CN109385128A - A kind of solar energy vacuum tube special absorptive coating and preparation method thereof - Google Patents
A kind of solar energy vacuum tube special absorptive coating and preparation method thereof Download PDFInfo
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- CN109385128A CN109385128A CN201811008451.4A CN201811008451A CN109385128A CN 109385128 A CN109385128 A CN 109385128A CN 201811008451 A CN201811008451 A CN 201811008451A CN 109385128 A CN109385128 A CN 109385128A
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/32—Radiation-absorbing paints
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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
- 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
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
- C09D4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09D159/00 - C09D187/00
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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
- 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
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
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Abstract
The invention discloses a kind of solar energy vacuum tube special absorptive coatings and preparation method thereof.Composite absorption film is made of following component according to parts by weight in the absorber coatings: 10-15 parts of aluminium nitride, 15-27 parts of graphene, 20-28 parts of acrylic resin, 2-8 parts of aluminium powder, 5-8 parts of cobalt powder, 12-18 parts of foamed aluminium, 1-3 parts of maleic acid grafting agent, 1-3 parts of plant extracts, 20-28 parts of hydrophilic macromolecular compounds.Each component is mixed in investment ball mill and is ground, and after being modulated into slurry membrane at composite absorption film；Step 2, reflectance coating, composite absorption film and antireflective film are successively covered on the surface of the inner glass tube of the solar energy vacuum tube pre-processed by way of membrane, after cured up to absorber coatings.Solar energy vacuum tube special absorptive coating of the present invention is prepared using three-decker, and composite absorption film has wide spectrum infrared absorption, high conversion rate under low temperature.
Description
Technical field
The present invention relates to solar energy vacuum tube preparation technical fields, and in particular to a kind of solar energy vacuum tube special absorptive painting
Layer and preparation method thereof.
Background technique
As green building, the continuous of building energy conservation are popularized, the development and utilization of solar thermal collector is increasingly by weight
Depending on.The performance of superiority and inferiority solar energy integrator is embodied in vacuum tube.Existing solar energy vacuum tube is all two using double-layer coaxial
Root glass tube is made, and the outer surface of inner layer glass tube is coated with the absorbed layer for absorbing solar radiation energy, so that luminous energy be turned
Thermal energy is turned to, new energy is obtained.
Application number 201610736114.1 discloses a kind of solar energy vacuum tube, including cover glass tube and inner glass tube, and
The outer surface of inner glass tube is coated with absorbed layer；Absorbed layer is coated on the outer surface of inner glass tube by absorbing coating, and then is formed
Absorbed layer；The absorbing coating is to be made of raw material from the following weight: 35~55 parts of resin, 8~16 parts of pigment, solvent 20~30
Part and 6~20 parts of auxiliary agent；Wherein, the resin is mixed by organic siliconresin and acrylic resin, organic siliconresin and
The mass ratio of acrylic resin is 2.2~3:1；The pigment is organic carbon black.Although the present invention is by changing the suction absorbed
Coating is received, so that on the basis of absorbing coating does not use absorbent, it may have higher absorbability, while making absorbing coating same
Shi Gaoqiang has both weatherability, waterproofness and protects light colour retention, so as to enable solar energy vacuum tube to absorb to greatest extent too
Positive radiation energy, while the service life of solar energy vacuum tube is improved, but the poor mechanical property of the coating, and low temperature absorption rate
It is low.
Summary of the invention
In view of the deficiencies of the prior art, the purpose of the present invention is to provide a kind of solar energy vacuum tube special absorptive coating and
Preparation method, the absorber coatings weatherability is strong, and absorbability is good, and also achievable high conversion ratio at low temperature.
A kind of solar energy vacuum tube special absorptive coating successively includes reflectance coating, multiple since the outer surface of inner glass tube
It closes absorbing film and antireflective film, the composite absorption film is made of following component according to parts by weight: 10-15 parts of aluminium nitride, stone
Black alkene 15-27 parts, 20-28 parts of acrylic resin, 2-8 parts of aluminium powder, 5-8 parts of cobalt powder, 12-18 parts of foamed aluminium, maleic acid grafting agent
1-3 parts, 1-3 parts of plant extracts, 20-28 parts of hydrophilic macromolecular compounds.
