CN105524538B - The method that gunite prepares ATO insulating moulding coatings - Google Patents
The method that gunite prepares ATO insulating moulding coatings Download PDFInfo
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- CN105524538B CN105524538B CN201610053713.3A CN201610053713A CN105524538B CN 105524538 B CN105524538 B CN 105524538B CN 201610053713 A CN201610053713 A CN 201610053713A CN 105524538 B CN105524538 B CN 105524538B
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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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2231—Oxides; Hydroxides of metals of tin
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Paints Or Removers (AREA)
Abstract
The present invention relates to the manufacture field of insulating moulding coating, the method that specifically gunite prepares ATO insulating moulding coatings, including deionized water is added into nano ATO powder and is configured to slurry；Slurry is vertically sprayed from top to bottom by nozzle to high-speed rotating roller surface；Slurry is got rid of the spray chamber to side by idler wheel；It is passed through high-pressure inert gas into spray chamber and hits slurry drop；Again by the collecting chamber of slurry drop and gas injection to spray chamber side；Then ATO slurries are collected on the downside of collecting chamber；Aqueous polyurethane emulsion is added into the ATO slurries of collection, and is stood after stirring evenly, obtains ATO insulating moulding coatings.The present invention smashes the ATO slurries of injection by the centrifugal force of swing roller, it is hit again by high velocity inert gas, destroy the reunion of ATO particles in slurry, then by after dispersion slurry and gas sprayed to collecting chamber by injector, slurry is disperseed again, so that the ATO insulating moulding coatings performance prepared is stable, heat insulation is preferable.
Description
Technical field
The present invention relates to the preparation field of insulating moulding coating, method that specifically a kind of gunite prepares ATO insulating moulding coatings.
Background technology
Currently, since nano transparent insulating coating can be good at through visible light and obstruct infrared light, obtain more next
The more attention of overbrushing material manufacturer.Now, at home, the research about this coating is scarcely out of swaddling-clothes, and also only applies
In on the building and means of transport of operation air-conditioning system.Nano ATO, that is, antimony-doped stannic oxide is the master in transparent heat insulating dope
Material is wanted, is a kind of with excellent conductive performance and transparent N-type semiconductor material, nano conducting powders contain a certain concentration
Electron hole, and cause the absorption of free carrier：For accounting for the ultraviolet range of solar energy 5%（200—380nm）, ATO
Particle almost absorbs；For accounting for the visible region of 50% energy（380—780nm）, ATO do not absorb；For accounting for 50% energy
Near infrared region（780—2600nm）, since the frequency of sunlight is higher than the vibration frequency of nano-particle, therefore play to close red
The iris action of outer light energy.Therefore, coating is made in coating if ATO nano particles are evenly spread to, glass is arrived in re-coating
Surface, can play neither influences indoor daylighting, and reaches good heat insulation.Due to the preparation of existing nano ATO paint
The deficiency of method, ATO particle diameter distributions are uneven in the coating of preparation, influence heat insulation.
Invention content
In view of the above-mentioned problems, the present invention provides a kind of method that the preferable gunite of heat insulation prepares ATO insulating moulding coatings.
Technical solution is used by the present invention solves above-mentioned technical problem：The method that gunite prepares ATO insulating moulding coatings,
Include the following steps：
（1）Deionized water is added into nano ATO powder to stir evenly, is configured to slurry；
（2）The slurry stirred evenly is vertically sprayed from top to bottom by nozzle to high-speed rotating roller surface；
（3）Slurry is got rid of the spray chamber to side by idler wheel, forms slurry drop；
（4）High-pressure inert gas is passed through into spray chamber from bottom to top and hits slurry drop；
（5）Again by the collecting chamber of slurry drop and gas injection to spray chamber side；
（6）Then inert gas is recycled on the upside of collecting chamber, and ATO slurries are collected from collecting chamber downside；
（7）Aqueous polyurethane emulsion is added into the ATO slurries of collection, and is stood after stirring evenly, obtains the heat-insulated paintings of ATO
Material.
