CN105860830A - A solar energy high-temperature resistant heat-absorption coating material and a preparing method thereof - Google Patents
A solar energy high-temperature resistant heat-absorption coating material and a preparing method thereof Download PDFInfo
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- CN105860830A CN105860830A CN201610194743.6A CN201610194743A CN105860830A CN 105860830 A CN105860830 A CN 105860830A CN 201610194743 A CN201610194743 A CN 201610194743A CN 105860830 A CN105860830 A CN 105860830A
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- coating material
- solar energy
- high temperature
- heat absorbing
- energy high
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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
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
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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
- C09D5/18—Fireproof paints including high temperature resistant 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/24—Electrically-conducting paints
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paints Or Removers (AREA)
Abstract
A solar energy high-temperature resistant heat-absorption coating material and a preparing method thereof are disclosed. The coating material is prepared from 50-70 parts by volume of Pyromark, 10-13 parts by volume of ethyl acetate, 15-25 parts by volume of butyl acetate, 0-5 parts by volume of cyclohexane, 0-3 parts by volume of acetone and 1-10 parts by volume of a conductive agent. The coating material prepared by the method has excellent resistance to high temperatures, can be used for a working environment having a temperature of 600 DEG C or above, has low viscosity and high conductivity, is suitable for manual coating, roller coating and air spraying and is suitable for electrostatic coating.
Description
Technical field
The invention belongs to solar energy thermal-power-generating technical field, particularly relate to a kind of solar energy high temperature heat absorbing coating material
And preparation method thereof.
Background technology
Along with the quickening of process of industrialization, the mankind are increasing to the demand of the energy, though traditional fossil energy
So meet the energy demand of the mankind in a very long time, but its amount usable is gradually lowered.Meanwhile, fossil
The use of fuel also brings a series of environmental problem, substitutes tradition in the urgent need to a kind of new clean energy resource
The energy.Solar energy due to its cleaning, continuable feature be increasingly becoming focus of attention, the most tower too
Sun can increasingly come into one's own by generation technology.
Tower type solar energy thermal power generation mainly by heliostat system, heat absorption with thermal energy transfer systems (thermofluid system),
Electricity generation system three part forms.Heliostat system realizes the real-time tracking to the sun, and sunlight reflexes to heat absorption
Device.The high heat flux radiation energy that the heat sink being positioned on high tower is reflected by heliostat system, and by it
It is converted into the high temperature heat of working fluid.High temperature fluid is delivered to be positioned at the steam generator on ground by pipeline,
Produce high pressure superheated steam, promote gas-turbine generating.Key building block as tower type solar energy thermal power generation station
One of, the mean heat flux that heat extractor is born reaches 300-1000kW/m2, and operating temperature may be up to 600 DEG C
Above.Heat extractor is formed by indulging many metallic heat exchanging tubes, for making heat extractor have higher absorbance, and protects
Heat extractor metal pipe material, it usually needs be coated with last layer heat absorbing coating on heat extractor surface.And current, study more
Solar energy heat absorbing coating materials'use temperature mostly below 600 DEG C.Therefore the suction of a kind of higher temperature is developed
Coated material is significant.
At present, the heat absorbing coating that domestic and international application is more mainly has solar selectively absorbing coating and heat resistance paint
Two big classes.As Chinese patent CN 103589275 A discloses a kind of solar energy heat absorbing coating and preparation method thereof,
Mainly by mixing such as nano magnetic iron powder, multiple Nano metal powder, ceramics, epoxy resin, multiple additives
Become.This coating has higher solar absorptance, is coated in heat extractor surface and can improve heat absorption efficiency, but
Application performance at high-temperature field is not yet checked, and it is mainly composed of epoxy resin, more than 300 DEG C
Hot environment under easily thermally decompose so that material failure, be not suitable for hot environment.
A kind of former pyromark high temperature lacquer being applied to space shuttle protection eyelid covering is used for preparing too by some enterprise
Sun can heat absorbing coating.This coating has preferable heat resistance and Corrosion Protection, and has higher solar energy
Heat absorption rate, can effectively protect heat extractor metal heat absorption tube；This material is only applicable to manual brushing, roller coat or air
The techniques such as spraying, when making pipe fitting, the proportion of goods damageds are higher.Pyromark high temperature lacquer is primarily present following asking simultaneously
Topic: although a, employing roller coat can ensure that material has higher utilization rate, preferable for plate property, but its
Poor for coated pipes then uniformity；When b, employing airless spray technique make tubing, material deterioration inside is higher,
And when making townhouse pipe fitting, between pipe, the uniformity of groove is difficult to ensure that；C, this material electric conductivity are relatively low；
D, viscosity of material are higher, record viscosity at more than 50s with being coated with four glasss.