It is that the composite absorption film is made of following component according to parts by weight: 12 parts of aluminium nitride, stone as improved
25 parts of black alkene, 26 parts of acrylic resin, 5 parts of aluminium powder, 6 parts of cobalt powder, 15 parts of foamed aluminium, 2 parts of maleic acid grafting agent, hydrophily high score
24 parts of sub- compound.
It is that the reflectance coating is Cu film, with a thickness of 0.01-0.03 μm as improved.
It is that the antireflective film is mixed by aluminium oxide, silicon nitride, dopamine solution and nano-sized carbon as improved, it is thick
Degree is 25-45nm.
The preparation method of above-mentioned solar energy vacuum tube special absorptive coating, includes the following steps,
Step 1, each component is mixed in investment ball mill and is ground, and after being modulated into slurry membrane at composite absorption film；
Step 2, the surface of the inner glass tube by way of membrane in the solar energy vacuum tube pre-processed successively covers reflection
Film, composite absorption film and antireflective film, after cured up to absorber coatings.
It is that the speed of ball milling is 10000-12000rpm in step 1 as improved.
It is that preprocess method will clean after the surface polishing of inner glass tube in step 2 as improved.
The utility model has the advantages that
Compared with prior art, solar energy vacuum tube special absorptive coating of the present invention is prepared using three-decker, compound suction
Winder has wide spectrum infrared absorption, high conversion rate under low temperature；The composite absorption film low-shrinkage, weatherability are strong, have good
Stability, it is strong with the caking property of reflectance coating and antireflective film, be in addition covered on inner glass tube using film, ensure that absorptivity and
The homogeneity of reflectivity.
Specific embodiment
The present invention is further described in detail below by specific embodiment.
Embodiment 1
A kind of solar energy vacuum tube special absorptive coating successively includes reflectance coating, compound suction since the outer surface of inner glass tube
Winder and antireflective film, the composite absorption film are made of following component according to parts by weight: 10 parts of aluminium nitride, graphene 15
Part, 20 parts of acrylic resin, 2 parts of aluminium powder, 5 parts of cobalt powder, 12 parts of foamed aluminium, 1 part of maleic acid grafting agent, 1 part of plant extracts, parent
20 parts of aqueous high molecular compound.
The reflectance coating is Cu film, with a thickness of 0.01 μm.
The antireflective film is mixed by aluminium oxide, silicon nitride, dopamine solution and nano-sized carbon, with a thickness of 25nm.
The preparation method of above-mentioned solar energy vacuum tube special absorptive coating, includes the following steps,
Step 1, each component is mixed in investment ball mill and is ground with 10000rpm, and after being modulated into slurry membrane at composite absorption
Film；
Step 2, the surface of the inner glass tube by way of membrane in the solar energy vacuum tube pre-processed successively covers reflection
Film, composite absorption film and antireflective film, after cured up to absorber coatings；Preprocess method will be clear after the surface polishing of inner glass tube
It washes.
The composite absorption film of the present invention is tested in 1.5-15 mu m waveband absorptivity height using FTIR spectrum, is existed
95% or more, and with wavelength change and the absorption variations of itself are small.
Embodiment 2
A kind of solar energy vacuum tube special absorptive coating successively includes reflectance coating, compound suction since the outer surface of inner glass tube
Winder and antireflective film, the composite absorption film are made of following component according to parts by weight: 12 parts of aluminium nitride, graphene 25
Part, 26 parts of acrylic resin, 5 parts of aluminium powder, 6 parts of cobalt powder, 15 parts of foamed aluminium, 2 parts of maleic acid grafting agent, hydrophilic macromolecule chemical combination
24 parts of object.
The reflectance coating is Cu film, with a thickness of 0.02 μm.
The antireflective film is mixed by aluminium oxide, silicon nitride, dopamine solution and nano-sized carbon, with a thickness of 40nm.
The preparation method of above-mentioned solar energy vacuum tube special absorptive coating, includes the following steps,
Step 1, each component is mixed in investment ball mill and is ground with 11000rpm, and after being modulated into slurry membrane at composite absorption
Film；
Step 2, the surface of the inner glass tube by way of membrane in the solar energy vacuum tube pre-processed successively covers reflection
Film, composite absorption film and antireflective film, after cured up to absorber coatings；Preprocess method will be clear after the surface polishing of inner glass tube
It washes.
