 200mm/s；Plated film is complete
Cheng Hou, stands 30min and forms gel in atmosphere, and 1 ~ 3h is then dried under the conditions of 300 DEG C ~ 550 DEG C, obtains described from clear
Clean antireflection coatings.
In the present invention, the reagent a is positive esters of silicon acis：Methyl silicate, tetraethyl orthosilicate, positive silicic acid propyl ester etc., poly- two
At least one in methylsiloxane, the molecular weight of reagent a is 88 ~ 20000.
In the present invention, the reagent b is at least one in methyl alcohol, ethanol, acetone.
Embodiment 1
The present embodiment provides a kind of automatically cleaning antireflection coatings, and the automatically cleaning antireflection coatings use tetraethyl orthosilicate and ethanol
It is presoma, is stirred 10 hours under the conditions of pH=0.4, then still aging 7 days, forms sol c；It is another still aging 30 days, shape
Into colloidal sol d；By sol c and colloidal sol d with 1:5 ratios mix, and form colloidal sol e；Then, using czochralski method by colloidal sol e immersion plating too
On the scale tube inside and outside wall of positive energy thermal-collecting tube, progress is that plating piece decrease speed is 0.5mm/s, stands 5min, and pull rate is
0.3mm/s；After the completion of immersion plating, 30min is stood in atmosphere and forms gel, then dry 1h under the conditions of 400 DEG C, obtain described
Automatically cleaning antireflection coatings；Finally, colloidal sol e is plated in the speculum and photovoltaic cell of solar energy heat collection pipe using spin-coating method
Plate surface, spin speed is 0.1r/min, after the completion of being plated, 30min is stood in atmosphere and forms gel, then in 400 DEG C of bars
1h is dried under part, described automatically cleaning antireflection coatings are obtained.
Embodiment 2
The present embodiment provides a kind of automatically cleaning antireflection coatings, the automatically cleaning antireflection coatings using dimethyl silicone polymer and
Methyl alcohol is presoma, and 15h is stirred under the conditions of pH=2, then still aging 5 days, forms sol c；It is another still aging 1 day, formed
Colloidal sol d；By sol c and colloidal sol d with 0.7:8 ratios mix, and form colloidal sol e；Then, using czochralski method by colloidal sol e immersion plating too
On the glass tube inside and outside wall of positive energy thermal-collecting tube, during immersion plating, plating piece decrease speed is 0.3mm/s, stands 10min, pull rate
It is 1.5mm/s；After the completion of immersion plating, 30min is stood in atmosphere and forms gel, then dry 2h under the conditions of 500 DEG C, obtain institute
The automatically cleaning antireflection coatings stated；Finally, colloidal sol e is plated in the speculum and photovoltaic of solar energy energy thermal-collecting tube using spin-coating method
Battery plate surface, spin speed is 2r/min, after the completion of being plated, 30min is stood in atmosphere and forms gel, then at 500 DEG C
Under the conditions of dry 2h, obtain described automatically cleaning antireflection coatings.
Embodiment 3
The present embodiment provides a kind of automatically cleaning antireflection coatings, and the automatically cleaning antireflection coatings use tetraethyl orthosilicate and ethanol
It is presoma, 20h is stirred under the conditions of pH=0.9, then still aging 6 days, forms sol c；Separately use dimethyl silicone polymer
It is presoma with ethanol, 15h is stirred under the conditions of pH=0.9, then still aging 5 days, forms colloidal sol d；By sol c and colloidal sol d
With 0.1:6 ratios mix, and form colloidal sol e；Then, using czochralski method by colloidal sol e immersion plating in the glass tube of solar energy heat collection pipe
On outer wall, during immersion plating, plating piece decrease speed is 1mm/s, stands 3min, and pull rate is 2mm/s；After the completion of immersion plating, in sky
30min is stood in gas and forms gel, then dry 3h under the conditions of 550 DEG C, obtain described automatically cleaning antireflection coatings；Most
Afterwards, colloidal sol e is plated in the speculum and surface of photovoltaic cell panel of solar energy heat collection pipe using spin-coating method, spin speed is 5r/
Min, after the completion of being plated, stands 30min and forms gel in atmosphere, then dries 3h under the conditions of 550 DEG C, obtain it is described from
Cleaning antireflection coatings.
