CN210390369U - Oxidation-resistant radiation refrigeration film - Google Patents
Oxidation-resistant radiation refrigeration film Download PDFInfo
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Abstract
The utility model discloses an anti-oxidant radiation refrigeration film, including radiation refrigeration layer, first ceramic reflection stratum, metal reflection stratum, second ceramic reflection stratum and the organic barrier layer that sets gradually, radiation refrigeration layer includes the resin base member and disperses radiation refrigeration granule in the resin base member. The radiation refrigeration layer mainly plays a role in radiation refrigeration and can protect the first ceramic reflection layer; the radiation refrigeration layer and the organic blocking layer have certain water and oxygen blocking performance, and most of water vapor can be prevented from reaching the first ceramic reflecting layer and the second ceramic reflecting layer; first ceramic reflection stratum and second ceramic reflection stratum play the effect of protection metal reflection stratum on the one hand, and on the other hand can increase whole radiation refrigeration film's reflectivity for radiation refrigeration film's glossiness is brighter, and the outward appearance effect is better.
Description
Technical Field
The utility model relates to a radiation refrigeration technology field especially relates to an anti-oxidant radiation refrigeration film.
Background
With the progress of science and technology, radiation refrigeration has shown obvious practical significance as a building air conditioning means without energy consumption.
In patent publication No. CN108219172A, a radiation cooling film and a method for preparing the same are disclosed. The radiation cooling film consists of a radiation base film layer and an Al film layer, wherein the Al film layer covers the surface of the radiation base film layer, the radiation base film layer is prepared from polyethylene resin and composite filler, namely the radiation base film layer is a high-molecular plastic film, and the Al film layer is a metal reflecting layer.
However, the performance of the polymer plastic film changes according to the change of climate, and when the temperature and humidity are too high, the water absorption of the plastic film is correspondingly increased, and the maximum water absorption can even reach 1%. After the plastic film is exposed to air, the absorption of water vapor can cause the metal reflective layer to yellow and oxidize, or to chemically react with air-controlling components under high humidity conditions.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to provide an antioxidant radiation refrigeration film, which has good water-oxygen separation performance, a metal reflecting layer which is difficult to be oxidized and has long service life.
The purpose of the utility model is realized by adopting the following technical scheme:
the utility model provides an anti-oxidant radiation refrigeration film, includes the radiation refrigeration layer, the radiation refrigeration layer includes the resin base member and disperses radiation refrigeration granule in the resin base member, the radiation refrigeration film is still including setting gradually first ceramic reflection stratum, metal reflection stratum, second ceramic reflection stratum and organic barrier layer on the radiation refrigeration layer.
Further, the first and second ceramic reflective layers are each independently selected from one or more of the following ceramic reflective layers: al (Al)2O3Layer, MgO layer, ZnO layer, TiO2Layer, CaCO3Layer, Nb2O3Layer, HfO2And (3) a layer.
Further, the metal reflective layer is selected from one or more of the following metal layers: al layer, Ag layer, Cr layer, Ti layer.
Further, the organic barrier layer is a plastic film and is bonded with the second ceramic reflection layer through a bonding agent, and the bonding agent is selected from polyacrylic acid transparent adhesive pressure-sensitive adhesive or polyurethane transparent adhesive pressure-sensitive adhesive.
Further, the organic barrier layer is transparent adhesive pressure-sensitive adhesive, and the material of the organic barrier layer is selected from polyacrylic acid transparent adhesive pressure-sensitive adhesive or polyurethane transparent adhesive pressure-sensitive adhesive.
Further, the radiation refrigeration layer comprises a first organic layer, a second organic layer and a third organic layer which are sequentially arranged, the third organic layer is positioned at one side close to the first ceramic reflection layer, the first organic layer comprises a first resin matrix and nano inorganic particles dispersed in the first resin matrix, the second organic layer comprises a second resin matrix and radiation refrigeration particles dispersed in the second resin matrix, the radiation refrigeration particles are micron-sized inorganic particles, and the third organic layer comprises a third resin matrix.
