CN106121141B - A kind of glasshouse skylight - Google Patents
A kind of glasshouse skylight Download PDFInfo
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- CN106121141B CN106121141B CN201610709532.1A CN201610709532A CN106121141B CN 106121141 B CN106121141 B CN 106121141B CN 201610709532 A CN201610709532 A CN 201610709532A CN 106121141 B CN106121141 B CN 106121141B
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- 230000000694 effects Effects 0.000 claims abstract description 35
- 239000002245 particle Substances 0.000 claims description 136
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 130
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 100
- 229910052681 coesite Inorganic materials 0.000 claims description 99
- 229910052906 cristobalite Inorganic materials 0.000 claims description 99
- 239000000377 silicon dioxide Substances 0.000 claims description 99
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 99
- 229910052682 stishovite Inorganic materials 0.000 claims description 99
- 229910052905 tridymite Inorganic materials 0.000 claims description 99
- 239000011521 glass Substances 0.000 claims description 95
- 239000000758 substrate Substances 0.000 claims description 93
- 239000002105 nanoparticle Substances 0.000 claims description 69
- 239000011248 coating agent Substances 0.000 claims description 63
- 238000000576 coating method Methods 0.000 claims description 63
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 49
- GFLJTEHFZZNCTR-UHFFFAOYSA-N 3-prop-2-enoyloxypropyl prop-2-enoate Chemical compound C=CC(=O)OCCCOC(=O)C=C GFLJTEHFZZNCTR-UHFFFAOYSA-N 0.000 claims description 48
- 229920000371 poly(diallyldimethylammonium chloride) polymer Polymers 0.000 claims description 48
- 239000000725 suspension Substances 0.000 claims description 42
- 238000005406 washing Methods 0.000 claims description 30
- 229920001467 poly(styrenesulfonates) Polymers 0.000 claims description 26
- 238000010521 absorption reaction Methods 0.000 claims description 24
- 238000003756 stirring Methods 0.000 claims description 19
- 238000013019 agitation Methods 0.000 claims description 18
- 238000004140 cleaning Methods 0.000 claims description 17
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims description 17
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 17
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 150000001875 compounds Chemical class 0.000 claims description 12
- 238000004821 distillation Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 11
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims description 11
- 238000001179 sorption measurement Methods 0.000 claims description 11
- -1 polyethylene pyrrolidones Polymers 0.000 claims description 7
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical class CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims description 6
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 6
- 239000007864 aqueous solution Substances 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 6
- 239000008367 deionised water Substances 0.000 claims description 6
- 229910021641 deionized water Inorganic materials 0.000 claims description 6
- 235000019441 ethanol Nutrition 0.000 claims description 6
- 125000005909 ethyl alcohol group Chemical group 0.000 claims description 6
- 238000007654 immersion Methods 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 239000000243 solution Substances 0.000 claims description 6
- 239000003643 water by type Substances 0.000 claims description 6
- 240000007594 Oryza sativa Species 0.000 claims 1
- 235000007164 Oryza sativa Nutrition 0.000 claims 1
- 239000011258 core-shell material Substances 0.000 claims 1
- 239000003595 mist Substances 0.000 claims 1
- 235000009566 rice Nutrition 0.000 claims 1
- 239000007789 gas Substances 0.000 description 11
- 230000008021 deposition Effects 0.000 description 10
- 229920000867 polyelectrolyte Polymers 0.000 description 10
- 238000002834 transmittance Methods 0.000 description 10
- 230000010148 water-pollination Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 230000004048 modification Effects 0.000 description 8
- 238000012986 modification Methods 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 6
- 230000007423 decrease Effects 0.000 description 6
- 150000001336 alkenes Chemical class 0.000 description 5
- 238000001354 calcination Methods 0.000 description 5
- 239000000084 colloidal system Substances 0.000 description 5
- 238000000354 decomposition reaction Methods 0.000 description 5
- 238000003837 high-temperature calcination Methods 0.000 description 5
- HNJBEVLQSNELDL-UHFFFAOYSA-N pyrrolidin-2-one Chemical compound O=C1CCCN1 HNJBEVLQSNELDL-UHFFFAOYSA-N 0.000 description 5
- 239000012780 transparent material Substances 0.000 description 4
- 239000000779 smoke Substances 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000012010 growth Effects 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002352 surface water Substances 0.000 description 2
- 241001274961 Rubus repens Species 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 230000003698 anagen phase Effects 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/03—Sky-lights; Domes; Ventilating sky-lights
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Surface Treatment Of Glass (AREA)
Abstract
The application is related to a kind of glasshouse skylight, located at top of greenhouse, is made up of fixed frame and activity box, and the fixed frame is fixed on top of greenhouse, is connected between the fixed frame and the activity box by hinge.
Description
Technical field
The application is related to glass sunroof field, more particularly to a kind of glasshouse skylight.
Background technology
Greenhouse is a kind of Code in Hazardous Special Locations for being used to cultivate the crops such as plant, and it is according to internal floristics, growth phase
Deng realizing hot-house culture by adjusting the growth conditions such as temperature, humidity.