Embodiment 4
The present embodiment provides a kind of automatically cleaning antireflection coatings, and the automatically cleaning antireflection coatings use tetraethyl orthosilicate and methyl alcohol
It is presoma, 20h is stirred under the conditions of pH=3, then still aging 7 days, forms sol c；It is another using dimethyl silicone polymer and
Methyl alcohol is presoma, and 30h is stirred under the conditions of pH=3, then still aging 10 days, forms colloidal sol d；By sol c and colloidal sol d with
2:9 ratios mix, and form colloidal sol e；Then, using czochralski method by colloidal sol e immersion plating solar energy heat collection pipe glass tube inside and outside wall
On, during immersion plating, plating piece decrease speed is 2mm/s, stands 8min, and pull rate is 1.8mm/s；After the completion of immersion plating, in air
Middle standing 30min forms gel, then dries 2h under the conditions of 300 DEG C, obtains described automatically cleaning antireflection coatings；Finally,
Colloidal sol e is plated in speculum and the photovoltaic cell surface of solar energy heat collection pipe using spin-coating method, spin speed is 7r/min, quilt
After the completion of plating, 30min is stood in atmosphere and forms gel, then dry 2h under the conditions of 300 DEG C, obtain described automatically cleaning and subtract
Reflectance coating.
Embodiment 5
The present embodiment provides a kind of automatically cleaning antireflection coatings, and the automatically cleaning antireflection coatings use tetraethyl orthosilicate and ethanol
It is presoma, 30h is stirred under the conditions of pH=3.5, then still aging 5 days, forms sol c；Separately use dimethyl silicone polymer
It is presoma with methyl alcohol, 10h is stirred under the conditions of pH=3.5, then still aging 15 days, forms colloidal sol d；By sol c and colloidal sol
D is with 3:7 ratios are mixed to form colloidal sol e；Then, using czochralski method by colloidal sol e immersion plating inside and outside the glass tube of solar energy heat collection pipe
On wall, during immersion plating, plating piece decrease speed is 1.5mm/s, stands 9min, and pull rate is 1mm/s；After the completion of immersion plating, in sky
30min is stood in gas and forms gel, then dry 3h under the conditions of 450 DEG C, obtain described automatically cleaning antireflection coatings；Most
Afterwards, colloidal sol e is plated in speculum and the photovoltaic cell surface of solar energy heat collection pipe using spin-coating method, spin speed is 9r/
Min, after the completion of being plated, stands 30min and forms gel in atmosphere, then dries 3h under the conditions of 450 DEG C, obtain it is described from
Cleaning antireflection coatings.
Embodiment 6
The present embodiment provides a kind of automatically cleaning antireflection coatings, and the automatically cleaning antireflection coatings use tetraethyl orthosilicate and methyl alcohol
It is presoma, 12h is stirred under the conditions of pH=1.5, then still aging 6 days, forms sol c；Separately use dimethyl silicone polymer
It is presoma with ethanol, 18h is stirred under the conditions of pH=2.5, then still aging 20 days, forms colloidal sol d；By sol c and colloidal sol
D is with 2.5:8 ratio mixing, forms colloidal sol e；Then, using czochralski method by colloidal sol e immersion plating solar energy heat collection pipe glass tube
On inside and outside wall, during immersion plating, plating piece decrease speed is 1.8mm/s, stands 6min, and pull rate is 0.8mm/s；Immersion plating is completed
Afterwards, 30min is stood in atmosphere and form gel, then dry 1h under the conditions of 350 DEG C, obtain described automatically cleaning antireflective and apply
Layer；Finally, colloidal sol e is plated in speculum and the photovoltaic cell surface of solar energy heat collection pipe using spin-coating method, spin speed is
12r/min, after the completion of being plated, stands 30min and forms gel in atmosphere, then dries 1h under the conditions of 350 DEG C, obtains described
Automatically cleaning antireflection coatings.
Embodiment 7
The present embodiment provides a kind of automatically cleaning antireflection coatings, and the automatically cleaning antireflection coatings use tetraethyl orthosilicate and acetone
It is presoma, is stirred 10 hours under the conditions of pH=0.4, then still aging 7 days, forms sol c；It is another still aging 30 days, shape
Into colloidal sol d；By sol c and colloidal sol d with 1:5 ratios mix, and form colloidal sol e；Then, using czochralski method by colloidal sol e immersion plating too
On the scale tube inside and outside wall of positive energy thermal-collecting tube, progress is that plating piece decrease speed is 0.5mm/s, stands 5min, and pull rate is
0.3mm/s；After the completion of immersion plating, 30min is stood in atmosphere and forms gel, then dry 1h under the conditions of 400 DEG C, obtain described
Automatically cleaning antireflection coatings；Finally, colloidal sol e is plated in the speculum and photovoltaic cell of solar energy heat collection pipe using spraying process
Plate surface, spray gun outlet pressure is 0.1MPa, and spray gun is 10mm, spray gun with the spacing on speculum and photovoltaic cell surface
Translational speed is 10mm/s, after the completion of being plated, 30min is stood in atmosphere and forms gel, is then dried under the conditions of 400 DEG C
1h, obtains described automatically cleaning antireflection coatings.
