CN105713502B - A kind of solar energy heat absorbing coating that absorptivity is high - Google Patents
A kind of solar energy heat absorbing coating that absorptivity is high Download PDFInfo
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- CN105713502B CN105713502B CN201610248189.5A CN201610248189A CN105713502B CN 105713502 B CN105713502 B CN 105713502B CN 201610248189 A CN201610248189 A CN 201610248189A CN 105713502 B CN105713502 B CN 105713502B
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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
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/41—Organic pigments; Organic dyes
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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
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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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
- C09D7/65—Additives macromolecular
Abstract
The invention discloses a kind of solar energy heat absorbing coating that absorptivity is high, can be used for any heat collector for converting solar energy into thermal energy.The coating is uniformly prepared by certain weight part ratio using sand mill dispersion mixing by resin, optical absorbing agent, solvent and auxiliary agent.The present invention is using the optical absorbing agent by being treated in a manner of novel simple as the important source material for preparing the coating, coating can be made to improve a lot the absorptivity of sunlight, to make the photothermal conversion efficiency of heat collector be improved, and also makes coating that there is excellent weatherability, extend the service life of coating.
Description
【Technical field】
The present invention relates to heat-absorbing paint more particularly to a kind of solar paints high to sunshine absorptivity.
【Background technology】
Under the present situation that world today's energy is increasingly rare, problem of environmental pollution is increasingly severe, as most clean energy
Source, Solar use had obtained extensive attention both domestic and external already, and wherein solar energy heating utilization research and application are extremely important
One of mode.But makes direct utilization ratio low since solar energy density is low, or even can not utilize.Therefore, the sun
Energy coating just becomes the absorptivity size of sunlight the core using solar energy.Solar paint mainly has reflected solar energy
Coating and absorption solar paint.Reflected solar energy coating is mainly used for heat-insulating, and absorption is then used forBuilding heat preservationAnd the sun
The collection and application of energy.Solar selective heat-absorbing paint is a kind of functional coating, is had in sunlight wavelength region high
Absorptivity α has low emissivity ε in low-temp radiating region.Surface by being covered in heat collector, which forms one layer, to be enriched with
The film of solar energy density improves photo-thermal energy conversion efficiency to convert solar radiant energy to thermal energy.
Common solar energy heat absorbing coating, often not high to the absorptivity of light, photothermal conversion efficiency is low, so that heat collector
Practicability it is not high.Certainly, also there are many researchs for being dedicated to raising heat-absorbing paint to the absorptivity of sunlight at present.For example,
102286243 B of Chinese patent CN improve the absorptivity to sunlight using a kind of spinel type pigment as optical absorbing agent, but
Its black spinel type pigment for being prepared using sol-gel auto-combustion and being calcined at a certain temperature, due to
The difference of calcination temperature can impact the structure and performance of product, restrictive and unstability；Also have using various
Heat-absorbing paint prepared by nano-substance improves coating to the absorptivity of sunlight, but cost is excessively high, such as Chinese patent
CN 103589275 A。
【Invention content】
It is an object of the invention to：In view of the above problems, provide it is a kind of to sunlight have high-absorbility too
It is positive can coating, the important source material of treated by using novel simple method optical absorbing agent as the solar paint so that should
Solar paint has high absorptivity to sunlight, and weatherability is strong, and service life is long, and preparation process is safe and simple, is easy to
Operation has larger practicability.
To achieve the goals above, the technical solution adopted by the present invention is as follows：
A kind of solar energy heat absorbing coating that absorptivity is high, it is by resin, optical absorbing agent, solvent and auxiliary agent by certain weight
Amount part Billy is uniformly prepared with sand mill dispersion mixing；Resin, optical absorbing agent, solvent and the auxiliary agent is according to parts by weight
Number ratio is calculated as：55-75 parts of resin；35-45 parts of optical absorbing agent；15-25 parts of solvent；3-8 parts of auxiliary agent.
In the present invention, further, the resin is modified polyurethane resin, modified organic silicone resin and modification
One kind in epoxy resin.
