CN105602299A - Preparing technology for nanometer ATO thermal insulation composite paint - Google Patents
Preparing technology for nanometer ATO thermal insulation composite paint Download PDFInfo
- Publication number
- CN105602299A CN105602299A CN201610053726.0A CN201610053726A CN105602299A CN 105602299 A CN105602299 A CN 105602299A CN 201610053726 A CN201610053726 A CN 201610053726A CN 105602299 A CN105602299 A CN 105602299A
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- Prior art keywords
- ato
- slurry
- insulation composite
- heat insulation
- paste
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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
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
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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
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
-
- 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
- C09D7/63—Additives non-macromolecular organic
Abstract
The invention relates to the field of heat insulation paint processing, in particular to a preparing technology for nanometer ATO thermal insulation composite paint. The preparing technology comprises the steps that nanometer ATO powder is added with ethyl alcohol, and the mixture is evenly stirred to be prepared into paste; the evenly-stirred paste is perpendicularly sprayed to the surface of a rolling wheel rotating at a high speed from top to bottom through a spray nozzle; the rolling wheel throws the paste to an atomizing chamber on one side, and paste liquid drops are formed; high-pressure inert gas is introduced into the atomizing chamber from bottom to top to impact the paste liquid drops; the inert gas is recycled from the upper side of the atomizing chamber, and ATO paste is collected from the lower side of the atomizing chamber; the collected ATO paste is added with ethyl alcohol and a silane coupling agent, the mixture is evenly stirred and then subjected to standing, and the ATO thermal insulation composite paint is obtained. According to the preparing technology, the sprayed ATO paste is smashed through the centrifugal force of the rotating rolling wheel, and agglomeration of ATO particles in the paste is destroyed through impact of the high-speed inert gas, so that the dispersing effect of the ATO paste is improved, and thus the prepared ATO thermal insulation composite paint is stable in performance and good in heat insulation effect.
Description
Technical field
The present invention relates to the preparation field of insulating moulding coating, is the preparation technology of nano ATO heat insulation composite paint specifically.
Background technology
At present, because nano transparent insulating coating can be good at seeing through visible ray and intercepts infrared light, obtained more and more coating material production business' attention. Now, at home, be scarcely out of swaddling-clothes about the research of this coating, be also only applied on the building and means of transport of operation air-conditioning system. Nano ATO is that antimony-doped stannic oxide is the main material in transparent heat insulating dope, it is a kind of have excellent conductive performance and transparent N-type semiconductor material, nano conducting powders contains certain density electron hole, and cause the absorption of free carrier: for the ultraviolet range (200-380nm) that accounts for solar energy 5%, ATO particle almost absorbs completely; For the visible region (380-780nm) that accounts for 50% energy, ATO does not absorb; For the near infrared region (780-2600nm) that accounts for 50% energy, because sun light frequency is higher than the vibration frequency of nano particle, therefore play the iris action near infrared light energy. Therefore, if ATO nano particle is evenly spread to and makes coating in coating, then be coated to glass surface, can play and neither affect indoor daylighting, reach again good effect of heat insulation. Due to the preparation method's of existing nano ATO paint deficiency, in the coating of preparation, ATO particle diameter skewness, affects effect of heat insulation.
Summary of the invention
For the problems referred to above, the invention provides the preparation technology of the good nano ATO heat insulation composite paint of a kind of effect of heat insulation.
The present invention solves the problems of the technologies described above adopted technical scheme: a kind of preparation technology of ATO insulating moulding coating, comprises the following steps:
(1) in nano ATO powder, add ethanol to stir, be mixed with slurry;
(2) slurry stirring is vertically injected into from top to bottom to the roller surface of High Rotation Speed by nozzle;
(3) roller gets rid of slurry to the spray chamber of a side, forms slurry drop;
(4) in spray chamber, pass into high-pressure inert gas shock slurry drop from bottom to top;
(5) reclaim inert gas from spray chamber upside, collect ATO slurry from spray chamber downside;
(6) in the ATO slurry of collecting, add ethanol and silane coupler, and leave standstill after stirring, obtain ATO insulating moulding coating.
