CN101974286B - Near-infrared radiation resistant coating film for energy-saving window - Google Patents
Near-infrared radiation resistant coating film for energy-saving window Download PDFInfo
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- CN101974286B CN101974286B CN2010105541956A CN201010554195A CN101974286B CN 101974286 B CN101974286 B CN 101974286B CN 2010105541956 A CN2010105541956 A CN 2010105541956A CN 201010554195 A CN201010554195 A CN 201010554195A CN 101974286 B CN101974286 B CN 101974286B
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Abstract
The invention discloses a near-infrared radiation resistant coating film for an energy-saving window, which is formed by a gold nano material with infrared absorption function, auxiliary materials and transparent base materials, wherein the mass ratio of gold nano material, auxiliary materials and transparent base materials is 0.001-0.02:0.01-0.2:100-500; the infrared absorption rate is 80-100%; and the visible light absorption rate is 10-40%. A preparation process is characterized by firstly adding the gold nano material to the auxiliary materials and stirring the mixture for 2-24h, and then adding the stirred mixture to the base materials and stirring and mixing the mixture uniformly. The coating film is coated on the outer surface of the glass and the coating times can be increased to increase the thickness, thus the coating film can achieve the effect of absorbing most near-infrared radiation and can not affect the permeability and vision of the visible light.
Description
Technical field
The present invention relates to the nanocomposite optical field, specifically a kind of coated film that contains the adsorbing close infrared light of composite nano materials.
Background technology
The sunlight wavelength (290-4000nm) that arrives at ground mainly is divided into three wave bands: and uv-radiation (wavelength X=290-400nm), visible light (λ=400-760nm), ir radiation (λ=760nm-1mm); Its intermediate infrared radiation further be divided into again near infrared IRA (λ=760nm-1440nm), in infrared IRB (λ=1440nm-3000nm), far infrared IRC (λ=3000nm-1mm).Though the photon energy of infrared light IR is lower than UV-light UV, IR accounts for 54% in total conversion energy of the sun, and UV only accounts for 7%.Most important part is IRA in the sunshine infrared energy, because arrive in the sun power on ground 30% energy in the IRA scope.
In the summer of sweltering heat, buildings, compartment and cabin etc. have the space of window all need use air conditioner refrigerating, have consumed a large amount of energy.Environment has been polluted in the consumption of fossil energy, has discharged carbonic acid gas, has aggravated Greenhouse effect.Building uses energy consumption to account for 80-90% in China's building energy consumption, and wherein 65% is used for air-conditioning and heating.For this reason, in hot weather, can stop effectively that the radiation of sunshine can reduce the rate of utilization of air-conditioning greatly, thereby reach purpose of energy saving.The research and the patent of at present existing many this respects.
Summary of the invention
The objective of the invention is to make a kind of when stopping most near infrared light, the anti-near-infrared radiation Energy Saving Windows that does not influence visible light transmissive is again used coated film.
The present invention adopts following technical scheme:
A kind of anti-near-infrared radiation Energy Saving Windows is used coated film; Have that gold nano-material, auxiliary material and the transparent base material of ir absorption form; Wherein the mass ratio of gold nano-material, auxiliary material and transparent base-material is 0.001-0.02: 0.01-0.2: 100-500; Infrared Absorption 80-100%, visible absorption 10-40%.
The present invention is the absorptive function with a kind of region of ultra-red light of composite nano materials, has the Energy Saving Windows coated film of the anti-near-infrared radiation of specific function in conjunction with the preparation of transparent auxiliary material and base material.
Composite nano materials is the mixture of a kind of gold nanorods and three kinds of gold-nano-pieces.Auxiliary material is the polymer of stabilized nanoscale material, like Vinylpyrrolidone polymer, and sulfydryl polyoxyethylene glycol etc.Base-material is urethane, epoxy resin, vinylformic acid paint vehicle.
The add-on of composite nano materials is adjusted the addition of composite nano materials on the basis that guarantees most of infrared Absorption, the specific absorption of control visible region does not influence visual effect.
Advantage of the present invention is:
When 1, product of the present invention can absorb most infrared light, do not influence the penetrating of visible light, do not have this function in patent family and the product: both can stop the radiation of sunshine to the full extent, not influence visual effect again;
2, product of the present invention is the nanostructure that comes from wherein because of its absorptive function, so do not exist photobleaching or duration of service long, causes problems such as its counter infrared ray light function reduction, thereby can increase the service life, and reduces the generation of raw-material consumption and environment rubbish.
Description of drawings
Fig. 1 absorption peak is at the Electronic Speculum figure of the gold nanorods at 840nm place.
Fig. 2 absorption peak is respectively at 1100nm, the Electronic Speculum figure of the gold-nano-piece at 1400nm and 1800nm place.