The composite absorption film of the present invention is tested in 1.5-15 mu m waveband absorptivity height using FTIR spectrum, is existed
95% or more, and with wavelength change and the absorption variations of itself are small.
Embodiment 3
A kind of solar energy vacuum tube special absorptive coating successively includes reflectance coating, compound suction since the outer surface of inner glass tube
Winder and antireflective film, the composite absorption film are made of following component according to parts by weight: 15 parts of aluminium nitride, graphene 27
Part, 28 parts of acrylic resin, 2-8 parts of aluminium powder, 8 parts of cobalt powder, 18 parts of foamed aluminium, 3 parts of maleic acid grafting agent, 3 parts of plant extracts,
28 parts of hydrophilic macromolecular compounds.
The reflectance coating is Cu film, with a thickness of 0.03 μm.
The antireflective film is mixed by aluminium oxide, silicon nitride, dopamine solution and nano-sized carbon, with a thickness of 45nm.
The preparation method of above-mentioned solar energy vacuum tube special absorptive coating, includes the following steps,
Step 1, each component is mixed in investment ball mill and is ground with 12000rpm, and after being modulated into slurry membrane at composite absorption
Film；
Step 2, the surface of the inner glass tube by way of membrane in the solar energy vacuum tube pre-processed successively covers reflection
Film, composite absorption film and antireflective film, after cured up to absorber coatings；Preprocess method will be clear after the surface polishing of inner glass tube
It washes.
The composite absorption film of the present invention is tested in 1.5-15 mu m waveband absorptivity height using FTIR spectrum, is existed
95% or more, and with wavelength change and the absorption variations of itself are small.
Embodiment 4
A kind of solar energy vacuum tube special absorptive coating successively includes reflectance coating, compound suction since the outer surface of inner glass tube
Winder and antireflective film, the composite absorption film are made of following component according to parts by weight: 15 parts of aluminium nitride, graphene 27
Part, 28 parts of acrylic resin, 2-8 parts of aluminium powder, 8 parts of cobalt powder, 12 parts of foamed aluminium, 1 part of maleic acid grafting agent, 1 part of plant extracts,
20 parts of hydrophilic macromolecular compounds.
The reflectance coating is Cu film, with a thickness of 0.02 μm.
The antireflective film is mixed by aluminium oxide, silicon nitride, dopamine solution and nano-sized carbon, with a thickness of 40nm.
The preparation method of above-mentioned solar energy vacuum tube special absorptive coating, includes the following steps,
Step 1, each component is mixed in investment ball mill and is ground with 11000rpm, and after being modulated into slurry membrane at composite absorption
Film；
Step 2, the surface of the inner glass tube by way of membrane in the solar energy vacuum tube pre-processed successively covers reflection
Film, composite absorption film and antireflective film, after cured up to absorber coatings；Preprocess method will be clear after the surface polishing of inner glass tube
It washes.
The composite absorption film of the present invention is tested in 1.5-15 mu m waveband absorptivity height using FTIR spectrum, is existed
95% or more, and with wavelength change and the absorption variations of itself are small.
The foregoing is only a preferred embodiment of the present invention, the scope of protection of the present invention is not limited to this, it is any ripe
Know those skilled in the art within the technical scope of the present disclosure, the letter for the technical solution that can be become apparent to
Altered or equivalence replacement are fallen within the protection scope of the present invention.
Claims (7)
1. a kind of solar energy vacuum tube special absorptive coating, which is characterized in that since the outer surface of inner glass tube, successively include
Reflectance coating, composite absorption film and antireflective film, the composite absorption film are made of following component according to parts by weight: aluminium nitride
10-15 parts, 15-27 parts of graphene, 20-28 parts of acrylic resin, 2-8 parts of aluminium powder, 5-8 parts of cobalt powder, 12-18 parts of foamed aluminium, horse
Come sour grafting agent 1-3 parts, 1-3 parts of plant extracts, 20-28 parts of hydrophilic macromolecular compounds.