However, because inside greenhouse is larger compared to the difference such as outside, humidity, temperature, its transparent glass surface easily produces
Fog gas, the transmission of sunlight is influenceed, and then the growth to plant has a negative impact.
The content of the invention
The present invention is intended to provide a kind of glasshouse skylight, to solve problem set forth above.
A kind of glasshouse skylight is provided in embodiments of the invention, located at top of greenhouse, by fixed frame and activity box
Composition, the fixed frame are fixed on top of greenhouse, connected between the fixed frame and the activity box by hinge；The fixation
Frame and activity box are provided with antifog glass substrate, and the antifog glass substrate material is high temp glass.
The technical scheme that embodiments of the invention provide can include the following benefits：
The activity box of the greenhouse skylight of the present invention is equipped with antifog glass substrate, and the antifog glass substrate surface is provided with antifog painting
Layer, its contact angle to water droplet are less than 1 degree, have preferable hydrophilic effect, can prevent glass substrate surface from water smoke etc. occur,
So as to solve problem set forth above.
The aspect and advantage that the application adds will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the application.It should be appreciated that the general description and following detailed description of the above are only
It is exemplary and explanatory, the application can not be limited.
Brief description of the drawings
Using accompanying drawing, the invention will be further described, but the embodiment in accompanying drawing does not form any limit to the present invention
System, for one of ordinary skill in the art, on the premise of not paying creative work, can also be obtained according to the following drawings
Other accompanying drawings.
Fig. 1 is the structural representation of glasshouse skylight of the present invention.
Fig. 2 is the Making programme figure of antifogging coating of the present invention.
Embodiment
Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following description is related to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous key element.Following exemplary embodiment
Described in embodiment do not represent and the consistent all embodiments of the present invention.On the contrary, they be only with it is such as appended
The example of the consistent apparatus and method of some aspects being described in detail in claims, of the invention.
Transparent material has a wide range of applications in industrial and agricultural production and life, still, special due to the influence of surrounding environment
It is not the influence of humidity in environment, transparent material surface easily produces atomization, causes transparency to decline, production and life to people
Work brings inconvenience, or even causes heavy losses.
Anti-fogging measure is mainly started with from the condition for destroying fogging, first, from thermodynamics, installation heater makes base material
Surface temperature is higher than vapor dew point, or installation ultrasonic wave disperses to make small dewdrop caused by vapor volatilize within the extremely short time
For vapor, the measure being usually taken is the method heated with hair dryer or film metal silk, removes transparent material surface
Water smoke；Second, from the performance for changing material surface, change the chemical composition or microstructure of substrate surface, such as in not shadow
In the case of ringing material function itself, one layer of hydrophilic or hydrophobic wear-resistant coating is constructed in material surface, when small water drop contact
During to the coating, due to the hydrophilic or hydrophobic effect of coating, small water droplet can coating surface sprawl into a thin layer of moisture film or
Person tumbles, so as to inhibit the formation of coating surface water smoke.
However, in the prior art, using hair dryer or wire heating, device complexity be present, original paper is more, cost
Height, it is fragile the problems such as, therefore coating be solve transparent material surface fogging main method.
Application scenarios one：
Fig. 1 shows a kind of glasshouse skylight that embodiments herein is related to, located at top of greenhouse, by fixed frame 1
Formed with activity box 2, the fixed frame 1 is fixed on top of greenhouse, passes through hinge between the fixed frame 1 and the activity box 2
Connection, the fixed frame 1 and activity box 2 are provided with antifog glass substrate 3.
Preferably, the antifog glass substrate 3 is high temp glass substrate, and the high temp glass substrate surface is to pass through electrostatic
The antifogging coating of self-assembling method deposition, the high temp glass substrate pass through polyelectrolyte surface modification treatment；The high temp glass
Substrate surface surface after polyelectrolyte is handled carries positive charge, antifogging coating can be deposited on into table by electrostatic attraction
Face.
Preferably, the antifogging coating is CaCO3/SiO2Compound particle, the CaCO3/SiO2Compound particle is nucleocapsid knot
Structure, CaCO3Particle is core, SiO2Nano-particle is adsorbed in the CaCO3Particle surface forms shell structure, the CaCO3Particle
Footpath is 5~10 μm, the SiO2Nano particle diameter is 50~100nm.
Due to CaCO3Decomposition is produced after calcining at high temperature, there is CO2Gas produces, CO2Gas breaks through SiO2Nano-particle
The shell structure of formation so that the shell structure surface forms aperture, is formed by SiO2The hollow ball that nano-particle is formed forms more
Hole coating, and increase the surface area of shell wall, be advantageous to adsorbed water molecule on more hollow ball walls, on the other hand, hollow ball
Duct on wall also can be that hydrone enters to provide passage in goal, be advantageous to sprawling for water droplet, increase figure due to capillary effect
The hydrophily of layer；3rd, hollow ball can also increase light transmittance, avoid because the effect of coating causes the decline of light transmittance.
Preferably, the CaCO3Particle surface coats layer of polyethylene pyrrolidones.
The polyvinylpyrrolidone is water-soluble high-molecular compound, can be in CaCO3Particle is protected as one layer of colloid
Material, avoid CaCO during without high-temperature calcination3Particle decomposes in advance.