Preferably, step（1）The grain size of middle ATO powder is 30-40nm, and the content of ATO is 20-in the slurry of preparation
30wt%。
Preferably, step（2）The mass flowrate of middle pulp jets is 6-8g/s.
Preferably, the vertical range between nozzle and idler wheel is 0.01-0.1mm.
Preferably, a diameter of 40-50mm of idler wheel, idler wheel rotating speed is 300-350r/min.
Preferably, in spray chamber, inert gas flow direction and the angle of horizontal direction are 45 ° -90 °, inert gas
Flow velocity is 30m/s.
Preferably, a concentration of 25-40wt% of aqueous polyurethane emulsion.
Preferably, the volume ratio of ATO slurries and aqueous polyurethane emulsion is 1：（3—5）.
Preferably, aqueous polyurethane is added in the case where rotating speed is the magnetic agitation of 250-350r/min in the ATO slurries collected
Lotion, and stood after stirring 30-50min.
Preferably, being equipped with injector in spray chamber, the gentle body of slurry is sprayed by injector to collection in spray chamber
Room.
The present invention smashes the ATO slurries of injection by the centrifugal force of swing roller, then is hit by high velocity inert gas,
The reunion for destroying ATO particles in slurry improves the dispersion effect of ATO slurries；Then by after dispersion slurry and gas lead to
Overspray device is sprayed to collecting chamber, is disperseed again to slurry, so that the ATO insulating moulding coatings performance stabilization, the heat-insulated effect that prepare
Fruit is preferable.
Specific implementation mode
The present invention is described more detail below, illustrative examples of the invention and explanation are used for explaining the present invention herein,
But it is not as a limitation of the invention.
The method for preparing ATO insulating moulding coatings of the present invention, uses following steps：
Deionized water is added first into nano ATO powder to stir evenly, is configured to slurry, then the slurry that will be stirred evenly
It is vertically sprayed by nozzle to high-speed rotating roller surface；It should ensure that the mass flowrate of pulp jets is in implementation process
Vertical range between 6-8g/s, nozzle and idler wheel is 0.01-0.1mm, while the roller diameter used rolls for 40-50mm
Wheel speed is 300-350r/min；In implementation process, the effect of nozzle and idler wheel makes slurry first disperse, and gets rid of to spray chamber
Slurry hit by high-speed gas, realize that second disperses；In this way so that ATO grain diameter smallers, stablize for processability
Coating lay a solid foundation；It is sprayed again to collecting chamber by injector in spray chamber, slurry can be made in the pressure of gas in this way
It mixes again, is then disperseed by injector third time, further increase the dispersion quality of ATO.
There is pressure due to being passed through the indoor inert gas of atomization itself, it only need to be in the side-wall hole of spray chamber, then in hole
Interior installation injector achieves that injection, therefore processes simply, at low cost；Slurry moves from the top down in spray chamber, and gas
Body hits slurry from bottom to top, so that the two comes into full contact with so that dispersion is more uniform；After hitting, due to the two
Density is different, can detach under gravity, therefore gas can be collected on the upside of spray chamber, and the ATO after dispersion is collected in downside
Slurry is easy to operate simple.In spray chamber, the flow direction of gas and the angle of horizontal direction are preferably 45 ° -- and 90 °, and gas
Flow velocity keeps 30m/s to be advisable, and makes dispersion effect more preferable in this way.
After collecting the ATO slurries after dispersion, it is slowly added to aqueous polyurethane emulsion to it, and be 250-350r/ in rotating speed
Aqueous polyurethane emulsion is added under the magnetic agitation of min, and is stood after stirring 30-50min, to obtain ATO insulating moulding coatings.
In the present invention, before dispersion, the grain size of ATO powder is 30-40nm, and the content of ATO is 20-30wt% in the slurry of preparation, and
The volume ratio of a concentration of 25-40wt% of aqueous polyurethane emulsion, ATO slurries and aqueous polyurethane emulsion is 1：（3—5）.By
The heat insulation of final coating can be influenced in parameters such as content, the concentration of ATO, the present invention can get most preferably using above-mentioned parameter
Heat insulation.