Further, the nano inorganic particles are selected from one or more of the following: nano SiO, nano TiO2Nano Al2O3Nano CaCO, nano-grade CaCO3And nano ZnO.
Further, the radiation refrigeration particles are selected from one or more of the following: SiO 22、SiC、TiO2The particle size of the radiation refrigeration particles is 3-18 mu m.
Further, the first resin matrix, the second resin matrix, the third resin matrix are selected from one or more of the following: poly (4-methylpentene-1), polyethylene terephthalate, polystyrene, polymethyl methacrylate.
Further, the thickness of the first ceramic reflecting layer is 1-100 nm, the thickness of the second ceramic reflecting layer is 1-100 nm, and the thickness of the metal reflecting layer is 1-300 nm.
Compared with the prior art, the beneficial effects of the utility model reside in that:
(1) the ceramic reflecting layers are arranged on the two sides of the metal reflecting layer, so that the reflectivity of the whole radiation refrigerating film can be increased, the luster of the radiation refrigerating film can be softer and brighter, and the appearance effect is better;
(2) the ceramic reflecting layers are arranged on the two sides of the metal reflecting layer, so that the metal reflecting layer can be prevented from being oxidized, and the weather resistance of the radiation refrigerating film is improved.
Drawings
FIG. 1 is a schematic view of one embodiment of a radiant cooling film of the present invention;
in the figure: 1. a radiation refrigeration layer; 11. a first organic layer; 12. a second organic layer; 13. a third organic layer; 2. a first ceramic reflective layer; 3. a metal reflective layer; 4. a second ceramic reflective layer; 5. an organic barrier layer.
Detailed Description
The present invention will be further described with reference to the following detailed description, and it should be noted that, in the premise of no conflict, the embodiments or technical features described below can be arbitrarily combined to form a new embodiment.
In the description of the present invention, it should be noted that, for the orientation words, if there are terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and positional relationship indicated are based on the orientation or positional relationship shown in the drawings, and only for the convenience of describing the present invention and simplifying the description, it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and not be construed as limiting the specific scope of the present invention.
It is noted that the terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
As shown in fig. 1, the utility model provides an anti-oxidant radiation refrigeration film, including radiation refrigeration layer 1, first ceramic reflection stratum 2, metal reflection stratum 3, second ceramic reflection stratum 4 and the organic barrier layer 5 that sets gradually, radiation refrigeration layer 1 includes the resin base member and disperses radiation refrigeration granule in the resin base member.
The radiation refrigeration layer 1 mainly plays a role of radiation refrigeration, and meanwhile, the resin matrix of the radiation refrigeration layer 1 can also play a role of protecting the first ceramic reflection layer 2. The radiation refrigeration layer 1 and the organic blocking layer 5 have certain water and oxygen blocking performance, and most of water vapor can be prevented from reaching the first ceramic reflection layer 2 and the second ceramic reflection layer 4, so that the first ceramic reflection layer 2 and the second ceramic reflection layer 4 have longer service life. First ceramic reflection stratum 2 and second ceramic reflection stratum 4 play the effect of protection metal reflection stratum 3 on the one hand, improve radiation refrigeration film's weatherability, and on the other hand can increase whole radiation refrigeration film's reflectivity for radiation refrigeration film's glossiness is brighter, and the outward appearance effect is better.
The first ceramic reflective layer 2, the second ceramic reflective layer 4, and the metal reflective layer 3 can largely block external heat radiation from entering the inside of the object.
In some embodiments, the materials of the first and second ceramic reflective layers 2, 4 are each independently selected from one or more of: al (Al)2O3、MgO、ZnO、TiO2、CaCO3、Nb2O3、HfO2. Alternatively, the first ceramic reflective layer 2 and the second ceramic reflective layer 4 are each independently selected from one or more of the following ceramic reflective layers: al (Al)2O3Layer, MgO layer, ZnO layer, TiO2Layer, CaCO3Layer, Nb2O3Layer, HfO2And (3) a layer.