Preferably, deposition has the high temp glass substrate of the antifogging coating and the contact angle of water droplet to be less than 1 degree, possesses higher
Hydrophily and self-cleaning property.
Still more preferably, it is as follows by Fig. 2, the making step of the antifogging coating：
Step 1, prepare CaCO3Particle：
Choose CaCO3Particle, it is cleaned by ultrasonic, then takes 3g polyvinylpyrrolidones to be added to 100ml deionized waters
In, by the CaCO after cleaning3Particle is added in deionized water, and ultrasonic 30min, makes CaCO again3Particle surface coats a strata second
Alkene pyrrolidone；
Step 2, prepare SiO2Nano-particle：
By 5ml ammoniacal liquor, 100ml absolute ethyl alcohols are added to stirring at normal temperature 10min in conical flask, and 2min is stirred at 60 DEG C,
Stirring is lower to be added dropwise 3ml tetraethyl orthosilicates, continues to stir 12h at 60 DEG C, and it containing particle diameter is the solid of 50nm to obtain translucent
SiO2The suspension of nano-particle；
Step 3, prepare CaCO3/SiO2Composite nanoparticle：
A) by the CaCO of step steady3Particle ultrasonic disperse forms suspension in water, by isometric concentration be 1~
3mg/ml PDDA is added in the suspension, magnetic agitation, PDDA is assembled in CaCO by Coulomb force absorption3Particle table
Face, centrifuge, supersound washing, the PDDA of physical absorption is removed, then obtained CaCO3Particle is dispersed in water to obtain
Even scattered suspension；
B) suspension obtained above is added in the PSS aqueous solution, magnetic agitation 3h, centrifuges, supersound washing, obtain
To CaCO3Adsorption has polyvinylpyrrolidone, PDDA and PSS spheroidal particle, repeats the above steps so that CaCO3Particle
Adsorption is uniform；
C) by CaCO obtained above3Particle is added to prepared SiO2In the suspension of nano-particle, magnetic agitation 6
~10h, centrifuge, supersound washing removes unadsorbed SiO2Nano-particle, repeat the above steps so that SiO2Nano-particle
In CaCO3Particle surface absorption is uniform, then adsorbs PDDA/SiO twice again2Nano-particle, obtain CaCO3/SiO2Compound grain
Son, and SiO2Nano-particle is three layers；
Step 4, prepare antifogging coating：
A) Substrate treatment, volume ratio is used as 7:3 98%H2SO4And 30%H2O2To high temp glass substrate immersion treatment,
Dried up by treated high temp glass substrate distillation water washing, then with nitrogen；
B) the high temp glass substrate after cleaning is alternately immersed in PDDA and PSS solution, centre distillation water washings
The PDDA and PSS of absorption are managed, until obtaining obtaining 7 layers of PDDA and 6 layer of PSS coverings in high temp glass substrate surface；
C) high temp glass substrate obtained above is immersed in the CaCO that step 3 obtains3/SiO2Compound particle suspension
In, 5h is stood, one layer of CaCO is deposited in high temp glass substrate surface3/SiO2Compound particle coating, then by the high temp glass base
Piece is put into Muffle furnace, sinters 10h at 600~850 DEG C so that CaCO3/SiO2CaCO in compound particle3Pyrolytic, obtain
There are coarse structure and the SiO of pore structure to deposition2The high temp glass substrate of hollow ball coating.
Application scenarios two：
Fig. 1 shows a kind of glasshouse skylight that embodiments herein is related to, located at top of greenhouse, by fixed frame 1
Formed with activity box 2, the fixed frame 1 is fixed on top of greenhouse, passes through hinge between the fixed frame 1 and the activity box 2
Connection, the fixed frame 1 and activity box 2 are provided with antifog glass substrate 3.
Preferably, the antifog glass substrate 3 is high temp glass substrate, and the high temp glass substrate surface is to pass through electrostatic
The antifogging coating of self-assembling method deposition, the high temp glass substrate pass through polyelectrolyte surface modification treatment；The high temp glass
Substrate surface surface after polyelectrolyte is handled carries positive charge, antifogging coating can be deposited on into table by electrostatic attraction
Face.
Preferably, the antifogging coating is CaCO3/SiO2Compound particle, the CaCO3/SiO2Compound particle is nucleocapsid knot
Structure, CaCO3Particle is core, SiO2Nano-particle is adsorbed in the CaCO3Particle surface forms shell structure, the CaCO3Particle
Footpath is 5 μm, the SiO2Nano particle diameter is 50nm.
Due to CaCO3Decomposition is produced after calcining at high temperature, there is CO2Gas produces, CO2Gas breaks through SiO2Nano-particle
The shell structure of formation so that the shell structure surface forms aperture, is formed by SiO2The hollow ball that nano-particle is formed forms more
Hole coating, and increase the surface area of shell wall, be advantageous to adsorbed water molecule on more hollow ball walls, on the other hand, hollow ball
Duct on wall also can be that hydrone enters to provide passage in goal, be advantageous to sprawling for water droplet, increase figure due to capillary effect
The hydrophily of layer；3rd, hollow ball can also increase light transmittance, avoid because the effect of coating causes the decline of light transmittance.