2. a kind of solar energy vacuum tube special absorptive coating according to claim 1, which is characterized in that the composite absorption
Film is made of following component according to parts by weight: 12 parts of aluminium nitride, 25 parts of graphene, 26 parts of acrylic resin, 5 parts of aluminium powder,
6 parts of cobalt powder, 15 parts of foamed aluminium, 2 parts of maleic acid grafting agent, 24 parts of hydrophilic macromolecular compounds.
3. a kind of solar energy vacuum tube special absorptive coating according to claim 1, which is characterized in that the reflectance coating is
Cu film, with a thickness of 0.01-0.03 μm.
4. a kind of solar energy vacuum tube special absorptive coating according to claim 1, which is characterized in that the antireflective film by
Aluminium oxide, silicon nitride, dopamine solution and nano-sized carbon mix, with a thickness of 25-45nm.
5. based on a kind of preparation method of solar energy vacuum tube special absorptive coating described in claim 1, which is characterized in that packet
Include following steps: step 1, each component being mixed in investment ball mill and is ground, and after being modulated into slurry membrane at composite absorption film；
Step 2, reflectance coating, multiple is successively covered on the surface of the inner glass tube of the solar energy vacuum tube pre-processed by way of membrane
Absorbing film and antireflective film are closed, after cured up to absorber coatings.
6. a kind of preparation method of solar energy vacuum tube special absorptive coating according to claim 5, which is characterized in that step
The speed of ball milling is 10000-12000rpm in rapid 1.
7. a kind of preparation method of solar energy vacuum tube special absorptive coating according to claim 5, which is characterized in that step
Preprocess method will clean after the surface polishing of inner glass tube in rapid 2.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811008451.4A CN109385128A (en) | 2018-08-31 | 2018-08-31 | A kind of solar energy vacuum tube special absorptive coating and preparation method thereof |
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| CN201811008451.4A CN109385128A (en) | 2018-08-31 | 2018-08-31 | A kind of solar energy vacuum tube special absorptive coating and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111393988A (en) * | 2020-04-28 | 2020-07-10 | 西安钧盛新材料科技有限公司 | Graphene-based ultra-black extinction coating and preparation method thereof |
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| CN1512119A (en) * | 2002-12-30 | 2004-07-14 | 北京欧科能太阳能技术有限公司 | Solar energy selective absorptive coating and its preparing method |
| CN200968738Y (en) * | 2006-11-22 | 2007-10-31 | 江苏太阳雨太阳能有限公司 | Medium-high temperature solar heat collecting pipe |
| CN201273736Y (en) * | 2008-08-11 | 2009-07-15 | 范天方 | Solar energy heat collecting tube |
| CN102635964A (en) * | 2012-04-01 | 2012-08-15 | 中国科学院宁波材料技术与工程研究所 | Broad-spectrum solar absorbing coating and preparation method thereof |
| CN107596392A (en) * | 2017-10-09 | 2018-01-19 | 南京图艾生物医药科技有限公司 | Medical ultrasonic coupling agent |
| CN107699092A (en) * | 2017-11-14 | 2018-02-16 | 广西超星太阳能科技有限公司 | A kind of water-based solar energy heat absorbing coating |
-
2018
- 2018-08-31 CN CN201811008451.4A patent/CN109385128A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1512119A (en) * | 2002-12-30 | 2004-07-14 | 北京欧科能太阳能技术有限公司 | Solar energy selective absorptive coating and its preparing method |
| CN200968738Y (en) * | 2006-11-22 | 2007-10-31 | 江苏太阳雨太阳能有限公司 | Medium-high temperature solar heat collecting pipe |
| CN201273736Y (en) * | 2008-08-11 | 2009-07-15 | 范天方 | Solar energy heat collecting tube |
| CN102635964A (en) * | 2012-04-01 | 2012-08-15 | 中国科学院宁波材料技术与工程研究所 | Broad-spectrum solar absorbing coating and preparation method thereof |
| CN107596392A (en) * | 2017-10-09 | 2018-01-19 | 南京图艾生物医药科技有限公司 | Medical ultrasonic coupling agent |
| CN107699092A (en) * | 2017-11-14 | 2018-02-16 | 广西超星太阳能科技有限公司 | A kind of water-based solar energy heat absorbing coating |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111393988A (en) * | 2020-04-28 | 2020-07-10 | 西安钧盛新材料科技有限公司 | Graphene-based ultra-black extinction coating and preparation method thereof |
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