In some embodiments, the first ceramic reflective layer 2 has a thickness of 1 to 100nm, and the second ceramic reflective layer 4 has a thickness of 1 to 100 nm.
The first ceramic reflective layer 2 and the second ceramic reflective layer 4 may be formed by vapor deposition or magnetron sputtering, or may be formed by other methods. The preparation methods of the first ceramic reflective layer 2 and the second ceramic reflective layer 4 belong to the prior art in the field, and the present invention is not described in detail.
In some embodiments, the material of the metallic reflective layer 3 is selected from one or more of the following: al, Ag, Cr, Ti. Alternatively, the metallic reflective layer 3 is selected from one or more of the following metallic layers: al layer, Ag layer, Cr layer, Ti layer.
In some embodiments, the thickness of the metal reflective layer 3 is 1 to 300 nm.
The metal reflective layer 3 may be formed by vapor deposition or magnetron sputtering, or may be formed by other methods. The preparation method of the metal reflecting layer 2 belongs to the prior art in the field, and the utility model is not described in detail.
In some embodiments, the radiation refrigerating layer 1 includes a first organic layer 11, a second organic layer 12, and a third organic layer 13 sequentially disposed, wherein the first organic layer 11 is located on a side away from the first ceramic reflective layer 2, and the third organic layer 13 is located on a side close to the first ceramic reflective layer 2.
The first organic layer 11 includes a first resin matrix and nanoscale inorganic particles dispersed in the first resin matrix, including but not limited to: nano SiO2TiO 2 nanoparticles2Nano Al2O3Nano CaCO, nano-grade CaCO3And nano ZnO. The nano-inorganic particles exert special effects on the physical and chemical properties of the first organic layer 11, and can improve the characteristics of self-cleaning property, ductility, toughness, rigidity, strength, barrier property, heat resistance and dimensional stability of the first organic layer 11. The nanoscale inorganic particles have a three-dimensional network structure, have a very large specific surface area, show very large activity, and can form the three-dimensional network structure in the preparation process of the organic layer. The nanoscale inorganic particles have a strong infrared reflection characteristic. The first resin matrix is selected from one or more of: poly 4-methylpentene-1 (TPX), polyethylene terephthalate (PET), Polystyrene (PS), polymethyl methacrylate (PMMA).
In some embodiments, the first organic layer 11 further comprises an ultraviolet absorber dispersed in the first resin matrix, including, but not limited to: benzophenone ultraviolet absorbent, phenylpropylamine ultraviolet absorbent and hindered amine ultraviolet absorbent.
The second organic layer 12 includes a second resin matrix and radiation-cooled particles dispersed in the second resin matrix, the radiation-cooled particles being in the micron orderInorganic particles, radiation refrigeration particles include, but are not limited to: SiO 22、SiC、TiO2The particle size of the radiation refrigeration particles is 3-18 mu m. The radiation refrigeration particles have high infrared emissivity in a wave band of 8-13 mu m, and play a role in radiation refrigeration. The second resin matrix is selected from one or more of: poly 4-methylpentene-1 (TPX), polyethylene terephthalate (PET), Polystyrene (PS), polymethyl methacrylate (PMMA).
The third organic layer 13 includes a third resin matrix. The third resin matrix is selected from one or more of: poly 4-methylpentene-1 (TPX), polyethylene terephthalate (PET), Polystyrene (PS), polymethyl methacrylate (PMMA).
The first resin matrix, the second resin matrix, and the third resin matrix may be the same or different. In order to improve compatibility of the first organic layer 11, the second organic layer 12, and the third organic layer 13, the first resin matrix, the second resin matrix, and the third resin matrix are preferably the same.