In the present invention, further, the optical absorbing agent is green by channel black, iron oxide black, pigment scarlet powder, modified phthalein
Blue, talcum powder and aluminium powder are formulated by certain weight part ratio；The channel black, iron oxide black, pigment scarlet powder, copper phthalein are green
Blue, talcum powder and aluminium powder are calculated as according to weight part ratio：35-40 parts of channel black；30-35 parts of iron oxide black, pigment scarlet powder 8-12
4-8 parts of part, modified 20-25 parts of phthalocyanine blue, 3-5 parts of talcum powder and aluminium powder.
In the present invention, further, the preparation method of the modification phthalocyanine blue is：First phthalocyanine is taken out by weight
It is 15-20 parts blue, the concentrated sulfuric acid of 40-50mL is added, after stirring 5-10min, is heated to 80-100 DEG C and is heated to reflux, filter while hot,
Filtrate is washed till pH=7 with deionized water, it is dry at 8-12 DEG C；Dibutyl amine class copper phthalocyanine is added by ratio of weight and the number of copies again to spread out
Biological 2-5 parts and 1-3 parts of amino acid type surfactant are uniformly mixed, and the concentrated sulfuric acid of 50-70mL is added, and stir 5-10min
Afterwards, after carrying out ultrasound 10-15min with ultrasonic wave, filtering, after dry at 8-12 DEG C, regrinding, be uniformly mixed to get to
Modified phthalocyanine blue.
In the present invention, further, the preparation method of the optical absorbing agent is：It first, will according to weight part ratio meter
Channel black, iron oxide black, pigment scarlet powder, modified phthalocyanine blue, talcum powder and aluminium powder are uniformly mixed, and sand mill is used in combination to be sanded
10-15 minutes, control grain size was 15-25 μm, the deionized water of 50-60mL is then added, with 60-80r/min at 70-80 DEG C
Mixing speed stir 3-5min, it is static to be cooled to room temperature, filter, wash 3 times, and be added 50-60mL deionized water, with from
Scheming centrifuges 3-5min, will once more be filtered with outer portion in addition to the bulky grain of precipitation, washs 3 times, will filtering at 60-80 DEG C
Object is dried, and is sintered to filtrate at 1000-1600 DEG C, and crushed to sintered product, is sanded, you can obtain institute
The optical absorbing agent stated.
In the present invention, further, the solvent is the mixture (volume ratio 9 of acetone and toluene:1), tetrahydrochysene furan
It mutters and the mixture of toluene (volume ratio 9:1), ethyl acetate and phosphate mixture (volume ratio 9:1) one kind in, and solvent is equal
For technical grade.
In the present invention, further, the auxiliary agent be antifoaming agent, plasticizer and drier, antifoaming agent, plasticizer and
The weight part ratio of drier is：1-3:1-2:2-3.
Further, the antifoaming agent is polyoxyethylene polyoxypropylene pentaerythrite ether, polyoxyethylene polyoxy Propanolamine
One kind in ether, polypropylene glycerol aether and polyoxyethylene polyoxypropylene glycerin ether.
Further, the plasticizer is one kind in diethyl phthalate and dibutyl phthalate.
Further, the drier is manganese dioxide naphthenic soap, cobalt naphthenic soap, lead naphthenic soap and manganese cycloalkanes
2 kinds in sour soap or 3 kinds.
The raw material being related in this application can be obtained with equipment in buying on the market.
In conclusion by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
1. the present invention is to carry out mixed grinding using sand mill, sand mill inner integument is small, and surface area is big, in wear smooth
Shearing point it is more, particle is ground thinner, grain size is within 15-25 μm, good dispersion, without adding additional dispersion
Agent, it is cost-effective, improve efficiency.The optical absorbing agent ground in this approach has high degree of scatter, has high tinting strength, tinting power, greatly
The big absorbability improved to light.
2. modification phthalocyanine blue prepared by the present invention, is first heated to reflux phthalocyanine blue with the concentrated sulfuric acid, its is improved
Purity, rear close using structure and for alkalinity dibutyl amine class copper phthalocyanine derivative are surface-treated；The ammonia of alkalinity is added again
Base acid type surfactant, is ultrasonically treated with ultrasonic wave, increases the surface-active of surfactant, it is made to be more easy to and pole
Property it is low and strong bonded for acid phthalocyanine blue；With dibutyl amine class copper phthalocyanine derivative and amino acid type surfactant to phthalocyanine
Indigo plant is modified so that modified phthalocyanine blue has higher wetability and dispersibility, be more easy to by resin than common phthalocyanine blue and
Wet with solvent is uniformly mixed, and has good anti-freezing wadding property.