As preferably, in step (1), the particle diameter of ATO powder is 30-40nm, and in the slurry of preparation, the content of ATO is 20-30wt%.
As preferably, in step (2), the mass flowrate of pulp jets is 6-8g/s.
As preferably, the vertical range between nozzle and roller is 0.01-0.1mm.
As preferably, the diameter of roller is 40-50mm, and roller rotating speed is 300-350r/min.
As preferably, in spray chamber, it is 45 °-90 ° that inert gas flows to the angle of horizontal direction, and the flow velocity of inert gas is 30m/s.
As preferably, the volume ratio of ATO slurry, ethanol, silane coupler is 1:(3-5): (0.02-0.1).
As preferably, under the magnetic agitation that the ATO slurry of collection is 250-350r/min at rotating speed, add ethanol and silane coupler, and leave standstill after stirring 1-2h.
The present invention smashes the ATO slurry of injection by the centrifugal force of swing roller, then clashes into by high speed inert gas, has destroyed the reunion of ATO particle in slurry, has improved the dispersion effect of ATO slurry; Make the heat insulation compound organic coating of ATO by ethanol, silane coupling A TO slurry, not only heat-proof quality is better, and hydrophobic performance is strong simultaneously.
Detailed description of the invention
To describe the present invention below in detail, be used for explaining the present invention in this illustrative examples of the present invention and explanation, but not as a limitation of the invention.
The preparation technology of ATO heat insulation composite paint of the present invention, it adopts following steps:
First in nano ATO powder, add ethanol to stir, be mixed with slurry, then the slurry stirring is vertically injected into the roller surface of High Rotation Speed by nozzle; The mass flowrate that should ensure pulp jets in implementation process is that the vertical range between 6-8g/s, nozzle and roller is 0.01-0.1mm, and the roller diameter simultaneously adopting is 40-50mm, and roller rotating speed is 300-350r/min; In implementation process, the effect of nozzle and roller disperses slurry first, clashes into by high-speed gas and get rid of to the slurry of spray chamber, realizes for the second time and disperseing; Make like this ATO grain diameter less, for the coating that processability is stable is laid a solid foundation.
In spray chamber, slurry moves from the top down, and gas clashes into slurry from bottom to top, thereby both are fully contacted, and makes to disperse more even; After clashing into, due to both density differences, under the effect of gravity, can separate, therefore can collect gas from spray chamber upside, downside is collected the ATO slurry after disperseing, easy to operate simple. In spray chamber, the flow direction of gas and the angle of horizontal direction are preferably 45 °--90 °, and gas flow rate keep 30m/s be advisable, make like this dispersion effect better.
Collect after the ATO slurry after disperseing, slowly add ethanol and silane coupler to it, and add ethanol and silane coupler under the magnetic agitation that is 250-350r/min at rotating speed, and leave standstill after stirring 1-2h, thereby obtain ATO heat insulation composite paint. In the present invention, before dispersion, the particle diameter of ATO powder is 30-40nm, and in the slurry of preparation, the content of ATO is 20-30wt%, and the volume ratio of ATO slurry, ethanol, silane coupler is 1:(3-5): (0.02-0.1). Because the parameter such as content, concentration of ATO can affect the effect of heat insulation of final coating, the present invention adopts above-mentioned parameter can obtain best effect of heat insulation.