Embodiment 1
The ATO powder that grain size is about 30nm is taken, is added in deionized water and is configured to the slurry of 20wt%, then slurry is passed through
The nozzle roller surface that vertically injection extremely rotates；Keep the mass flowrate of pulp jets hanging down between 6g/s, nozzle and idler wheel
Straight distance is 0.01mm, roller diameter 40mm, and idler wheel rotating speed is 300r/min；Meanwhile in spray chamber, with horizontal direction
45 ° of angles are kept, and argon gas is passed through with the flow velocity of 30m/s and hits slurry；Then slurry passes through spray under the effect of the pressure of gas
Emitter is sprayed to collecting chamber, then from gas recovery on the upside of collecting chamber, from collecting chamber bottom collection ATO slurries；Then, to collection
40wt% aqueous polyurethane emulsions are slowly added in ATO slurries, the wherein volume ratio of ATO slurries and aqueous polyurethane emulsion is 1：
3, and nano ATO paint is obtained to be stood after the magnetic agitation 50min of 250r/min with rotating speed.It can to the performance detection of coating
Know, the ATO average grain diameters about 8nm in coating, after film coating is made in coating, the uniform transmitance of visible light about 79%, infrared region
Rejection rate about 77%.
Embodiment 2
The ATO powder that grain size is about 35nm is taken, is added in deionized water and is configured to the slurry of 25wt%, then slurry is passed through
The nozzle roller surface that vertically injection extremely rotates；Keep the mass flowrate of pulp jets hanging down between 7g/s, nozzle and idler wheel
Straight distance is 0.05mm, roller diameter 45mm, and idler wheel rotating speed is 320r/min；Meanwhile in spray chamber, with horizontal direction
60 ° of angles are kept, and argon gas is passed through with the flow velocity of 30m/s and hits slurry；Then slurry passes through spray under the effect of the pressure of gas
Emitter is sprayed to collecting chamber, then from gas recovery on the upside of collecting chamber, from collecting chamber bottom collection ATO slurries；Then, to collection
30wt% aqueous polyurethane emulsions are slowly added in ATO slurries, the wherein volume ratio of ATO slurries and aqueous polyurethane emulsion is 1：
4, and nano ATO paint is obtained to be stood after the magnetic agitation 40min of 300r/min with rotating speed.It can to the performance detection of coating
Know, the ATO average grain diameters about 6nm in coating, after film coating is made in coating, the uniform transmitance of visible light about 86%, infrared region
Rejection rate about 88%.
Embodiment 3
The ATO powder that grain size is about 40nm is taken, is added in deionized water and is configured to the slurry of 30wt%, then slurry is passed through
The nozzle roller surface that vertically injection extremely rotates；Keep the mass flowrate of pulp jets hanging down between 8g/s, nozzle and idler wheel
Straight distance is 0.1mm, roller diameter 42mm, and idler wheel rotating speed is 350r/min；Meanwhile in spray chamber, with horizontal direction
90 ° of angles are kept, and argon gas is passed through with the flow velocity of 30m/s and hits slurry；Then slurry passes through spray under the effect of the pressure of gas
Emitter is sprayed to collecting chamber, then from gas recovery on the upside of collecting chamber, from collecting chamber bottom collection ATO slurries；Then, to collection
25wt% aqueous polyurethane emulsions are slowly added in ATO slurries, the wherein volume ratio of ATO slurries and aqueous polyurethane emulsion is 1：
5, and nano ATO paint is obtained to be stood after the magnetic agitation 30min of 350r/min with rotating speed.It can to the performance detection of coating
Know, the ATO average grain diameters about 8nm in coating, after film coating is made in coating, the uniform transmitance of visible light about 83%, infrared region
Rejection rate about 82%.