2. optical absorbing agent prepared by the present invention absorbs pigment modification phthalocyanine blue using shortwave area and long-wavelength region absorption pigment is bright red
Powder is combined, and channel black, iron oxide black, the two, talcum powder and aluminium powder is added, and black light-absorbing agent, and extinction has been made
Agent is also matched according to certain weight ratio 35%-45% with resin, and triplicity makes coating have high absorptivity.
Importantly, selected pigment is complementary to one another in terms of physical property, aluminium powder can reflect ultraviolet light, and iron oxide black has
The ability of strong absorption ultraviolet light, the two act on the ageing resistance for improving optical absorbing agent, enhance the durability of coating, extension makes
With service life, high financial profit；And channel black can increase system viscosity, talcum powder can prevent coating sagging, the two from combining
Increase with using surface adhesive force and adhesion strength so that coating be more easy to heat collector surface firm connection, solve easily
The problem of with being fallen off by maxxaedium；So that coating has stronger weatherability, service life long；In addition, selected optical absorbing agent
Raw material all has stronger covering power, therefore under be combineding with each other so that the extinction efficiency of coating greatly improves, and coating is made to have
There are better stability and weatherability.
3. it is physical process that the present invention, which prepares optical absorbing agent and the method for coating, simple to operation, feasibility is high, and prepares
Coating out, various physical properties are strong, have prodigious use value.
【Specific implementation mode】
With reference to embodiment, the present invention is further illustrated, but following embodiments are not used in the reality of the limitation present invention
Apply range.
Embodiment 1：
A kind of solar paint that absorptivity is high, raw material are：
Resin：Modified polyurethane resin 55Kg；
Optical absorbing agent：Use channel black 35Kg, iron oxide black 30Kg, pigment scarlet powder 8Kg, modified phthalocyanine blue 20Kg, talcum powder
3Kg and aluminium powder 4Kg；
Solvent：Mixture (the volume ratio 9 of acetone and toluene:1)；
Auxiliary agent is antifoaming agent, plasticizer and drier, wherein
Antifoaming agent：Polyoxyethylene polyoxypropylene pentaerythrite ether 1Kg；
Plasticizer：Diethyl phthalate 1Kg；
Drier：Manganese dioxide naphthenic soap 1Kg, cobalt naphthenic soap 1Kg；
The step of preparing absorptivity high solar energy heat absorbing coating according to above-mentioned raw material is as follows：
(1) it takes out phthalocyanine blue 15Kg by weight first, the concentrated sulfuric acid of 40mL is added, after stirring 5min, be heated to 80
It DEG C is heated to reflux, filters while hot, filtrate is washed till pH=7 with deionized water, it is dry at 8 DEG C；Add by ratio of weight and the number of copies again
Enter dibutyl amine class copper phthalocyanine derivative 2Kg and amino acid type surfactant 1Kg, is uniformly mixed, the concentrated sulfuric acid of 50mL is added, stirs
After mixing 5min, after carrying out ultrasound 10min with ultrasonic wave, filtering, after dry at 8 DEG C, regrinding, be uniformly mixed to get to
The modification phthalocyanine blue of 20Kg.
It (2) will be according to weight part ratio channel black 35Kg, iron oxide black 30Kg, pigment scarlet powder 8Kg, modified phthalocyanine blue
20Kg, talcum powder 3Kg and aluminium powder 5Kg are uniformly mixed, and sand mill is used in combination to be sanded 10 minutes, and control grain size is 15 μm, then
The deionized water of 50mL is added, 3min is stirred with the mixing speed of 60r/min at 70 DEG C, it is static to be cooled to room temperature, it filters, washes
Wash 3 times, and the deionized water of same volume be added, with centrifuge 3min, by addition to the bulky grain of precipitation with outer portion again
It filters again, washs 3 times, filtrate is dried at 60 DEG C, filtrate is sintered at 1000 DEG C, and to sintered production
Object crushes, and is sanded, you can obtains the optical absorbing agent.
