CN105219091A - A kind of copper sulfide nano material is preparing the application near infrared shielding thermal isolation film - Google Patents
A kind of copper sulfide nano material is preparing the application near infrared shielding thermal isolation film Download PDFInfo
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- CN105219091A CN105219091A CN201510681026.1A CN201510681026A CN105219091A CN 105219091 A CN105219091 A CN 105219091A CN 201510681026 A CN201510681026 A CN 201510681026A CN 105219091 A CN105219091 A CN 105219091A
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- near infrared
- copper sulfide
- nano material
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- infrared shielding
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Abstract
The present invention relates to a kind of copper sulfide nano material and prepare the application near infrared shielding thermal isolation film, described copper sulfide nano material and transparent organic polymer mixed with polymers, prepare the near infrared shielding thermal insulation film of the organic/inorganic compound with good perviousness and near-infrared absorption.Near infrared shielding thermal isolation film in the present invention can pass through most visible ray and effectively shields near infrared light, can be used as the thermal isolation film of buildings or vehicle glass, in save energy and raising amenity, show very large application prospect.
Description
Technical field
The invention belongs to the Application Areas of copper sulfide nano material, particularly a kind of copper sulfide nano material is preparing the application near infrared shielding thermal isolation film.
Background technology
Along with glass port and glass curtain wall, the big area in modern architecture and the vehicles is popularized, and in order to regulate room temp, the utilization ratio of air-conditioning in the trend risen day by day, thus causes a large amount of wastes of social resources and the energy.As everyone knows, when energy dilemma situation is increasingly severe, save energy has become the main strategic of energy development.Thermal insulation film or coating, as a kind of lagging material, owing to can regulate room temp thus save energy and raising environmental amenity, are therefore widely used in buildings or vehicle glass.In numerous thermal insulation films, near infrared shielded film has the transparency and thermal insulation and more concerned because of it simultaneously.Near infrared shielded film mainly reaches heat insulation and transparent effect by absorption or reflect most near infrared light through most visible ray simultaneously.
At present, apply more near infrared shielded film and mainly contain two classes.One class is the metallic membrane prepared by vacuum plating or magnetron sputtering method, and as film such as plating Ag, Au, Ni etc., they can reflecting part visible ray and near infrared light thus reach the transmission reducing solar energy.But the preparation method of this film needs compare exacting terms and be not suitable for large-scale preparation.Equations of The Second Kind is the organic/inorganic compound film prepared by solution method, and near infrared absorption material and transparent organic high molecular polymer are mixed, then is coated in uniformly in substrate by the dry film obtaining having good flexibility and the transparency.At present, study more organic/inorganic compound film to mainly contain: metal-oxide semiconductor (MOS) film (ITO and ATO film etc.), this film absorbing wavelength can only be greater than the infrared light of 1500nm and is unsuitable for large-scale application containing expensive rare metal in starting material; Tungsten based nano-material film, this film can absorb the near infrared light of all wave bands through most visible ray, but the relative abundance of tungsten on the earth's crust is lower, and the preparation method of tungsten sill is complicated, harsh and consume energy high, limit its large-scale production and application equally.Therefore need to research and develop that a kind of raw material is extensive, cheap, preparation is simple, near infrared absorption material that is stable performance carrys out satisfied large-scale practical application for the preparation of organic/inorganic compound film.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of copper sulfide nano material and is preparing the application near infrared shielding thermal isolation film, in this invention, copper sulfide nano material presents weak absorption in visible region and shows very strong absorption characteristic in near-infrared region, be a kind of near-infrared absorption material efficiently, the near infrared shielding thermal isolation film utilizing copper sulfide nano material to participate in preparation has good flexibility, the transparency and near infrared absorption performance.After the irradiation of sunlight, much lower using the temperature that the glass scribbling this film raises as the temperature that air in the magazine of window raises than air in the magazine being window with common silica glass, in buildings or automobile heat-insulating glass, show huge using value.