Embodiment 1
Get the ATO powder that particle diameter is about 30nm, add ethanol to be mixed with the slurry of 20wt%, then slurry is vertically injected into the roller surface of rotation by nozzle; The mass flowrate that keeps pulp jets is that the vertical range between 6g/s, nozzle and roller is that 0.01mm, roller diameter are 40mm, and roller rotating speed is 300r/min; Meanwhile, in spray chamber, to keep 45 ° of angles with horizontal direction, and pass into argon gas shock slurry with the flow velocity of 30m/s; Then from spray chamber upside gas recovery, collect ATO slurry from spray chamber bottom; Then, in the ATO slurry of collecting, slowly add ethanol and silane coupler, wherein the volume ratio of ATO slurry, ethanol, silane coupler is 1:3:0.02, and leaves standstill after magnetic agitation 2min taking rotating speed as 250r/min, obtains nano ATO composite coating. Performance Detection to coating is known, the about 10nm of ATO average grain diameter in coating, and coating is made after film coating, the even transmitance of its visible ray approximately 80%, infrared region rejection rate approximately 81%, is about 95.2 ° to the contact angle of water.
Embodiment 2
Get the ATO powder that particle diameter is about 35nm, add the slurry that is mixed with 25wt% in ethanol, then slurry is vertically injected into the roller surface of rotation by nozzle; The mass flowrate that keeps pulp jets is that the vertical range between 7g/s, nozzle and roller is that 0.05mm, roller diameter are 45mm, and roller rotating speed is 320r/min; Meanwhile, in spray chamber, to keep 60 ° of angles with horizontal direction, and pass into argon gas shock slurry with the flow velocity of 30m/s; Then from spray chamber upside gas recovery, collect ATO slurry from spray chamber bottom; Then, in the ATO slurry of collecting, slowly add ethanol and silane coupler, wherein the volume ratio of ATO slurry, ethanol, silane coupler is 1:4:0.07, and leaves standstill after magnetic agitation 40min taking rotating speed as 300r/min, obtains nano ATO paint. Performance Detection to coating is known, the about 7nm of ATO average grain diameter in coating, and coating is made after film coating, the even transmitance of its visible ray approximately 88%, infrared region rejection rate approximately 90%, is about 97.8 ° to the contact angle of water.
Embodiment 3
Get the ATO powder that particle diameter is about 40nm, add the slurry that is mixed with 30wt% in ethanol, then slurry is vertically injected into the roller surface of rotation by nozzle; The mass flowrate that keeps pulp jets is that the vertical range between 8g/s, nozzle and roller is that 0.1mm, roller diameter are 42mm, and roller rotating speed is 350r/min; Meanwhile, in spray chamber, to keep 90 ° of angles with horizontal direction, and pass into argon gas shock slurry with the flow velocity of 30m/s; Then from spray chamber upside gas recovery, collect ATO slurry from spray chamber bottom; Then, in the ATO slurry of collecting, slowly add ethanol and silane coupler, wherein the volume ratio of ATO slurry, ethanol, silane coupler is 1:5:0.1, and leaves standstill after magnetic agitation 30min taking rotating speed as 350r/min, obtains nano ATO paint. Performance Detection to coating is known, the about 9nm of ATO average grain diameter in coating, and coating is made after film coating, the even transmitance of its visible ray approximately 84%, infrared region rejection rate approximately 86%, is about 95.8 ° to the contact angle of water
The technical scheme above embodiment of the present invention being provided is described in detail, applied principle and the embodiment of specific case to the embodiment of the present invention herein and set forth, the explanation of above embodiment is only applicable to help to understand the principle of the embodiment of the present invention; , for one of ordinary skill in the art, according to the embodiment of the present invention, in detailed description of the invention and range of application, all will change, in sum, this description should not be construed as limitation of the present invention meanwhile.
Claims (8)
1. the preparation technology of nano ATO heat insulation composite paint, comprises the following steps:
(1) in nano ATO powder, add ethanol to stir, be mixed with slurry;
(2) slurry stirring is vertically injected into from top to bottom to the roller surface of High Rotation Speed by nozzle;
(3) roller gets rid of slurry to the spray chamber of a side, forms slurry drop;
(4) in spray chamber, pass into high-pressure inert gas shock slurry drop from bottom to top;
(5) reclaim inert gas from spray chamber upside, collect ATO slurry from spray chamber downside;
(6) in the ATO slurry of collecting, add ethanol and silane coupler, and leave standstill after stirring, obtain ATO heat insulation composite paint.