(3) according to weight part ratio, resin, optical absorbing agent, solvent and auxiliary agent are put into operation 5min in sand mill, dispersion is mixed
It closes uniformly, can be obtained the high solar energy heat absorbing coating of absorptivity.
Embodiment 2：
A kind of solar paint that absorptivity is high, raw material are：
Resin：Modified polyurethane resin 65Kg；
Optical absorbing agent：Use channel black 37Kg, iron oxide black 32Kg, pigment scarlet powder 10Kg, modified phthalocyanine blue 22Kg, talcum powder
4Kg and aluminium powder 6Kg；
Solvent：Mixture (the volume ratio 9 of tetrahydrofuran and toluene:1)；
Auxiliary agent is antifoaming agent, plasticizer and drier, wherein
Antifoaming agent：Polyoxyethylene polyoxy propyl alcohol amidogen ether 1Kg；
Plasticizer：Dibutyl phthalate 1.5Kg；
Drier：Lead naphthenic soap 1Kg, cobalt naphthenic soap 1Kg；
The step of preparing absorptivity high solar energy heat absorbing coating according to above-mentioned raw material is as follows：
(1) it takes out phthalocyanine blue 18Kg by ratio of weight and the number of copies first, the concentrated sulfuric acid of 45mL is added, after stirring 8min, be heated to
90 DEG C are heated to reflux, and filter while hot, and filtrate is washed till pH=7 with deionized water, dry at 10 DEG C；Again by ratio of weight and the number of copies
Dibutyl amine class copper phthalocyanine derivative 3Kg and amino acid type surfactant 2Kg is added, is uniformly mixed, the concentrated sulfuric acid of 60mL is added,
After stirring 8min, after carrying out ultrasound 12min with ultrasonic wave, filtering after dry at 10 DEG C, is regrind, it is uniformly mixed to get
To the modification phthalocyanine blue of 22Kg.
It (2) will be according to weight part ratio channel black 37Kg, iron oxide black 32Kg, pigment scarlet powder 10Kg, modified phthalocyanine blue
22Kg, talcum powder 4Kg and aluminium powder 6Kg are uniformly mixed, and sand mill is used in combination to be sanded 12 minutes, and control grain size is 20 μm, then
The deionized water of 55mL is added, 4min is stirred with the mixing speed of 70r/min at 75 DEG C, it is static to be cooled to room temperature, it filters, washes
Wash 3 times, and the deionized water of same volume be added, with centrifuge 4min, by addition to the bulky grain of precipitation with outer portion again
It filters again, washs 3 times, filtrate is dried at 70 DEG C, filtrate is sintered at 1200 DEG C, and to sintered production
Object crushes, and is sanded, you can obtains the optical absorbing agent.
(3) according to weight part ratio, resin, optical absorbing agent, solvent and auxiliary agent are put into operation 8min in sand mill, dispersion is mixed
It closes uniformly, can be obtained the high solar energy heat absorbing coating of absorptivity.
Embodiment 3：
A kind of solar paint that absorptivity is high, raw material are：
Resin：Modified polyurethane resin 75Kg；
Optical absorbing agent：Use channel black 40Kg, iron oxide black 35Kg, pigment scarlet powder 12Kg, modified phthalocyanine blue 25Kg, talcum powder
5Kg and aluminium powder 8Kg；
Solvent：Ethyl acetate and phosphate mixture (volume ratio 9:1)；
Auxiliary agent is antifoaming agent, plasticizer and drier, wherein
Antifoaming agent：Polypropylene glycerol aether 3Kg；
Plasticizer：Dibutyl phthalate 2Kg；
Drier：Lead naphthenic soap 1Kg, cobalt naphthenic soap 1Kg, manganese dioxide naphthenic soap 1Kg；
The step of preparing absorptivity high solar energy heat absorbing coating according to above-mentioned raw material is as follows：
(1) it takes out phthalocyanine blue 20Kg by ratio of weight and the number of copies first, the concentrated sulfuric acid of 50mL is added, after stirring 10min, be heated to
100 DEG C are heated to reflux, and filter while hot, and filtrate is washed till pH=7 with deionized water, dry at 12 DEG C；Again in parts by weight
Than dibutyl amine class copper phthalocyanine derivative 3Kg and amino acid type surfactant 2Kg is added, it is uniformly mixed, the dense sulphur of 70mL is added
Acid, after stirring 10min, after carrying out ultrasound 15min with ultrasonic wave, filtering is regrind after dry at 12 DEG C, is uniformly mixed,
Obtain the modification phthalocyanine blue of 25Kg.