In some embodiments, the organic barrier layer 5 is a plastic film, and the organic barrier layer 5 is bonded to the second ceramic reflective layer 4 by an adhesive. Materials of the organic barrier layer 5 include, but are not limited to: polyvinylidene chloride (PVDC), ethylene vinyl alcohol copolymer (EVOH), Polyamide (PA), polyethylene terephthalate (PET), Polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), poly (4-methylpentene-1) (TPX), Polystyrene (PS), polymethyl methacrylate (PMMA). The organic barrier layer 5 is preferably made of a polymer material having excellent water and oxygen barrier properties. Binders include, but are not limited to: polyacrylic acid transparent adhesive pressure-sensitive adhesive and polyurethane transparent adhesive pressure-sensitive adhesive.
In other embodiments, the organic barrier layer 5 is a transparent adhesive pressure sensitive adhesive, and the organic barrier layer 5 is used to protect the second ceramic reflective layer 4 on the one hand and to allow the radiation-cooled film to be adhered to the surface of an object through the organic barrier layer 5 on the other hand. Materials of the organic barrier layer 5 include, but are not limited to: polyacrylic acid transparent adhesive pressure-sensitive adhesive and polyurethane transparent adhesive pressure-sensitive adhesive.
[ example 1 ]
The utility model provides a radiation refrigeration film, includes radiation refrigeration layer 1, first ceramic reflection stratum 2, metal reflection stratum 3, second ceramic reflection stratum 4 and organic barrier layer 5 that set gradually. The radiation refrigerating layer 1 comprises a first organic layer 11, a second organic layer 12 and a third organic layer 13, and the first ceramic reflective layer 2 is deposited on the third organic layer 13.
The first organic layer 11 includes a resin matrix TPX, nano SiO dispersed in TPX2And an ultraviolet absorber; the second organic layer comprises a resin matrix TPX and SiO having a particle size of 3 μm dispersed in the TPX2Particles; the third organic layer comprises a resin matrix TPX.
The first ceramic reflecting layer 2 is Al2O3A layer having a thickness of 20 nm; the metal reflecting layer 3 is an Al layer and has the thickness of 50 nm; the second ceramic reflecting layer 4 is Al2O3A layer having a thickness of 20 nm; the organic barrier layer 5 is a PET plastic film.
[ example 2 ]
The utility model provides a radiation refrigeration film, includes radiation refrigeration layer 1, first ceramic reflection stratum 2, metal reflection stratum 3, second ceramic reflection stratum 4 and organic barrier layer 5 that set gradually. The radiation refrigerating layer 1 comprises a first organic layer 11, a second organic layer 12 and a third organic layer 13, and the first ceramic reflective layer 2 is deposited on the third organic layer 13.
The first organic layer 11 comprises a resin matrix TPX, nano TiO dispersed in the TPX2And an ultraviolet absorber; the second organic layer comprises a resin matrix TPX and TiO with a particle size of 6 μm dispersed in the TPX2Particles; the third organic layer comprises a resin matrix TPX.
The first ceramic reflecting layer 2 is an MgO layer with the thickness of 20 nm; the metal reflecting layer 3 is a Ti layer with the thickness of 50 nm; the second ceramic reflecting layer 4 is TiO2A layer having a thickness of 20 nm; the organic barrier layer 5 is a PET plastic film.
[ example 3 ]
The utility model provides a radiation refrigeration film, includes radiation refrigeration layer 1, first ceramic reflection stratum 2, metal reflection stratum 3, second ceramic reflection stratum 4 and organic barrier layer 5 that set gradually. The radiation refrigerating layer 1 comprises a first organic layer 11, a second organic layer 12 and a third organic layer 13, and the first ceramic reflective layer 2 is deposited on the third organic layer 13.
The first organic layer 11 includes a resin matrix TPX, nano Al dispersed in TPX2O3And an ultraviolet absorber; the second organic layer includes a resin matrix TPX and SiC particles having a particle diameter of 12 μm dispersed in the TPX; the third organic layer comprises a resin matrix TPX.
The first ceramic reflecting layer 2 is a ZnO layer and has the thickness of 20 nm; the metal reflecting layer 3 is a Cr layer with the thickness of 50 nm; the second ceramic reflecting layer 4 is a ZnO layer, and the thickness is 20 nm; the organic barrier layer 5 is a PET plastic film.