Although the heat absorbing coating material of prior art has relatively low emissivity while having high-absorbility, can have
Effect absorbs solar energy, but uses temperature relatively low, is not suitable for high-temperature field, therefore, how to provide a kind of resistance to height
Warm, corrosion-resistant and high conductivity heat absorbing coating becomes current those skilled in the art needs the technology solved difficult
Topic.
Summary of the invention
The present invention solves the problems referred to above of the prior art, it is provided that a kind of solar energy high temperature heat absorbing coating material,
The high temperature endothermic coating of the technical program uses pyromark high temperature lacquer as a kind of raw material, it is ensured that heat absorption
The resistance to elevated temperatures of coating material, substantially increases the electrical conductivity of material, and it is applicable not only to roller coat and air spray
Be coated with, be also applied for electrostatic spraying, can the utilization rate of bigger raising material, reduce the viscosity of material, viscosity is
It is 20～30s.
For achieving the above object, the present invention is by the following technical solutions:
First aspect of the present invention provides a kind of solar energy high temperature heat absorbing coating material, by the group of volumes below number
Assignment system forms:
Further, described solar energy high temperature heat absorbing coating material is formulated by the component of volumes below number:
Further, described solar energy high temperature heat absorbing coating material is formulated by the component of volumes below number:
Further, described conductive agent be VP-G-03, BYK-ES-80, Moneng-6002, BNK-QQ,
In BNK-ES81, NT-2650, one or more mixtures form.
Further, described conductive agent is the mixture of VP-G-03 and Moneng-6002, by volume
Than meter, the consumption of described VP-G-03 and Moneng-6002 is 1:2.
The second aspect of the invention, also provides for the preparation method of a kind of solar energy high temperature heat absorbing coating material, tool
Body comprises the following steps:
(1) at normal temperatures, ethyl acetate, butyl acetate, acetone are mixed in mixing tank, stirs；
(2) in the solution that step (1) mixes, Pyromark and conductive agent are added, and fully dispersed stirring
Uniformly, coating material semi-finished product are obtained；
(3) coating material semi-finished product step (2) prepared are through filtration, canning sealing, obtain coating material
Product.
Further, also include adding in the coating material semi-finished product that step (2) prepares being used for strengthening coating
The antioxidant of adhesive force, and mix homogeneously；Described antioxidant is many selected from ascorbic acid and sodium salt thereof, tea
One or more in phenol and ascorbyl palmitate.
Further, described in every 100ml coating material semi-finished product, the addition of antioxidant is 1-3g.
The present invention uses technique scheme, compared with prior art, has the following technical effect that
The technical program uses heat resistance paint as a kind of primary raw material, makes heat absorbing coating materials application temperature significantly
Improve；After tested, after the heat absorbing coating prepared with this material is heated to 600 DEG C, total absorptivity is more than 95%；
High temperature lacquer material viscosity of the prior art is higher, records at more than 50s with being coated with four glasss, and coating material of the present invention
Expect by interpolation suitable new component, viscosity of material to be reduced, at below 20s, be provided with good levelability,
Can effectively control film thickness, prevent heat absorbing coating from chapping because of uneven thickness in high temperature cure process；
High temperature lacquer raw material electrical conductivity of the prior art is high, records more than 10000 with megameter, and the present invention is coated with
Layer material makes material electric conductivity be substantially reduced, at 50M below Ω cm, no by adding suitable new component
It is only applicable to traditional-handwork brushing, roller coat and aerial spraying, is also applied for electrostatic spraying.
Detailed description of the invention
The invention provides a kind of solar energy high temperature heat absorbing coating material and preparation method thereof, use and be originally intended to space flight
The heat resistance paint of aircraft has the resistance to elevated temperatures of excellence as a kind of raw material, prepared new material, can apply
Working environment more than 600 DEG C, and have relatively low viscosity and higher electrical conductivity.
Below by specific embodiment, the present invention is carried out detailed and concrete introduction, so that being better understood from this
Bright, but following embodiment is not limiting as the scope of the invention.
Embodiment 1 prepares solar energy high temperature heat absorbing coating material
1) proportioning raw materials is: (by volume number meter)
2) concrete preparation method comprises the following steps:
(1), at room temperature, 10 milliliters of ethyl acetate, 25 milliliters of butyl acetates, 3 milliliters of acetone mixing are taken
After, stir in mixing tank；
(2), the pyromark 60 milliliters after stirring, VP-G-03 type conductive agent 2 milliliters are added, and
Fully dispersed stir, obtain coating material semi-finished product；
(3) the coating material semi-finished product, by step (2) prepared seal after filtering and preserve, and obtain coating material
Product, detect quality.