2. the preparation technology of nano ATO heat insulation composite paint according to claim 1, is characterized in that: in step (1), the particle diameter of ATO powder is 30-40nm, and in the slurry of preparation, the content of ATO is 20-30wt%.
3. the preparation technology of nano ATO heat insulation composite paint according to claim 1, is characterized in that: in step (2), the mass flowrate of pulp jets is 6-8g/s.
4. the preparation technology of nano ATO heat insulation composite paint according to claim 3, is characterized in that: the vertical range between nozzle and roller is 0.01-0.1mm.
5. the preparation technology of nano ATO heat insulation composite paint according to claim 4, is characterized in that: the diameter of roller is 40-50mm, roller rotating speed is 300-350r/min.
6. the preparation technology of nano ATO heat insulation composite paint according to claim 1, is characterized in that: in spray chamber, the flow direction of inert gas and the angle of horizontal direction are 45 °-90 °, and the flow velocity of inert gas is 30m/s.
7. the preparation technology of nano ATO heat insulation composite paint according to claim 1, is characterized in that: the volume ratio of ATO slurry, ethanol, silane coupler is 1:(3-5): (0.02-0.1).
8. the preparation technology of nano ATO heat insulation composite paint according to claim 7, is characterized in that: under the magnetic agitation that the ATO slurry of collection is 250-350r/min at rotating speed, add ethanol and silane coupler, and leave standstill after stirring 1-2h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610053726.0A CN105602299B (en) | 2016-01-27 | 2016-01-27 | The preparation process of nano ATO heat insulation composite paint |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610053726.0A CN105602299B (en) | 2016-01-27 | 2016-01-27 | The preparation process of nano ATO heat insulation composite paint |
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| CN105602299A true CN105602299A (en) | 2016-05-25 |
| CN105602299B CN105602299B (en) | 2018-08-31 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2030117U (en) * | 1988-02-06 | 1989-01-04 | 中南工业大学 | Fast condensing equipment for making fine powder |
| CN101219859A (en) * | 2007-11-30 | 2008-07-16 | 华南理工大学 | Nano-oiliness ATO heat-insulating slurry, production method and uses thereof |
| CN101637823A (en) * | 2008-07-28 | 2010-02-03 | 宝山钢铁股份有限公司 | Method and device for preparing metal powder |
| CN102788488A (en) * | 2012-08-03 | 2012-11-21 | 梁首强 | High-speed centrifugal drying method and drying system for implementing method |
| CN104493189A (en) * | 2015-01-09 | 2015-04-08 | 中国久远高新技术装备公司 | Method and device for metal powder preparation based on controllable magnetic levitation melting technology |
-
2016
- 2016-01-27 CN CN201610053726.0A patent/CN105602299B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2030117U (en) * | 1988-02-06 | 1989-01-04 | 中南工业大学 | Fast condensing equipment for making fine powder |
| CN101219859A (en) * | 2007-11-30 | 2008-07-16 | 华南理工大学 | Nano-oiliness ATO heat-insulating slurry, production method and uses thereof |
| CN101637823A (en) * | 2008-07-28 | 2010-02-03 | 宝山钢铁股份有限公司 | Method and device for preparing metal powder |
| CN102788488A (en) * | 2012-08-03 | 2012-11-21 | 梁首强 | High-speed centrifugal drying method and drying system for implementing method |
| CN104493189A (en) * | 2015-01-09 | 2015-04-08 | 中国久远高新技术装备公司 | Method and device for metal powder preparation based on controllable magnetic levitation melting technology |
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| CN105602299B (en) | 2018-08-31 |
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