Preferably, the CaCO3Particle surface coats layer of polyethylene pyrrolidones.
The polyvinylpyrrolidone is water-soluble high-molecular compound, can be in CaCO3Particle is protected as one layer of colloid
Material, avoid CaCO during without high-temperature calcination3Particle decomposes in advance.
Preferably, deposition has the high temp glass substrate of the antifogging coating and the contact angle of water droplet to be less than 1 degree, possesses higher
Hydrophily and self-cleaning property.
Still more preferably, it is as follows by Fig. 2, the making step of the antifogging coating：
Step 1, prepare CaCO3Particle：
Choose CaCO3Particle, it is cleaned by ultrasonic, then takes 3g polyvinylpyrrolidones to be added to 100ml deionized waters
In, by the CaCO after cleaning3Particle is added in deionized water, and ultrasonic 30min, makes CaCO again3Particle surface coats a strata second
Alkene pyrrolidone；
Step 2, prepare SiO2Nano-particle：
By 5ml ammoniacal liquor, 100ml absolute ethyl alcohols are added to stirring at normal temperature 10min in conical flask, and 2min is stirred at 60 DEG C,
Stirring is lower to be added dropwise 3ml tetraethyl orthosilicates, continues to stir 12h at 60 DEG C, and it containing particle diameter is the solid of 50nm to obtain translucent
SiO2The suspension of nano-particle；
Step 3, prepare CaCO3/SiO2Composite nanoparticle：
A) by the CaCO of step steady3Particle ultrasonic disperse forms suspension in water, by isometric concentration be 1~
3mg/ml PDDA is added in the suspension, magnetic agitation, PDDA is assembled in CaCO by Coulomb force absorption3Particle table
Face, centrifuge, supersound washing, the PDDA of physical absorption is removed, then obtained CaCO3Particle is dispersed in water to obtain
Even scattered suspension；
B) suspension obtained above is added in the PSS aqueous solution, magnetic agitation 3h, centrifuges, supersound washing, obtain
To CaCO3Adsorption has polyvinylpyrrolidone, PDDA and PSS spheroidal particle, repeats the above steps so that CaCO3Particle
Adsorption is uniform；
C) by CaCO obtained above3Particle is added to prepared SiO2In the suspension of nano-particle, magnetic agitation 6
~10h, centrifuge, supersound washing removes unadsorbed SiO2Nano-particle, repeat the above steps so that SiO2Nano-particle
In CaCO3Particle surface absorption is uniform, then adsorbs PDDA/SiO twice again2Nano-particle, obtain CaCO3/SiO2Compound grain
Son, and SiO2Nano-particle is three layers；
Step 4, prepare antifogging coating：
A) Substrate treatment, volume ratio is used as 7:3 98%H2SO4And 30%H2O2To high temp glass substrate immersion treatment,
Dried up by treated high temp glass substrate distillation water washing, then with nitrogen；
B) the high temp glass substrate after cleaning is alternately immersed in PDDA and PSS solution, centre distillation water washings
The PDDA and PSS of absorption are managed, until obtaining obtaining 7 layers of PDDA and 6 layer of PSS coverings in high temp glass substrate surface；
C) high temp glass substrate obtained above is immersed in the CaCO that step 3 obtains3/SiO2Compound particle suspension
In, 5h is stood, one layer of CaCO is deposited in high temp glass substrate surface3/SiO2Compound particle coating, then by the high temp glass base
Piece is put into Muffle furnace, sinters 10h at 600~850 DEG C so that CaCO3/SiO2CaCO in compound particle3Pyrolytic, obtain
There are coarse structure and the SiO of pore structure to deposition2The high temp glass substrate of hollow ball coating.
Application scenarios three：
Fig. 1 shows a kind of glasshouse skylight that embodiments herein is related to, located at top of greenhouse, by fixed frame 1
Formed with activity box 2, the fixed frame 1 is fixed on top of greenhouse, passes through hinge between the fixed frame 1 and the activity box 2
Connection, the fixed frame 1 and activity box 2 are provided with antifog glass substrate 3.
Preferably, the antifog glass substrate 3 is high temp glass substrate, and the high temp glass substrate surface is to pass through electrostatic
The antifogging coating of self-assembling method deposition, the high temp glass substrate pass through polyelectrolyte surface modification treatment；The high temp glass
Substrate surface surface after polyelectrolyte is handled carries positive charge, antifogging coating can be deposited on into table by electrostatic attraction
Face.
Preferably, the antifogging coating is CaCO3/SiO2Compound particle, the CaCO3/SiO2Compound particle is nucleocapsid knot
Structure, CaCO3Particle is core, SiO2Nano-particle is adsorbed in the CaCO3Particle surface forms shell structure, the CaCO3Particle
Footpath is 6 μm, the SiO2Nano particle diameter is 60nm.