Embodiment 8
The present embodiment provides a kind of automatically cleaning antireflection coatings, the automatically cleaning antireflection coatings using dimethyl silicone polymer and
Acetone is presoma, and 15h is stirred under the conditions of pH=2, then still aging 5 days, forms sol c；It is another still aging 1 day, formed
Colloidal sol d；By sol c and colloidal sol d with 0.7:8 ratios mix, and form colloidal sol e；Then, using czochralski method by colloidal sol e immersion plating too
On the glass tube inside and outside wall of positive energy thermal-collecting tube, during immersion plating, plating piece decrease speed is 0.3mm/s, stands 10min, pull rate
It is 1.5mm/s；After the completion of immersion plating, 30min is stood in atmosphere and forms gel, then dry 2h under the conditions of 500 DEG C, obtain institute
The automatically cleaning antireflection coatings stated；Finally, colloidal sol e is plated in the speculum and photovoltaic of solar energy energy thermal-collecting tube using spraying process
Battery plate surface, spray gun outlet pressure is 0.4MPa, and spray gun is 410mm with the spacing on speculum and photovoltaic cell surface,
Spray gun translational speed is 70mm/s, after the completion of being plated, 30min is stood in atmosphere and forms gel, then under the conditions of 500 DEG C
Drying 2h, obtains described automatically cleaning antireflection coatings.
Embodiment 9
The present embodiment provides a kind of automatically cleaning antireflection coatings, and the automatically cleaning antireflection coatings use tetraethyl orthosilicate and ethanol
It is presoma, 20h is stirred under the conditions of pH=0.9, then still aging 6 days, forms sol c；Separately use dimethyl silicone polymer
It is presoma with acetone, 15h is stirred under the conditions of pH=0.9, then still aging 5 days, forms colloidal sol d；By sol c and colloidal sol d
With 0.1:6 ratios mix, and form colloidal sol e；Then, using czochralski method by colloidal sol e immersion plating in the glass tube of solar energy heat collection pipe
On outer wall, during immersion plating, plating piece decrease speed is 1mm/s, stands 3min, and pull rate is 2mm/s；After the completion of immersion plating, in sky
30min is stood in gas and forms gel, then dry 3h under the conditions of 550 DEG C, obtain described automatically cleaning antireflection coatings；Most
Afterwards, colloidal sol e is plated in the speculum and surface of photovoltaic cell panel of solar energy heat collection pipe, spray gun outlet pressure using spraying process
It is 0.9MPa, spray gun is 130mm with speculum and surface of photovoltaic cell panel spacing, and spraying muzzle translational speed is 110mm/s,
After the completion of plated, 30min stood in atmosphere and forms gel, then dry 3h under the conditions of 550 DEG C, obtain described automatically cleaning
Antireflection coatings.
Embodiment 10
The present embodiment provides a kind of automatically cleaning antireflection coatings, and the automatically cleaning antireflection coatings use tetraethyl orthosilicate and methyl alcohol
It is presoma, 20h is stirred under the conditions of pH=3, then still aging 7 days, forms sol c；It is another using dimethyl silicone polymer and
Acetone is presoma, and 30h is stirred under the conditions of pH=3, then still aging 10 days, forms colloidal sol d；By sol c and colloidal sol d with
2:9 ratios mix, and form colloidal sol e；Then, using czochralski method by colloidal sol e immersion plating solar energy heat collection pipe glass tube inside and outside wall
On, during immersion plating, plating piece decrease speed is 2mm/s, stands 8min, and pull rate is 1.8mm/s；After the completion of immersion plating, in air
Middle standing 30min forms gel, then dries 2h under the conditions of 300 DEG C, obtains described automatically cleaning antireflection coatings；Finally,
Colloidal sol e is plated in speculum and the photovoltaic cell surface of solar energy heat collection pipe using spraying process, spray gun outlet pressure is
1.1MPa, spraying muzzle is 270mm with the spacing on speculum and photovoltaic cell surface, and spraying muzzle translational speed is 150mm/s,
After the completion of plated, 30min stood in atmosphere and forms gel, then dry 2h under the conditions of 300 DEG C, obtain described automatically cleaning
Antireflection coatings.