The coated film spectrogram of Figure 31 25 micron thick (visible absorption 40% below the 760nm, the above infrared Absorption of 760nm is close to 100%).
Fig. 4 specific absorption is calculated synoptic diagram.
The coated film spectrogram of Figure 52 50 micron thick (visible absorption 40% below the 760nm, the above infrared Absorption of 760nm is close to 100%).
Embodiment
Embodiment 1, the preparation of gold nanorods
Get 5mL 0.2M hexadecyl brometo de amonio (CTAB) aqueous solution and put into beaker, stir Dropwise 5 mL5 * 10 down
-4The M aqueous solution of chloraurate.Add the freshly prepared 0.01M sodium borohydride aqueous solution of 0.6mL more fast.Solution becomes pale brown look by light yellow.Continue to stir 2 minutes, subsequent use as seed liquor after 25 ℃ of environment leave standstill 2 hours.
Under 25 ℃ of environment, get the 2.5mL 0.2M CTAB aqueous solution and place beaker, add 0.125mL 4 * 10
-3The M silver nitrate aqueous solution.Add 2.5mL 1 * 10 again
-3The M aqueous solution of chloraurate mixes the back and adds 30 μ L0.0788M aqueous ascorbic acids, adds 10 μ L1M hydrochloric acid again after solution is become colorless by dark brown yellow, under 27～30 ℃ of environment, adds the above-mentioned seed liquor of 14 μ L.Left standstill 30 minutes, and promptly got gold nanorods suspension-s.The Electronic Speculum of gained gold nanorods and spectrum are seen accompanying drawing 1.
Embodiment 2, the preparation of gold-nano-piece
0.2ml 1% aqueous solution of chloraurate, the sodium borohydride aqueous solution of 0.6ml 100mM, 0.5ml 10mM Trisodium Citrate joins in the 19ml water successively.Stir that solution becomes orange after 2 minutes.Leave standstill and get after 2 hours in the following solution of a certain amount of orange solution adding: 1% aqueous solution of chloraurate 0.103ml 100mM ascorbic acid solution 0.2ml, 0.2M CTAB solution 5ml, the mixing solutions of 0.5mM liquor kalii iodide 1.5ml and 10ml water.Standing and reacting 4 hours adds certain density NaCl, with natural subsidence in the round-bottomed flask 12 hours, with the supernatant loss of gloss, in flask, adds pure water again, and supersound process 5 minutes adds pure water from transparent virescence, promptly gets gold-nano-piece suspension-s.80,60 and 40ul orange solution add-on can be absorbed the peak respectively 1100,1400 and the gold-nano-piece suspension-s of 1800nm.The Electronic Speculum of gained gold-nano-piece and spectrum are seen accompanying drawing 2.
Embodiment 3, the Energy Saving Windows coated film of visible absorption 20%, infrared Absorption 90%
Above-mentioned preparation with absorption peak at 840nm; Absorption intensity is that room temperature (20-25 ℃) stirred 24 hours in the Vinylpyrrolidone polymer of 1.0 the gold nanorods suspension-s 100ml 1mg/ml that is added to 100ml; Centrifugal 20 minutes at 2000 rev/mins; Remove supernatant, it is resuspended that deposition adds polyurethane paint, transfers absorbancy to 6.0 back to form Jenner's rod urethane suspension-s.
Above-mentioned preparation with absorption peak at 1100nm; Absorption intensity is that room temperature (20-25 ℃) stirred 24 hours in the Vinylpyrrolidone polymer of 1.0 the gold-nano-piece suspension-s 100ml 1mg/ml that is added to 100ml; Centrifugal 20 minutes at 1500 rev/mins; Remove supernatant, it is resuspended that deposition adds polyurethane paint, transfers absorbancy to 6.0 back to form gold-nano-piece urethane suspension-s.
Above-mentioned preparation with absorption peak at 1400nm; Absorption intensity is that room temperature (20-25 ℃) stirred 24 hours in the Vinylpyrrolidone polymer of 1.0 the gold-nano-piece suspension-s 100ml 1mg/ml that is added to 100ml; Centrifugal 20 minutes at 1200 rev/mins; Remove supernatant, it is resuspended that deposition adds polyurethane paint, transfers absorbancy to 6.0 back to form gold-nano-piece urethane suspension-s.
Above-mentioned preparation with absorption peak at 1800nm; Absorption intensity is that room temperature (20-25 ℃) stirred 24 hours in the Vinylpyrrolidone polymer of 1.0 the gold-nano-piece suspension-s 100ml 1mg/ml that is added to 100ml; Centrifugal 20 minutes at 1200 rev/mins; Remove supernatant, it is resuspended that deposition adds polyurethane paint, transfers absorbancy to 6.0 back to form gold-nano-piece urethane suspension-s.