Due to CaCO3Decomposition is produced after calcining at high temperature, there is CO2Gas produces, CO2Gas breaks through SiO2Nano-particle
The shell structure of formation so that the shell structure surface forms aperture, is formed by SiO2The hollow ball that nano-particle is formed forms more
Hole coating, and increase the surface area of shell wall, be advantageous to adsorbed water molecule on more hollow ball walls, on the other hand, hollow ball
Duct on wall also can be that hydrone enters to provide passage in goal, be advantageous to sprawling for water droplet, increase figure due to capillary effect
The hydrophily of layer；3rd, hollow ball can also increase light transmittance, avoid because the effect of coating causes the decline of light transmittance.
Preferably, the CaCO3Particle surface coats layer of polyethylene pyrrolidones.
The polyvinylpyrrolidone is water-soluble high-molecular compound, can be in CaCO3Particle is protected as one layer of colloid
Material, avoid CaCO during without high-temperature calcination3Particle decomposes in advance.
Preferably, deposition has the high temp glass substrate of the antifogging coating and the contact angle of water droplet to be less than 3 degree, possesses higher
Hydrophily and self-cleaning property.
Still more preferably, it is as follows by Fig. 2, the making step of the antifogging coating：
Step 1, prepare CaCO3Particle：
Choose CaCO3Particle, it is cleaned by ultrasonic, then takes 3g polyvinylpyrrolidones to be added to 100ml deionized waters
In, by the CaCO after cleaning3Particle is added in deionized water, and ultrasonic 30min, makes CaCO again3Particle surface coats a strata second
Alkene pyrrolidone；
Step 2, prepare SiO2Nano-particle：
By 5ml ammoniacal liquor, 100ml absolute ethyl alcohols are added to stirring at normal temperature 10min in conical flask, and 2min is stirred at 60 DEG C,
Stirring is lower to be added dropwise 3ml tetraethyl orthosilicates, continues to stir 12h at 60 DEG C, and it containing particle diameter is the solid of 50nm to obtain translucent
SiO2The suspension of nano-particle；
Step 3, prepare CaCO3/SiO2Composite nanoparticle：
A) by the CaCO of step steady3Particle ultrasonic disperse forms suspension in water, by isometric concentration be 1~
3mg/ml PDDA is added in the suspension, magnetic agitation, PDDA is assembled in CaCO by Coulomb force absorption3Particle table
Face, centrifuge, supersound washing, the PDDA of physical absorption is removed, then obtained CaCO3Particle is dispersed in water to obtain
Even scattered suspension；
B) suspension obtained above is added in the PSS aqueous solution, magnetic agitation 3h, centrifuges, supersound washing, obtain
To CaCO3Adsorption has polyvinylpyrrolidone, PDDA and PSS spheroidal particle, repeats the above steps so that CaCO3Particle
Adsorption is uniform；
C) by CaCO obtained above3Particle is added to prepared SiO2In the suspension of nano-particle, magnetic agitation 6
~10h, centrifuge, supersound washing removes unadsorbed SiO2Nano-particle, repeat the above steps so that SiO2Nano-particle
In CaCO3Particle surface absorption is uniform, then adsorbs PDDA/SiO twice again2Nano-particle, obtain CaCO3/SiO2Compound grain
Son, and SiO2Nano-particle is three layers；
Step 4, prepare antifogging coating：
A) Substrate treatment, volume ratio is used as 7:3 98%H2SO4And 30%H2O2To high temp glass substrate immersion treatment,
Dried up by treated high temp glass substrate distillation water washing, then with nitrogen；
B) the high temp glass substrate after cleaning is alternately immersed in PDDA and PSS solution, centre distillation water washings
The PDDA and PSS of absorption are managed, until obtaining obtaining 7 layers of PDDA and 6 layer of PSS coverings in high temp glass substrate surface；
C) high temp glass substrate obtained above is immersed in the CaCO that step 3 obtains3/SiO2Compound particle suspension
In, 5h is stood, one layer of CaCO is deposited in high temp glass substrate surface3/SiO2Compound particle coating, then by the high temp glass base
Piece is put into Muffle furnace, sinters 10h at 600~850 DEG C so that CaCO3/SiO2CaCO in compound particle3Pyrolytic, obtain
There are coarse structure and the SiO of pore structure to deposition2The high temp glass substrate of hollow ball coating.
Application scenarios four：
Fig. 1 shows a kind of glasshouse skylight that embodiments herein is related to, located at top of greenhouse, by fixed frame 1
Formed with activity box 2, the fixed frame 1 is fixed on top of greenhouse, passes through hinge between the fixed frame 1 and the activity box 2
Connection, the fixed frame 1 and activity box 2 are provided with antifog glass substrate 3.
Preferably, the antifog glass substrate 3 is high temp glass substrate, and the high temp glass substrate surface is to pass through electrostatic
The antifogging coating of self-assembling method deposition, the high temp glass substrate pass through polyelectrolyte surface modification treatment；The high temp glass
Substrate surface surface after polyelectrolyte is handled carries positive charge, antifogging coating can be deposited on into table by electrostatic attraction
Face.
Preferably, the antifogging coating is CaCO3/SiO2Compound particle, the CaCO3/SiO2Compound particle is nucleocapsid knot
Structure, CaCO3Particle is core, SiO2Nano-particle is adsorbed in the CaCO3Particle surface forms shell structure, the CaCO3Particle
Footpath is 7 μm, the SiO2Nano particle diameter is 80nm.