A kind of copper sulfide nano material of the present invention is preparing the application near infrared shielding thermal isolation film, described copper sulfide nano material and transparent organic polymer mixed with polymers, prepare the near infrared shielding thermal insulation film of the organic/inorganic compound with good perviousness and near-infrared absorption.
Be coated with on the glass substrate after described copper sulfide nano material and transparent organic polymer mixed with polymers, dry, take off from glass after film hardening, namely obtain the near infrared shielding thermal insulation film of the organic/inorganic compound containing copper sulfide nano material.
The temperature of described drying is 40 ~ 100 DEG C.
The pattern of described copper sulfide nano material is nanometer sheet, ultrathin section, superstructure, nano particle or nanometer ball.
Described transparent organic polymer polymkeric substance is nontoxic, the transparency is good and easy film forming.
Described transparent organic polymer polymkeric substance is polydimethylsiloxane, polyethylene terephthalate PET, polypropylene PP, polyethylene PP or polyacrylic resin.
Described near infrared shielding thermal insulation film is the visible ray of 400-780nm through wavelength; Near infrared shielding thermal insulation film shielding wavelength is the near infrared light of 780-4000nm.
The synthetic method of this near-infrared absorption of cupric sulfide material is simple, cheap, stable performance, and it shows weak absorption in visible region and shows very strong absorption characteristic in near-infrared region.
Copper sulfide nano material has very strong light absorpting ability in near-infrared region, and effectively transform light energy can be become heat energy.
The film of the different copper sulfide content of same thickness and identical copper sulfide content different thickness can be prepared by adjustment copper sulfide nano material and the consumption of transparent organic polymer polymkeric substance in the present invention.
Copper sulfide nano material is a kind of excellent semi-conductor, shows a kind of strong surface plasmon resonance effect, causes it to have very strong photoabsorption in near-infrared region.The present invention utilizes this absorption near infrared light of copper sulfide nano material and the character through visible ray, develop and prepare organic/inorganic composite film with copper sulfide nano material and transparent organic polymer polymkeric substance, and with accounting for the near infrared light of total energy 50% in its shielding sunlight.
Under the irradiation of sunlight, more much lower than atmosphere temperature rising in the magazine being window with common silica glass using the temperature that the glass scribbling the near infrared shielding thermal isolation film that in the present invention, copper sulfide nano material and transparent organic polymer mixed with polymers obtain raises as air in the magazine of window.Therefore, in buildings or vehicle glass thermal isolation film, huge application prospect is shown with organic/inorganic compound film prepared by this copper sulfide nano material.
The characteristic of the near infrared shielded film in the present invention, two glass magazines equally can be manufactured in the simulation test of heat insulation contrast, one of them magazine is to scribble the glass of this near infrared shielded film as window, another one, using common silica glass as window, detects the change of two magazine Inside Air Temperatures under the irradiation of simulated solar irradiation.Under identical irradiation time and light intensity, window be the glass scribbling this near infrared shielded film magazine in temperature be starkly lower than control group.
beneficial effect
(1) the copper sulfide nano material synthetic method in the present invention is simple, cheap, stable performance, can strong absorption near infrared light;
(2) in the present invention, copper sulfide nano material is simple for the preparation of film during near infrared shielding thermal isolation film;
(3) the near infrared shielding thermal isolation film in the present invention has good flexibility, the transparency and near infrared absorption performance, for making the thermal isolation film of buildings or vehicle glass, in save energy and raising amenity, has very large application prospect.