It is provided for the embodiments of the invention technical solution above to be described in detail, specific case used herein
The principle and embodiment of the embodiment of the present invention are expounded, the explanation of above example is only applicable to help to understand this
The principle of inventive embodiments；Meanwhile for those of ordinary skill in the art, embodiment according to the present invention, in specific embodiment party
There will be changes in formula and application range, in conclusion the content of the present specification should not be construed as limiting the invention.
Claims (7)
1. the method that gunite prepares ATO insulating moulding coatings, includes the following steps：
（1）Deionized water is added into nano ATO powder to stir evenly, is configured to slurry；
（2）The slurry stirred evenly is vertically sprayed from top to bottom by nozzle to high-speed rotating roller surface；
（3）Slurry is got rid of the spray chamber to side by idler wheel, forms slurry drop；
（4）High-pressure inert gas is passed through into spray chamber from bottom to top and hits slurry drop；
（5）Again by the collecting chamber of slurry drop and gas injection to spray chamber side；
（6）Then inert gas is recycled on the upside of collecting chamber, and ATO slurries are collected from collecting chamber downside；
（7）Aqueous polyurethane emulsion is added into the ATO slurries of collection, and is stood after stirring evenly, obtains ATO insulating moulding coatings；
Step（1）The grain size of middle ATO powder is 30-40nm, and the content of ATO is 20-30wt% in the slurry of preparation；Aqueous polyurethane
A concentration of 25-the 40wt% of lotion；The volume ratio of ATO slurries and aqueous polyurethane emulsion is 1：（3—5）.
2. the method that gunite prepares ATO insulating moulding coatings according to claim 1, it is characterised in that：Step（2）Middle pulp spraying
The mass flowrate penetrated is 6-8g/s.
3. the method that gunite prepares ATO insulating moulding coatings according to claim 2, it is characterised in that：Between nozzle and idler wheel
Vertical range be 0.01-0.1mm.
4. the method that gunite prepares ATO insulating moulding coatings according to claim 3, it is characterised in that：Idler wheel it is a diameter of
40-50mm, idler wheel rotating speed are 300-350r/min.
5. the method that gunite prepares ATO insulating moulding coatings according to claim 1, it is characterised in that：In spray chamber, inertia
The flow direction of gas and the angle of horizontal direction are 45 ° -90 °, and the flow velocity of inert gas is 30m/s.
6. the method that gunite prepares ATO insulating moulding coatings according to claim 1, it is characterised in that：The ATO slurries of collection exist
Aqueous polyurethane emulsion is added under the magnetic agitation that rotating speed is 250-350r/min, and is stood after stirring 30-50min.
7. the method that gunite prepares ATO insulating moulding coatings according to claim 1, it is characterised in that：It is equipped in spray chamber
Injector, the gentle body of slurry is sprayed by injector to collecting chamber in spray chamber.
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| CN201610053713.3A CN105524538B (en) | 2016-01-27 | 2016-01-27 | The method that gunite prepares ATO insulating moulding coatings |
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| CN201610053713.3A CN105524538B (en) | 2016-01-27 | 2016-01-27 | The method that gunite prepares ATO insulating moulding coatings |
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| CN105524538B true CN105524538B (en) | 2018-10-09 |
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| CN101186781B (en) * | 2007-12-14 | 2010-05-19 | 华南理工大学 | Transparent heat insulating dope and preparation method thereof |
| CN101637823B (en) * | 2008-07-28 | 2013-01-02 | 宝山钢铁股份有限公司 | Method and device for preparing metal powder |
| JP2014111683A (en) * | 2012-12-05 | 2014-06-19 | Tomoyuki Wada | Heat insulation and shielding coating material |
| CN103102083A (en) * | 2013-02-26 | 2013-05-15 | 杭州电子科技大学 | Preparation method of nano antimony tin oxide transparent insulation film |
| CN104493189B (en) * | 2015-01-09 | 2016-08-24 | 中国久远高新技术装备公司 | Metal powder preparation method based on controllable magnetic suspension melting technique and device |
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