Due to CaCO3Decomposition is produced after calcining at high temperature, there is CO2Gas produces, CO2Gas breaks through SiO2Nano-particle
The shell structure of formation so that the shell structure surface forms aperture, is formed by SiO2The hollow ball that nano-particle is formed forms more
Hole coating, and increase the surface area of shell wall, be advantageous to adsorbed water molecule on more hollow ball walls, on the other hand, hollow ball
Duct on wall also can be that hydrone enters to provide passage in goal, be advantageous to sprawling for water droplet, increase figure due to capillary effect
The hydrophily of layer；3rd, hollow ball can also increase light transmittance, avoid because the effect of coating causes the decline of light transmittance.
Preferably, the CaCO3Particle surface coats layer of polyethylene pyrrolidones.
The polyvinylpyrrolidone is water-soluble high-molecular compound, can be in CaCO3Particle is protected as one layer of colloid
Material, avoid CaCO during without high-temperature calcination3Particle decomposes in advance.
Preferably, deposition has the high temp glass substrate of the antifogging coating and the contact angle of water droplet to be less than 4 degree, possesses higher
Hydrophily and self-cleaning property.
Still more preferably, it is as follows by Fig. 2, the making step of the antifogging coating：
Step 1, prepare CaCO3Particle：
Choose CaCO3Particle, it is cleaned by ultrasonic, then takes 3g polyvinylpyrrolidones to be added to 100ml deionized waters
In, by the CaCO after cleaning3Particle is added in deionized water, and ultrasonic 30min, makes CaCO again3Particle surface coats a strata second
Alkene pyrrolidone；
Step 2, prepare SiO2Nano-particle：
By 5ml ammoniacal liquor, 100ml absolute ethyl alcohols are added to stirring at normal temperature 10min in conical flask, and 2min is stirred at 60 DEG C,
Stirring is lower to be added dropwise 3ml tetraethyl orthosilicates, continues to stir 12h at 60 DEG C, and it containing particle diameter is the solid of 50nm to obtain translucent
SiO2The suspension of nano-particle；
Step 3, prepare CaCO3/SiO2Composite nanoparticle：
A) by the CaCO of step steady3Particle ultrasonic disperse forms suspension in water, by isometric concentration be 1~
3mg/ml PDDA is added in the suspension, magnetic agitation, PDDA is assembled in CaCO by Coulomb force absorption3Particle table
Face, centrifuge, supersound washing, the PDDA of physical absorption is removed, then obtained CaCO3Particle is dispersed in water to obtain
Even scattered suspension；
B) suspension obtained above is added in the PSS aqueous solution, magnetic agitation 3h, centrifuges, supersound washing, obtain
To CaCO3Adsorption has polyvinylpyrrolidone, PDDA and PSS spheroidal particle, repeats the above steps so that CaCO3Particle
Adsorption is uniform；
C) by CaCO obtained above3Particle is added to prepared SiO2In the suspension of nano-particle, magnetic agitation 6
~10h, centrifuge, supersound washing removes unadsorbed SiO2Nano-particle, repeat the above steps so that SiO2Nano-particle
In CaCO3Particle surface absorption is uniform, then adsorbs PDDA/SiO twice again2Nano-particle, obtain CaCO3/SiO2Compound grain
Son, and SiO2Nano-particle is three layers；
Step 4, prepare antifogging coating：
A) Substrate treatment, volume ratio is used as 7:3 98%H2SO4And 30%H2O2To high temp glass substrate immersion treatment,
Dried up by treated high temp glass substrate distillation water washing, then with nitrogen；
B) the high temp glass substrate after cleaning is alternately immersed in PDDA and PSS solution, centre distillation water washings
The PDDA and PSS of absorption are managed, until obtaining obtaining 7 layers of PDDA and 6 layer of PSS coverings in high temp glass substrate surface；
C) high temp glass substrate obtained above is immersed in the CaCO that step 3 obtains3/SiO2Compound particle suspension
In, 5h is stood, one layer of CaCO is deposited in high temp glass substrate surface3/SiO2Compound particle coating, then by the high temp glass base
Piece is put into Muffle furnace, sinters 10h at 600~850 DEG C so that CaCO3/SiO2CaCO in compound particle3Pyrolytic, obtain
There are coarse structure and the SiO of pore structure to deposition2The high temp glass substrate of hollow ball coating.
Application scenarios five：
Fig. 1 shows a kind of glasshouse skylight that embodiments herein is related to, located at top of greenhouse, by fixed frame 1
Formed with activity box 2, the fixed frame 1 is fixed on top of greenhouse, passes through hinge between the fixed frame 1 and the activity box 2
Connection, the fixed frame 1 and activity box 2 are provided with antifog glass substrate 3.
Preferably, the antifog glass substrate 3 is high temp glass substrate, and the high temp glass substrate surface is to pass through electrostatic
The antifogging coating of self-assembling method deposition, the high temp glass substrate pass through polyelectrolyte surface modification treatment；The high temp glass
Substrate surface surface after polyelectrolyte is handled carries positive charge, antifogging coating can be deposited on into table by electrostatic attraction
Face.