Accompanying drawing explanation
Fig. 1 is the low power (a) of CuS nanosheet in embodiment 1, high power (b) scanning electron microscope (SEM) photograph and its low power (c), high power (d) transmission electron microscope picture;
Fig. 2 is XRD (a) and EDS (b) collection of illustrative plates of CuS nanosheet in embodiment 1;
Fig. 3 is ultraviolet-visible-near infrared absorption figure (a) and light thermal property figure (b) of CuS nanosheet in embodiment 1;
Fig. 4 is schema (a) that in embodiment 1, CuS nanosheet prepares CuS/PDMS composite membrane, the transparency (b) of film and flexible (c) figure;
Fig. 5 is the surface (a) of CuS/PDMS composite membrane and the scanning electron microscope (SEM) photograph of section (b) in embodiment 1;
Fig. 6 be in embodiment 1 film (a) of the different CuS content of same thickness and the ultraviolet-visible-near infrared of the film (b) of identical CuS content different thickness through spectrogram;
Fig. 7 is heat insulation contrast experiment figure (a) of xenon lamp simulated solar rayed in embodiment 1, and light intensity is respectively 0.4Wcm
-2(b), 0.5Wcm
-2(c) and 0.6Wcm
-2the comparison diagram of air temperature variations in two magazines time (d).
Embodiment
Below in conjunction with specific embodiment, set forth the present invention further.Should be understood that these embodiments are only not used in for illustration of the present invention to limit the scope of the invention.In addition should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the present invention's instruction.
Embodiment 1
By 0.085gCuCl
22H
2o and 2g polyvinylpyrrolidone (PVP) is dissolved in 30mL deionized water for stirring to dissolving; And then by 0.6mL (>=17wt%) (NH
4)
2s solution adds in above-mentioned solution, be transferred in autoclave after stirring 30min, in 180 DEG C of reaction 12h, after reaction terminates, naturally cooling, centrifugal, separation, namely obtain CuS nanosheet (see Fig. 1 and Fig. 2), these these nanometer sheet have more uniform dimension width ~ 200nm, thickness ~ 30nm as can be seen from Figure 1.As can be seen from the XRD figure of CuS nanosheet (Fig. 2 a) in, at 27.68 °, 29.27 °, 31.78 °, 32.85 °, 47.94 °, the diffraction peak at 52.71 ° and 59.34 ° places corresponds respectively to (101), (102), (103), (006), (110), (108) and (116) crystal face meets JCPDS06-0464.This nanometer sheet can well be disperseed in ethanol, presents very strong near infrared absorption character (see Fig. 3 a).At xenon lamp, (light intensity is 0.5Wcm to its pressed powder
-2) irradiation under, can effectively absorb near infrared light and change into heat, in 3min in heat up 43.2 DEG C (see Fig. 3 b).
Be dispersed in 10mL ethanolic soln by 40mgCuS nanometer sheet wherein, adding 10mL concentration is wherein 36.4mgmL
-1cetyl trimethylammonium bromide (CTAB) chloroformic solution, at 60 DEG C stir till all solvents all volatilize.The CuS powder obtained is dispersed in chloroform again, the CTAB that centrifugal removing is unnecessary.Finally, by CuS powder dispersion (2mgmL in the chloroform of 20mL
-1).
The preparation process of CuS/PDMS composite membrane is as Fig. 4 a, prepare the film of identical CuS content (0.1wt%) different thickness: get 10g polydimethylsiloxane and 1g solidifying agent and mix and obtain transparent viscous fluid, again above-mentioned for 5.5mL CuS chloroformic solution is added wherein, stir, obtain cyan solution; Get 2 respectively, 3, the cyan solution of 4mL is coated on silica glass, dry at 80 DEG C, after film hardening, it is taken off from sheet glass and obtains the film that thickness is 0.6mm, 0.8mm and 1mm.The film of preparation same thickness (0.8mm) different CuS content (0.05wt% and 0.2wt%) only needs the volume (2.75mL and 11mL) changing the CuS chloroformic solution added at identical conditions.Prepared film has the well transparency and flexible (see Fig. 4 b, c), and the smooth surface of film does not have crack, and CuS nanosheet is wrapped in (see Fig. 5 a, b) in PDMS substrate material uniformly.By the ultraviolet-visible-near-infrared transmitting energy of test different condition film, known they have good UV-light and infrared Absorption performance, there is good visible light permeability (see Fig. 6 a, b) simultaneously.Significantly, relative to the film of the different CuS content (0.05wt% ~ 0.2wt%) of same thickness (0.8mm), along with the increase of CuS content, film drops to 44.6% in the perviousness of visible ray by 90.1%, and the shielding of infrared light is raised to 87.6% from 48.4%.Same, when film is identical CuS content different thickness (0.6mm ~ 1.00mm), the perviousness of visible ray drops to 34.6% by 71.4%, and the shielding of infrared light is raised to 94.8% from 65.5%.