Embodiment 11
The present embodiment provides a kind of automatically cleaning antireflection coatings, and the automatically cleaning antireflection coatings use tetraethyl orthosilicate and acetone
It is presoma, 30h is stirred under the conditions of pH=3.5, then still aging 5 days, forms sol c；Separately use dimethyl silicone polymer
It is presoma with methyl alcohol, 10h is stirred under the conditions of pH=3.5, then still aging 15 days, forms colloidal sol d；By sol c and colloidal sol
D is with 3:7 ratios are mixed to form colloidal sol e；Then, using czochralski method by colloidal sol e immersion plating inside and outside the glass tube of solar energy heat collection pipe
On wall, during immersion plating, plating piece decrease speed is 1.5mm/s, stands 9min, and pull rate is 1mm/s；After the completion of immersion plating, in sky
30min is stood in gas and forms gel, then dry 3h under the conditions of 450 DEG C, obtain described automatically cleaning antireflection coatings；Most
Afterwards, colloidal sol e is plated in speculum and the photovoltaic cell surface of solar energy heat collection pipe using spraying process, spray gun outlet pressure is
1.8MPa, spraying muzzle is 320mm with the spacing on speculum and photovoltaic cell surface, and spraying muzzle translational speed is 170mm/s,
After the completion of plated, 30min stood in atmosphere and forms gel, then dry 3h under the conditions of 450 DEG C, obtain described automatically cleaning
Antireflection coatings.
Embodiment 12
The present embodiment provides a kind of automatically cleaning antireflection coatings, and the automatically cleaning antireflection coatings use tetraethyl orthosilicate and methyl alcohol
It is presoma, 12h is stirred under the conditions of pH=1.5, then still aging 6 days, forms sol c；Separately use dimethyl silicone polymer
It is presoma with acetone, 18h is stirred under the conditions of pH=2.5, then still aging 20 days, forms colloidal sol d；By sol c and colloidal sol
D is with 2.5:8 ratio mixing, forms colloidal sol e；Then, using czochralski method by colloidal sol e immersion plating solar energy heat collection pipe glass tube
On inside and outside wall, during immersion plating, plating piece decrease speed is 1.8mm/s, stands 6min, and pull rate is 0.8mm/s；Immersion plating is completed
Afterwards, 30min is stood in atmosphere and form gel, then dry 1h under the conditions of 350 DEG C, obtain described automatically cleaning antireflective and apply
Layer；Finally, colloidal sol e is plated in speculum and the photovoltaic cell surface of solar thermal collector, spray gun outlet using spraying process
Pressure is 2MPa, and spraying muzzle is 500mm with substrate spacing, and spraying muzzle translational speed is 200mm/s, after the completion of being plated,
30min is stood in air and forms gel, then dry 1h under the conditions of 350 DEG C, obtain described automatically cleaning antireflection coatings.
The microstructure of automatically cleaning antireflection coatings of the invention is to grow nano particle in micron dimension cluster, should be certainly
Clean antireflection coatings 150 ° of contact angle ＞, 10 ° of roll angle ＜, not only with reflection preventing ability high, also with it is super-hydrophobic,
Oleophobic, the self-cleaning performance for dredging dirt, can make solar energy heat collection pipe and speculum and photovoltaic battery panel have self-cleaning performance,
Greatly improve on the basis of the system effectiveness of solar energy optical-thermal heat collector and photovoltaic battery panel, the adaptation of its environment can be greatly improved
Property, weatherability and its service life；Operation and the maintenance cost in power station can also be greatly reduced simultaneously, the automatically cleaning antireflective is applied
The preparation method of layer is simple, to shapes of substrates low, the low cost of requirement, nontoxic pollution-free；The automatically cleaning antireflection coatings possess excellent
Different resistance to elevated temperatures, is resistant to more than 400 DEG C of high temperature, also with acid-alkali-corrosive-resisting, cold-resistant thermal shock, ultraviolet light resistant
Can, its hardness and anti-wear performance are higher；The automatically cleaning antireflection coatings can be used in high temperature trough type solar heat-collector
Thermal-collecting tube and speculum, the speculum of tower type solar heat collector in thermal-collecting tube and speculum, linear Fresnel formula heat collector,
Thermal-collecting tube and cover plate and surface of photovoltaic cell panel in normal temperature solar thermal collector.