[ example 4 ]
The utility model provides a radiation refrigeration film, includes radiation refrigeration layer 1, first ceramic reflection stratum 2, metal reflection stratum 3, second ceramic reflection stratum 4 and organic barrier layer 5 that set gradually. The radiation refrigerating layer 1 comprises a first organic layer 11, a second organic layer 12 and a third organic layer 13, and the first ceramic reflective layer 2 is deposited on the third organic layer 13.
The first organic layer 11 comprises a resin matrix TPX, nano CaCO dispersed in the TPX3And an ultraviolet absorber; the second organic layer includes a resin matrix TPX and SiC particles having a particle diameter of 18 μm dispersed in the TPX; the third organic layer comprises a resin matrix TPX.
The first ceramic reflecting layer 2 is CaCO3A layer having a thickness of 20 nm; the metal reflecting layer 3 is an Ag layer with the thickness of 50 nm; the second ceramic reflective layer 4 is Nb2O3A layer having a thickness of 20 nm; the organic barrier layer 5 is a PET plastic film.
[ example 5 ]
The utility model provides a radiation refrigeration film, includes radiation refrigeration layer 1, first ceramic reflection stratum 2, metal reflection stratum 3, second ceramic reflection stratum 4 and organic barrier layer 5 that set gradually. The radiation refrigerating layer 1 comprises a first organic layer 11, a second organic layer 12 and a third organic layer 13, and the first ceramic reflective layer 2 is deposited on the third organic layer 13.
The first organic layer 11 includes a resin matrix TPX, nano ZnO dispersed in TPX, and an ultraviolet absorber; the second organic layer comprises a resin matrix TPX and SiO having a particle size of 6 μm dispersed in the TPX2Particles;the third organic layer comprises a resin matrix TPX.
The first ceramic reflective layer 2 is HfO2A layer having a thickness of 20 nm; the metal reflecting layer 3 is an Al layer and has the thickness of 50 nm; the second ceramic reflecting layer 4 is TiO2A layer having a thickness of 20 nm; the organic barrier layer 5 is a PET plastic film.
Comparative example 6
A radiation refrigeration film comprises a radiation refrigeration layer, a metal reflection layer and an organic barrier layer which are sequentially arranged. The radiation refrigerating layer comprises a resin matrix TPX and SiO with the grain diameter of 12 mu m dispersed in the TPX2Particles; the metal reflecting layer is an Al layer and has the thickness of 90 nm; a metallic reflective layer is deposited on the radiation refrigerating layer.
The relevant experiments were carried out for the above examples and comparative examples, and the contents of the experiments were as follows:
and the test of ageing resistance comprises ① high temperature and high humidity test, namely placing the film in a high and low temperature alternating-humid-heat test box for 1000 hours at 85 ℃ and 85% RH to observe the change conditions of the appearance, the reflectivity and the infrared emissivity of the film before and after ageing, and ② low temperature storage test, namely placing the film in a high and low temperature alternating-humid-heat test box for 1000 hours at-30 ℃ to observe the change conditions of the appearance, the reflectivity and the infrared emissivity of the film before and after ageing.
Testing of reflectivity R: the film is put into a Perkin Elmer, Lambda 950 type UV/Vis/NIRSpectrometer (ultraviolet/visible/near infrared spectrophotometer) to measure the reflectivity of the film in the wavelength range of 300-2500 nm at a measurement interval of 1 nm. And taking the average value of the reflectivity of the film in the wave band of 300-2500 nm as the reflectivity R of the film.
Measurement of infrared emissivity E: the infrared radiance of 7-14 μm wavelength was measured using SOC-100 Hemificial directive refiectometer.
The measurement results are shown in Table 1
TABLE 1
As can be seen from the data in table 1, the aging resistance of the radiation refrigeration films of examples 1 to 5 is significantly better than that of the radiation refrigeration film of comparative example 6; in addition, the ceramic reflecting layer is added in the embodiments 1-5, so that the reflectivity of the radiation refrigeration film of the embodiments 1-5 in a wave band of 300-2500 nm is higher than that of the comparative example 6, and the emissivity of the radiation refrigeration film in a wave band of 7-14 μm is higher than that of the comparative example 6.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.