In the simulation test of heat insulation contrast, manufacture two glass magazines equally, the glass that one of them magazine covers using this CuS/PDMS film is as window, another is using simple glass as window, detects the change of two magazine Inside Air Temperatures (see Fig. 7 a) under the radiation situation of simulated solar irradiation.(0.4Wcm under identical irradiation time and different light intensity
-2, 0.5Wcm
-2and 0.6Wcm
-2), be starkly lower than control group (see Fig. 7 b, c, d) using the glass that CuS/PDMS composite membrane covers as temperature in the magazine of window.Therefore this CuS/PDMS composite membrane can be used as the thermal isolation film of buildings or vehicle glass, in save energy and raising amenity, show very large application prospect.
Claims (6)
1. copper sulfide nano material is preparing the application near infrared shielding thermal isolation film, it is characterized in that, described copper sulfide nano material and transparent organic polymer mixed with polymers, prepares the near infrared shielding thermal insulation film of organic/inorganic compound.
2. a kind of copper sulfide nano material according to claim 1 is preparing the application near infrared shielding thermal isolation film, it is characterized in that, be coated with on the glass substrate after described copper sulfide nano material and transparent organic polymer mixed with polymers, dry, take off from glass after film hardening, namely obtain the near infrared shielding thermal insulation film of the organic/inorganic compound containing copper sulfide nano material.
3. a kind of copper sulfide nano material according to claim 2 is preparing the application near infrared shielding thermal isolation film, and it is characterized in that, the temperature of described drying is 40 ~ 100 DEG C.
4. a kind of copper sulfide nano material according to claim 1 and 2 is preparing the application near infrared shielding thermal isolation film, and it is characterized in that, the pattern of described copper sulfide nano material is nanometer sheet, ultrathin section, superstructure, nano particle or nanometer ball.
5. a kind of copper sulfide nano material according to claim 1 and 2 is preparing the application near infrared shielding thermal isolation film, it is characterized in that, described transparent organic polymer polymkeric substance is polydimethylsiloxane, polyethylene terephthalate PET, polypropylene PP, polyethylene PP or polyacrylic resin.
6. a kind of copper sulfide nano material according to claim 1 is preparing the application near infrared shielding thermal isolation film, it is characterized in that, described near infrared shielding thermal insulation film is the visible ray of 400-780nm through wavelength; Near infrared shielding thermal insulation film shielding wavelength is the near infrared light of 780-4000nm.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106519277A (en) * | 2016-10-17 | 2017-03-22 | 南京航空航天大学 | Production method of high visible light transmittance film |
| CN107015394A (en) * | 2017-03-24 | 2017-08-04 | 北京大学 | Trans electric-controlled light-regulating film with shielding near infrared light function and preparation method thereof |
| CN107266706A (en) * | 2017-06-28 | 2017-10-20 | 中国科学院合肥物质科学研究院 | A kind of light flexible hydrophilic polyethylene copper sulfide photothermal deformation nano compound film and preparation method thereof |