Embodiment 2 prepares solar energy high temperature heat absorbing coating material
1) proportioning raw materials is: (by volume number meter)
2) concrete preparation method comprises the following steps:
(1), at room temperature, 10 milliliters of ethyl acetate are taken, 15 milliliters of butyl acetates, 2 milliliters of hexamethylene,
After 3 milliliters of acetone mixing, stir in mixing tank；
(2), the pyromark 65 milliliters after stirring, BYK-ES-80 type conductive agent 5 milliliters are added,
And fully dispersed stir, obtain coating material semi-finished product；
(3) the coating material semi-finished product, by step (2) prepared seal after filtering and preserve, and obtain coating material
Product, detect quality.
Embodiment 3 prepares solar energy high temperature heat absorbing coating material
1) proportioning raw materials is: (by volume number meter)
2) concrete preparation method comprises the following steps:
(1), at room temperature, 11 milliliters of ethyl acetate, 20 milliliters of butyl acetates, 4 milliliters of hexamethylene are taken
After mixing, stir in mixing tank；
(2), the pyromark 55 milliliters after stirring, BYK-ES-80 type conductive agent 6 milliliters are added,
And fully dispersed stir, obtain coating material semi-finished product；
(3) seal after the coating material semi-finished product that step (2) prepares being filtered and preserve, obtain coating material finished product,
Detection quality.
Embodiment 4 prepares solar energy high temperature heat absorbing coating material
1) proportioning raw materials is: (by volume number meter)
2) concrete preparation method comprises the following steps:
(1), at room temperature, 10 milliliters of ethyl acetate, 22 milliliters of butyl acetates, 5 milliliters of hexamethylene are taken
After mixing, stir in mixing tank；
(2), the pyromark 55 milliliters after stirring, BYK-ES-80 type conductive agent 4 milliliters are added,
And fully dispersed stir, obtain coating material semi-finished product, be subsequently adding sodium ascorbate 2.5g, by it
Mix homogeneously；
(3) mixed solution, by step (2) prepared seals after filtering and preserves, and obtains coating material finished product, inspection
Mass metering.
Embodiment 5 prepares solar energy high temperature heat absorbing coating material
1) proportioning raw materials is: (by volume number meter)
2) concrete preparation method comprises the following steps:
(1), at room temperature, 11 milliliters of ethyl acetate, 16 milliliters of butyl acetates, 4 milliliters of hexamethylene are taken
After mixing, stir in mixing tank；
(2), the pyromark 68 milliliters after stirring, BYK-ES-80 type conductive agent 9 milliliters are added,
And fully dispersed stir, obtain coating material semi-finished product, be subsequently adding anti-ascorbyl palmitate 1g,
Tea polyphenols 1g, and mix homogeneously；
(3) mixed solution, by step (2) prepared seals after filtering and preserves, and obtains coating material finished product, inspection
Mass metering.
Quality testing:
The solar energy high temperature heat absorbing coating material prepared for above-described embodiment 1-5 carries out electrical conductivity respectively, glues
Degree, adhesive force and pencil hardness detection, wherein, electrical conductivity uses ohmmeter detection, and viscosity uses painting four
Cup viscosity meter, adhesive force uses GB/T 9286-1988 standard, and pencil hardness uses GB/T 6739-2006
Standard.Concrete testing result such as table 1 below:
Table 1 electrical conductivity, viscosity, adhesive force and pencil hardness testing result
Note: according to GB/T 9286-1998, the coating material adhesive force of the present invention is more than 3 grades, by right
Base material carries out suitable surface roughness and processes, and adhesive force can be made to reach 0 grade, meets the requirement of reality application.
Application test:
The coating material prepared by above-described embodiment uses aerial spraying mode to be coated in heat extractor surface, is formed and inhales
Hot coating, and the heat absorbing coating of coating above-described embodiment coating material is carried out reflectance detection test.
Detecting instrument: spectral investigator numbering 950N6062104
Testing conditions: 300nm-2000nm；Temperature 21 DEG C；Humidity 50%RH；
Testing result: such as table 2 below
Table 2 total reflectivity and the measurement result of total absorptivity
Applied test result from above-mentioned table 1 quality measurements and table 2, use the heat absorption that this material prepares
After coating is heated to 600 DEG C, total absorptivity is more than 95%；Viscosity of material is recorded at below 20s with being coated with four glasss,
Be provided with good levelability, can effectively control film thickness, prevent heat absorbing coating in high temperature cure process because of
Uneven thickness and chap；Coating material of the present invention makes material electric conductivity exist by adding suitable new component
50M below Ω cm, is applicable not only to traditional-handwork brushing, roller coat and aerial spraying, is also applied for electrostatic
It is coated with.