Mix and to get final product the urethane suspension-s of above-mentioned four kinds of gold nano-materials being pressed equal-volume.When the thickness of coating reaches 125 microns, (see Fig. 3, wherein X-coordinate is a wavelength, and ordinate zou is a transmitance, the visible absorption 20% below the 760nm, the infrared Absorption 80% that 760nm is above can to reach the index of visible absorption 20%, infrared Absorption 80%.Specific absorption calculating method: with the spectrum of the pattern that sees through of this coated film of the long spectrophotometric determination of all-wave, the curve of spectrum is specific absorption with the per-cent that the area on top accounts for, and calculates synoptic diagram and sees accompanying drawing 4.The calculating that below relates to specific absorption all according to said method).
Embodiment 4, and visible absorption 40%, infrared light be the coating pad pasting of hypersorption almost
Above-mentioned preparation with absorption peak at 840nm; Absorption intensity is that room temperature (20-25 ℃) stirred 24 hours in the sulfydryl polyoxyethylene glycol aqueous solution of 1.0 the gold nanorods suspension-s 100ml 1mg/ml that is added to 100ml; Centrifugal 20 minutes at 2000 rev/mins; Remove supernatant, it is resuspended that deposition adds the vinylformic acid paint vehicle, transfers absorbancy to 6.0 back to form gold nanorods acrylic paint pulp suspension.
Above-mentioned preparation with absorption peak at 1100nm; Absorption intensity is that room temperature (20-25 ℃) stirred 24 hours in the sulfydryl polyoxyethylene glycol aqueous solution of 1.0 the gold-nano-piece suspension-s 100ml 1mg/ml that is added to 100ml; Centrifugal 20 minutes at 1500 rev/mins; Remove supernatant, it is resuspended that deposition adds the vinylformic acid paint vehicle, transfers absorbancy to 6.0 back to form gold-nano-piece acrylic paint pulp suspension.
Above-mentioned preparation with absorption peak at 1400nm; Absorption intensity is that room temperature (20-25 ℃) stirred 24 hours in the sulfydryl polyoxyethylene glycol aqueous solution of 1.0 the gold-nano-piece suspension-s 100ml 1mg/ml that is added to 100ml; Centrifugal 20 minutes at 1200 rev/mins; Remove supernatant, it is resuspended that deposition adds the vinylformic acid paint vehicle, transfers absorbancy to 6.0 back to form gold-nano-piece acrylic paint pulp suspension.
Above-mentioned preparation with absorption peak at 1800nm; Absorption intensity is that room temperature (20-25 ℃) stirred 24 hours in the sulfydryl polyoxyethylene glycol aqueous solution of 1.0 the gold-nano-piece suspension-s 100ml 1mg/ml that is added to 100ml; Centrifugal 20 minutes at 1200 rev/mins; Remove supernatant, it is resuspended that deposition adds the vinylformic acid paint vehicle, transfers absorbancy to 6.0 back to form gold-nano-piece acrylic paint pulp suspension.
Mix and to get final product above-mentioned four kinds of acrylic paint pulp suspensions being pressed equal-volume.When the thickness of coating reaches 250 microns, and the index of visible absorption 40%, infrared light hypersorption (see Fig. 5, wherein X-coordinate is a wavelength, and ordinate zou is a transmitance, the visible absorption 40% below the 760nm, the above infrared Absorption of 760nm is close to 100%).
Embodiment 5, and visible absorption 40%, infrared light be the coating pad pasting of hypersorption almost
Above-mentioned preparation with absorption peak at 840nm; Absorption intensity is that room temperature (20-25 ℃) stirred 24 hours in the halfcystine aqueous solution of 1.0 the gold nanorods suspension-s 100ml 1mg/ml that is added to 100ml; Centrifugal 20 minutes at 2000 rev/mins; Remove supernatant, it is resuspended that deposition adds epoxy resin, transfers absorbancy to 6.0 back to form the gold nanorods suspensions of epoxy resins.
Above-mentioned preparation with absorption peak at 1100nm; Absorption intensity is that room temperature (20-25 ℃) stirred 24 hours in the halfcystine aqueous solution of 1.0 the gold-nano-piece suspension-s 100ml 1mg/ml that is added to 100ml; Centrifugal 20 minutes at 1500 rev/mins; Remove supernatant, it is resuspended that deposition adds epoxy resin, transfers absorbancy to 6.0 back to form the gold-nano-piece suspensions of epoxy resins.
Above-mentioned preparation with absorption peak at 1400nm; Absorption intensity is that room temperature (20-25 ℃) stirred 24 hours in the halfcystine aqueous solution of 1.0 the gold-nano-piece suspension-s 100ml 1mg/ml that is added to 100ml; Centrifugal 20 minutes at 1200 rev/mins; Remove supernatant, it is resuspended that deposition adds epoxy resin, transfers absorbancy to 6.0 back to form the gold-nano-piece suspensions of epoxy resins.