Embodiments of the invention are the foregoing is only, the scope of the claims of the invention is not thereby limited, it is every to utilize this hair
The equivalent transformation that bright specification and accompanying drawing content are made, or other related technical fields are directly or indirectly used in, similarly
It is included within the scope of the present invention.
Claims (5)
1. a kind of automatically cleaning antireflection coatings, its composition is formed by various forerunner's precursor reactants, it is characterised in that the presoma bag
Reagent a is included, reagent a is at least one in positive esters of silicon acis, dimethyl silicone polymer.
2. automatically cleaning antireflection coatings according to claim 1, it is characterised in that the presoma also includes reagent b, examination
Agent b is at least one in methyl alcohol, ethanol, acetone.
3. a kind of preparation method of automatically cleaning antireflection coatings, it is characterised in that preparation process is as follows：
(1) by precursor reagents a according to claim 2 and reagent b, 10 ~ 30h is stirred under the conditions of pH=0.4 ~ 3.5,
Then still aging 5 ~ 7 days, form sol c；
(2) by precursor reagents a and reagent b, 10 ~ 30h is stirred under the conditions of pH=0.4 ~ 3.5, another still aging 1 ~ 30 day, shape
Into colloidal sol d；
(3) by sol c and colloidal sol d with（0.1~3）：（5~9）Ratio mixes, and forms colloidal sol e；
(4) then use czochralski method by colloidal sol e immersion plating on the glass tube inside and outside wall of solar energy heat collection pipe, during immersion plating, solar energy
The decrease speed of the glass tube of thermal-collecting tube be 0.3 ~ 3mm/s, stand 3 ~ 10min, start after standing lifting, pull rate be 0.3 ~
2mm/s；
(5) after the completion of immersion plating, 30min is stood in atmosphere, dried 1 ~ 3 hour under the conditions of 300 DEG C ~ 550 DEG C after forming gel,
Obtain the automatically cleaning antireflection coatings on the glass tube inside and outside wall of solar energy heat collection pipe.
4. a kind of preparation method of automatically cleaning antireflection coatings, it is characterised in that preparation process is as follows：
(1) by precursor reagents a according to claim 2 and reagent b, 10 ~ 30h is stirred under the conditions of pH=0.4 ~ 3.5,
Then still aging 5 ~ 7 days, form sol c；
(2) by precursor reagents a and reagent b, 10 ~ 30h is stirred under the conditions of pH=0.4 ~ 3.5, another still aging 1 ~ 30 day, shape
Into colloidal sol d；
(3) by sol c and colloidal sol d with（0.1~3）：（5~9）Ratio mixes, and forms colloidal sol e；
(4) colloidal sol e is then plated in speculum and the photovoltaic cell surface of solar thermal collector, spin speed using spin-coating method
It is 0.1 ~ 12r/min；
(5) after the completion of being plated, 30min is stood in atmosphere, dried 1 ~ 3 hour under the conditions of 300 DEG C ~ 550 DEG C after forming gel,
Obtain the automatically cleaning antireflection coatings on solar thermal collector speculum and photovoltaic cell surface.
5. a kind of preparation method of automatically cleaning antireflection coatings, it is characterised in that preparation process is as follows：
（1）By precursor reagents a according to claim 2 and reagent b, 10 ~ 30h is stirred under the conditions of pH=0.4 ~ 3.5,
Then still aging 5 ~ 7 days, form sol c；
(2) by precursor reagents a and reagent b, 10 ~ 30h is stirred under the conditions of pH=0.4 ~ 3.5, another still aging 1 ~ 30 day, shape
Into colloidal sol d；
(3) by sol c and colloidal sol d with（0.1~3）：（5~9）Ratio mixes, and forms colloidal sol e；
(4) colloidal sol e is then plated in speculum and the photovoltaic cell surface of solar thermal collector using spraying process, spray gun goes out
Mouth pressure is 0.1 ~ 2MPa, and spraying muzzle is 10 ~ 500mm with the spacing on solar thermal collector speculum and photovoltaic cell surface,
Spraying muzzle translational speed is 10 ~ 200mm/s；
(5) after the completion of being plated, 30min is stood in atmosphere, dried 1 ~ 3 hour under the conditions of 300 DEG C ~ 550 DEG C after forming gel,
Obtain the automatically cleaning antireflection coatings on solar thermal collector speculum and photovoltaic cell surface.
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Application publication date: 20170707 |