Being described in detail the specific embodiment of the present invention above, but it is intended only as example, the present invention is also
It is not restricted to particular embodiments described above.To those skilled in the art, any the present invention is carried out
Equivalent modifications and substitute the most all among scope of the invention.Therefore, without departing from the spirit of the present invention and model
Enclose lower made impartial conversion and amendment, all should contain within the scope of the invention.
Claims (7)
1. a solar energy high temperature heat absorbing coating material, it is characterised in that by the component preparation of volumes below number
Become:
Solar energy high temperature heat absorbing coating material the most according to claim 1, it is characterised in that by volumes below
The component of number is formulated:
Solar energy high temperature heat absorbing coating material the most according to claim 1, it is characterised in that by volumes below
The component of number is formulated:
Solar energy high temperature heat absorbing coating material the most according to claim 1, it is characterised in that described conductive agent
For in VP-G-03, BYK-ES-80, Moneng-6002, BNK-QQ, BNK-ES81, NT-2650 one
Plant or multiple mixture forms.
5. the preparation method of the solar energy high temperature heat absorbing coating material as described in any one of claim 1-4, its feature
It is, comprises the following steps:
(1), at normal temperatures, ethyl acetate, butyl acetate, acetone are mixed in mixing tank, stirs；
(2), in the solution that step (1) mixes, Pyromark and conductive agent, and fully dispersed stirring are added
Uniformly, coating material semi-finished product are obtained；
(3) the coating material semi-finished product, by step (2) prepared, through filtration, canning sealing, obtain coating material
Finished product.
The preparation method of solar energy high temperature heat absorbing coating material the most according to claim 5, it is characterised in that
Also include adding antioxidant, and mix homogeneously in the coating material semi-finished product that step (2) prepares；Described
One or more in ascorbic acid and sodium salt, tea polyphenols and ascorbyl palmitate of antioxidant.
The preparation method of solar energy high temperature heat absorbing coating material the most according to claim 6, it is characterised in that
Described in every 100ml coating material semi-finished product, the addition of antioxidant is 1-3g.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610194743.6A CN105860830A (en) | 2016-03-30 | 2016-03-30 | A solar energy high-temperature resistant heat-absorption coating material and a preparing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610194743.6A CN105860830A (en) | 2016-03-30 | 2016-03-30 | A solar energy high-temperature resistant heat-absorption coating material and a preparing method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN105860830A true CN105860830A (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610194743.6A Pending CN105860830A (en) | 2016-03-30 | 2016-03-30 | A solar energy high-temperature resistant heat-absorption coating material and a preparing method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1609534A (en) * | 2004-11-23 | 2005-04-27 | 张耀明 | Solar energy high-temperature vacuum heat absorption and heat storage apparatus |
| CN102445008A (en) * | 2011-12-08 | 2012-05-09 | 南京工业大学 | Tower type solar water/steam composite plate-fin hot plate type heat absorber |
| WO2014149261A1 (en) * | 2013-03-15 | 2014-09-25 | Abengoa Solar Llc | Optically transparent receiver tubes for concentrated solar power generation |
-
2016
- 2016-03-30 CN CN201610194743.6A patent/CN105860830A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1609534A (en) * | 2004-11-23 | 2005-04-27 | 张耀明 | Solar energy high-temperature vacuum heat absorption and heat storage apparatus |
| CN102445008A (en) * | 2011-12-08 | 2012-05-09 | 南京工业大学 | Tower type solar water/steam composite plate-fin hot plate type heat absorber |
| WO2014149261A1 (en) * | 2013-03-15 | 2014-09-25 | Abengoa Solar Llc | Optically transparent receiver tubes for concentrated solar power generation |
Non-Patent Citations (4)
| Title |
|---|
| HO, CLIFFORD K.等: "Characterization of Pyromark 2500 Paint for High-Temperature Solar Receivers", 《JOURNAL OF SOLAR ENERGY ENGINEERING-TRANSACTIONS OF THE ASME》 * |
| LU JIANFENG等: "Optical Performances of Solar Selective Coatings under Different Preparation Conditions", 《2012 ASIA-PACIFIC POWER AND ENERGY ENGINEERING CONFERENCE (APPEEC) 》 * |
| 朱毅: "《家具表面装饰》", 30 September 2012 * |
| 胡飞燕等: "《涂料基础配方与工艺》", 30 June 2013 * |
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Application publication date: 20160817 |