Preferably, the antifogging coating is CaCO3/SiO2Compound particle, the CaCO3/SiO2Compound particle is nucleocapsid knot
Structure, CaCO3Particle is core, SiO2Nano-particle is adsorbed in the CaCO3Particle surface forms shell structure, the CaCO3Particle
Footpath is 10 μm, the SiO2Nano particle diameter is 100nm.
Due to CaCO3Decomposition is produced after calcining at high temperature, there is CO2Gas produces, CO2Gas breaks through SiO2Nano-particle
The shell structure of formation so that the shell structure surface forms aperture, is formed by SiO2The hollow ball that nano-particle is formed forms more
Hole coating, and increase the surface area of shell wall, be advantageous to adsorbed water molecule on more hollow ball walls, on the other hand, hollow ball
Duct on wall also can be that hydrone enters to provide passage in goal, be advantageous to sprawling for water droplet, increase figure due to capillary effect
The hydrophily of layer；3rd, hollow ball can also increase light transmittance, avoid because the effect of coating causes the decline of light transmittance.
Preferably, the CaCO3Particle surface coats layer of polyethylene pyrrolidones.
The polyvinylpyrrolidone is water-soluble high-molecular compound, can be in CaCO3Particle is protected as one layer of colloid
Material, avoid CaCO during without high-temperature calcination3Particle decomposes in advance.
Preferably, deposition has the high temp glass substrate of the antifogging coating and the contact angle of water droplet to be less than 5 degree, possesses higher
Hydrophily and self-cleaning property.
Still more preferably, it is as follows by Fig. 2, the making step of the antifogging coating：
Step 1, prepare CaCO3Particle：
Choose CaCO3Particle, it is cleaned by ultrasonic, then takes 3g polyvinylpyrrolidones to be added to 100ml deionized waters
In, by the CaCO after cleaning3Particle is added in deionized water, and ultrasonic 30min, makes CaCO again3Particle surface coats a strata second
Alkene pyrrolidone；
Step 2, prepare SiO2Nano-particle：
By 5ml ammoniacal liquor, 100ml absolute ethyl alcohols are added to stirring at normal temperature 10min in conical flask, and 2min is stirred at 60 DEG C,
Stirring is lower to be added dropwise 3ml tetraethyl orthosilicates, continues to stir 12h at 60 DEG C, and it containing particle diameter is the solid of 50nm to obtain translucent
SiO2The suspension of nano-particle；
Step 3, prepare CaCO3/SiO2Composite nanoparticle：
A) by the CaCO of step steady3Particle ultrasonic disperse forms suspension in water, by isometric concentration be 1~
3mg/ml PDDA is added in the suspension, magnetic agitation, PDDA is assembled in CaCO by Coulomb force absorption3Particle table
Face, centrifuge, supersound washing, the PDDA of physical absorption is removed, then obtained CaCO3Particle is dispersed in water to obtain
Even scattered suspension；
B) suspension obtained above is added in the PSS aqueous solution, magnetic agitation 3h, centrifuges, supersound washing, obtain
To CaCO3Adsorption has polyvinylpyrrolidone, PDDA and PSS spheroidal particle, repeats the above steps so that CaCO3Particle
Adsorption is uniform；
C) by CaCO obtained above3Particle is added to prepared SiO2In the suspension of nano-particle, magnetic agitation 6
~10h, centrifuge, supersound washing removes unadsorbed SiO2Nano-particle, repeat the above steps so that SiO2Nano-particle
In CaCO3Particle surface absorption is uniform, then adsorbs PDDA/SiO twice again2Nano-particle, obtain CaCO3/SiO2Compound grain
Son, and SiO2Nano-particle is three layers；
Step 4, prepare antifogging coating：
A) Substrate treatment, volume ratio is used as 7:3 98%H2SO4And 30%H2O2To high temp glass substrate immersion treatment,
Dried up by treated high temp glass substrate distillation water washing, then with nitrogen；
B) the high temp glass substrate after cleaning is alternately immersed in PDDA and PSS solution, centre distillation water washings
The PDDA and PSS of absorption are managed, until obtaining obtaining 7 layers of PDDA and 6 layer of PSS coverings in high temp glass substrate surface；
C) high temp glass substrate obtained above is immersed in the CaCO that step 3 obtains3/SiO2Compound particle suspension
In, 5h is stood, one layer of CaCO is deposited in high temp glass substrate surface3/SiO2Compound particle coating, then by the high temp glass base
Piece is put into Muffle furnace, sinters 10h at 600~850 DEG C so that CaCO3/SiO2CaCO in compound particle3Pyrolytic, obtain
There are coarse structure and the SiO of pore structure to deposition2The high temp glass substrate of hollow ball coating.
Those skilled in the art will readily occur to the present invention its after considering specification and putting into practice invention disclosed herein
Its embodiment.The application be intended to the present invention any modification, purposes or adaptations, these modifications, purposes or
Person's adaptations follow the general principle of the present invention and including the undocumented common knowledges in the art of the application
Or conventional techniques.Description and embodiments are considered only as exemplary, and true scope and spirit of the invention are by following
Claim is pointed out.