Claims (10)
1. The utility model provides an anti-oxidant radiation refrigeration film, includes the radiation refrigeration layer, the radiation refrigeration layer includes the resin base member and disperses radiation refrigeration granule in the resin base member, its characterized in that, the radiation refrigeration film is still including setting gradually first ceramic reflection stratum, metal reflection stratum, second ceramic reflection stratum and organic barrier layer on the radiation refrigeration layer.
2. The oxidation resistant radiation chilling film of claim 1, wherein the first ceramic reflective layer and the second ceramic reflective layer are each independently selected from one or more of the following ceramic reflective layers: al (Al)2O3Layer, MgO layer, ZnO layer, TiO2Layer, CaCO3Layer, Nb2O3Layer, HfO2And (3) a layer.
3. The oxidation resistant radiation chilling film of claim 1, wherein the metallic reflective layer is selected from one or more of the following metallic layers: al layer, Ag layer, Cr layer, Ti layer.
4. The oxidation resistant radiation refrigeration film of claim 1 wherein said organic barrier layer is a plastic film, said organic barrier layer is bonded to said second ceramic reflective layer by an adhesive selected from the group consisting of polyacrylic transparent adhesive pressure sensitive adhesives or polyurethane transparent adhesive pressure sensitive adhesives.
5. The oxidation resistant radiation refrigeration film of claim 1 wherein said organic barrier layer is a transparent tacky pressure sensitive adhesive.
6. The oxidation-resistant radiation refrigeration film according to any one of claims 1-5, wherein the radiation refrigeration layer comprises a first organic layer, a second organic layer and a third organic layer arranged in sequence, the third organic layer is positioned at one side close to the first ceramic reflection layer, the first organic layer comprises a first resin matrix and nano inorganic particles dispersed in the first resin matrix, the second organic layer comprises a second resin matrix and radiation refrigeration particles dispersed in the second resin matrix, the radiation refrigeration particles are micron inorganic particles, and the third organic layer comprises a third resin matrix.
7. The oxidation-resistant radiation refrigeration film according to claim 6, wherein the nano inorganic particles are selected from one of the following: nano SiO, nano TiO2Nano Al2O3Nano CaCO, nano-grade CaCO3And nano ZnO.
8. The oxidation-resistant radiant refrigerant film as recited in claim 6 wherein the radiant refrigerant particles are selected from one of: SiO 22、SiC、TiO2The particle size of the radiation refrigeration particles is 3-18 mu m.
9. The oxidation resistant radiation chilling film of claim 6, wherein the first, second, and third resin matrices are selected from one of: poly (4-methylpentene-1), polyethylene terephthalate, polystyrene, polymethyl methacrylate.
10. The oxidation-resistant radiation refrigeration film according to any one of claims 1 to 5, wherein the first ceramic reflective layer has a thickness of 1 to 100nm, the second ceramic reflective layer has a thickness of 1 to 100nm, and the metal reflective layer has a thickness of 1 to 300 nm.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109572114A (en) * | 2018-12-19 | 2019-04-05 | 宁波瑞凌辐射制冷科技有限公司 | A kind of oxidation resistant radiation refrigeration film |
| CN111468378A (en) * | 2020-05-09 | 2020-07-31 | 中国科学院上海技术物理研究所 | Low-cost radiation refrigeration film capable of being applied in large area and preparation method |
-
2018
- 2018-12-19 CN CN201822139585.1U patent/CN210390369U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109572114A (en) * | 2018-12-19 | 2019-04-05 | 宁波瑞凌辐射制冷科技有限公司 | A kind of oxidation resistant radiation refrigeration film |
| CN111468378A (en) * | 2020-05-09 | 2020-07-31 | 中国科学院上海技术物理研究所 | Low-cost radiation refrigeration film capable of being applied in large area and preparation method |
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