It (2) will be according to weight part ratio channel black 40Kg, iron oxide black 35Kg, pigment scarlet powder 12Kg, modified phthalocyanine blue
25Kg, talcum powder 5Kg and aluminium powder 8Kg are uniformly mixed, and sand mill is used in combination to be sanded 15 minutes, and control grain size is 25 μm, then
The deionized water of 60mL is added, 5min is stirred with the mixing speed of 80r/min at 80 DEG C, it is static to be cooled to room temperature, it filters, washes
Wash 3 times, and the deionized water of same volume be added, with centrifuge 5min, by addition to the bulky grain of precipitation with outer portion again
It filters again, washs 3 times, filtrate is dried at 80 DEG C, filtrate is sintered at 1500 DEG C, and to sintered production
Object crushes, and is sanded, you can obtains the optical absorbing agent.
(3) according to weight part ratio, resin, optical absorbing agent, solvent and auxiliary agent are put into operation 12min in sand mill, dispersion
It is uniformly mixed, can be obtained the high solar energy heat absorbing coating of absorptivity.
The solar energy heat absorbing coating high to absorptivity prepared in embodiment 1-3, at normal temperatures direct spraying or painting
It brushes before the heat sink metal layer surface on glass tube with vacuum inner layer sheet surface or flat-plate solar collector of absorbing heat, stenciling coating, needs
Glass or the clean processing of metal surface progress, metal surface are reached metal true qualities, and coating stirred evenly, then basis
The heat collector type brushing coating thickness 50-160 μm of coating or thicker.
By above-mentioned application operating procedure step, to obtaining this coating solar energy heat absorbing coating that thickness is 60 μm and common
Black solar energy heat absorbing coating carries out technical indicator verification test, and test result is as shown in table 1：
As can be seen from the table, compared to common black solar energy heat absorbing coating, the solar energy heat absorbing coating is to light
Transmissivity and emissivity very little, and the absorptivity of light is greatly increased, up to 90% or more.Also, in high-absorbility
On the basis of, there is excellent other performance.
Claims (4)
1. a kind of solar energy heat absorbing coating that absorptivity is high, it is characterised in that it be by resin, optical absorbing agent, solvent and auxiliary agent by
Certain weight part ratio is uniformly prepared using sand mill dispersion mixing；The resin, solvent, auxiliary agent, optical absorbing agent are pressed
It is calculated as according to weight part ratio：55-75 parts of resin；35-45 parts of optical absorbing agent；15-25 parts of solvent；3-8 parts of auxiliary agent；
The optical absorbing agent presses certain weight by channel black, iron oxide black, pigment scarlet powder, modified phthalocyanine blue, talcum powder and aluminium powder
Amount part ratio is formulated；Channel black, iron oxide black, pigment scarlet powder, modified phthalocyanine blue, talcum powder and the aluminium powder is according to weight
Part ratio is calculated as：35-40 parts of channel black, 30-35 parts of iron oxide black, 8-12 parts of pigment scarlet powder, modified 20-25 parts of phthalocyanine blue, talcum
4-8 parts of 3-5 parts of powder and aluminium powder；
The preparation method of the modified phthalocyanine blue is：15-20 parts of phthalocyanine blue is first taken out by weight, and the dense of 40-50mL is added
Sulfuric acid is heated to 80-100 DEG C and is heated to reflux, filter while hot, filtrate is washed till pH=with deionized water after stirring 5-10min
7, it is dry at 8-12 DEG C；2-5 parts of dibutyl amine class copper phthalocyanine derivative is added by ratio of weight and the number of copies again and amino acid pattern surface is lived
Property 1-3 parts of agent, be uniformly mixed, be added the concentrated sulfuric acid of 50-70mL, after stirring 5-10min, ultrasound 10-15min is carried out with ultrasonic wave
Afterwards, it filters, after dry at 8-12 DEG C, grinding is uniformly mixed to get to modified phthalocyanine blue；
The preparation method of the optical absorbing agent is：First, according to weight part ratio meter, by channel black, iron oxide black, pigment scarlet powder,
Modified phthalocyanine blue, talcum powder and aluminium powder are uniformly mixed, and sand mill is used in combination to be sanded 10-15 minutes, and control grain size is 15-25 μ
Then the deionized water of 50-60mL is added in m, 3-5min is stirred with the mixing speed of 60-80r/min at 70-80 DEG C, static
It is cooled to room temperature, filters, wash 3 times, and the deionized water of 50-60mL is added, it, will be in addition to precipitation with centrifuge 3-5min
Bulky grain filtered once more with outer portion, wash 3 times, filtrate is dried at 60-80 DEG C, in 1000-1600 DEG C of condition
Under filtrate is sintered, and sintered product is crushed, is sanded, you can obtain optical absorbing agent.