It should be appreciated that the invention is not limited in the precision architecture for being described above and being shown in the drawings, and
And various modifications and changes can be being carried out without departing from the scope.The scope of the present invention is only limited by appended claim.
Claims (1)
1. a kind of glasshouse skylight, located at top of greenhouse, is made up of fixed frame and activity box, it is characterised in that the fixation
Frame is fixed on top of greenhouse, is connected between the fixed frame and the activity box by hinge；Fixed frame and the activity box peace
Equipped with antifog glass substrate, the antifog glass substrate material is high temp glass；The antifog glass substrate interior surface is provided with anti-
Mist coating,
The antifogging coating contains CaCO3/SiO2Compound particle, the CaCO3/SiO2Compound particle is core shell structure；CaCO3Grain
Son is core, SiO2Nano-particle is adsorbed in the CaCO3Particle surface forms shell structure, the CaCO3Particle diameter is 5~10 μ
M, the SiO2Nano particle diameter is 50~100nm；The CaCO3Particle surface coats layer of polyethylene pyrrolidones；
The making step of the antifogging coating is as follows：
Step 1, prepare CaCO3Particle：
Choose CaCO3Particle, it is cleaned by ultrasonic, then takes 3g polyvinylpyrrolidones to be added in 100ml deionized waters, will
CaCO after cleaning3Particle is added in deionized water, and ultrasonic 30min, makes CaCO again3Particle surface coats layer of polyethylene pyrrole
Pyrrolidone；
Step 2, prepare SiO2Nano-particle：
By 5ml ammoniacal liquor, 100ml absolute ethyl alcohols are added to stirring at normal temperature 10min in conical flask, stir 2min at 60 DEG C, are stirring
Lower dropwise addition 3ml tetraethyl orthosilicates, continue to stir 12h at 60 DEG C, obtain translucent containing the solid SiO that particle diameter is 50nm2Receive
The suspension of rice corpuscles；
Step 3, prepare CaCO3/SiO2Composite nanoparticle：
A) by the CaCO of step steady3Particle ultrasonic disperse forms suspension in water, is 1~3mg/ by isometric concentration
Ml PDDA is added in the suspension, magnetic agitation, PDDA is assembled in CaCO by Coulomb force absorption3Particle surface, from
The heart separates, supersound washing, the PDDA of physical absorption is removed, then obtained CaCO3Particle, which is dispersed in water, uniformly to be divided
Scattered suspension；
B) suspension obtained above is added in the PSS aqueous solution, magnetic agitation 3h, centrifuges, supersound washing, obtain
CaCO3Adsorption has polyvinylpyrrolidone, PDDA and PSS spheroidal particle, repeats the above steps so that CaCO3Particle table
Face absorption is uniform；
C) by CaCO obtained above3Particle is added to prepared SiO2In the suspension of nano-particle, magnetic agitation 6~
10h, centrifuge, supersound washing removes unadsorbed SiO2Nano-particle, repeat the above steps so that SiO2Nano-particle exists
CaCO3Particle surface absorption is uniform, then adsorbs PDDA/SiO twice again2Nano-particle, obtain CaCO3/SiO2Compound particle,
And SiO2Nano-particle is three layers；
Step 4, prepare antifogging coating：
A) Substrate treatment, volume ratio is used as 7:3 98%H2SO4And 30%H2O2To high temp glass substrate immersion treatment, will locate
The high temp glass substrate distillation water washing managed, then dried up with nitrogen；
B) the high temp glass substrate after cleaning is alternately immersed in PDDA and PSS solution, centre is inhaled with distillation water washings reason
Attached PDDA and PSS, until obtaining obtaining 7 layers of PDDA and 6 layer of PSS coverings in high temp glass substrate surface；
C) high temp glass substrate obtained above is immersed in the CaCO that step 3 obtains3/SiO2It is quiet in compound particle suspension
5h is put, one layer of CaCO is deposited in high temp glass substrate surface3/SiO2Compound particle coating, then the high temp glass substrate is put into
In Muffle furnace, 10h is sintered at 600~850 DEG C so that CaCO3/SiO2CaCO in compound particle3Pyrolytic, deposited
There are coarse structure and the SiO of pore structure2The high temp glass substrate of hollow ball coating.
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| CN105658428B (en) * | 2013-09-18 | 2019-12-17 | 塞拉尼斯醋酸纤维有限公司 | Antifogging composition and method for producing same |
| CN104453580B (en) * | 2014-10-27 | 2016-04-13 | 西安建筑科技大学 | A kind of energy saving window |
| CN105602297A (en) * | 2015-11-17 | 2016-05-25 | 天津理工大学 | Method for preparing superhydrophobic coating layer through composite of inorganic nano-particles with different average particle sizes |
| CN105432375B (en) * | 2015-11-30 | 2018-09-28 | 中国农业大学 | A kind of small-sized fast inserted greenhouse |
| CN105453951A (en) * | 2015-12-30 | 2016-04-06 | 张富年 | Multi-span greenhouse roof with functions of lighting, heat preservation, ventilation and sunshading |
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