| CN107383574A (en) * | 2017-07-13 | 2017-11-24 | 北京华腾新材料股份有限公司 | One kind has ultraviolet near infrared absorption heat shielding polyolefin coextruded film and preparation method |
| CN107474454A (en) * | 2017-07-13 | 2017-12-15 | 北京华腾新材料股份有限公司 | A kind of preparation method for dimming transparent heat-insulated co-extrusion polyolefin film |
| KR101834397B1 (en) | 2016-02-26 | 2018-03-05 | 성균관대학교산학협력단 | COATING COMPOSITION OF NANOSOLUTION CONTAINING Cu-S NANOPARTICLE AND PREPARING METHOD OF THE SAME |
| CN109824959A (en) * | 2019-01-30 | 2019-05-31 | 中国科学院合肥物质科学研究院 | A kind of prilling process of photothermal conversion film particles |
| CN109824927A (en) * | 2019-01-30 | 2019-05-31 | 中国科学院合肥物质科学研究院 | A kind of photo-thermal converting function method for manufacturing thin film and photo-thermal converting function film |
| CN114957753A (en) * | 2022-06-30 | 2022-08-30 | 郑州职业技术学院 | High-strength copper sulfide/nanocellulose/polyvinyl alcohol near-infrared shielding heat-insulating film and preparation method and application thereof |
| WO2023155277A1 (en) * | 2022-02-15 | 2023-08-24 | 广东汇齐新材料有限公司 | Infrared shielding type eva hot melt adhesive film and preparation method therefor |
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Cited By (13)
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| KR101834397B1 (en) | 2016-02-26 | 2018-03-05 | 성균관대학교산학협력단 | COATING COMPOSITION OF NANOSOLUTION CONTAINING Cu-S NANOPARTICLE AND PREPARING METHOD OF THE SAME |
| CN106519277A (en) * | 2016-10-17 | 2017-03-22 | 南京航空航天大学 | Production method of high visible light transmittance film |
| CN106519277B (en) * | 2016-10-17 | 2019-06-04 | 南京航空航天大学 | A kind of preparation method of visible light high transmittance film |
| CN107015394A (en) * | 2017-03-24 | 2017-08-04 | 北京大学 | Trans electric-controlled light-regulating film with shielding near infrared light function and preparation method thereof |
| CN107266706A (en) * | 2017-06-28 | 2017-10-20 | 中国科学院合肥物质科学研究院 | A kind of light flexible hydrophilic polyethylene copper sulfide photothermal deformation nano compound film and preparation method thereof |
| CN107383574B (en) * | 2017-07-13 | 2020-10-13 | 北京华腾新材料股份有限公司 | Polyolefin co-extrusion film with ultraviolet near-infrared absorption heat shielding function and preparation method thereof |
| CN107474454A (en) * | 2017-07-13 | 2017-12-15 | 北京华腾新材料股份有限公司 | A kind of preparation method for dimming transparent heat-insulated co-extrusion polyolefin film |
| CN107383574A (en) * | 2017-07-13 | 2017-11-24 | 北京华腾新材料股份有限公司 | One kind has ultraviolet near infrared absorption heat shielding polyolefin coextruded film and preparation method |
| CN109824959A (en) * | 2019-01-30 | 2019-05-31 | 中国科学院合肥物质科学研究院 | A kind of prilling process of photothermal conversion film particles |
| CN109824927A (en) * | 2019-01-30 | 2019-05-31 | 中国科学院合肥物质科学研究院 | A kind of photo-thermal converting function method for manufacturing thin film and photo-thermal converting function film |
| WO2023155277A1 (en) * | 2022-02-15 | 2023-08-24 | 广东汇齐新材料有限公司 | Infrared shielding type eva hot melt adhesive film and preparation method therefor |
| CN114957753A (en) * | 2022-06-30 | 2022-08-30 | 郑州职业技术学院 | High-strength copper sulfide/nanocellulose/polyvinyl alcohol near-infrared shielding heat-insulating film and preparation method and application thereof |
| CN114957753B (en) * | 2022-06-30 | 2024-01-05 | 郑州职业技术学院 | High-strength copper sulfide/nanocellulose/polyvinyl alcohol near-infrared shielding heat insulation film and preparation method and application thereof |
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