2. a kind of high solar energy heat absorbing coating of absorptivity according to claim 1, which is characterized in that the resin
For one kind in modified polyurethane resin, modified organic silicone resin and the epoxy resin of modification.
3. a kind of high solar energy heat absorbing coating of absorptivity according to claim 1, which is characterized in that the solvent
It is 9 for volume ratio：1 acetone and the mixture of toluene, volume ratio 9:1 tetrahydrofuran and the mixture of toluene, volume ratio
It is 9:One kind in 1 ethyl acetate and phosphate mixture, and solvent is technical grade.
4. a kind of high solar energy heat absorbing coating of absorptivity according to claim 1, which is characterized in that the auxiliary agent
Weight part ratio for antifoaming agent, plasticizer and drier, antifoaming agent, plasticizer and drier is：1-3:1-2:2-3.
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| CN201610248189.5A CN105713502B (en) | 2016-04-20 | 2016-04-20 | A kind of solar energy heat absorbing coating that absorptivity is high |
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| CN201610248189.5A CN105713502B (en) | 2016-04-20 | 2016-04-20 | A kind of solar energy heat absorbing coating that absorptivity is high |
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| CN105713502B true CN105713502B (en) | 2018-09-21 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106752915B (en) * | 2016-12-14 | 2019-12-27 | 上海电力学院 | Nanoscale metal ceramic solar heat-absorbing coating material and preparation method thereof |
| CN109439092A (en) * | 2018-11-14 | 2019-03-08 | 安徽兆拓新能源科技有限公司 | A kind of solar panel heat-absorbing paint and preparation method thereof |
| CN113354974B (en) * | 2021-07-09 | 2022-09-13 | 广州特种承压设备检测研究院 | Black paint and preparation method thereof |
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| CN102134428A (en) * | 2010-12-31 | 2011-07-27 | 西安利澳科技股份有限公司 | Solar-absorbing coating |
| CN103740203A (en) * | 2013-12-27 | 2014-04-23 | 广西超星太阳能科技有限公司 | Solar energy heat absorption coating |
| CN104910785A (en) * | 2015-07-01 | 2015-09-16 | 芜湖市晨曦新型建材科技有限公司 | Solar heat absorption dope |
| CN105482603A (en) * | 2016-02-03 | 2016-04-13 | 广西超星太阳能科技有限公司 | Flat plate solar energy heat absorption coating |
-
2016
- 2016-04-20 CN CN201610248189.5A patent/CN105713502B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102134428A (en) * | 2010-12-31 | 2011-07-27 | 西安利澳科技股份有限公司 | Solar-absorbing coating |
| CN103740203A (en) * | 2013-12-27 | 2014-04-23 | 广西超星太阳能科技有限公司 | Solar energy heat absorption coating |
| CN104910785A (en) * | 2015-07-01 | 2015-09-16 | 芜湖市晨曦新型建材科技有限公司 | Solar heat absorption dope |
| CN105482603A (en) * | 2016-02-03 | 2016-04-13 | 广西超星太阳能科技有限公司 | Flat plate solar energy heat absorption coating |
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