Above-mentioned preparation with absorption peak at 1800nm; Absorption intensity is that room temperature (20-25 ℃) stirred 24 hours in the halfcystine aqueous solution of 1.0 the gold-nano-piece suspension-s 100ml 1mg/ml that is added to 100ml; Centrifugal 20 minutes at 1200 rev/mins; Remove supernatant, it is resuspended that deposition adds epoxy resin, transfers absorbancy to 6.0 back to form the gold-nano-piece suspensions of epoxy resins.
Mix and to get final product above-mentioned four kinds of suspensions of epoxy resins being pressed equal-volume.When the thickness that is coated with reaches 250 microns, the index of visible absorption 40%, infrared light hypersorption.
Claims (1)
1. an anti-near-infrared radiation Energy Saving Windows is used coated film; It is characterized in that forming by the gold nano-material with ir absorption, auxiliary material and transparent base material; Wherein the mass ratio of gold nano-material, auxiliary material and transparent base-material is 0.001-0.02:0.01-0.2:100-500; Infrared Absorption 80-100%, visible absorption 10-40%
Said auxiliary material is Vinylpyrrolidone polymer, sulfydryl polyoxyethylene glycol or halfcystine,
Said gold nano-material is made up of a kind of gold nanorods and three kinds of gold-nano-pieces; The delustring peak of gold nanorods is at 850 ± 50 nm; The absorption peak of three kinds of gold-nano-pieces is respectively at 1100 ± 100 nm, 1400 ± 100 nm, 1700 ± 100 nm; The ratio of the absorption peak strength between gold nanorods and the three kinds of gold-nano-pieces is 1:1:1:1
Said transparent base-material is urethane, epoxy resin or vinylformic acid paint vehicle.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105541956A CN101974286B (en) | 2010-11-22 | 2010-11-22 | Near-infrared radiation resistant coating film for energy-saving window |
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| CN2010105541956A CN101974286B (en) | 2010-11-22 | 2010-11-22 | Near-infrared radiation resistant coating film for energy-saving window |
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| Publication Number | Publication Date |
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| CN101974286A CN101974286A (en) | 2011-02-16 |
| CN101974286B true CN101974286B (en) | 2012-08-22 |
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| MX2012001387A (en) * | 2012-01-31 | 2013-07-30 | Enrique Alberto Vazquez Constantino | Paint which can absorb infrared rays through a film of nanoparticles. |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0065207A1 (en) * | 1981-05-08 | 1982-11-24 | Herberts Gesellschaft mit beschränkter Haftung | Use of pigmented coating compounds with reduced emission capability in the spectral range of the heat radiation for camouflage purposes |
| CN1435451A (en) * | 2002-01-29 | 2003-08-13 | 中国人民解放军海军工程大学 | Composite nanocoating for screening infrared ray and process thereof |
| CN101821039A (en) * | 2007-09-27 | 2010-09-01 | 巴斯夫欧洲公司 | Isolable and redispersable transition metal nanoparticles their preparation and use as ir absorbers |
| CN101835556A (en) * | 2007-12-28 | 2010-09-15 | 国立大学法人滋贺医科大学 | Gold nanoparticle composition, DNA chip, near infrared absorbent, drug carrier for drug delivery system (DDS), coloring agent, biosensor, cosmetic, composition for in vivo diagnosis and composition for therapeutic use |
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2010
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0065207A1 (en) * | 1981-05-08 | 1982-11-24 | Herberts Gesellschaft mit beschränkter Haftung | Use of pigmented coating compounds with reduced emission capability in the spectral range of the heat radiation for camouflage purposes |
| CN1435451A (en) * | 2002-01-29 | 2003-08-13 | 中国人民解放军海军工程大学 | Composite nanocoating for screening infrared ray and process thereof |
| CN101821039A (en) * | 2007-09-27 | 2010-09-01 | 巴斯夫欧洲公司 | Isolable and redispersable transition metal nanoparticles their preparation and use as ir absorbers |
| CN101835556A (en) * | 2007-12-28 | 2010-09-15 | 国立大学法人滋贺医科大学 | Gold nanoparticle composition, DNA chip, near infrared absorbent, drug carrier for drug delivery system (DDS), coloring agent, biosensor, cosmetic, composition for in vivo diagnosis and composition for therapeutic use |
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Effective date of registration: 20140616 Address after: 226600, Jiangsu County, Nantong City, Haian Province Qu town industrial concentration area Patentee after: Jiangsu Kefei Machinery Co., Ltd. Patentee after: Southeast University Address before: 210096 Jiangsu city Nanjing Province four pailou No. 2 Patentee before: Southeast University |
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